CN110908962A - SCD model rapid data processing method for intelligent substation - Google Patents
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Abstract
The invention discloses a rapid data processing method for an intelligent substation SCD model, which is characterized in that an intelligent substation configuration file SCD is analyzed through a VTD, all analyzed contents are stored in a temporary memory database, and the analyzed contents are put into different table structures according to analyzed element types to serve as basic data for analysis. The invention adopts an advanced information management processing method, generates a large amount of information related to the intelligent substation aiming at the networked and informationized result, and improves the operation, maintenance and overhaul efficiency of the intelligent station and the intuition of maintenance and overhaul by displaying the information association logic through high-visualization graphs, thereby greatly improving the operation and maintenance management level of the intelligent station.
Description
Technical Field
The invention relates to an intelligent substation data processing method, in particular to a rapid data processing method for an intelligent substation SCD model.
Background
The detailed data model and the configuration information of the intelligent substation are accurately described by adopting a configuration description file (SCD) defined in the IEC61850 standard, the key for realizing interconnection, intercommunication and information sharing between Intelligent Electronic Devices (IEDs) of the intelligent substation and related software of the intelligent substation lies in maintaining a complete, accurate and normative configuration description file (SCD) of the intelligent substation, and meanwhile, the accurate management and control of the configuration file also provides a good foundation for intelligent operation, maintenance and overhaul. At present, a transformer substation system is in a situation that mass data are difficult to process in time and needs to be solved in time.
Disclosure of Invention
The invention provides a rapid data processing method for an SCD (substation configuration description) model of an intelligent substation, aiming at solving the problem that the existing substation system is difficult to process mass data.
The invention provides the following technical scheme:
a method for processing SCD model fast data of an intelligent substation is characterized in that an SCD (substation configuration description) file is analyzed through a VTD (virtual terminal device), all analyzed contents are stored in a temporary memory database, and the analyzed contents are put into different table structures according to analyzed element types to serve as basic data for analysis;
the SCD configuration file analysis process comprises the following steps:
(1) reading the SCD file, reading the SCD file into a memory in a binary mode through a VTD, and recording the position information of each node;
(2) analyzing the SCD file, analyzing the information in the configuration file through the VTD in an analyzing process, reading the content according to the position information, and finally storing the content in a temporary memory database;
(3) analyzing the result intelligently, after all the contents of the configuration file are analyzed and stored in the memory database, traversing the data in the memory database through multiple threads, finding out the associated information according to the analysis attribute, and finally recording the analyzed result into the service database;
(4) and (4) visually presenting, finally presenting the analysis result to a page through a visualization tool, presenting related attribute information and an association relation, and mainly presenting a network diagram and a logical diagram through an SVG method.
In step (1), the specific program flow for reading in the memory is as follows:
a. creating a file object according to the file path;
b. if the file cannot be found, throwing out file inspection abnormity, closing file input stream, and if the file cannot be normally closed, throwing out file external port abnormity;
c. opening a write-in file, namely a target file;
d. constructing an input stream from the source file;
e. constructing an output stream according to the target file;
f. reading data from a source file according to bytes until the reading is finished;
g. calling File Out Put Stream for writing data into a target File according to bytes;
h. closing the inlet flow;
j. the output flow is closed.
In the step (4), the SCD model generates a network connection diagram through an SVG method, and the implementation steps are as follows:
(1) accessing the analysis result, and caching each interval and the corresponding IED list;
(2) in each interval, the IEDs are arranged according to the types of the IEDs, each interval is divided into five rows, a merging unit, an intelligent terminal, protection, measurement and control and other types are sequentially arranged from bottom to top, and after the arrangement is finished, the length and the width of the interval are recorded;
(3) the arrangement of intervals is carried out according to interval length, width, number and voltage level, the arrangement is carried out according to the voltage level from high to low, and the whole graph is arranged into a square.
In the step (4), the SCD model generates a logic diagram by a JUNG method, wherein the processing steps for generating the connecting terminal are as follows:
(1) analyzing corresponding IED, LD and data set input;
(2) judging whether the IED exists, if so, continuously judging whether the LD exists, otherwise, newly building an object corresponding to the IED;
(3) judging whether the LD exists, if so, continuously judging whether a data set exists, otherwise, creating an object corresponding to the LD;
(4) judging whether the data set exists or not, if so, putting the data set into a corresponding input terminal list, and otherwise, creating an object corresponding to the data set;
(5) connection terminal establishment is completed.
Compared with the prior art, the invention has the beneficial effects that: according to the technical method for rapidly processing the SCD model of the intelligent substation, disclosed by the invention, an advanced information management processing method is adopted, a large amount of information related to the intelligent substation is generated aiming at the networking and informatization results, the operation, maintenance and overhaul efficiency of the intelligent substation is improved through highly-visible graph display information association logic, and the intuitiveness of maintenance and overhaul is also improved, so that the operation and maintenance management level of the intelligent substation is greatly improved.
Drawings
Fig. 1 is a block diagram of an overall structure of the invention for rapid data processing of an intelligent substation SCD model.
Fig. 2 is a diagram of a network connection framework generated by the SVG method according to the present invention.
Fig. 3 is a flow chart of the process for generating a connection terminal according to the JUNG method of the present invention.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a method for processing rapid data of an intelligent substation SCD model includes analyzing an intelligent substation configuration file SCD by a VTD, storing all analyzed contents in a temporary memory database, and placing the analyzed contents in different table structures according to analyzed element types as basic data for analysis;
the SCD configuration file analysis process comprises the following steps:
(1) reading the SCD file, reading the SCD file into a memory in a binary mode through a VTD, and recording the position information of each node;
the specific program flow for reading in the memory is as follows:
a. creating a file object according to the file path;
b. if the file cannot be found, throwing out file inspection abnormity, closing file input stream, and if the file cannot be normally closed, throwing out file external port abnormity;
c. opening a write-in file, namely a target file;
d. constructing an input stream from the source file;
e. constructing an output stream according to the target file;
f. reading data from a source file according to bytes until the reading is finished;
g. calling File Out Put Stream for writing data into a target File according to bytes;
h. closing the inlet flow;
j. the output flow is closed.
(2) Analyzing the SCD file, analyzing the information in the configuration file through the VTD in an analyzing process, reading the content according to the position information, and finally storing the content in a temporary memory database;
(3) analyzing the result intelligently, after all the contents of the configuration file are analyzed and stored in the memory database, traversing the data in the memory database through multiple threads, finding out the associated information according to the analysis attribute, and finally recording the analyzed result into the service database;
(4) and (4) visually presenting, finally presenting the analysis result to a page through a visualization tool, presenting related attribute information and an association relation, and mainly presenting a network diagram and a logical diagram through an SVG method.
As shown in fig. 2, the SCD model generates a network connection diagram through an SVG method, and the implementation steps are as follows:
(1) accessing the analysis result, and caching each interval and the corresponding IED list;
(2) in each interval, the IEDs are arranged according to the types of the IEDs, each interval is divided into five rows, a merging unit, an intelligent terminal, protection, measurement and control and other types are sequentially arranged from bottom to top, and after the arrangement is finished, the length and the width of the interval are recorded;
(3) the arrangement of intervals is carried out according to interval length, width, number and voltage level, the arrangement is carried out according to the voltage level from high to low, and the whole graph is arranged into a square.
As shown in fig. 3, the SCD model generates a logic diagram by the JUNG method, wherein the processing steps for generating the connection terminal are as follows:
(1) analyzing corresponding IED, LD and data set input;
(2) judging whether the IED exists, if so, continuously judging whether the LD exists, otherwise, newly building an object corresponding to the IED;
(3) judging whether the LD exists, if so, continuously judging whether a data set exists, otherwise, creating an object corresponding to the LD;
(4) judging whether the data set exists or not, if so, putting the data set into a corresponding input terminal list, and otherwise, creating an object corresponding to the data set;
(5) connection terminal establishment is completed.
As shown in fig. 2, the software implementation method for automatic mapping of complex logical connection relationships has been fully verified and well practiced in some emerging fields, such as internet social networks and network map services. But has been used less successfully in the field of power systems. In the invention, a series of methods of high-visualization automatic mapping based on secondary system physical and logical connection of an intelligent station model are realized for the first time by adopting an association graph theory and a technical method of computer graphics based on SVG (scalable vector graphics).
Referring to fig. 3, the physical fiber loop display is implemented by using JUNG (Java universal network/Graph frame), which is one of Java open source projects, and aims to provide an easy-to-use and general infrastructure for developing applications related to a Graph or a network structure. By using JUNG function call, a data structure of a graph or a network can be conveniently constructed, the own algorithm of a user can be written and tested, and a network graph of visual display data can be conveniently constructed. The invention focuses on the field of intelligent substations which are disclosed for the first time, virtual channels representing Logical connection among devices are displayed by a JUNG method, and a hierarchical Logical connection diagram among the devices is displayed by interacting with an SCD (substation configuration description) file according to output information and Input (INPUTS) information expressed by IEDs (intelligent devices) related to the virtual channels, Logical devices (Logical devices LD) and a Data Set.
The VTD-XML is an extraction-free XML parsing method, well solves the defects that DOM occupies too large memory and SAX element-by-element forward read-only processing does not contain structural information, and also provides the characteristics of rapid parsing and traversal, XPath support, increment updating and the like. The VTD-XML is an open source project and is supported by two platforms, namely Java and C.
And analyzing through the VTD, establishing various complex logic modules such as secondary equipment IED, data sets, virtual channels, virtual loops and the like in the system and association relations thereof, forming a quick search index in the system, and providing a model basis for mass real-time data analysis required by subsequent debugging and analysis work. It reads the original SCD file into the memory in binary mode, and does not do any decoding, then analyzes the position of each element on the binary byte array and records some information, and this record is called VTD (Virtual Token Descriptor). And performing subsequent traversal operation on the stored records, such as visual traversal operation of a substation secondary network graph, a secondary circuit logic graph and the like, and decoding and returning character strings on the original byte array by using information such as positions in the records if XML (extensible markup language) content needs to be extracted. The VTD has the advantages of comprehensive characteristics, strong usability, high efficiency and high speed.
According to the invention, the SCD model and the example based secondary equipment, and the physical connection and the virtual secondary connection of the equipment are realized, so that the automatic graphic representation is realized, the analysis process is to search related data for correlation analysis, and the efficiency and the reliability of the configuration management and control of the intelligent substation are powerfully improved.
In order to effectively manage the information of the intelligent substation, the intelligent substation configuration management and control method can be used for carrying out rapid analysis on the IEC61850 SCD configuration file of the intelligent substation, and establishing various complex logic modules such as secondary equipment IED, a data set, a virtual channel, a virtual loop and the like in the system and the incidence relation thereof according to the analysis result, so that a rapid search index in the system is formed, and a model basis is provided for mass real-time data analysis required by subsequent debugging and analysis work.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A method for rapidly processing SCD model data of an intelligent substation is characterized by comprising the following steps: the method comprises the following steps of analyzing an intelligent substation configuration file SCD through a VTD, storing all analyzed contents into a temporary memory database, putting the analyzed contents into different table structures according to analyzed element types to serve as basic data for analysis, and realizing an SCD configuration file analysis process, wherein the method comprises the following steps:
(1) reading the SCD file, reading the SCD file into a memory in a binary mode through a VTD, and recording the position information of each node;
(2) analyzing the SCD file, analyzing the information in the configuration file through the VTD in an analyzing process, reading the content according to the position information, and finally storing the content in a temporary memory database;
(3) analyzing the result intelligently, after all the contents of the configuration file are analyzed and stored in the memory database, traversing the data in the memory database through multiple threads, finding out the associated information according to the analysis attribute, and finally recording the analyzed result into the service database;
(4) and (4) visually presenting, finally presenting the analysis result to a page through a visualization tool, presenting related attribute information and an association relation, and mainly presenting a network diagram and a logical diagram through an SVG method.
2. The method for rapidly processing the SCD model of the intelligent substation according to claim 1, characterized in that: in step (1), the specific program flow for reading in the memory is as follows:
a. creating a file object according to the file path;
b. if the file cannot be found, throwing out file inspection abnormity, closing file input stream, and if the file cannot be normally closed, throwing out file external port abnormity;
c. opening a write-in file, namely a target file;
d. constructing an input stream from the source file;
e. constructing an output stream according to the target file;
f. reading data from a source file according to bytes until the reading is finished;
g. calling File Out Put Stream for writing data into a target File according to bytes;
h. closing the inlet flow;
j. the output flow is closed.
3. The method for rapidly processing the SCD model of the intelligent substation according to claim 1, characterized in that: in the step (4), the SCD model generates a network connection diagram through an SVG method, and the implementation steps are as follows:
(1) accessing the analysis result, and caching each interval and the corresponding IED list;
(2) in each interval, the IEDs are arranged according to the types of the IEDs, each interval is divided into five rows, a merging unit, an intelligent terminal, protection, measurement and control and other types are sequentially arranged from bottom to top, and after the arrangement is finished, the length and the width of the interval are recorded;
(3) the arrangement of intervals is carried out according to interval length, width, number and voltage level, the arrangement is carried out according to the voltage level from high to low, and the whole graph is arranged into a square.
4. The method for rapidly processing the SCD model of the intelligent substation according to claim 1, characterized in that: in the step (4), the SCD model generates a logic diagram by a JUNG method, wherein the processing steps for generating the connecting terminal are as follows:
(1) analyzing corresponding IED, LD and data set input;
(2) judging whether the IED exists, if so, continuously judging whether the LD exists, otherwise, newly building an object corresponding to the IED;
(3) judging whether the LD exists, if so, continuously judging whether a data set exists, otherwise, creating an object corresponding to the LD;
(4) judging whether the data set exists or not, if so, putting the data set into a corresponding input terminal list, and otherwise, creating an object corresponding to the data set;
(5) connection terminal establishment is completed.
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