A method and related device for verifying the correctness of connection relationship of power system model

Abstract

The present application discloses a method and related device for verifying the correctness of the connection relationship of a power system model, including: obtaining a power system model file to be verified; judging whether the ID of each object in the power system model file is unique and whether the object name is unique under the same plant station, obtaining a first judgment result; judging whether the associated attributes of the preset objects in the power system model file are complete, obtaining a second judgment result; judging whether the attribute content of several objects in the power system model file is correct, obtaining a third judgment result; judging whether the topological relationship between the objects in the power system model file is correct, obtaining a fourth judgment result; and analyzing the correctness of the connection relationship of the power system model based on the above judgment results. By analyzing several attributes of the objects in the model file, it is judged whether the model can meet the requirements of other system applications, solving the problem that the existing technology lacks effective means to verify the connection relationship of the model.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to a method and related device for verifying the correctness of connection relationships of an electric power system model. Background Art

[0002] The power dispatch automation system uses the Common Information Model (CIM) to represent grid structure and real-time operational information, and uses the CIM to exchange data with other systems. Each object in the model (such as transformers, switches, and meters) has attributes that describe its basic information, including its ID, device name, substation, voltage level, and associated nodes. Programmed dispatch operations involve intelligent devices within the substation automatically performing operations on all devices within one or more bays, replacing human operators. Before performing programmed operations, the connections in the power system model must be verified. If the connection verification fails, programmed operations cannot be performed.

[0003] The provincial power dispatching automation system must stitch together prefecture-level system models to obtain province-wide grid structure information. The correctness of the model connections is crucial to the accuracy of the resulting stitching. Currently, after the dispatching automation system exports the power system model, there is a lack of effective means to verify the model's connections, making it impossible to identify potential issues before the model is used in other systems. Summary of the Invention

[0004] The present application provides a method and related devices for verifying the correctness of the connection relationship of an electric power system model, which are used to solve the technical problem that the existing technology lacks effective means to verify the connection relationship of the model.

[0005] In view of this, a first aspect of the present application provides a method for verifying the correctness of a connection relationship of a power system model, the method comprising:

[0006] Obtain the power system model file to be tested;

[0007] Determine whether each object ID in the power system model file is unique and whether the object name is unique under the same plant station, and obtain a first determination result;

[0008] Determine whether the associated attributes of the preset objects in the power system model file are complete to obtain a second determination result; determine whether the attribute contents of several objects in the power system model file are correct to obtain a third determination result; determine whether the topological relationship between the objects in the power system model file is correct to obtain a fourth determination result;

[0009] The correctness of the connection relationship of the power system model is analyzed according to the first judgment result, the second judgment result, the third judgment result and the fourth judgment result.

[0010] Optionally, the step of obtaining the power system model file to be tested further includes:

[0011] It is determined whether the number of special objects in the power system model file is correct to obtain a fifth determination result.

[0012] Optionally, determining whether each object ID in the power system model file is unique and whether the object name is unique in the same plant or station to obtain a first determination result specifically includes:

[0013] When any two object IDs in the power system model file are the same, the connection relationship of the power system model may be incorrect;

[0014] When the object names of the same plant station are repeated in the power system model file, the connection relationship of the power system model may be incorrectly determined.

[0015] Optionally, the determining whether the associated attributes of the preset objects in the power system model file are complete to obtain a second determination result specifically includes:

[0016] Determine whether the conductive equipment contains the voltage level attribute, whether the transformer contains the plant attribute, and whether the capacitor contains the type attribute. If so, the power system model connection relationship is correct; otherwise, the power system model connection relationship is incorrect.

[0017] Optionally, the determining whether the attribute contents of the plurality of objects in the power system model file are correct to obtain a third determination result specifically includes:

[0018] Determine whether the transformer tap position relationship in the power system model file is correct, and whether the tap type step, transformer winding positive sequence reactance, three sides of three-winding transformer, high-voltage side of two-winding transformer, series capacitor type, shunt capacitor rated capacity, and generator rated capacity are all filled in. If so, the power system model connection relationship is correct, otherwise the power system model connection relationship is incorrect.

[0019] Optionally, the determining whether the topological relationship between the objects in the power system model file is correct to obtain a fourth determination result specifically includes:

[0020] Determine whether the terminal numbers of each object in the power system model file are repeated, whether the common connection points of each terminal number are different, and whether the voltage level attributes of objects with the same terminal number are the same. If so, the connection relationship of the power system model is correct, otherwise the connection relationship of the power system model is incorrect.

[0021] Optionally, the determining whether the number of special objects in the power system model file is correct to obtain a fifth determination result specifically includes:

[0022] Determine whether the grounding switch, winding, compensator, and generator in the power system model file have only one terminal and whether the split reactance has three terminals. If so, the power system model connection relationship is correct; otherwise, the power system model connection relationship is incorrect.

[0023] A second aspect of the present application provides a system for verifying the correctness of a connection relationship of a power system model, the system comprising:

[0024] An acquisition module, used for acquiring a power system model file to be tested;

[0025] The first judgment module is used to judge whether each object ID in the power system model file is unique and whether the object name is unique in the same plant and station, and obtain a first judgment result;

[0026] The second judgment module is used to judge whether the associated attributes of the preset objects in the power system model file are complete, and obtain a second judgment result; judge whether the attribute content of several objects in the power system model file is correct, and obtain a third judgment result; judge whether the topological relationship between the objects in the power system model file is correct, and obtain a fourth judgment result;

[0027] An analysis module is used to analyze the correctness of the connection relationship of the power system model according to the first judgment result, the second judgment result, the third judgment result and the fourth judgment result.

[0028] A third aspect of the present application provides a device for verifying the correctness of a connection relationship of a power system model, the device comprising a processor and a memory:

[0029] The memory is used to store program code and transmit the program code to the processor;

[0030] The processor is configured to execute the steps of the method for verifying the correctness of the connection relationship of the power system model as described in the first aspect according to the instructions in the program code.

[0031] In a fourth aspect, the present application provides a computer-readable storage medium for storing program code, wherein the program code is used to execute the method for verifying the correctness of the connection relationship of the power system model described in the first aspect.

[0032] It can be seen from the above technical solutions that this application has the following advantages:

[0033] The present application provides a method for verifying the correctness of the connection relationship of an electric power system model, including: obtaining an electric power system model file to be verified; judging whether the IDs of each object in the electric power system model file are unique and whether the object names are unique under the same plant station, to obtain a first judgment result; judging whether the associated attributes of preset objects in the electric power system model file are complete, to obtain a second judgment result; judging whether the attribute content of several objects in the electric power system model file is correct, to obtain a third judgment result; judging whether the topological relationship between the objects in the electric power system model file is correct, to obtain a fourth judgment result; and analyzing the correctness of the connection relationship of the electric power system model based on the first judgment result, the second judgment result, the third judgment result and the fourth judgment result.

[0034] Compared with the existing technology, this application can determine whether the model can meet the requirements of other system applications by analyzing several attributes of the objects in the model file, providing a verification method for discovering model problems in advance and improving the accuracy of the connection relationship of the power system model. When errors are found in the connection relationship of the model, relevant maintenance work can be carried out in a timely manner, avoiding functional errors and failures when other systems use the model, ensuring the accuracy of the power grid shared information from the source, and improving the efficiency of the intelligent operation and maintenance of the power grid. This solves the technical problem that the existing technology lacks effective means to verify the connection relationship of the model. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A flow chart of an embodiment of a method for verifying the correctness of a connection relationship of a power system model provided in an embodiment of the present application;

[0036] Figure 2 This is a structural diagram of a system embodiment for verifying the correctness of the connection relationship of the power system model provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0038] See also Figure 1 , a method embodiment of verifying the correctness of the connection relationship of the power system model provided in the embodiment of the present application includes:

[0039] Step 101: Obtain a power system model file to be tested;

[0040] It should be noted that those skilled in the art can export the latest power system model file from the dispatching automation system so that the technicians can obtain various information of the power system model.

[0041] Step 102: Determine whether each object ID in the power system model file is unique and whether the object name is unique within the same plant or station, and obtain a first determination result.

[0042] To verify the uniqueness of the ID of the object in the model, it should be noted that:

[0043] ID is one of the attributes of each object. If the IDs of different objects are repeated, compare the IDs of all objects. If there are any duplications, it means that the model connection relationship may be incorrect.

[0044] To verify the uniqueness of the device name of objects in the same plant station, it is necessary to explain:

[0045] The object must contain a device name attribute and must be unique within the same plant. Taking a plant as an example, the verification method is as follows: read all objects with the same attributes within the plant. If the device names of these objects are repeated, the model connection relationship may be incorrect.

[0046] Step 103: Determine whether the associated attributes of the preset objects in the power system model file are complete, obtaining a second determination result; determine whether the attribute contents of several objects in the power system model file are correct, obtaining a third determination result; determine whether the topological relationships between the objects in the power system model file are correct, obtaining a fourth determination result;

[0047] To verify the integrity of the associated attributes of the model object, it should be noted that:

[0048] Conductive equipment (such as switches and lines) must include voltage level attributes, transformers must include plant attributes, and capacitive reactors must provide their type attributes. If the corresponding attributes of the above objects are missing, the model connection relationship is considered incorrect.

[0049] Verify the correctness of the attributes of the model object. It should be noted that:

[0050] For transformer taps, the gear relationship must be reasonable, with minimum <= rated low <= normal <= rated high <= maximum; the tap type step size must be filled in; the transformer winding positive sequence reactance must be filled in, all three sides of a three-winding transformer must be filled in, and the high-voltage side of a two-winding transformer must be filled in; the series capacitor type must be filled in; the rated capacity of the shunt capacitor must be filled in, etc., and the rated capacity of the generator must be filled in, etc. Persons skilled in the art can also verify the correctness of the attribute content of other objects according to actual needs, which will not be repeated here.

[0051] To verify the correctness of the topological relationship between model objects, it should be noted that:

[0052] The terminal number is one of the attributes of an object. An object can have multiple terminals (that is, multiple terminal numbers). The terminal numbers of multi-terminal devices should not be repeated. The common connection points found by multi-terminal devices based on different terminal numbers should be different. If they are the same, it means that the terminals of the device are eventually connected in a ring, and the connection relationship is incorrect. If two devices have the same terminal number, it means that the two devices are connected, and the voltage level attributes of the interconnected devices should be the same, otherwise it means that the connection relationship is incorrect.

[0053] Step 104: determine whether the number of special objects in the power system model file is correct, and obtain a fifth determination result;

[0054] It should be noted that this embodiment checks whether the number of terminals of a special device is correct, specifically including the following steps:

[0055] Determine whether the grounding switch, winding, compensator, and generator should have only one terminal, that is, one terminal number. If these devices have multiple terminal numbers, the model is incorrect; the split reactor should have three terminals, otherwise the model is incorrect.

[0056] Step 105 : Analyze the correctness of the connection relationship of the power system model according to the first judgment result, the second judgment result, the third judgment result, the fourth judgment result, and the fifth judgment result.

[0057] It is understandable that those skilled in the art can determine whether the connection relationship of the power system model is correct based on the judgment results of several attributes of the objects in the model file. That is to say, by performing the above-mentioned verification steps on all objects in the model file, it is possible to verify whether the connection relationship of the model is correct.

[0058] This application analyzes several attributes of objects in the model file to determine whether the model can meet the requirements of other system applications, providing a means of verification for discovering model problems in advance and improving the accuracy of the connection relationship of the power system model. When errors are found in the connection relationship of the model, relevant maintenance work can be carried out in a timely manner, avoiding functional errors and failures when other systems use the model, ensuring the accuracy of power grid shared information from the source, and improving the efficiency of intelligent power grid operation and maintenance. This solves the technical problem that the existing technology lacks effective means to verify the connection relationship of the model.

[0059] The above is an embodiment of a method for verifying the correctness of the connection relationship of the power system model provided in an embodiment of the present application. The above is an embodiment of a system for verifying the correctness of the connection relationship of the power system model provided in an embodiment of the present application.

[0060] See also Figure 2, a system embodiment for verifying the correctness of the connection relationship of a power system model provided in an embodiment of the present application includes:

[0061] An acquisition module 201 is used to acquire a power system model file to be tested;

[0062] The first judgment module 202 is used to judge whether each object ID in the power system model file is unique and whether the object name is unique in the same plant and station, and obtain a first judgment result;

[0063] The second judgment module 203 is used to judge whether the associated attributes of the preset objects in the power system model file are complete, obtaining a second judgment result; judge whether the attribute contents of several objects in the power system model file are correct, obtaining a third judgment result; and judge whether the topological relationships between the objects in the power system model file are correct, obtaining a fourth judgment result;

[0064] The analysis module 204 is configured to analyze the correctness of the connection relationship of the power system model according to the first judgment result, the second judgment result, the third judgment result, and the fourth judgment result.

[0065] Furthermore, an embodiment of the present application also provides a device for verifying the correctness of a connection relationship of a power system model, the device comprising a processor and a memory:

[0066] The memory is used to store program code and transmit the program code to the processor;

[0067] The processor is used to execute the method for verifying the correctness of the connection relationship of the power system model described in the above method embodiment according to the instructions in the program code.

[0068] Furthermore, an embodiment of the present application also provides a computer-readable storage medium, which is used to store program code, and the program code is used to execute the method for verifying the correctness of the connection relationship of the power system model described in the above method embodiment.

[0069] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0070] The terms "first," "second," "third," "fourth," etc., in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or apparatus.

[0071] It should be understood that in this application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0072] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0073] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0074] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0075] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (English full name: Read-Only Memory, English abbreviation: ROM), random access memory (English full name: Random Access Memory, English abbreviation: RAM), disk or optical disk and other media that can store program code.

[0076] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for verifying the correctness of the connection relationship of a power system model, characterized in that: include: Obtain the power system model file to be tested; Determine whether each object ID in the power system model file is unique and whether the object name is unique under the same plant station, and obtain a first determination result; Determine whether the associated attributes of the preset objects in the power system model file are complete to obtain a second determination result; determine whether the attribute contents of several objects in the power system model file are correct to obtain a third determination result; determine whether the topological relationship between the objects in the power system model file is correct to obtain a fourth determination result; Analyzing the correctness of the connection relationship of the power system model according to the first judgment result, the second judgment result, the third judgment result, and the fourth judgment result; The determining whether the topological relationship between the objects in the power system model file is correct to obtain a fourth determination result includes: Determine whether the terminal numbers of each object in the power system model file are repeated, whether the common connection points of each terminal number are different, and whether the voltage level attributes of objects with the same terminal number are the same. If so, the connection relationship of the power system model is correct; otherwise, the connection relationship of the power system model is incorrect; The determining whether the associated attributes of the preset objects in the power system model file are complete to obtain the second determination result specifically includes: Determine whether the conductive equipment contains the voltage level attribute, whether the transformer contains the plant attribute, and whether the capacitor contains the type attribute. If so, the power system model connection relationship is correct; otherwise, the power system model connection relationship is incorrect.

2. The method for verifying the correctness of the connection relationship of the power system model according to claim 1, characterized in that: The step of obtaining the power system model file to be tested further includes: It is determined whether the number of special objects in the power system model file is correct to obtain a fifth determination result.

3. The method for verifying the correctness of the connection relationship of the power system model according to claim 1, characterized in that: The determining whether each object ID in the power system model file is unique and whether the object name is unique in the same plant or station to obtain a first determination result specifically includes: When any two object IDs in the power system model file are the same, the connection relationship of the power system model may be incorrect; When the object names of the same plant station are repeated in the power system model file, the connection relationship of the power system model may be incorrectly determined.

4. The method for verifying the correctness of the connection relationship of the power system model according to claim 1, characterized in that: The determining whether the attribute contents of the plurality of objects in the power system model file are correct, and obtaining a third determination result, specifically includes: Determine whether the transformer tap position relationship in the power system model file is correct, and whether the tap type step, transformer winding positive sequence reactance, three sides of three-winding transformer, high-voltage side of two-winding transformer, series capacitor type, shunt capacitor rated capacity, and generator rated capacity are all filled in. If so, the power system model connection relationship is correct, otherwise the power system model connection relationship is incorrect.

5. The method for verifying the correctness of the connection relationship of the power system model according to claim 2, characterized in that: The determining whether the number of special objects in the power system model file is correct to obtain a fifth determination result specifically includes: Determine whether the grounding switch, winding, compensator, and generator in the power system model file have only one terminal and whether the split reactance has three terminals. If so, the power system model connection relationship is correct; otherwise, the power system model connection relationship is incorrect.

6. A system for verifying the correctness of connection relationships of a power system model, characterized in that: include: An acquisition module, used for acquiring a power system model file to be tested; The first judgment module is used to judge whether each object ID in the power system model file is unique and whether the object name is unique in the same plant and station, and obtain a first judgment result; The second judgment module is used to judge whether the associated attributes of the preset objects in the power system model file are complete, and obtain a second judgment result; judge whether the attribute content of several objects in the power system model file is correct, and obtain a third judgment result; judge whether the topological relationship between the objects in the power system model file is correct, and obtain a fourth judgment result; an analysis module, configured to analyze the correctness of the connection relationship of the power system model according to the first judgment result, the second judgment result, the third judgment result, and the fourth judgment result; The determining whether the topological relationship between the objects in the power system model file is correct to obtain a fourth determination result includes: Determine whether the terminal numbers of each object in the power system model file are repeated, whether the common connection points of each terminal number are different, and whether the voltage level attributes of objects with the same terminal number are the same. If so, the connection relationship of the power system model is correct; otherwise, the connection relationship of the power system model is incorrect; The determining whether the associated attributes of the preset objects in the power system model file are complete to obtain the second determination result specifically includes: Determine whether the conductive equipment contains the voltage level attribute, whether the transformer contains the plant attribute, and whether the capacitor contains the type attribute. If so, the power system model connection relationship is correct; otherwise, the power system model connection relationship is incorrect.

7. A device for checking the correctness of the connection relationship of a power system model, characterized in that: The device includes a processor and a memory: The memory is used to store program code and transmit the program code to the processor; The processor is used to execute the method for verifying the correctness of the connection relationship of the power system model according to any one of claims 1 to 5 according to the instructions in the program code.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium is used to store program code, and the program code is used to execute the method for verifying the correctness of the connection relationship of the power system model according to any one of claims 1 to 5.

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