KR20240076693A - Information Processing System - Google Patents

Abstract

The information processing system includes a first protection relay device for protecting the power system using the amount of electricity obtained from the power system, and an information processing device that communicates with the first protection relay device. The first protection relay device receives first format information from the information processing device, and when the first relay element of the first protection relay device operates, based on the first format information, One data group is identified, and the first data group is transmitted to the information processing device in accordance with a request from the information processing device. The information processing device creates a first report on the operation of the first relay element based on the first data group received from the first protection relay device and outputs the first report.

Description

Information Processing System

The present disclosure relates to an information processing system including an information processing device and a protection relay device.

[0002] [0002] Techniques for creating recording sheets that describe the results of various tests on protection relay devices have conventionally been known. For example, in Japanese Patent Laid-Open No. 2000-232725, N pieces of partial format data are stored in the first ROM section, and n pieces of full format data are stored in the second ROM section, and these data can be viewed by pressing the operation keys while viewing the display section. It is configured so that measurement result data can be recorded by selecting one by manipulating it to form one recording paper.

The technology in Japanese Patent Application Laid-Open No. 2000-232725 examines how to easily obtain a recording sheet recording the results of testing a protection relay device by matching it to a wide variety of tests. On the other hand, when the protection relay device actually detects a system fault (for example, when the relay element of the protection relay device operates), various information is collected to analyze the operation of the relay element, etc., and the various information is recorded. A report is written that says In the current state, highly skilled personnel (for example, maintenance workers at substations in charge of protection relay devices, etc.) prepare reports based on information acquired from the protection relay devices. On the other hand, there was a problem that it was difficult for a person in charge with low skill level to properly prepare a report containing the information necessary for analyzing the operation of relay elements, etc.

An object of one aspect of the present disclosure is to provide an information processing system capable of appropriately and easily outputting a report on the relay operation of a protection relay device.

An information processing system according to an embodiment includes a first protection relay device for protecting the power system using the amount of electricity obtained from the power system, and an information processing device that communicates with the first protection relay device. The first protection relay device receives first format information from the information processing device, and when the first relay element of the first protection relay device operates, based on the first format information, One data group is identified, and the first data group is transmitted to the information processing device in accordance with a request from the information processing device. The information processing device creates a first report on the operation of the first relay element based on the first data group received from the first protection relay device and outputs the first report.

An information processing system according to another embodiment includes a first protection relay device for protecting the power system using the amount of electricity obtained from the power system, and an information processing device that communicates with the first protection relay device. When the first relay element of the first protection relay device operates, the information processing device identifies the first data group related to the operation of the first relay element based on the format information and, with respect to the first protection relay device, Request one data group, create a first report on the operation of the first relay element based on the first data group received from the first protection relay device, and output the first report.

The above and other objects, features, aspects and advantages of this invention will become apparent from the following detailed description of this invention understood in conjunction with the accompanying drawings.

1 is a diagram showing an example of the overall configuration of an information processing system.
Figure 2 is a block diagram showing an example of the hardware configuration of a protection relay device.
3 is a sequence diagram showing an example of a processing procedure of the information processing system according to Embodiment 1.
Figure 4 is a diagram showing an example of a report according to Embodiment 1.
Fig. 5 is a sequence diagram showing an example of a processing procedure of the information processing system according to Embodiment 2.
Figure 6 is a diagram showing a report according to Embodiment 2.
Fig. 7 is a sequence diagram showing an example of a processing procedure of the information processing system according to Embodiment 3.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this disclosure will be described with reference to the drawings. In the following description, like parts are given the same symbols. Their names and functions are also the same. Therefore, their detailed description will not be repeated.

Embodiment 1.

＜Overall composition＞

1 is a diagram showing an example of the overall configuration of the information processing system 1000. Referring to FIG. 1, protection relay devices 100A and 100B (hereinafter also collectively referred to as “protection relay devices 100”) are, for example, digital protection relay devices installed inside an electric power plant. In this embodiment, the protection relay device 100A acquires data on electric quantities (e.g., current, voltage, etc.) related to the transmission line L constituting the power system. The protection relay device 100A protects the transmission line (L) by detecting an accident in the power system (for example, the transmission line (L)) using the corresponding electric quantity data.

Like the protection relay device 100A, the protection relay device 100B collects data on the amount of electricity related to the transmission line L. That is, the protection relay device 100B is configured to acquire the same amount of electricity as the amount of electricity that the protection relay device 100A acquires from the power system.

Here, the same amount of electricity not only means completely the same amount of electricity, but also means including substantially the same amount of electricity. For example, as shown in FIG. 1, when the protection relay device 100A and the protection relay device 100B acquire electric quantity from the same instrument current transformer 2 and instrument transformer 4, the protection relay device 100A ) and the protection relay device 100B acquire completely the same amount of electricity.

On the other hand, in the power system (e.g., transmission line L), when another instrument current transformer is provided in the transmission line L near the instrument current transformer 2 (e.g., within the same substation), The current measured by other instrument current transformers is substantially the same as the current measured by the instrument current transformer 2. Similarly, when another instrument transformer is provided on the transmission line L in the vicinity of the instrument transformer 4, the voltage measured by the other instrument transformer is substantially the same as the voltage measured by the instrument transformer 4. do. Accordingly, when the protection relay device 100B acquires electric quantity from these other instrument current transformers and other instrument transformers, the corresponding electric quantity is obtained by the protection relay device 100A from the instrument current transformer 2 and the instrument transformer 4. It is substantially the same as the amount of electricity acquired.

The protection relay device 100B may protect a protection target different from the protection relay device 100A (for example, a transformer provided on the power transmission line L) based on the acquired electric quantity data. Alternatively, the protection relay device 100B may be configured to protect the transmission line L based on the electric quantity data.

Inside the electric plant, protection relay devices (100A, 100B), instrument current transformers (2), instrument transformers (4), circuit breakers (6), etc. are installed. The instrument current transformer (2) measures the current flowing through the transmission line (L). The instrument transformer (4) measures the voltage generated in the transmission line (L). The current data measured by the instrument transformer 2 and the voltage data measured by the instrument transformer 4 are input to the protection relay devices 100A and 100B.

The protection relay device 100A performs a relay operation for accident detection using the collected electric quantity data to determine whether or not an accident has occurred in the power system (here, the transmission line L). When the protection relay device 100A detects an accident in the transmission line L, it outputs an opening command (for example, a trip signal) to the circuit breaker 6. Additionally, when only one of current and voltage is used for relay calculation, the protection relay device 100A may be configured to take the current or voltage required for relay calculation. Typically, the protection relay device 100B performs a relay operation for accident detection using the collected electric quantity data to determine whether or not an accident has occurred in another protection target (for example, a transformer).

Additionally, when the protection relay device 100A detects an accident (that is, when the relay element operates), it transmits operation information indicating that the relay element has operated to the protection relay device 100B. Additionally, the protection relay device 100A may be configured to transmit the operation information to the information processing device 200.

The information processing device 200 is configured to communicate with the protection relay devices 100A and 100B. The information processing device 200 creates various reports using, for example, information from the protection relay devices 100A and 100B.

＜Hardware configuration＞

(protective relay device)

FIG. 2 is a block diagram showing an example of the hardware configuration of the protection relay device 100. The protection relay device 100 is a hardware configuration and includes an auxiliary transformer 10, an analog to digital (A/D) conversion unit 20, and an arithmetic processing unit 30.

The auxiliary transformer 10 takes the amount of electricity from the instrument current transformer 2 and the instrument transformer 4, converts it into a voltage signal appropriate for signal processing in the internal circuit, and outputs it. The A/D converter 20 takes the electric quantity (i.e., analog electric quantity) output from the auxiliary transformer 10 and converts it into digital data. Specifically, the A/D converter 20 includes filters 21 and 23, sample hold circuits (corresponding to SH circuits in the figure) 24 and 25, multiplexer 26, and A/D converter ( 27).

The filters 21 and 23 are analog filters and remove high-frequency noise components from the current and voltage waveform signals output from the auxiliary transformer 10. The outputs of the filters 21 and 23 are input to the sample hold circuits 24 and 25, respectively. The sample hold circuits 24 and 25 sample the current and voltage waveform signals output from the filters 21 and 23, respectively, at a predetermined sampling period.

Based on the timing signal input from the calculation processing unit 30, the multiplexer 26 sequentially converts the waveform signals input from the sample hold circuits 24 and 25 into time series and outputs them to the A/D converter 27. The A/D converter 27 converts the waveform signal input from the multiplexer 26 from analog data to digital data. The A/D converter 27 outputs the digitally converted waveform signal to the calculation processing unit 30.

The operation processing unit 30 is mainly composed of a microcomputer. Specifically, the calculation processing unit 30 includes a Central Processing Unit (CPU) 32, Read Only Memory (ROM) 33, Random Access Memory (RAM) 34, and an auxiliary memory device 35. , a digital output (DO) circuit 36, a digital input (DI) circuit 37, a display 38, an input interface 39, and a communication interface 40. These are combined into a bus (31).

The CPU 32 controls the protection relay device 100 by reading and executing a program previously stored in the ROM 33. RAM 34 as volatile memory and ROM 33 as non-volatile memory are used as main memory of CPU 32. The ROM 33 stores programs and setting values for signal processing, etc.

The CPU 32 receives digital data from the A/D conversion unit 20 via the bus 31. The CPU 32 performs a relay operation for accident detection using the obtained digital data according to a program stored in the ROM 33. The CPU 32 determines the presence or absence of an accident based on the results of each relay operation.

When the CPU 32 detects an accident (i.e., determines that an accident has occurred), the CPU 32 connects the circuit breaker 6 installed in the power system to isolate the accident section from the power system through the DO circuit 36. Outputs an open command for

The auxiliary memory device 35 is a larger capacity storage device than the ROM 33, and stores data such as electric quantity data and setting values. The auxiliary memory device 35 is comprised of, for example, flash memory.

The DI circuit 37 receives, for example, a digital input signal that is a signal representing opening/closing information of the circuit breaker 6. In addition to the digital input signal from the circuit breaker 6, a digital input signal indicating opening/closing information of a disconnector (not shown) may be input to the DI circuit 37.

The display 38 is, for example, a liquid crystal display. The input interface 39 is typically various buttons and the like, and receives various operations from the user (eg, operator) of the protection relay device 100. The communication interface 40 mediates data transmission between the protection relay device 100 and the information processing device 200.

Additionally, at least part of the protection relay device 100 may be configured using circuits such as a Field Programmable Gate Array (FPGA) and an Application Specific Integrated Circuit (ASIC). Additionally, at least part of the protection relay device 100 may be configured with an analog circuit.

(Information processing device)

The information processing device 200 can be implemented as any type of device as long as it can perform the processing described later. For example, the information processing device 200 is a general-purpose computer that is mainly composed of a microcomputer and includes a CPU, memory (eg, ROM, RAM, hard disk), and a communication interface.

＜Handling Procedure＞

3 is a sequence diagram showing an example of a processing procedure of the information processing system according to Embodiment 1. Various processes of the information processing device 200 in the sequence shown in FIG. 3 are mainly executed by the CPU of the information processing device 200, and various processes of the protection relay device 100A are mainly performed by the protection relay device. It is executed by the arithmetic processing unit 30 of (100A).

Referring to FIG. 3, the information processing device 200 transmits format information (FM1) of the data group required for creating a report to the protection relay device 100A (step S10). Hereinafter, format information (FM1) will be described in detail.

Format information (FM1) has various formats representing data items required to create various reports. For example, the protection relay device 100A is assumed to include a relay element X1 (eg, a distance relay element) and a relay element X2 (eg, a current differential relay element). Additionally, format information (FM1) is said to include formats (fa1 to fc1).

The format (fa1) is information that describes the data items of the data group (Da1) required to create a report on the operation when the relay element (X1) operates. The format (fb1) is information that describes the data items of the data group (Db1) required to create a report on the operation when the relay element (X2) operates. The format fc1 is information that describes the data items of the data group Dc1 required to create a report on the operation when the relay element X1 and the relay element X2 operate.

The above data items are items with a high degree of relevance to relay operation, including relay operation date and time, LED (light-emitting diode) display information during relay operation, and pattern information of system accidents (e.g., failure status information). phase), distinction between ground faults and short circuits, distance to the fault point, etc.), system electricity quantity information during relay operation (e.g., effective values of current and voltage), and the type of relay element that was operated (e.g., distance relay elements, current differential relay elements), operation logs of the DI circuit and DO circuit before and after relay operation, and PCM (pulse code modulation) transmission information during relay operation (however, the protection relay device 100 transmits PCM (when executing) and the effective value data of the input electric quantity before and after the relay operation (i.e., the electric quantity input to the protection relay device 100A from the instrument current transformer 2 and the instrument transformer 4), and the corresponding input electric amount Instantaneous value data, operation results of each relay element synchronized with the instantaneous value data (e.g., data indicating operation (ON) and return (OFF)), and output results of the DI circuit synchronized with the instantaneous value data. , and includes output results to the DO circuit synchronized with the corresponding instantaneous value data. Additionally, the data item is a basic item and further includes relay type name, relay version information, relay installation location, relay setting value, and relay logic setting information.

Next, the protection relay device 100A detects an accident in the power system (step S12). That is, the relay element of the protection relay device 100A operates. Here, it is assumed that the relay element X1 operates.

When the relay element X1 operates, the protection relay device 100A generates a data group Da1 related to the operation of the relay element After identification, the data group (Da1) is non-volatilely stored (step S14). Specifically, the protection relay device 100A selects the corresponding format fa1 from the format information FM1 at the time of operation of the relay element X1, and confirms the format fa1 to generate the data group Da1. Identify.

Here, from the viewpoint of memory capacity and writing time, the protection relay device 100A does not non-volatilely store all acquired data (for example, store them in the auxiliary memory device 35), but relay operation date and time, relay LED display information during operation, system fault pattern information, system electric quantity information during relay operation, type of relay element in operation, operation log of DI circuit and DO circuit before and after relay operation, effective value of input electric quantity before and after relay operation data, instantaneous value data of the corresponding input electric quantity, operation results of relay elements synchronized with the corresponding instantaneous value data, output results of the DI circuit synchronized with the corresponding instantaneous value data, output results to the DO circuit synchronized with the corresponding instantaneous value data, etc. This is temporarily stored in RAM 34. Therefore, if the power of the protection relay device 100A is turned off, the data stored in the RAM 34 is lost. To prevent such data loss, the protection relay device 100A stores data temporarily stored in the RAM 34 among the data group Da1 in the auxiliary memory device 35. In addition, among the data group Da1, data such as the relay type name and relay version information are non-volatilely stored in the ROM 33 from the time of shipment of the protection relay device 100A.

The protection relay device 100A transmits operation information indicating that the relay element X1 has operated to the information processing device 200 (step S16). Additionally, the protection relay device 100A is configured to transmit the corresponding operation information to the protection relay device 100B.

Based on the reception of the operation information, the information processing device 200 requests the protection relay device 100A for data necessary to create a report (step S18). In addition, the user (e.g., system operator) of the information processing device 200 may detect an accident in the protection relay device 100A by some other method (e.g., an operation alarm of the circuit breaker 6, etc.) ( That is, when the relay operation is recognized, the information processing device 200 may be operated to execute a data request.

The protection relay device 100A transmits the data group Da1 to the information processing device 200 in accordance with the data request from the information processing device 200 (step S20).

The information processing device 200 creates an operation report regarding the operation of the relay element X1 based on the data group Da1 received from the protection relay device 100A (step S22) and outputs the operation report (step S22) Step S24). For example, the information processing device 200 may display an operation report on the display 38 or output the operation report to an external device through the communication interface 40. Additionally, the information processing device 200 may be configured to print out an operation report using a printer (not shown).

＜Operation Report＞

Figure 4 is a diagram showing an example of a report according to Embodiment 1. Referring to FIG. 4, the report 510 is said to be an operation report created when the distance relay element of the protection relay device 100A operates. The report 510 includes relay type name, relay version, logic setting information, relay setting value, oscillographic data, other relay acquisition information (e.g., information acquired from the protection relay device 100B), log data, data collection date and time, It includes relay operation date and time, installation location, protected object, other relay information, CT, VT rating, relay operation elements, LED indication, data at the time of accident, data before accident, etc. Oscillographic data includes instantaneous value data of the input electric quantity, operation results of relay elements synchronized with the corresponding instantaneous value data, output results of the DI circuit, and output results to the DO circuit.

Because the amount of data is large, each of the logic setting information, relay setting values, oscillographic data, and other relay data may be listed on separate pages, or a URL (Uniform Resource Locator) for accessing each data may be listed. do.

The log data regarding the DO circuit 36 and the DI circuit 37 describe the time when each event occurred. For example, on August 15, 2022, “data save startup” occurs at time ta, “relay operation” occurs at time tb, “trip signal output” occurs at time tc, and “trip signal output” occurs at time td. “Reception of circuit breaker open information” occurs. The circuit breaker open information is information indicating that the circuit breaker 6 is open.

The data collection time is the time at which data (eg, data group Da1) from the protection relay device 100A is collected by the information processing device 200. The installation location of the protection relay device (100A) is “X substation”, and the protection target is “transmission line (L)”. The “other relay” in the protection relay device 100A is the protection relay device 100B.

The instrument current transformer and instrument transformer applied to the protection relay device 100B are “CT1” and “VT1”, respectively. These are the same as the instrument current transformer and instrument transformer applied to the protection relay device 100A. Also, in this example, the a-phase ground fault distance relay element of the protection relay device 100A is operating, and information indicating a ground fault fault similar to the display of the LED provided on the front of the protection relay device 100A is displayed.

The data at the time of an accident is data of the electric quantity acquired by the protection relay device 100A during the operation of the relay element 3I0)) and voltage data (e.g., each phase voltage (Va, Vb, Vc) and zero phase voltage (3V0)). Data at the time of an accident further includes the distance to the accident point (e.g., 5 km) and the operation time from the occurrence of the accident until the relay element X1 operates (e.g., 40 ms). Data from a specified time before the accident (i.e., data before the accident) includes current data (e.g., each phase current (Ia1, Ib1, Ic1) and zero phase current (3I01)) and voltage data (e.g., each Includes phase voltage (Va1, Vb1, Vc1) and zero phase voltage (3V01).

＜Advantage＞

According to Embodiment 1, during relay operation of the protection relay device 100A, an operation report containing information necessary for operation analysis is automatically created. Therefore, an operation report regarding the relay operation of the protection relay device 100A can be output appropriately and simply. For example, even a low-skilled person can display an appropriate operation report or send it to another device. In particular, in the case of protection relay devices with multiple relay elements inside the relay, such as line protection, transformer protection, and busbar protection, it was difficult to write an operation report unless the person in charge had a sufficient understanding of relays controlled by complex logic. According to Embodiment 1, even a person in charge with low skill level can create an appropriate operation report.

Embodiment 2.

In Embodiment 1, a configuration in which the information processing device 200 creates an operation report based on information acquired from the protection relay device 100A has been described. In Embodiment 2, a configuration in which the information processing device 200 creates an operation report based on information acquired from the protection relay devices 100A and 100B will be described. The <system configuration> and <hardware configuration> of Embodiment 2 are the same as those of Embodiment 1.

＜Handling Procedure＞

Fig. 5 is a sequence diagram showing an example of a processing procedure of the information processing system according to Embodiment 2. Referring to FIG. 5, each process of steps S10 to S20 is the same as each process explained in FIG. 3, so detailed description thereof will not be repeated.

The information processing device 200 transmits format information (FM2) of the data group required for creating a report to the protection relay device 100B (step S30). The format information FM2 has a format fa2 indicating the data items of the data group to be transmitted to the information processing device 200 when operation information is received from the protection relay device 100A.

The above data items include the date and time of operation information reception, system electricity quantity information (e.g., effective values of current and voltage) at the time of operation information reception, operation logs of the DI circuit and DO circuit before and after receiving operation information, and before and after receiving operation information. RMS value data of the input electric quantity, instantaneous value data of the corresponding input electric quantity, operation results of the relay element synchronized with the instantaneous value data, output results of the DI circuit synchronized with the instantaneous value data, and corresponding instantaneous value data It includes output results to the DO circuit synchronized with . Additionally, data items are basic items and include relay type name, relay version information, relay installation location, relay setting value, relay logic setting information, etc.

Additionally, format information (FM2) may have the same format as format information (FM1). For example, assume that the protection relay device 100B includes relay elements Y1 and Y2. In this case, the format information FM2 may have a format that describes the data items of the data group necessary to create a report on the operation of the relay elements Y1 and Y2.

The protection relay device 100A transmits operation information indicating that the relay element (for example, the relay element X1) has operated to the protection relay device 100B (step S32). The protection relay device 100B must transmit to the information processing device 200 upon receipt of operation information indicating that the relay element X1 has operated, based on the format information FM2 received from the information processing device 200. The data group (Da2) to be processed is identified, and the data group (Da2) is non-volatilely stored (step S34). Specifically, the protection relay device 100B selects the corresponding format (fa2) from the format information (FM2) upon receiving the operation information of the relay element Identify Da2).

Based on the reception of operation information from the protection relay device 100A, the information processing device 200 requests the protection relay device 100B for data necessary to create a report (step S36). The protection relay device 100B transmits the data group Da2 to the information processing device 200 in accordance with the data request from the information processing device 200 (step S38).

The information processing device 200 relates to the operation of the relay element An operation report is created (step S40), and the created operation report is output (step S42).

＜Operation Report＞

Figure 6 is a diagram showing a report according to Embodiment 2. In the example of FIG. 6, the protection relay device 100B is said to be a current differential relay for protecting transformer A.

Referring to FIG. 6, a report 520 is created based on a data group (eg, data group Da2) received from the protection relay device 100B. Specifically, the information processing device 200 creates a report 510 shown in FIG. 4 based on the data group (e.g., data group Da1) received from the protection relay device 100A, and A report 520 shown in FIG. 6 is created based on the data group received from the device 100B. Accordingly, the information processing device 200 creates a combined report 510 and report 520 as an operation report.

The report 520 includes relay type name, relay version, logic setting information, relay setting value, oscillographic data, other relay acquisition information (e.g., information acquired from the protection relay device 100A), log data, data collection date and time, Includes operation information reception date and time, installation location, protected target, CT, VT rating, data upon receiving operation information, data before receiving operation information, etc.

Logic setting information, relay setting values, oscillographic data, and other relay data are the same as those described in FIG. 4.

The data collection date and time is the date and time when data (for example, data group Da2) from the protection relay device 100B was collected by the information processing device 200. The installation location of the protection relay device (100B) is “X substation”, and the protection target is “Transformer A”.

The data upon receiving operation information is data of electric quantity acquired by the protection relay device 100B upon reception of operation information, and is current data (e.g., each phase current (Ia, Ib, Ic) and zero phase current (3I0). )) and voltage data (e.g., each phase voltage (Va, Vb, Vc) and zero phase voltage (3V0)). Data older than the specified time before operation information reception (i.e., data before operation information reception) includes current data (e.g., each phase current (Ia1, Ib1, Ic1) and zero-phase current (3I01)) and voltage data (e.g., For example, it includes each phase voltage (Va1, Vb1, Vc1) and zero phase voltage (3V01).

As described above, the protection relay device 100B is configured to acquire the same amount of electricity as the amount of electricity that the protection relay device 100A acquires. Here, for example, the electricity quantity data described in “data upon accident” described in the report 510 in FIG. 4 and the electricity quantity data described in “data upon receiving operation information” described in the report 520 in FIG. 6 If the difference is within the input error range of the relay, and the difference between the electric quantity data described in “Data before accident” and the electric quantity data described in “Data before receiving operation information” is within the input error range of the relay, the input electric quantity data is normal. It can be judged that

In addition, when the relay element of the protection relay device 100B is the same as that of the protection relay device 100A, detailed relay operation analysis (e.g., For example, whether the relay operation is malfunctioning, etc.) can be performed.

＜Advantage＞

According to Embodiment 2, a report 520 based on data acquired from the protection relay device 100B is created. Therefore, useful information can be obtained for analyzing the operation of the relay element of the protection relay device 100A.

Embodiment 3.

In Embodiment 3, a configuration in which the information processing device 200 creates a detection report when a change in the amount of electricity in the power system is detected although the relay element of the protection relay device 100A does not operate will be described. The <system configuration> and <hardware configuration> of Embodiment 3 are the same as those of Embodiment 1.

＜Handling Procedure＞

Fig. 7 is a sequence diagram showing an example of a processing procedure of the information processing system according to Embodiment 3. In the following description, the relay element of the protection relay device 100A is assumed not to operate. Referring to FIG. 7, the information processing device 200 transmits format information (FM1) of the data group required for creating a report to the protection relay device 100A (step S10).

In Embodiment 3, the format information FM1 further includes a format fd1 in addition to the formats fa1 to fc1 described above. The format (fd1) is a data item of the data group (Dd1) required to create a report on the detection when the relay element of the protection relay device 100A is not operating, but a change in the amount of electricity in the power system is detected. This is information written in.

The information processing device 200 transmits format information (FM2) of the data group required for creating a report to the protection relay device 100B (step S30). In Embodiment 3, the format information FM2 is a format fb2 indicating the data items of the data group Db2 to be transmitted to the information processing device 200 when a detection signal is received from the protection relay device 100A. Have.

The protection relay device 100A detects a change in the amount of electricity in the power system (for example, the transmission line L) (step S50). Specifically, if the current electric quantity data (that is, current data or voltage data) is G(t), the electric quantity data 180° ago becomes G(t-180°). When no accident occurs in the power system, the alternating voltage and alternating current are constant, so the added values of G(t) and G(t-180°) are zero. On the other hand, if an accident occurs in the power system, the additional value is not zero.

Accordingly, the protection relay device 100A determines that a change in electric quantity has been detected when the following conditions are satisfied: |G(t)+G(t-180°)|>ε. Specifically, the protection relay device 100A may determine that a change in the amount of electricity has been detected when the above condition is satisfied for either current data or voltage data, and the above condition is satisfied for both current data and voltage data. In this case, it may be determined that a change in electric quantity has been detected. Additionally, the threshold ε is set to be more sensitive than the sensitivity of the relay operation setting value. As a result, even when the fault current is small and the relay does not operate, changes in the amount of electricity may be detected. On the other hand, when the relay operates, changes in the amount of electricity are also detected.

Next, the protection relay device 100A, based on the format information FM1, sets the data group Dd1 to be transmitted to the information processing device 200 when the relay element is inoperative and a change in electric quantity is detected. ) is identified, and the data group Dd1 is non-volatilely stored (step S52). The protection relay device 100A identifies the data group Dd1 by selecting the format fd1 from the format information FM1 and checking the format fd1.

The protection relay device 100A transmits a detection signal indicating that a change in the amount of electricity has been detected to the information processing device 200 (step S54). That is, when the protection relay device 100A detects that the relay element is inoperable and that the amount of electricity has changed beyond the specified value, it transmits the corresponding detection signal to the information processing device 200.

Based on reception of the detection signal, the information processing device 200 requests the protection relay device 100A for data necessary to create a report (step S56). Additionally, when the user (e.g., system operator) of the information processing device 200 recognizes that the protection relay device 100A has detected a change in the amount of electricity by some other method, the information processing device 200 You can execute a data request by manipulating . The protection relay device 100A transmits the data group Dd1 to the information processing device 200 in accordance with the data request from the information processing device 200 (step S58).

Meanwhile, the protection relay device 100A transmits the corresponding detection signal to the protection relay device 100B (step S60). Based on the format information FM2, the protection relay device 100B identifies the data group Db2 to be transmitted to the information processing device 200 upon receiving the detection signal, and converts the data group Db2 into a non-volatile form. Remember (step S62). Specifically, the protection relay device 100B selects the format fb2 from the format information FM2 and identifies the data group Db2 by checking the format fb2. Based on reception of the detection signal, the information processing device 200 requests the protection relay device 100B for data necessary to create a report (step S64). The protection relay device 100A transmits the data group Db2 to the information processing device 200 in accordance with the data request from the information processing device 200 (step S66).

Next, the information processing device 200 relates to detection of a change in the amount of electricity based on the data group Dd1 received from the protection relay device 100A and the data group Db2 received from the protection relay device 100B. A detection report is created (step S68), and the created detection report is output (step S70).

＜Detection Report＞

The information processing device 200 creates a report K1 based on the data group Dd1 received from the protection relay device 100A, and reports K1 based on the data group Db2 received from the protection relay device 100B. Write (K2). Then, the information processing device 200 creates a detection report by combining the report K1 and the report K2.

The report (K1) includes relay type name, relay version, logic setting information, relay setting value, oscillographic data, other relay data, log data, data collection time, detection date and time, installation location, protected target, CT, VT rating, and time of detection. Includes data, pre-detection data, etc. The report (K2) includes relay type name, relay version, logic setting information, relay setting value, oscillographic data, other relay data, log data, data collection time, detection signal reception date and time, installation location, protected object, CT, VT rating, It includes data upon receiving the detection signal, data before receiving the detection signal, etc.

＜Advantage＞

According to Embodiment 3, when a change in the amount of electricity is detected when the relay is inoperable in the protection relay device 100A, the data is generated based on the data group from the protection relay device 100A and the data group from the protection relay device 100B. Thus, a detection report is automatically created. This detection report can be helpful in analyzing the cause of whether or not the relay element of the protection relay device 100A is malfunctioning.

Other embodiments.

(1) In the above-described embodiment, a configuration for transmitting format information in advance from the information processing device 200 to the protection relay devices 100A and 100B has been described, but the configuration is not limited to this. For example, the information processing device 200 may be configured not to transmit format information to the protection relay devices 100A and 100B.

When the relay element of the protection relay device 100A operates (for example, when operation information indicating that the relay element Thus, the data group (Da1) related to the operation of the relay element (X1) is identified. The information processing device 200 requests the data group Da1 from the protection relay device 100A and receives the data group Da1 from the protection relay device 100A. The information processing device 200 creates an operation report regarding the operation of the relay element X1 based on the received data group Da1 and outputs the operation report.

In this case, in order to prevent the loss of data temporarily stored in the RAM 34 etc. by turning off the power of the protection relay device 100A, the protection relay device 100A non-volatilely stores all acquired data. It is desirable.

(2) In the above-described embodiment, the information processing device 200 acquires a data group (e.g., a data group ( Based on the information contained in Da1)) (e.g., instantaneous value data of the input electric quantity before and after relay operation and output results of the DI circuit synchronized with the instantaneous value data), the relay element of the protection relay device 100A It may be a configuration that executes the same relay operation as . In this case, the information processing device 200 determines whether the operation result of the relay element and the result of the logic sequence operation by the corresponding relay operation match the operation result of the relay element and the result of the logic sequence operation by the protection relay device 100A. Decide whether or not For example, it is assumed that an application capable of executing the same relay operation as the relay element of the protection relay device 100A is pre-installed in the information processing device 200.

For ease of explanation, it is assumed that the relay element X1 of the protection relay device 100A operates as described in FIG. 3. Hereinafter, the processing procedure of the information processing device 200 will be described according to the flow of FIG. 3. First, the information processing device 200 receives the data group Da1 transmitted from the protection relay device 100A in step S20 of FIG. 3.

Next, the information processing device 200 operates the protection relay device ( Executes the same relay operation as the relay element (X1) of 100A). Additionally, depending on the type of relay element, the output result of the DI circuit may be unnecessary. Additionally, the relay operation is assumed to include relay element operation and logic sequence operation.

The information processing device 200 is based on the result of the executed relay operation (hereinafter also referred to as “relay operation result Za”), the instantaneous value data of the corresponding input electric quantity, and the output result of the DI circuit synchronized with the instantaneous value data. It is determined whether the relay operation result data (hereinafter also referred to as “relay operation result Zb”) of the relay element X1 is the same. The relay operation result Zb included in the data group Da1 is a relay operation result obtained by the relay element result of element operation and result of logic sequence operation).

For example, the information processing device 200 compares whether the result of the relay element operation (i.e., the operation result of the relay element) and the result of the logic sequence operation match between the relay operation results Za and Zb, etc. , it is determined whether the relay operation result Za and the relay operation result Zb are the same. The information processing device 200 determines that the relay operation result Za and the relay operation result Zb are the same when the relay element operation result and the logic sequence operation result match between the relay operation results Za and Zb.

Then, in step S22 of FIG. 3, the information processing device 200 creates an operation report regarding the operation of the relay element X1 based on the data group Da1 received from the protection relay device 100A. In addition to the contents described in the operation report as shown in FIG. 4, the generated operation report further includes a judgment result of whether or not the relay operation result Za and the relay operation result Zb are the same. Additionally, if these are not the same, the content of the difference between the relay operation result Za and the relay operation result Zb may be described in the operation report.

By checking the operation report including the corresponding judgment result, the user (for example, system operator) of the information processing device 200 can determine whether correct calculations are being made in the calculation processing unit 30 of the protection relay device 100A. You can judge whether it is or not. For example, when the relay operation result Za and the relay operation result Zb do not match, it is possible to recognize the possibility that an error has occurred in the operation processing unit 30.

(3) The configuration exemplified as the above-described embodiment is an example of the configuration of the present disclosure, and can also be combined with other known techniques, and may be modified, such as omitting some parts, within the range that does not deviate from the gist of the present disclosure. It is also possible to configure it. In addition, in the above-described embodiment, the processing and configuration described in other embodiments may be appropriately adopted and implemented.

Hereinafter, various aspects of the present disclosure are summarized and described as appendixes.

(Appendix 1)

A first protection relay device for protecting the power system using the amount of electricity obtained from the power system, and an information processing device that communicates with the first protection relay device, wherein the first protection relay device is the information processing device. Receive first format information from, and when the first relay element of the first protection relay device operates, identify a first data group related to the operation of the first relay element based on the first format information , in accordance with a request from the information processing device, transmit the first data group to the information processing device, and the information processing device transmits the first data group based on the first data group received from the first protection relay device, 1 An information processing system for generating a first report on the operation of a relay element and outputting the first report.

(Appendix 2)

The information processing system according to Appendix 1, wherein the first protection relay device non-volatilely stores the identified first data group.

(Appendix 3)

The information processing system according to Supplementary Note 1 or Supplementary Note 2, wherein the first protection relay device transmits operation information indicating that the first relay element has operated to the information processing device.

(Appendix 4)

The first data group includes information indicating the first relay element, an operation date and time of the first relay element, and data of the electric quantity acquired by the first protection relay device when the first relay element is operated. The information processing system described in any one of Appendices 1 to 3, including.

(Appendix 5)

further comprising a second protection relay device in communication with the information processing device, wherein the second protection relay device is configured to acquire the same amount of electricity as the amount of electricity that the first protection relay device acquires from the power system, When the first relay element operates, the first protection relay device transmits operation information indicating that the first relay element has operated to the second protection relay device, and the second protection relay device processes the information. Receiving second format information from a device, and when receiving the operation information, identify a second data group to be transmitted to the information processing device based on the second format information, upon receiving the operation information, Transmit the second data group to the information processing device in accordance with a request from the information processing device, and the information processing device transmits the first data group received from the first protection relay device and the second protection relay device. The information processing system according to any one of Appendices 1 to 4, which creates the first report based on the second data group received from.

(Appendix 6)

The information processing system according to Appendix 5, wherein the second protection relay device non-volatilely stores the identified second data group.

(Appendix 7)

The second data group includes the reception date and time when the second protection relay device received the operation information from the first protection relay device, and the power acquired by the second protection relay device when receiving the operation information. The information processing system described in Appendix 5 or Appendix 6, including data on the amount of electricity in the system.

(Appendix 8)

further comprising a second protection relay device in communication with the information processing device, wherein the second protection relay device is configured to acquire the same amount of electricity as the amount of electricity that the first protection relay device acquires from the power system, When the first protection relay device detects that the first relay element is inoperative and the amount of electricity in the power system has changed more than a specified value, it transmits a detection signal indicating the detection to the second protection relay device, Based on the first format information, a third data group to be transmitted to the information processing device is identified upon detection of a change in the electric quantity, and the third data group is processed as the information according to a request from the information processing device. transmitting to the device, and the second protection relay device receives second format information from the information processing device, and when receiving the detection signal, based on the second format information, the second protection relay device receives the detection signal. Identifying a fourth data group to be transmitted to the information processing device, transmitting the fourth data group to the information processing device in accordance with a request from the information processing device, and the information processing device transmitting the fourth data group to the information processing device from the first protection relay device. Any one of Appendices 1 to 7, which creates a second report on detection of a change in the electric quantity based on the received third data group and the fourth data group received from the second protection relay device. The information processing system described in .

(Appendix 9)

The first data group includes data on an electric quantity acquired by the first protection relay device before and after the operation of the first relay element, and a relay operation result of the first relay element based on the data on the electric quantity, , the information processing device, based on the data of the electric quantity, executes the same relay operation as the first relay element, and determines whether the result of the executed relay operation and the relay operation result of the first relay element are the same. The information processing system described in any one of Appendices 1 to 8, wherein the first report includes the results of the judgment.

(Appendix 10)

A first protection relay device for protecting the power system using the amount of electricity obtained from the power system, and an information processing device that communicates with the first protection relay device, wherein the information processing device is configured to communicate with the first protection relay device. When the first relay element operates, identify the first data group related to the operation of the first relay element based on the format information, and request the first data group from the first protection relay device. , An information processing system that creates a first report on the operation of the first relay element based on the first data group received from the first protection relay device and outputs the first report.

Although embodiments of the present invention have been described, it should be understood that the presently disclosed embodiments are illustrative in all respects and are not restrictive. The scope of the present invention is indicated by the claims, and it is intended to include all changes within the meaning and scope equivalent to the claims.

Claims (10)

A first protection relay device for protecting the power system using the amount of electricity obtained from the power system,
an information processing device communicating with the first protection relay device;
The first protection relay device is
Receive first format information from the information processing device,
When the first relay element of the first protection relay device operates, identify a first data group related to the operation of the first relay element based on the first format information,
transmitting the first data group to the information processing device in accordance with a request from the information processing device;
The information processing device is
Based on the first data group received from the first protection relay device, create a first report on the operation of the first relay element,
An information processing system that outputs the first report. In claim 1,
The information processing system wherein the first protection relay device non-volatilely stores the identified first data group. In claim 1 or claim 2,
The information processing system wherein the first protection relay device transmits operation information indicating that the first relay element has operated to the information processing device. In claim 1 or claim 2,
The first data group includes information indicating the first relay element, an operation date and time of the first relay element, and data of the electric quantity acquired by the first protection relay device when the first relay element is operated. Including, information processing systems. In claim 1 or claim 2,
Further comprising a second protection relay device in communication with the information processing device,
The second protection relay device is configured to acquire the same amount of electricity as the amount of electricity that the first protection relay device acquires from the power system,
The first protection relay device is
When the first relay element operates, transmitting operation information indicating that the first relay element operates to the second protection relay device,
The second protection relay device is
Receive second format information from the information processing device,
When receiving the operation information, identify a second data group to be transmitted to the information processing device upon receiving the operation information, based on the second format information;
transmitting the second data group to the information processing device in accordance with a request from the information processing device;
The information processing device is
An information processing system that creates the first report based on the first data group received from the first protection relay device and the second data group received from the second protection relay device. In claim 5,
The information processing system wherein the second protection relay device non-volatilely stores the identified second data group. In claim 5,
The second data group includes the reception date and time when the second protection relay device received the operation information from the first protection relay device, and the information acquired by the second protection relay device at the time of receiving the operation information. An information processing system containing data on the amount of electricity in a power system. In claim 1 or claim 2,
further comprising a second protection relay device in communication with the information processing device,
The second protection relay device is configured to acquire the same amount of electricity as the amount of electricity that the first protection relay device acquires from the power system,
The first protection relay device is
When it is detected that the first relay element is inoperative and the amount of electricity in the power system has changed more than a specified value, a detection signal indicating the detection is transmitted to the second protection relay device,
Based on the first format information, identify a third data group to be transmitted to the information processing device upon detection of a change in the electric quantity,
transmitting the third data group to the information processing device in accordance with a request from the information processing device;
The second protection relay device is
Receive second format information from the information processing device,
When receiving the detection signal, identify a fourth data group to be transmitted to the information processing device upon reception of the detection signal, based on the second format information;
transmitting the fourth data group to the information processing device in accordance with a request from the information processing device;
The information processing device is
Information that creates a second report on detection of a change in the amount of electricity based on the third data group received from the first protection relay device and the fourth data group received from the second protection relay device. processing system. In claim 1 or claim 2,
The first data group includes data on the electric quantity acquired by the first protection relay device before and after the operation of the first relay element, and a relay operation result of the first relay element based on the data on the electric quantity. do,
The information processing device is
Based on the data of the electric quantity, perform the same relay operation as the first relay element,
Determine whether the result of the executed relay operation and the relay operation result of the first relay element are the same,
and wherein the first report contains the results of that judgment. A first protection relay device for protecting the power system using the amount of electricity obtained from the power system,
An information processing device communicating with the first protection relay device,
The information processing device is
When the first relay element of the first protection relay device operates, identify a first data group related to the operation of the first relay element based on format information,
Requesting the first data group from the first protection relay device,
Based on the first data group received from the first protection relay device, create a first report on the operation of the first relay element,
An information processing system that outputs the first report.

Images