Intelligent station configuration file virtual terminal model matching method

Abstract

The invention relates to the related technical field of intelligent substations, in particular to an intelligent station configuration file virtual terminal model matching method, according to the matching method, results are graded according to the recognition accuracy of a principle, correct matching results can be ensured by preferentially using the results, and if the correct matching results are not ensured, the matching result is not ensured. And sorting is carried out according to accurate possibilities. Compared with an accurate matching method, the method has a wider identification range, and terminals not in an identification library can be identified; for a fuzzy matching method, the result is more deterministic; according to the method, matching result sets of multiple modes are used as factors, main features of virtual terminator analysis are covered, and limitation of a single feature is avoided; according to the method, the standard business model library can be expanded at will according to needs, the method does not aim at any model standard, the modeling standard of the to-be-recognized model is not limited, and the method has wide compatibility.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent substation, and particularly relates to a matching method of virtual terminal model of intelligent substation configuration file. BACKGROUND

[0002] With the continuous advancement of new power system construction, as the core hub of the energy internet, the digitalization, networking and intelligentization level of the intelligent substation continues to upgrade. In the secondary system of the intelligent substation, the system configuration description file (SCD) is the “digital blueprint” for realizing the logical association, information interaction and function collaboration between devices, and the virtual terminal as the core constituent unit of the SCD file directly determines the accuracy and reliability of signal transmission between protection and control devices, merging units, intelligent terminals and other devices, and is a key link for ensuring the safe and stable operation of the substation.

[0003] The ICD (IED capability description file) file constituting the SCD file has a certain self-discipline right under the premise of meeting the basic standards, which causes obvious differences in the ICD files of different manufacturers, and the same function in the ICD files of different manufacturers is not the same, especially the definition of the virtual terminal. Since the virtual terminal directly describes the input and output signal functions of the device, the number and types thereof are completely defined according to the functions of the device, and it is difficult to identify them through simple enumeration or classification methods. When the computer system processes these files, it will establish a data model according to its own business needs. However, due to the difficulty in identifying the virtual terminal model, the computer system cannot match these data with its own data model, and can only increase a large amount of manual configuration work. This seriously affects the use experience of the system. Therefore, accurately and efficiently identifying the virtual terminal function in the SCD file is of great significance for the operation and maintenance, fault troubleshooting and optimization design of the intelligent substation. SUMMARY

[0004] The main purpose of the present application is to provide a matching method of virtual terminal model of intelligent substation configuration file, which can match the virtual terminal model of different manufacturers, models and versions with the business model of the computer system, and solve the identification problem of the SCD file in different systems.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme: A matching method of virtual terminal model of intelligent substation configuration file, comprising the following steps: S1: defining a standard business model library According to the demand, a service model library is established, which is used to collect virtual terminal features of various service signal data, and includes ID, service name, device type, virtual terminal type, function definition, virtual terminal description set, virtual terminal reference set, and device feature set. Initialization of standard virtual terminal identification library According to the service demand, a standard service model library is formed, which includes typical input and output signals of relay protection devices, merging units, and intelligent terminals. The service name, virtual terminal type, and function definition are recorded. S2: Service model matching of virtual terminal S3: Analysis of matching results According to the matching result set obtained in section S2, the matching service model signal is analyzed. Two pieces of information are output: a. The value of service model signal R; b. The certainty of service model signal R result, including two values: certain and suspicious. "Certain" represents that the analysis result is relatively reliable and does not need manual confirmation and adjustment. "Suspicious" represents that the result may need manual adjustment. S4: Manual adjustment When the result is suspicious, the manual adjustment logic is entered, and the priority options and regular options are provided. S5: If the final result R is not in R3, the result is written back to the virtual terminal identification library.

[0006] Further, in step S1: ID: Unique identification of the model Service name: Reflects the standardized name of the service signal, which is used for system function identification Device type: The device type to which the service signal belongs, indicating the device usage range of the signal; Virtual terminal type: Identifies the type of the signal in the virtual terminal model, including GOOSE input, GOOSE output, SV input, and SV output; Function definition: Limits the function range of the signal; Virtual terminal description set: Description set of the service signal in the virtual terminal; Virtual terminal reference set: IEC61850 reference feature set of the service signal in the virtual terminal, including ldInst, prefix, lnInst, lnClass, doName, and daName; IED feature set: Describes the IED model features of the virtual terminal device, which is used to limit the device characteristics of the same reference feature.

[0007] Further, in step S1: select the domestic mainstream manufacturers equipment, import the initialization data of each signal model in the standard service model library, enter its typical virtual terminal description and typical virtual terminal reference, form a set of initial standard service model library.

[0008] Further, in step S2, the following is included: S21, import the substation configuration description file, parse the device type of IED therein; S22, parse the virtual terminal to be identified from the substation configuration description file, form a set of virtual terminals to be tested A {a1, a2, a3, a4...a n}; S23, extract the related data of the virtual terminal to be tested in the substation configuration description file according to the content of the standard service model library, including: device type, virtual terminal type, virtual terminal description, virtual terminal reference, IED characteristics; S24, description exact match According to the device type and virtual terminal type, traverse the virtual terminal description set, and perform exact match on the description, to obtain a description exact match result set R1 {}; S25, description fuzzy match According to the device type and virtual terminal type, traverse the virtual terminal description set, and perform fuzzy match on the description, to obtain a description fuzzy match result set R2 {}; S26, reference exact match Extract the virtual terminal reference and IED characteristic set, traverse the virtual terminal reference set and the device characteristic set, and perform exact match on the data, to obtain a reference exact match result set R3 {}; S27, reference fuzzy match Extract the virtual terminal reference and IED characteristic set, traverse the virtual terminal reference set and the device characteristic set, and perform fuzzy match on the data, to obtain a reference fuzzy match result set R4 {}.

[0009] Further, in step S3, the analysis step sequence is performed according to the following logic: S31, when R1 ≠ Ø, R3 ≠ Ø; calculate the intersection R1 ∩ R3 of R1 and R3; If R1 ∩ R3 ≠ Ø, then R = R1 ∩ R3, the result is determined; If R1 ∩ R3 = Ø, then R = R1, the result is determined; S32, when R1 ≠ Ø, R3 = Ø; then R = R1, the result is determined; S33, R1 = Ø, R2 ≠ Ø, R3 ≠ Ø, calculate the intersection R2 ∩ R3 of R2 and R3; If R2 ∩ R3 = Ø, then R = R3, the result is suspicious; If R2∩R3 has only one element, then R = R2∩R3, the result is certain; If R2∩R3 has multiple elements, then R = R2∩R3, the result is suspicious; S34, R1 = Ø, R2 = Ø, R3 ≠ Ø, then, R = R3, the result is suspicious; S35, R1 = Ø, R2 ≠ Ø, R3 = Ø, then, R = R2, the result is suspicious; S36, R1 = Ø, R2 = Ø, R3 = Ø, R4 ≠ Ø, then R = R4, the result is suspicious; S37, R1 = Ø, R2 = Ø, R3 = Ø, R4 = Ø, then R is empty, the result is suspicious.

[0010] Further, in step S4: S41, priority option The selection range of the priority option is R2∪R3∪R4, forming the priority option; S42, general option According to the type of the device and the type of the virtual terminal, the virtual terminal model is screened to form the general option.

[0011] Further, in step S5, when writing back, according to the type of the device and the type of the virtual terminal, the content written includes virtual terminal description, virtual terminal reference, and IED characteristics; if the artificial confirmation that the to-be-identified virtual terminal does not belong to the range of the existing standard business model library, a business signal model can be added, and the result is written back.

[0012] The beneficial effects of the present application are that the matching method of the intelligent station configuration file virtual terminal model of the present application has the following advantages compared with the conventional precise matching, fuzzy matching and word disassembly matching methods: 1. The matching method of the present application classifies the results according to the recognition accuracy of the principle, preferentially uses the matching result that can ensure correctness, and if there is no matching result that can ensure correctness, the results are sorted according to the possibility of accuracy. Compared with the precise matching method, the present application has a wider recognition range and can recognize terminals not in the recognition library; for the fuzzy matching method, the results are more certain, and it can be clear which results are correct; 2. The matching method of the present application collects the matching results of multiple methods as factors, covers the main characteristics of virtual terminal analysis, and avoids the limitations of single characteristics; 3. The matching method of the present application can arbitrarily extend the standard business model library as needed, is not targeted at any model standard, does not limit the modeling standard of the to-be-identified model, and has wide compatibility. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The virtual terminal identification flow chart of the matching method of the virtual terminal model of the intelligent station configuration file of the application. DETAILED DESCRIPTION

[0014] Specific embodiment 1: In order to make the person skilled in the art better understand the technical scheme of the application, the technical scheme of the application will be described clearly and completely in combination with the embodiments below. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the application. It should be noted that: in the application, all the embodiments and preferred implementation methods mentioned in the text can be combined to form new technical schemes, if not specifically stated. In the application, all the technical features and preferred features mentioned in the text can be combined to form new technical schemes, if not specifically stated. The "range" disclosed in the application is in the form of lower limit and upper limit, which can be one or more lower limits and one or more upper limits, respectively. Unless otherwise stated, the professional and scientific terms used in the text have the same meaning as that familiar to the skilled person in the art.

[0015] As shown in the description accompanying drawings Figure 1 The application is directed to the matching work of virtual terminal and business model in the SCD analysis process of intelligent substation, and designs and provides a matching method of virtual terminal model of intelligent station configuration file, which can effectively solve the matching problem of virtual terminal model and business model. Specifically, the application adopts the following technical scheme: S1: standard business model library definition 11. Establish a business model library according to the requirements, which is used to collect the virtual terminal characteristics of various business signal data; including: ID, business name, device type, virtual terminal type, function definition, virtual terminal description set, virtual terminal reference set, and device feature set, wherein the ID is the unique identification of the model Business name: reflects the standardized name of the business signal, which is used for the identification of system function; Device type: the device type to which the business signal belongs, which identifies the device usage range of the signal, such as protection and control, merging unit intelligent terminal, and security and stability device, etc.; Virtual terminal type: identifies the type of the signal in the virtual terminal model, including: GOOSE input, GOOSE output, SV input, and SV output; Function definition: limits the function range of the signal; Virtual terminal description set: the description set of the business signal in the virtual terminal; Virtual terminal reference set: IEC61850 reference feature set of service signal in virtual terminal, including ldInst, prefix, lnInst, lnClass, doName, daName; IED feature set: IED model feature of device to which virtual terminal belongs, used to limit device characteristics existing in same reference feature. Including: manufacturer, model, version, etc. 12, initialize standard virtual terminal identification library According to service requirements, form a set of standard service model library. The library includes typical input and output signals of relay protection devices, merging units and intelligent terminals. Complete the input of service name, virtual terminal type and function definition; select domestic mainstream equipment, import initialization data for each signal model in the standard service model library, and input the typical virtual terminal description and typical virtual terminal reference. Form an initial standard service model library.

[0016] S2: Service model matching of virtual terminal 21 Import substation configuration description file and parse device type of IED therein; 22, parse virtual terminal to be identified from substation configuration description file, and form a set of virtual terminals to be tested A {a1, a2, a3, a4...a n}; 23, extract relevant data of virtual terminal to be tested in substation configuration description file according to the content of standard service model library. Including: device type, virtual terminal type, virtual terminal description, virtual terminal reference, IED feature; 24, accurate matching of description According to the device type and virtual terminal type, traverse the virtual terminal description set, and perform accurate matching on the description to obtain the accurate matching result set R1 {} of the description; 25, fuzzy matching of description According to the device type and virtual terminal type, traverse the virtual terminal description set, and perform fuzzy matching on the description to obtain the fuzzy matching result set R2 {} of the description; 26, accurate matching of reference Extract virtual terminal reference and IED feature set, traverse virtual terminal reference set and device feature set, and perform accurate matching on the data to obtain the accurate matching result set R3 {} of the reference; 27, fuzzy matching of reference Extract virtual terminal reference and IED feature set, traverse virtual terminal reference set and device feature set, and perform fuzzy matching on the data to obtain the fuzzy matching result set R4 {} of the reference.

[0017] S3: Analysis of matching results According to the matching result set obtained in S2, the matching service model signal is analyzed, and the following two pieces of information are output: a. The value of the service model signal R; b. The certainty of the service model signal R result, including two values: certain and suspicious, "certain" representing that the analysis result is relatively reliable and does not need to be manually confirmed and adjusted, and "suspicious" representing that the result may need to be manually adjusted; The analysis step sequence is performed according to the following logic: 1. When R1≠Ø, R3≠Ø.

[0018] Calculate the intersection R1∩R3 of R1 and R3; If R1∩R3≠Ø, then R=R1∩R3, and the result is certain; If R1∩R3=Ø, then R=R1, and the result is certain; 2. When R1≠Ø, R3=Ø; Then R=R1, and the result is certain; 3. R1=Ø, R2≠Ø, R3≠Ø, calculate the intersection R2∩R3 of R2 and R3; If R2∩R3=Ø, then R=R3, and the result is suspicious; If R2∩R3 has only one element, then R=R2∩R3, and the result is certain; If R2∩R3 has multiple elements, then R=R2∩R3, and the result is suspicious; 4. R1=Ø, R2=Ø, R3≠Ø, then R=R3, and the result is suspicious; 5. R1=Ø, R2≠Ø, R3=Ø, then R=R2, and the result is suspicious; 6. R1=Ø, R2=Ø, R3=Ø, R4≠Ø, then R=R4, and the result is suspicious; 7. R1=Ø, R2=Ø, R3=Ø, R4=Ø, then the value of R is empty, and the result is suspicious.

[0019] S4: Manual adjustment When the result is suspicious, enter the manual adjustment logic to provide the priority option and the regular option to be selected; 41. Priority option The selection range of the priority option: R2∪R3∪R4, forming the priority option; 42. Regular option According to the device type and the virtual terminal type, the virtual terminal model is filtered to form the regular option.

[0020] S5: If the final result R∉R3, the result is written back to the virtual terminal identification library; When writing back, according to the type of the device, the type of the virtual terminal, the writing content includes virtual terminal description, virtual terminal reference, and IED characteristics; If the artificial confirmation is that the to-be-identified virtual terminal does not belong to the existing standard service model library, a service signal model can be added, and then the result is written back.

[0021] In summary, the matching method of the intelligent station configuration file virtual terminal model can grade the result according to the recognition accuracy of the principle, preferentially use the matching result that can ensure correctness, and, if there is no matching result that can ensure correctness, sort according to the possibility of accuracy. Compared with the accurate matching method, the matching method has a wider recognition range and can recognize terminals that are not in the recognition library. For the fuzzy matching method, the result is more deterministic. Meanwhile, the standard service model library can be arbitrarily expanded according to the need, is not targeted at any model standard, does not limit the modeling standard of the to-be-identified model, and has wide compatibility. The above shows and describes the basic principle, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A matching method of an intelligent station configuration file virtual terminal model, characterized in that, Comprising the following steps: S1: Standard service model library definition According to the demand, a service model library is established for collecting the virtual terminal characteristics of various service signal data; including: ID, service name, device type, virtual terminal type, function definition, virtual terminal description set, virtual terminal reference set, device feature set; Initialization of standard virtual terminal identification library According to the service demand, a set of standard service model library is formed; the library includes typical input and output signals of typical relay protection devices, merging units and intelligent terminals; Complete the input of service name, virtual terminal type and function definition; S2: Service model matching of virtual terminal S3: Analysis of matching results According to the matching result set obtained in S2, the matching service model signal is analyzed; Output 2 items of information: a. The value of service model signal R; b. The certainty of service model signal R result, including two values: certain and suspicious, "certain" represents that the analysis result is relatively reliable and does not need manual confirmation and adjustment, and "suspicious" represents that the result may need manual adjustment; S4: Manual adjustment When the result is suspicious, enter the manual adjustment logic to provide the priority options and the standby options of the conventional options; S5: If the final result R is not in R3, the result is written back to the virtual terminal identification library.

2. The method of claim 1, wherein the method is performed by a terminal. In step S1: ID: unique identification of the model Service name: standardized name reflecting the service signal, used for identification of system function; Device type: device type to which the service signal belongs, identifying the device usage range of the signal; Virtual terminal type: identifying the type of the signal in the virtual terminal model, including: GOOSE input, GOOSE output, SV input, and SV output; Function definition: limiting the function range of the signal; Virtual terminal description set: description set of the service signal in the virtual terminal; Virtual terminal reference set: IEC61850 reference feature set of the service signal in the virtual terminal, including ldInst, prefix, lnInst, lnClass, doName, and daName; IED feature set: IED model feature of the device to which the virtual terminal belongs, used to limit the device characteristics of the same reference feature.

3. The method of claim 3, wherein the method further comprises: In step S1: select the equipment of domestic mainstream manufacturers, import the initialization data of each signal model in the standard service model library, input the typical virtual terminal description and typical virtual terminal reference, and form an initial standard service model library.

4. The method of claim 1, wherein the method is performed by a processor. In step S2, the following is included: S21, import the substation configuration description file and parse the device type of IED therein; S22, from the transformer substation configuration description file, parse the virtual terminal to be identified, form the set of virtual terminals to be tested A {a1, a2, a3, a4...a n}; S23, according to the content of the standard service model library, extract the related data of the virtual terminal to be tested in the substation configuration description file, including: device type, virtual terminal type, virtual terminal description, virtual terminal reference, and IED feature; S24, accurate description matching According to the device type and virtual terminal type, traverse the virtual terminal description set, and perform accurate description matching to obtain the accurate description matching result set R1{}; S25, fuzzy description matching According to the device type and virtual terminal type, traverse the virtual terminal description set, and perform fuzzy description matching to obtain the fuzzy description matching result set R2{}; S26, reference accurate matching Extracting virtual terminal reference and IED feature set, traversing virtual terminal reference set and device feature set, performing accurate matching on data to obtain reference accurate matching result set R3{}; S27, reference fuzzy matching Extracting virtual terminal reference and IED feature set, traversing virtual terminal reference set and device feature set, performing fuzzy matching on data to obtain reference fuzzy matching result set R4{}.

5. The method of claim 1, wherein the method further comprises: In step S3, the analysis step sequence of the matching service model signal is performed according to the following logic: S31, when R1≠Ø, R3≠Ø; calculating the intersection R1∩R3 of R1 and R3; If R1∩R3≠Ø, then R=R1∩R3, the result is determined; If R1∩R3=Ø, then R=R1, the result is determined; S32, when R1≠Ø, R3=Ø; then R=R1, the result is determined; S33, R1=Ø, R2≠Ø, R3≠Ø, calculating the intersection R2∩R3 of R2 and R3; If R2∩R3=Ø, then R=R3, the result is suspicious; If R2∩R3 has only one element, then R=R2∩R3, the result is determined; If R2∩R3 has multiple elements, then R=R2∩R3, the result is suspicious; S34, R1=Ø, R2=Ø, R3≠Ø, then R=R3, the result is suspicious; S35, R1=Ø, R2≠Ø, R3=Ø, then R=R2, the result is suspicious; S36, R1=Ø, R2=Ø, R3=Ø, R4≠Ø, then R=R4, the result is suspicious; S37, R1=Ø, R2=Ø, R3=Ø, R4=Ø, then R value is empty, the result is suspicious.

6. The method of claim 1, wherein the method is performed by a processor. In step S4: S41, priority option The selection range of the priority option: R2∪R3∪R4, forming the priority option; S42, regular option According to the device type and virtual terminal type, the virtual terminal model is screened to form the regular option.

7. The method of claim 1, wherein the method is performed by a processor. In step S5, when writing back, according to the device type and virtual terminal type, the written content includes virtual terminal description, virtual terminal reference and IED feature; If the artificial confirmation is that the to-be-identified virtual terminal does not belong to the existing standard service model library range, a service signal model can be added, and the result is written back.

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