Construction method and device of transformer area topology simulation system, electronic equipment and storage medium

Abstract

The invention discloses a construction method and device of a transformer area topology simulation system, electronic equipment and a storage medium, and the method comprises the steps: carrying out the equal-proportion power reduction according to the real load of a transformer area, so as to construct a simulation load, and reducing the cost of the transformer area topology simulation system. Then, the binary tree simulation topology containing the line impedance is constructed, the electrical characteristics of the transformer area topology can be truly reflected, the transformer area topology structure in any form can be represented through the binary tree simulation topology, and the reliability, accuracy and universality of transformer area topology simulation are improved. Then, parameters of the simulation load and the line impedance load are adjusted according to the size of the real load and the size of the real line impedance of the transformer area, equal-proportion amplification compensation is carried out after electrical data of the simulation load are collected, a metering result obtained after compensation is sent to the tested device, and after the tested device completes calculation on the basis of a tested calculation method, the simulation load and the line impedance load are calculated. And the calculation result is compared with the parameter adjustment record, so that the accuracy of the measured algorithm can be judged according to the comparison result.

Description

Technical Field

[0001] The present invention relates to the technical field of substation topology simulation, and in particular, to a construction method and device of a substation topology simulation system, an electronic device, and a computer-readable storage medium. Background Art

[0002] With the rapid development of smart grids, some pure soft algorithms have emerged in the power system. Pure soft algorithms can realize related functions by using only the metering data of the power grid, without adding other equipment on the line. In order to verify the effectiveness and accuracy of pure soft algorithms, it is usually necessary to test the pure soft algorithms. At present, common pure soft algorithm test types include topology algorithm accuracy test, anti-electricity theft algorithm test, household transformer relationship identification algorithm test, electric energy meter error algorithm test, fault identification algorithm test, photovoltaic load capacity analysis algorithm test and photovoltaic control algorithm effectiveness detection. Among them, the substation topology accuracy test is to evaluate the accuracy and reliability of the power grid substation topology recognition algorithm in identifying and analyzing the substation structure. By comparing the algorithm output with the actual data, the accuracy of the algorithm is quantified to ensure the effectiveness of power network management; the anti-electricity theft algorithm test is to evaluate the effectiveness of the algorithm for detecting electricity theft in identifying and preventing electricity theft incidents. By simulating electricity theft scenarios, it is verified whether the algorithm can accurately detect abnormal electricity consumption behavior and improve the safety and economic benefits of the power grid; the user-transformer relationship recognition algorithm test is to evaluate the algorithm's ability to accurately identify the relationship between electricity users and transformers. By comparing the algorithm output with the actual data, its accuracy and effectiveness are verified to ensure the accuracy and efficiency of substation line loss management; the electric energy meter error algorithm test is the process of evaluating the accuracy and reliability of the algorithm for calculating the electric energy meter error. By comparing the algorithm calculation The calculation results are compared with the standard reference values ​​to verify the accuracy of the algorithm in detecting and correcting the errors in the readings of the electricity meters; the fault identification algorithm test is the process of evaluating the accuracy and response speed of the algorithm in detecting and locating faults in the power system. By simulating fault scenarios, it is verified whether the algorithm can quickly and accurately identify and report the fault location to ensure the stable operation and timely maintenance of the power grid; the photovoltaic carrying capacity analysis algorithm test is the process of evaluating the accuracy of the algorithm in calculating the optimal installation capacity and operating efficiency of the photovoltaic system in the substation and the reliability of the power grid system; the effectiveness detection of the photovoltaic control algorithm is to evaluate the performance of the algorithm in managing and optimizing the operation of the photovoltaic power generation system. By comparing simulation and actual data, the algorithm is verified in photovoltaic power generation scheduling, load balancing and system stability. The effect ensures that it can effectively improve the operating efficiency of the photovoltaic system and the stability of the substation.

[0003] At present, there are three ways to test pure soft algorithms: manual inspection, software simulation and hardware simulation. Taking the substation topology identification algorithm as an example, the manual inspection method is to detect and determine the substation topology relationship of the power system manually. This method usually relies on manual experience and on-site verification. It has the advantages of high accuracy and flexibility, but has the disadvantages of being time-consuming, labor-intensive and highly subjective. The software simulation method is to simulate the substation topology of the power system and the operation of various algorithms through computer software. It has the advantages of high efficiency, strong repeatability and low testing cost, but has the disadvantages of limited simulation accuracy and dependence on data quality, and the accuracy of the test results is poor. The hardware simulation method is to construct an actual physical model according to the topological structure of the substation or use hardware simulation equipment to truly simulate the operation of the power system. It has the advantages of high simulation accuracy and good dynamic response, but due to the large and complex power of the substation, the cost of the hardware simulation system is extremely high. In addition, the topological structures of different substations are different, and the hardware simulation system cannot simulate substations with different topological structures, which makes it difficult for the hardware simulation method to be widely promoted and applied. Summary of the invention

[0004] The present invention provides a construction method and device of a substation topology simulation system, an electronic device, and a computer-readable storage medium, which can reduce the cost of the substation topology simulation system, and can also truly reflect the electrical characteristics of the substation topology. In addition, any form of substation topology structure can be represented by using a binary tree simulation topology, thereby improving the reliability, accuracy and versatility of the substation topology simulation.

[0005] According to one aspect of the present invention, a method for constructing a substation topology simulation system is provided, comprising the following contents:

[0006] The real load is proportionally reduced in power to construct a simulated load;

[0007] Construct a binary tree simulation topology including line impedance based on simulated load and actual area topology;

[0008] According to the size of the real load and the real line impedance of the substation, the parameters of the simulated load and the line impedance load are adjusted respectively, and the electrical data of the simulated load is measured;

[0009] Perform proportional amplification compensation on the measurement results, and send the compensated measurement results to the device under test equipped with the measured algorithm;

[0010] The calculated results of the device under test are compared with the parameter adjustment records of the line impedance and the simulated load, and the accuracy of the algorithm under test is determined based on the comparison results.

[0011] Furthermore, the process of constructing a binary tree simulation topology including line impedance based on the simulated load and the actual topology of the substation includes the following:

[0012] Identify the multi-child node situation in the actual topology of the substation, where the multi-child node situation refers to the situation where multiple child nodes are directly connected to one parent node;

[0013] For the case of multiple child nodes, a virtual node is added between the parent node and multiple child nodes, and the line impedance between the virtual node and the parent node is set to zero;

[0014] Construct a binary tree structure to ensure that each parent node is directly connected to at most two child nodes, thereby constructing a binary tree simulation topology.

[0015] Furthermore, in the process of constructing the binary tree structure, virtual nodes are added to complete the area topology, so that each parent node in the entire area topology is directly connected to two child nodes.

[0016] Furthermore, before measuring the electrical data of the simulated load, the following steps are also included:

[0017] Simulate on-site noise to make the collected metering data incomplete.

[0018] Furthermore, an adjustable resistor is used to simulate line impedance.

[0019] Furthermore, a small-range, high-precision electric energy meter is used to measure the electrical data of the simulated load.

[0020] In addition, the present invention also provides a construction device for a substation topology simulation system, comprising:

[0021] The load simulation module is used to scale down the real load in proportion to construct a simulated load;

[0022] Binary tree simulation module, used to build a binary tree simulation topology including line impedance based on simulated load and actual topology of the substation;

[0023] A control module is used to adjust the parameters of the simulated load and the line impedance load according to the size of the real load and the real line impedance of the substation, and send the compensated measurement results to the device under test equipped with the measured algorithm;

[0024] An electrical metering module, used to measure the electrical data of the simulated load;

[0025] The metering compensation module is used to perform proportional amplification compensation on the metering results;

[0026] The test judgment module is used to compare the calculation results of the device under test with the parameter adjustment records of the line impedance and the simulated load, and judge the accuracy of the algorithm under test based on the comparison results.

[0027] Furthermore, it also includes:

[0028] The noise generation module is used to simulate on-site noise to make the collected measurement data incomplete.

[0029] In addition, the present invention also provides an electronic device, including a processor and a memory, wherein the memory stores a computer program, and the processor executes the steps of the above method by calling the computer program stored in the memory.

[0030] In addition, the present invention also provides a computer-readable storage medium for storing a computer program for constructing a substation topology simulation system, wherein the computer program executes the steps of the method described above when running on a computer.

[0031] The present invention has the following beneficial effects:

[0032] The construction method of the station area topology simulation system of the present invention first performs proportional power reduction according to the real load used in the station area to construct a simulated load. Since the power of the load is reduced, a low-power electronic load can be used to simulate the real load, thereby reducing the cost of the station area topology simulation system. Then, a binary tree simulation topology including line impedance is constructed based on the simulated load and the actual electrical topology of the station area. Since the binary tree simulation topology includes line impedance, the electrical characteristics of the station area topology can be truly reflected, and the reliability and accuracy of the station area topology simulation are improved. In addition, the binary tree simulation topology can be used to represent any form of station area topology structure, which greatly improves the versatility of the station area topology simulation system. Then, according to the size of the real load and the real line impedance of the station area, the parameters of the simulated load and the line impedance load are adjusted respectively, and the real situation of the actual station area topology can be accurately simulated. After collecting the electrical data of the simulated load, proportional amplification compensation is performed, and the compensated measurement result is sent to the device under test equipped with the measured algorithm. After the device under test completes the calculation based on the measured algorithm carried, the calculation result is compared with the parameter adjustment record, and the accuracy of the measured algorithm can be judged according to the comparison result, so that the accuracy of the measured algorithm can be tested.

[0033] In addition, the construction device of the substation topology simulation system of the present invention also has the above advantages.

[0034] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0036] Figure 1It is a flowchart of a method for constructing a substation topology simulation system according to a preferred embodiment of the present application.

[0037] Figure 2 yes Figure 1 Schematic diagram of the sub-process of step S2 in FIG.

[0038] Figure 3 It is a schematic diagram of the topological structure of a certain area in the preferred embodiment of the present application.

[0039] Figure 4 is Figure 3 Schematic diagram of the topological structure after adding a virtual node to the substation topology.

[0040] Figure 5 By adding a virtual node Figure 4 Schematic diagram of binary tree simulation topology after completing the area topology in .

[0041] Figure 6 Yes Figure 5 Schematic diagram of simulating the line impedance of the binary tree simulation topology using adjustable resistors.

[0042] Figure 7 It is a schematic diagram of the module structure of a construction device of a substation topology simulation system according to another embodiment of the present application. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] Reference Figure 1 The preferred embodiment of the present application provides a method for constructing a substation topology simulation system, comprising the following contents:

[0045] Step S1: scaling down the power of the real load in proportion to construct a simulated load;

[0046] Step S2: constructing a binary tree simulation topology including line impedance based on the simulated load and the actual topology of the substation;

[0047] Step S3: adjusting the parameters of the simulated load and the line impedance load respectively according to the size of the real load and the real line impedance of the substation, and measuring the electrical data of the simulated load;

[0048] Step S4: Perform proportional amplification compensation on the measurement result, and send the compensated measurement result to the device under test equipped with the measured algorithm;

[0049] Step S5: Compare the calculation results of the device under test with the parameter adjustment records of the line impedance and the simulated load, and determine the accuracy of the algorithm under test based on the comparison results.

[0050] It can be understood that the construction method of the substation topology simulation system of this embodiment first performs proportional power reduction according to the actual load used in the substation to construct a simulated load. Since the power of the load is reduced, a low-power electronic load can be used to simulate the actual load, reducing the cost of the substation topology simulation system. Then, a binary tree simulation topology including line impedance is constructed based on the simulated load and the actual electrical topology of the substation. Since the binary tree simulation topology includes line impedance, it can truly reflect the electrical characteristics of the substation topology, improve the reliability and accuracy of the substation topology simulation, and the binary tree simulation topology can be used to represent any form of substation topology structure, greatly improving the versatility of the substation topology simulation system. Next, the parameters of the simulated load and line impedance are adjusted according to the size of the actual load of the substation and the actual line impedance, which can accurately simulate the actual situation of the actual substation topology. After collecting the electrical data of the simulated load, proportional amplification compensation is performed, and the compensated measurement results are sent to the device under test equipped with the measured algorithm. After the device under test completes the calculation based on the measured algorithm, the calculation result is compared with the parameter adjustment record. The accuracy of the measured algorithm can be judged based on the comparison result, thereby testing the accuracy of the measured algorithm.

[0051] It can be understood that in step S1, considering that some real loads in the substation have large power, if electronic loads of equal power are used to simulate real loads, the cost of the substation topology simulation system will be extremely high. Therefore, the present invention reduces the power of the real loads used in the substation in proportion to the power, and uses low-power, adjustable electronic loads to construct simulated loads. Since the power of the loads is reduced, the cost of the substation topology simulation system is greatly reduced. The specific reduction ratio can be set according to actual needs. In addition, the electronic load unit specifically includes ordinary resistive and inductive simulation load units, photovoltaic regulation effectiveness verification units, charging pile regulation effectiveness verification units and overload power consumption simulation units. For example, to simulate a 10kW resistive load at the substation, a 200W resistive adjustable electronic load can be used; to simulate a 5kW inductive load at the substation, a 100W inductive adjustable electronic load can be used; the photovoltaic regulation effectiveness verification unit includes a DC power supply, an inverter, a control device and a power quality collector, which are used to simulate the impact of photovoltaics on the substation, and to verify whether the adverse impact of photovoltaics on the substation can be suppressed after regulation; the charging pile regulation effectiveness verification unit includes an adjustable electronic load (including charging pile strategy simulation), an inverter and a power quality collector, which are used to simulate the impact of charging piles on the substation, and to verify whether the adverse impact of charging piles on the substation can be suppressed after regulation; the overload power consumption simulation unit includes a high-power adjustable electronic load, which is used to simulate the impact of large load power consumption on the substation.

[0052] It is understandable that Figure 2 As shown, in the step S2, the process of constructing a binary tree simulation topology including line impedance based on the simulated load and the actual topology of the substation includes the following contents:

[0053] Step S21: Identify the multi-child node situation in the actual topology of the substation, wherein the multi-child node situation refers to the situation where a parent node is directly connected to multiple child nodes;

[0054] Step S22: For a case of multiple child nodes, a virtual node is added between the parent node and the multiple child nodes, and the line impedance between the virtual node and the parent node is set to zero;

[0055] Step S23: construct a binary tree structure to ensure that each parent node is directly connected to at most two child nodes, thereby constructing a binary tree simulation topology.

[0056] It can be understood that line impedance plays a key role in the substation topology. In the substation topology, the electrical characteristics of the substation topology cannot be reflected without line impedance, because the line impedance determines the voltage distribution and power flow. If the line impedance is ignored, all substation topologies will be simplified to the direct connection between the load and the transformer, which cannot reflect the electrical relationship and characteristics in the actual power system. Moreover, considering the different topological structures of different substations, in order to improve the versatility of the substation topology simulation system, it is necessary to ensure that the simulation topology can simulate a variety of substation topological structures. Therefore, the present invention constructs a binary tree simulation topology including line impedance, which not only takes into account the substation line impedance, but also can be applied to the simulation of different substation topologies.

[0057] Specifically, Figure 3 The substation topology shown in the figure, A~H in the figure represent the end nodes, that is, the end loads of the substation topology, the line segments in the figure represent the lines, and the intersection of the line segments represents the intermediate nodes. The transformers and all end nodes have metering equipment. It is assumed that the line impedance between all two nodes is 1Ω. First, identify the multi-child node situation in the actual substation topology, where the multi-child node situation refers to the situation where multiple child nodes are directly connected to a parent node, the parent-child relationship between nodes is a relative relationship, and multiple child nodes are at least three child nodes. For example, Figure 3 There is a three-way fork at the parent node ① in , which is a multi-child node situation. Then, for each multi-child node situation, add a virtual node between the parent node and multiple child nodes, so that the parent node is directly connected to some child nodes, and indirectly connected to another part of the child nodes through the virtual node, and the line impedance between the virtual node and the parent node is set to zero. For example, introduce a virtual node between node ① and the end nodes A, B, and C, so that the end nodes A and B are directly connected to the virtual node, the virtual node is directly connected to node ①, and the end node C is directly connected to node ①, and the line impedance between the virtual node and node ① is set to zero, then Figure 3 The area topology shown is transformed into Figure 4 Then, a binary tree structure is constructed to ensure that each parent node is directly connected to at most two child nodes, thereby constructing a binary tree simulation topology.

[0058] Preferably, in the process of constructing the binary tree structure, the area topology is further supplemented by adding virtual nodes, so that each parent node in the entire area topology is directly connected to two child nodes. Figure 4In the terminal topology where the terminal node C is located, the parent node is directly connected to only one child node. In addition, the topological branch where the terminal node H is located does not form a complete binary tree structure. In order to enable the binary tree simulation topology to configure the area simulation topology more flexibly, virtual nodes are further added to the area topology to complete it, so that each parent node in the entire area topology is directly connected to two child nodes. The binary tree simulation topology after the area topology is completed is as follows: Figure 5 As shown, * indicates a virtual node added at the end.

[0059] Optionally, an adjustable resistor is used to simulate the line impedance, so as to adjust the line impedance as needed. Figure 5 The line impedance in the binary tree simulation topology is as follows Figure 6 As shown, by adjusting the resistance value of the adjustable resistors R1 to R31 and the opening and closing of the adjustable electronic load, the simulation of any five-layer or less topological structure can be realized. Of course, if the simulation of six-layer or more topological structure is required, the branch level can be added to the binary tree simulation topology.

[0060] It can be understood that in step S3, the size of the simulated load is adjusted after proportional power reduction according to the size of the actual load in the substation, and the size of the line impedance is adjusted according to the size of the actual line impedance in the substation, so as to accurately simulate the actual situation of the actual substation topology, and then the electrical data of the simulated load is measured during the test process to facilitate the calculation of the tested device based on the onboard tested algorithm.

[0061] Optionally, in step S3, before measuring the electrical data of the simulated load, the following steps are also included:

[0062] Simulate on-site noise to make the collected metering data incomplete.

[0063] It can be understood that the noise generator is used to simulate the noise phenomenon on site, so that the collected measurement data will have abnormal phenomena such as default, so as to test whether the algorithm under test can calculate the correct result when the collected data is incomplete.

[0064] In addition, it is preferred to use a small-range, high-precision electric energy meter to measure the electrical data of the simulated load. Since the simulated load simulates the real load by reducing the power in proportion, the electrical data value of the simulated load is smaller than the real situation. Therefore, using a small-range, high-precision electric energy meter for measurement is beneficial to improve the measurement accuracy.

[0065] It can be understood that in the step S4, after the metering result is proportionally amplified and compensated, the compensated metering result is sent to the device under test equipped with the measured algorithm, and the device under test can use the measured algorithm to perform data calculation based on the compensated metering result, wherein the metering result of the electric energy meter is specifically compensated by the virtual meter system. Among them, since the simulated load simulates the real load by proportional power reduction, and a small-range, high-precision electric energy meter is used for metering, the collected electrical metering data is smaller than the real data, so it is necessary to perform proportional amplification compensation on the metering result, and multiply all electrical data by the compensation coefficient, wherein the compensation coefficient is greater than 1, and is specifically set according to the reduction ratio of step S1. In addition, in other embodiments of the present invention, since the electric energy meter itself has power consumption and the resistor has contact resistance, in order to further improve the simulation accuracy, it is also necessary to perform additional compensation on the metering data through the virtual meter system, and the specific compensation value is set according to the model of the electric energy meter and the resistor.

[0066] It can be understood that in step S5, the device under test performs calculations based on the measured algorithm and compensated metering data, and then compares the calculation results with the parameter adjustment records of the line impedance and the simulated load, and the accuracy of the measured algorithm can be judged according to the comparison results. For example, for the substation topology identification algorithm, the substation simulation topology can be determined according to the parameter adjustment records of the line impedance and the simulated load, and the device under test can calculate the substation calculation topology, and compare the substation simulation topology with the substation calculation topology to judge the accuracy of the substation topology identification algorithm.

[0067] In addition, if Figure 7 As shown, another embodiment of the present invention further provides a construction device for a substation topology simulation system, preferably using the construction method as described above, the device comprising:

[0068] The load simulation module is used to scale down the real load in proportion to construct a simulated load;

[0069] Binary tree simulation module, used to build a binary tree simulation topology including line impedance based on simulated load and actual topology of the substation;

[0070] A control module is used to adjust the parameters of the simulated load and the line impedance load according to the size of the real load and the real line impedance of the substation, and send the compensated measurement results to the device under test equipped with the measured algorithm;

[0071] An electrical metering module, used to measure the electrical data of the simulated load;

[0072] The metering compensation module is used to perform proportional amplification compensation on the metering results;

[0073] The test judgment module is used to compare the calculation results of the device under test with the parameter adjustment records of the line impedance and the simulated load, and judge the accuracy of the algorithm under test based on the comparison results.

[0074] It can be understood that the construction device of the substation topology simulation system of this embodiment first performs proportional power reduction according to the real load used in the substation to construct a simulated load. Since the power of the load is reduced, a low-power electronic load can be used to simulate the real load, reducing the cost of the substation topology simulation system. Then, a binary tree simulation topology including line impedance is constructed based on the simulated load and the actual electrical topology of the substation. Since the binary tree simulation topology includes line impedance, it can truly reflect the electrical characteristics of the substation topology, improve the reliability and accuracy of the substation topology simulation, and the binary tree simulation topology can be used to represent any form of substation topology structure, greatly improving the versatility of the substation topology simulation system. Next, the parameters of the simulated load and line impedance are adjusted according to the size of the actual load of the substation and the actual line impedance, which can accurately simulate the actual situation of the actual substation topology. After collecting the electrical data of the simulated load, proportional amplification compensation is performed, and the compensated measurement results are sent to the device under test equipped with the measured algorithm. After the device under test completes the calculation based on the measured algorithm, the calculation result is compared with the parameter adjustment record. The accuracy of the measured algorithm can be judged based on the comparison result, thereby testing the accuracy of the measured algorithm.

[0075] In addition, the construction device also includes:

[0076] The noise generation module is used to simulate on-site noise to make the collected measurement data incomplete.

[0077] It can be understood that the various modules of the embodiment of the present device correspond to the various steps of the above-mentioned method embodiment, so the specific working process of each module will not be repeated here, and the corresponding reference is made to the various steps of the above-mentioned method embodiment.

[0078] In addition, another embodiment of the present invention further provides an electronic device, including a processor and a memory, wherein the memory stores a computer program, and the processor executes the steps of the above method by calling the computer program stored in the memory.

[0079] In addition, another embodiment of the present invention further provides a computer-readable storage medium for storing a computer program for constructing a substation topology simulation system, wherein the computer program executes the steps of the method described above when running on a computer.

[0080] The general form of computer readable storage media includes: floppy disk, flexible disk, hard disk, magnetic tape, any other magnetic medium, CD-ROM, any other optical medium, punch cards, paper tape, any other physical medium with a pattern of holes, random access memory (RAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), flash erasable programmable read-only memory (FLASH-EPROM), any other memory chip or cartridge, or any other medium that can be read by a computer. The instructions can further be transmitted or received by a transmission medium. The term transmission medium can include any tangible or intangible medium that can be used to store, encode or carry instructions for execution by a machine, and includes digital or analog communication signals or other intangible media that facilitate the communication of the above instructions. Transmission media include coaxial cables, copper wires and optical fibers, which include the wires of a bus used to transmit a computer data signal.

[0081] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of complete hardware embodiments, complete software embodiments, or embodiments in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code. The scheme in the embodiments of the present application can be implemented in various computer languages, for example, object-oriented programming language Java and literal scripting language JavaScript, etc.

[0082] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0083] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0084] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0085] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0086] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for constructing a substation topology simulation system, characterized in that: Includes the following: The real load is proportionally reduced in power to construct a simulated load; Construct a binary tree simulation topology including line impedance based on simulated load and actual area topology; According to the size of the real load and the real line impedance of the substation, the parameters of the simulated load and the line impedance load are adjusted respectively, and the electrical data of the simulated load is measured; Perform proportional amplification compensation on the measurement results, and send the compensated measurement results to the device under test equipped with the measured algorithm; The calculated results of the device under test are compared with the parameter adjustment records of the line impedance and the simulated load, and the accuracy of the algorithm under test is determined based on the comparison results.

2. The method for constructing a substation topology simulation system according to claim 1, characterized in that: The process of constructing a binary tree simulation topology including line impedance based on the simulated load and the actual topology of the substation includes the following contents: Identify the multi-child node situation in the actual topology of the substation, where the multi-child node situation refers to the situation where multiple child nodes are directly connected to one parent node; For the case of multiple child nodes, a virtual node is added between the parent node and multiple child nodes, and the line impedance between the virtual node and the parent node is set to zero; Construct a binary tree structure to ensure that each parent node is directly connected to at most two child nodes, thereby constructing a binary tree simulation topology.

3. The method for constructing a substation topology simulation system according to claim 2, characterized in that: In the process of constructing the binary tree structure, virtual nodes are also added to complete the area topology, so that each parent node in the entire area topology is directly connected to two child nodes.

4. The method for constructing a substation topology simulation system according to claim 1, characterized in that: Before measuring the electrical data of the simulated load, the following are also included: Simulate on-site noise to make the collected metering data incomplete.

5. The method for constructing a substation topology simulation system according to claim 1, characterized in that: An adjustable resistor is used to simulate line impedance.

6. The method for constructing a substation topology simulation system according to claim 1, characterized in that: A small-range, high-precision electric energy meter is used to measure the electrical data of the simulated load.

7. A device for constructing a substation topology simulation system, characterized in that: include: The load simulation module is used to scale down the real load in proportion to construct a simulated load; Binary tree simulation module, used to build a binary tree simulation topology including line impedance based on simulated load and actual topology of the substation; A control module is used to adjust the parameters of the simulated load and the line impedance load according to the size of the real load and the real line impedance of the substation, and send the compensated measurement results to the device under test equipped with the measured algorithm; An electrical metering module, used to measure the electrical data of the simulated load; The metering compensation module is used to perform proportional amplification compensation on the metering results; The test judgment module is used to compare the calculation results of the device under test with the parameter adjustment records of the line impedance and the simulated load, and judge the accuracy of the algorithm under test based on the comparison results.

8. The construction device of the substation topology simulation system according to claim 7, characterized in that: Also includes: The noise generation module is used to simulate on-site noise to make the collected measurement data incomplete.

9. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a computer program, and the processor executes the steps of the method according to any one of claims 1 to 6 by calling the computer program stored in the memory.

10. A computer-readable storage medium for storing a computer program for constructing a substation topology simulation system, characterized in that: When the computer program is run on a computer, the steps of the method according to any one of claims 1 to 6 are executed.

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