CN111381545B - Protection measurement and control intelligent terminal based on edge calculation - Google Patents
Protection measurement and control intelligent terminal based on edge calculation Download PDFInfo
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- CN111381545B CN111381545B CN202010259566.1A CN202010259566A CN111381545B CN 111381545 B CN111381545 B CN 111381545B CN 202010259566 A CN202010259566 A CN 202010259566A CN 111381545 B CN111381545 B CN 111381545B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
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Abstract
A protection, measurement and control intelligent terminal based on edge calculation is arranged in an interval of an electric power system and comprises a first CPU, a second CPU, a serial port, an industrial Ethernet interface, a ZIgBee/LoRa module interface, an Internet of things network card and a video interface, wherein the first CPU is a protection and control CPU, the second CPU is used for controlling edge calculation, communication, monitoring and display, the first CPU and the second CPU are connected through a high-speed bus, a software platform in the protection, measurement and control intelligent terminal based on edge calculation adopts a linux EdgeX Foundation-based open edge calculation platform, the software platform communicates with the protection, measurement and control intelligent terminal based on edge calculation through an Internet of things protocol and an electric industry proprietary protocol, a plurality of containers are divided in the protection, measurement and control intelligent terminal based on edge calculation, each container is used for realizing a specific application function, and has an independent operation and analysis function, and summarizing data sent by different containers at the cloud end so as to analyze the running state of the protection measurement and control intelligent terminal based on edge calculation.
Description
Technical Field
The invention relates to the field of intelligent power grid protection and automation, in particular to a protection measurement and control intelligent terminal based on edge calculation.
Background
At present, the domestic protection monitoring device mainly realizes the protection monitoring of interval equipment, networks the protection monitoring equipment and realizes the functions of remote control, remote regulation, remote signaling, remote measurement and the like. With the needs of the technology of internet of things, the computer technology, the communication technology, the technical development of the power industry and the actual operation of an electrical system, sensors related to the high-voltage electrical equipment intervals are required to be accessed on the basis of the high-voltage electrical equipment intervals, the summary and intelligent analysis of the high-voltage switch equipment and the electrical system operation data are realized, the operation state of the high-voltage electrical system is comprehensively analyzed, and the data are sent to the cloud end through the 2G/4G/5G communication technology. At present, the domestic protection monitoring device does not perform partition isolation according to different thinning functions, and does not integrate the functions of artificial intelligent analysis such as high-voltage switch mechanical characteristic analysis, switching-on and switching-off current analysis, partial discharge analysis and the like; even after the protection action is not carried out, the reason after the protection action is analyzed by using the protection action data, and the characteristics of the primary equipment are not combined with other data for analysis.
Disclosure of Invention
The invention provides a protection measurement and control intelligent terminal based on edge calculation, which is used for solving at least one problem in the prior art.
In order to achieve the above object, the present invention provides an edge calculation-based protection measurement and control intelligent terminal, which is disposed inside an interval of an electric power system and is used for protecting and monitoring high-voltage electrical equipment inside the interval, and the edge calculation-based protection measurement and control intelligent terminal is characterized by comprising: first CPU, second CPU, serial ports, industry ethernet interface, ZIgBee/LoRa module interface, thing networking card and video interface, wherein:
the first CPU is a protection monitoring CPU, the second CPU is used for controlling edge calculation, communication, monitoring and display, the first CPU and the second CPU are connected through a high-speed bus,
the voltage sensor, the position sensor and the current sensor are connected with the first CPU through serial ports,
the partial discharge sensor, the switch mechanical characteristic sensor and the contact temperature sensor are connected with the second CPU through serial ports,
the intelligent protection, measurement and control terminal based on edge calculation is connected with a monitoring terminal,
the intelligent protection, measurement and control terminal based on edge calculation is wirelessly connected with the APP in the cloud or the mobile device through the Internet of things card,
the video interface is connected with the video acquisition equipment,
the software platform in the intelligent terminal based on edge computing adopts an open edge computing platform based on linux EdgeX foundation, the software platform communicates with the intelligent terminal based on edge computing through an internet of things protocol and an electric industry proprietary protocol,
the protection measurement and control intelligent terminal based on the edge computing is internally divided with a plurality of containers, each container is allocated with independent computing resources and data storage space, the computing resources comprise memory resources, CPU resources and network resources, the computing resources and the data storage space are not shared among the containers, each container is respectively used for one application program to use, each container has independent operation and analysis functions, each application program is preset with an access authority, data sent by different containers are collected at the cloud end to analyze the operation state of the protection measurement and control intelligent terminal based on the edge computing,
the application programs comprise a partial discharge analysis application program, a high-voltage switch mechanism characteristic application program, a protection monitoring data analysis application program and a comprehensive analysis application program, wherein:
the partial discharge analysis application program is used for monitoring the discharge of the high-voltage switch primary equipment, including monitoring ultrasonic signals and ultrahigh-frequency electromagnetic wave signals generated by discharge excitation,
the high-voltage switch mechanism characteristic application program is used for monitoring the mechanical characteristic, the opening and closing current and the motor energy storage current of the high-voltage switch mechanism;
the protection monitoring data analysis application program is used for protecting electrical elements and lines, and comprises transformer differential protection, transformer in-zone fault protection and line quick-break protection, wherein the transformer differential protection is triggered by turn-to-turn short circuit or other short circuits of a transformer, the line quick-break protection is triggered by inter-phase short circuit or grounding short circuit,
the comprehensive analysis application program is used for receiving data sent by the partial discharge analysis application program, the high-voltage switch mechanism characteristic application program and the protection monitoring data analysis application program, comprehensively judging and analyzing the data, monitoring the electrical performance of the protection measurement and control intelligent terminal based on edge calculation and possible accidents of the protection measurement and control intelligent terminal, and further connecting the comprehensive analysis application program with the APP in the cloud or the mobile device.
In an embodiment of the invention, the internet of things card is a 2G/3G/4G/5G internet of things card.
In one embodiment of the invention, one of the sensors is associated with each container.
In an embodiment of the invention, the protection measurement and control intelligent terminal based on edge calculation is connected with a sensor of each piece of monitoring high-voltage electrical equipment in the interval.
The edge computing-based protection measurement and control intelligent terminal organically combines an edge computing technology, an Internet of things technology, an information technology and an electrical industry technology, adopts a multi-communication and multi-interface mode, takes high-voltage electrical equipment as an interval object, solves the problem of data acquisition of all sensors facing the interval equipment, can protect and monitor all equipment in a power plant transformation and distribution station positioned in an interval, can acquire and analyze data sent by a high-voltage switch equipment sensor, can perform edge computing, and realizes data sharing. The data collection and analysis of the equipment at different intervals are realized by analyzing all collected data in combination with a power system protection and control technology, a partial discharge technology and the like and summarizing the data in each interval to the cloud. The invention is suitable for power plants and power transformation and distribution stations, and can realize protection, control, calculation and intelligent analysis of electrical equipment. The container technology adopted by the invention can effectively isolate the computing resources and the data, thereby ensuring the reliability and the quality of service. All the equipment protection and monitoring oriented lightweight algorithms are completed by the protection measurement and control intelligent terminal based on edge calculation, and the requirement of real-time performance is met. After the data are sent to the cloud, the data at different intervals can be analyzed in a centralized mode, and big data analysis and cloud-side coordination control are achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a protection measurement and control intelligent terminal based on edge computing according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating cooperation between a container and a cloud or a mobile device in an embodiment.
Description of reference numerals: 1-a first CPU; 2-a second CPU; 3-serial port; 4-industrial ethernet interface; 5-ZIgBee/LoRa module interface; 6-Internet of things card; 7-a video interface; 11-a voltage sensor; 12-a position sensor; 13-a current sensor; 14-partial discharge sensors; 15-a switch mechanical property sensor; 16-contact temperature sensor; t-protection measurement and control intelligent terminal based on edge calculation; m-monitoring terminal; v-video capture equipment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Fig. 1 is a schematic diagram of a protection, measurement and control intelligent terminal based on edge calculation according to an embodiment of the present invention, and as shown in fig. 1, the protection, measurement and control intelligent terminal based on edge calculation provided by the present invention is disposed inside an interval of an electric power system, and is configured to perform protection and monitoring on high-voltage electrical equipment inside the interval, and includes: first CPU1, second CPU2, serial port 3, industrial Ethernet interface 4, ZIgBee/LoRa module interface 5, thing networking card 6 and video interface 7, wherein:
the first CPU1 is a protection monitoring CPU, the second CPU2 is used for controlling edge calculation, communication, monitoring and display, the first CPU and the second CPU are connected through a high-speed bus,
the voltage sensor 11, the position sensor 12 and the current sensor 13 are connected with the first CPU1 through the serial port 3,
the partial discharge sensor 14, the switch mechanical characteristic sensor 15 and the contact temperature sensor 16 are connected with a second CPU12 through a serial port 3,
the edge calculation-based protection measurement and control intelligent terminal is connected with a monitoring terminal M,
the protection measurement and control intelligent terminal T based on edge calculation is wirelessly connected with the APP in the cloud or the mobile device through the Internet of things card 6, and the industrial Ethernet interface 4 is used for realizing interconnection between the Internet of things card 6 and the outside.
The video interface 7 is connected to a video capture device V,
the software platform in the intelligent terminal T based on edge calculation adopts an open edge calculation platform based on linux EdgeX Foundation, the software platform communicates with the intelligent terminal based on edge calculation through an Internet of things protocol and an electric industry proprietary protocol,
the protection measurement and control intelligent terminal T based on the edge computing is internally divided with a plurality of containers, each container is allocated with independent computing resources and data storage space, the computing resources comprise memory resources, CPU resources and network resources, the computing resources and the data storage space are not shared among the containers, each container is respectively used for one application program to use, each container has independent operation and analysis functions, each application program is preset with an access authority, data sent by different containers are collected at the cloud end to analyze the operation state of the protection measurement and control intelligent terminal based on the edge computing,
the application programs comprise a partial discharge analysis application program, a high-voltage switch mechanism characteristic application program, a protection monitoring data analysis application program and a comprehensive analysis application program, wherein:
the partial discharge analysis application program is used for monitoring the discharge of the high-voltage switch primary equipment, including monitoring ultrasonic signals and ultrahigh-frequency electromagnetic wave signals generated by discharge excitation,
the high-voltage switch mechanism characteristic application program is used for monitoring the mechanical characteristic, the opening and closing current and the motor energy storage current of the high-voltage switch mechanism;
the protection monitoring data analysis application program is used for protecting electrical elements and lines, and comprises transformer differential protection, transformer in-zone fault protection and line quick-break protection, wherein the transformer differential protection is triggered by turn-to-turn short circuit or other short circuits of a transformer, the line quick-break protection is triggered by inter-phase short circuit or grounding short circuit,
the comprehensive analysis application program is used for receiving data sent by the partial discharge analysis application program, the high-voltage switch mechanism characteristic application program and the protection monitoring data analysis application program, comprehensively judging and analyzing the data, monitoring the electrical performance of the protection measurement and control intelligent terminal based on edge calculation and possible accidents of the protection measurement and control intelligent terminal, and further connecting the comprehensive analysis application program with the APP in the cloud or the mobile device.
In the invention, each interval is provided with a protection measurement and control intelligent terminal based on edge calculation, so that the total number of the protection measurement and control intelligent terminals based on edge calculation can be set according to the number of actual implementation time intervals, the number of containers is divided in each interval according to actual needs, fig. 2 is a schematic diagram of cooperative work of the containers and a cloud terminal or mobile equipment in an embodiment, as shown in fig. 2, the 1 st, 2 nd and N th containers respectively correspond to a partial discharge sensor, a mechanism characteristic sensor and a current-voltage sensor in the interval, one container is respectively allocated for the sensors to carry out edge calculation, the results of the edge calculation of the 1 st to N th containers are further summarized to the (N + 1) th container, and then the results are uploaded to the cloud terminal or APP, and data interconnection and intercommunication can also be carried out among the intervals.
In this embodiment, the internet of things card 6 is a 2G/3G/4G/5G internet of things card, each container corresponds to one of the sensors, the number of the containers can be set according to the number of the sensors to be monitored, and the protection measurement and control intelligent terminal T based on edge calculation is connected with the sensor of each monitoring high-voltage electrical equipment in the interval.
The invention adopts a technical scheme of a plurality of CPUs, the embodiment takes two CPUs as an example for explanation, in other embodiments, the number of the CPUs can be expanded according to the number of actually monitored high-voltage electrical equipment and the number of sensors and the like so as to meet the use requirements on resources, each CPU is respectively provided with a determined processing function to ensure the independence of the functions of the CPUs, and the CPUs are interconnected and intercommunicated through a high-speed bus to realize data interaction. In other embodiments, other types of interfaces can be expanded according to actual requirements to realize monitoring of more devices, and data sensed by the monitored devices, sensors and the like are gathered and then further sent to a cloud or a mobile device, so that further processing and analysis are facilitated.
The container in the invention embodies a container isolation technology (container technology for short), fully applies the characteristics of the container technology, the container technology is an important research technology for supporting the robust development of edge calculation, and the edge equipment needs to ensure the reliability and the quality of service through an effective isolation technology. The container isolation technology needs to consider two aspects, one is the isolation of computing resources, which limits the total amount of resources used by applications, and each application can only use allocated memory, Central Processing Unit (CPU) and network resources. The computing resource isolation ensures that each application program cannot generate interference due to resource boundary crossing, and is convenient for the system to count the resource use condition of the application program and control the application state, such as pause, recovery, interruption and the like. The second is the isolation of data, i.e. different applications should have different access rights.
The Docker container technology in edge computing is to guarantee resource isolation. Containerization is a technology for realizing fine-grained resource control and isolation in a container by packaging an application program, and can realize lightweight programming; the container isolation technology enables the application program to have the characteristics of light weight, flexibility and high starting speed, and the system flexibility is easy to realize.
The edge computing-based protection measurement and control intelligent terminal organically combines an edge computing technology, an Internet of things technology, an information technology and an electrical industry technology, adopts a multi-communication and multi-interface mode, takes high-voltage electrical equipment as an interval object, solves the problem of data acquisition of all sensors facing the interval equipment, can protect and monitor all equipment in a power plant transformation and distribution station positioned in an interval, can acquire and analyze data sent by a high-voltage switch equipment sensor, can perform edge computing, and realizes data sharing. The data collection and analysis of the equipment at different intervals are realized by analyzing all collected data in combination with a power system protection and control technology, a partial discharge technology and the like and summarizing the data in each interval to the cloud. The invention is suitable for power plants and power transformation and distribution stations, and can realize protection, control, calculation and intelligent analysis of electrical equipment. The container technology adopted by the invention can effectively isolate the computing resources and the data, thereby ensuring the reliability and the quality of service. All the equipment protection and monitoring oriented lightweight algorithms are completed by the protection measurement and control intelligent terminal based on edge calculation, and the requirement of real-time performance is met. After the data are sent to the cloud, the data at different intervals can be analyzed in a centralized mode, and big data analysis and cloud-side coordination control are achieved.
Those of ordinary skill in the art will understand that: the figures are merely schematic representations of one embodiment, and the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
Those of ordinary skill in the art will understand that: modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be located in one or more devices different from the embodiments with corresponding changes. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (3)
1. The utility model provides a protection observes and controls intelligent terminal based on edge calculation, it locates inside an interval of electric power system for carry out the protection monitoring to the inside high-voltage electric equipment in interval, a serial communication port, include: first CPU, second CPU, serial ports, industry ethernet interface, ZIgBee/LoRa module interface, thing networking card and video interface, wherein:
the first CPU is a protection monitoring CPU, the second CPU is used for controlling edge calculation, communication, monitoring and display, the first CPU and the second CPU are connected through a high-speed bus, a voltage sensor, a position sensor and a current sensor are connected with the first CPU through serial ports, a partial discharge sensor, a switch mechanical characteristic sensor and a contact temperature sensor are connected with the second CPU through serial ports, a protection measurement and control intelligent terminal based on edge calculation is connected with a monitoring terminal,
the intelligent protection, measurement and control terminal based on edge calculation is wirelessly connected with the cloud or APP in the mobile equipment through an Internet of things card, a video interface is connected with video acquisition equipment,
the software platform in the intelligent terminal based on edge computing adopts an open edge computing platform based on linux EdgeX foundation, the software platform communicates with the intelligent terminal based on edge computing through an internet of things protocol and an electric industry proprietary protocol,
a plurality of containers are divided in the edge computing-based protection measurement and control intelligent terminal, each container is allocated with independent computing resources and data storage space, the computing resources comprise memory resources, CPU resources and network resources, the computing resources and the data storage space are not shared among the containers, each container is respectively used for one application program, each container has independent operation and analysis functions,
each application program presets an access right, data sent by different containers are collected at the cloud end so as to analyze the running state of the protection measurement and control intelligent terminal based on edge calculation,
the application programs comprise a partial discharge analysis application program, a high-voltage switch mechanism characteristic application program, a protection monitoring data analysis application program and a comprehensive analysis application program, wherein:
the partial discharge analysis application program is used for monitoring the discharge of the high-voltage switch primary equipment, including monitoring ultrasonic signals and ultrahigh-frequency electromagnetic wave signals generated by discharge excitation,
the high-voltage switch mechanism characteristic application program is used for monitoring the mechanical characteristic, the opening and closing current and the motor energy storage current of the high-voltage switch mechanism;
the protection monitoring data analysis application program is used for protecting electrical elements and lines, and comprises transformer differential protection, transformer in-zone fault protection and line quick-break protection, wherein the transformer differential protection is triggered by turn-to-turn short circuit or other short circuits of a transformer, the line quick-break protection is triggered by inter-phase short circuit or grounding short circuit,
the comprehensive analysis application program is used for receiving data sent by the partial discharge analysis application program, the high-voltage switch mechanism characteristic application program and the protection monitoring data analysis application program, comprehensively judging and analyzing the data, monitoring the electrical performance of the protection measurement and control intelligent terminal based on edge calculation and possible accidents of the protection measurement and control intelligent terminal, and further connecting the comprehensive analysis application program with the APP in the cloud or the mobile device.
2. The edge computing-based protection, measurement and control intelligent terminal according to claim 1, wherein the internet of things card is a 2G/3G/4G/5G internet of things card.
3. The intelligent edge-computing-based protection, measurement and control terminal according to claim 1, wherein the intelligent edge-computing-based protection, measurement and control terminal is connected to a sensor of each monitoring high-voltage electrical equipment in an interval.
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| CN112087423A (en) * | 2020-07-29 | 2020-12-15 | 深圳市国电科技通信有限公司 | Method, device and system for cloud-side cooperative management of terminal equipment |
| CN112290683A (en) * | 2020-11-06 | 2021-01-29 | 安徽电科恒钛智能科技有限公司 | Edge calculation-based distribution substation monitoring system |
| CN113316110A (en) * | 2020-11-09 | 2021-08-27 | 众源科技(广东)股份有限公司 | Intelligent Internet of things edge computing gateway |
| CN113253149A (en) * | 2021-05-17 | 2021-08-13 | 西安西电开关电气有限公司 | Monitoring device of high-voltage current limiter supporting edge calculation |
| CN116633025B (en) * | 2023-07-24 | 2023-09-26 | 国网湖北省电力有限公司武汉市东湖新技术开发区供电公司 | Visual wisdom limit platform of electric power operation monitoring |
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