Model conversion method and device of power analysis system and simulation system, and medium

Abstract

This application relates to the field of power grid dispatching technology, and discloses a method, device, and medium for model conversion between a power analysis system and a simulation system. The method includes: constructing a mapping relationship between a first power grid model of the power analysis system and a second power grid model of the simulation system; and adjusting the operating mode of at least one conversion object in the second power grid model according to the mapping relationship. This application, by constructing a mapping relationship between the power analysis system and the simulation system model, automates the modeling process of the power analysis system in the simulation system, simplifying the modeling process and reducing labor costs. It also simplifies the simulation section debugging cycle, significantly improves the operating efficiency of the simulation system, and thus effectively improves the efficiency of producing training simulation teaching materials. Furthermore, the method of this application has a wide range of applications and possesses strong flexibility and operability.

Description

Technical Field

[0001] This disclosure relates to the field of power grid dispatching technology, and more specifically, to a model conversion method, device, and medium for power analysis systems and simulation systems. Background Technology

[0002] As the power grid structure becomes increasingly complex, the number of potential weak points and uncertainties in its operation increase, leading to a gradual decrease in safety and stability margins. On the one hand, actual operating points are approaching safety boundaries; on the other hand, the safety domain for power grid operation is difficult to significantly expand. This will result in a progressively lower safety and stability margin for my country's power grid, and the generation and adjustment of its operating modes will face increasing constraints. Any changes could potentially trigger serious faults such as exceeding limits, overloads, or even grid collapses. Therefore, it is necessary to use simulation methods to flexibly reproduce the entire network's operating modes, enabling pre-emptive predictions and forecasts of power grid operation.

[0003] In existing technologies, to reproduce the overall network operation, it is necessary to manually model the power analysis system annually using typical grid operation data (such as summer high and winter high modes) provided by the operator, within a dispatcher training simulation system. This involves adjusting generation, load levels, and operating modes. However, the power analysis system and the dispatcher training simulation system are two independent systems, making it impossible to exchange model information, operating mode information, and fault setting information. This results in a cumbersome modeling process, high labor costs, and significantly impacts the efficiency of the simulation system, thereby affecting the efficiency of creating training simulation materials. Therefore, there is an urgent need for a method to efficiently model the power analysis system within the existing power analysis system. Summary of the Invention

[0004] In view of the above situation, this application provides a model conversion method, device and medium for power analysis system and simulation system, which aims to solve the problem of efficient modeling of power analysis system in power analysis system.

[0005] In a first aspect, embodiments of this application provide a model conversion method between a power analysis system and a simulation system, including:

[0006] Construct a mapping relationship between the first power grid model of the power analysis system and the second power grid model of the simulation system;

[0007] Based on the mapping relationship, adjust the operation mode of at least one conversion object in the second power grid model.

[0008] Secondly, embodiments of this application also provide a model conversion device for power analysis systems and simulation systems, the device comprising:

[0009] A construction unit is used to construct the mapping relationship between the first power grid model of the power analysis system and the second power grid model of the simulation system;

[0010] An adjustment unit is used to adjust the operating mode of at least one conversion object in the second power grid model according to the mapping relationship.

[0011] Thirdly, embodiments of this application also provide an electronic device, including: a processor; and a memory arranged to store computer-executable instructions, which, when executed, cause the processor to perform the steps of the model conversion method for the power analysis system and simulation system described above.

[0012] Fourthly, embodiments of this application also provide a computer-readable storage medium storing one or more programs, which, when executed by an electronic device including multiple applications, cause the electronic device to perform the steps of the model conversion method for the power analysis system and simulation system described above.

[0013] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0014] This application establishes a mapping relationship between a first power grid model of the power analysis system and a second power grid model of the simulation system. Then, based on this mapping relationship, the operating mode of one or more conversion objects in the second power grid model is adjusted. Through this established mapping relationship, the power analysis system is automatically modeled in the simulation system, simplifying the modeling process and reducing labor costs. Furthermore, it simplifies the simulation section debugging cycle, significantly improving the operating efficiency of the simulation system and thus effectively increasing the efficiency of producing training simulation materials. Simultaneously, the method of this application has a wide range of applications and possesses strong flexibility and operability. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 A schematic flowchart of a model conversion method between a power analysis system and a simulation system according to an embodiment of this application is shown.

[0017] Figure 2 A schematic diagram of the structure of a node plant mapping table according to an embodiment of this application is shown;

[0018] Figure 3 A schematic diagram of the structure of a bus mapping table according to an embodiment of this application is shown;

[0019] Figure 4 A schematic diagram of the structure of a line mapping table according to an embodiment of this application is shown;

[0020] Figure 5 A schematic diagram of the structure of a transformer mapping table according to an embodiment of this application is shown;

[0021] Figure 6 A schematic diagram of the structure of a generator mapping table according to an embodiment of this application is shown;

[0022] Figure 7 A schematic diagram of the structure of a load mapping table according to an embodiment provided in this application is shown;

[0023] Figure 8 A schematic diagram of the structure of a parallel capacitive reactance mapping table according to an embodiment provided in this application is shown;

[0024] Figure 9 A schematic flowchart of the first part of a model conversion method for a power analysis system and a simulation system according to another embodiment of this application is shown;

[0025] Figure 10 This illustration shows a second part of the flowchart of a model conversion method for a power analysis system and a simulation system according to another embodiment of this application;

[0026] Figure 11 A schematic diagram of the structure of a model conversion device for a power analysis system and a simulation system according to an embodiment of this application is shown;

[0027] Figure 12 A schematic diagram of the structure of an electronic device provided in an embodiment of this application is shown. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0030] As the power grid structure becomes increasingly complex, the number of potential weak points and uncertainties in its operation increase, leading to a gradual decrease in safety and stability margins. On the one hand, actual operating points are approaching safety boundaries; on the other hand, the safety domain for power grid operation is difficult to significantly expand. This will result in a progressively lower safety and stability margin for my country's power grid, and the generation and adjustment of its operating modes will face increasing constraints. Any changes could potentially trigger serious faults such as exceeding limits, overloads, or even grid collapses. Therefore, it is necessary to use simulation methods to flexibly reproduce the entire network's operating modes, enabling pre-emptive predictions and forecasts of power grid operation.

[0031] In existing technologies, in order to reproduce the operation mode of the entire network, it is necessary to manually model the power analysis system annually based on the typical power grid operation mode (such as summer high, winter high, etc.) data provided by the operator, in the dispatcher training simulation system, and adjust the generation, load levels and operation mode. However, the power analysis system and the dispatcher training simulation system are two independent systems, and it is impossible to achieve the exchange of model information, operation mode information, and fault setting information. This makes the modeling process cumbersome, consumes a lot of manual costs, and greatly affects the operating efficiency of the simulation system, thereby affecting the efficiency of producing training simulation teaching materials.

[0032] Based on this, this application proposes a model conversion method between a power analysis system and a simulation system. By constructing a mapping relationship between the models of the power analysis system and the simulation system, this application automates the modeling of the power analysis system in the dispatcher training simulation system, simplifying the modeling process and reducing labor costs. It can also simplify the simulation section debugging cycle, greatly improve the operating efficiency of the simulation system, and thus effectively improve the efficiency of producing training simulation teaching materials. At the same time, the method of this application has a wide range of applications and is highly flexible and operable.

[0033] Figure 1 This diagram illustrates a flowchart of a model conversion method between a power analysis system and a simulation system according to an embodiment of this application. Figure 1 It can be seen that this application includes at least steps S101-S102:

[0034] Step S101: Construct the mapping relationship between the first power grid model of the power analysis system and the second power grid model of the simulation system.

[0035] The power analysis system mentioned in this application refers to the power grid system in the power system analysis software (PSD-BPA, Bonneville Power Administration - Power System Department). The PSD-BPA software can be used for full-process simulation of AC and DC power systems, including steady-state, electromagnetic transient, electromechanical transient, medium- and long-term dynamic, short-circuit current calculation, voltage stability calculation and frequency domain calculation.

[0036] The simulation system described in this application can be, but is not limited to, a power grid simulation software system for dispatcher training simulation. Here, the dispatcher training simulation system simulates various dispatching operations and system operating conditions after faults according to the mathematical model of the actual power system being simulated, and sends this information to the model in the power system control center, providing dispatchers with a realistic training environment. This achieves the goal of training dispatchers without affecting the operation of the actual power system, training dispatchers' operational capabilities under normal conditions and their rapid response capabilities under fault conditions. It can also be used as a tool for power grid dispatching and operation personnel to analyze power grid operation.

[0037] First, a mapping relationship is established between the first power grid model of the power analysis system and the second power grid model of the simulation system, so that the conversion from the first power grid model to the second power grid model can be completed later using this mapping relationship.

[0038] In some embodiments of this application, the step of constructing the mapping relationship between the first power grid model of the power analysis system and the second power grid model of the simulation system in the above method includes: constructing a power grid model mapping table, and constructing multiple types of data cards of the first power grid model according to the BPA data file of the power analysis system; reading the node information in the multiple types of data cards; and updating the read node information to the corresponding position in the power grid model mapping table to obtain the mapping relationship.

[0039] The BPA data files described in this application include various types of BPA data cards, such as B cards (node ​​data cards), L / E cards (line data cards), and T / R cards (transformer data cards). These various BPA data cards include various data, such as line name, the unit, area code, and electronic parameters.

[0040] The power grid model mapping tables include, but are not limited to: node substation mapping tables, busbar mapping tables, line mapping tables, transformer mapping tables, generator mapping tables, load mapping tables, and parallel capacitive reactance mapping tables.

[0041] First, a power grid model mapping table can be established in the database of the aforementioned training simulation system. Then, multiple types of data cards required for constructing the first power grid model can be obtained from the BPA data file. The node information in the multiple types of data cards can be read, and the read node information can be updated to the corresponding position in the power grid model mapping table to obtain the mapping relationship.

[0042] Figure 2 A schematic diagram of the structure of a node plant mapping table according to an embodiment provided in this application is shown. Figure 3 A schematic diagram of the structure of a bus mapping table according to an embodiment of this application is shown below. Figure 2 and Figure 3 The process of obtaining the bus mapping relationship in the above mapping relationship is illustrated by an example.

[0043] A bus mapping table for the power grid model is established in the database of the training simulation system. In some embodiments, such as... Figure 3 As shown, the equipment table can be called from the training simulation platform to obtain one or more sets of "ID number, plant ID, bus ID" data. This data is then filled into the blank bus mapping table to obtain the bus mapping table. At this time, the data in the "node name" field is empty. Specifically, the bus mapping table shown in Table (1) can be obtained.

[0044] Table 1

[0045]

[0046]

[0047] When the power grid model mapping table includes a bus mapping table, the mapping relationship is between "ID number, substation ID, bus ID" and "node name". The BPA data file can be input into a pre-written script to obtain multiple types of data cards needed to construct the first power grid model and read the node information from these data cards. The node information may include whether the bus has associated nodes. To facilitate the retrieval of node information data, the read node information can be first filled into fields such as... Figure 2 The node-plant mapping table shown can be used to obtain, for example, the node-plant mapping table shown in Table 2.

[0048] Table 2

[0049]

[0050] Then, the read node information is updated to the corresponding position in the bus mapping table to obtain the mapping relationship. For example, from the read node information, it can be seen that the associated node of bus 1 is node 1, and the associated node of bus 2 is node 2. Figure 2 In the diagram, node 1 corresponds to ID1, and node 2 corresponds to ID2. Therefore, ID1 can be entered into the "Chinese Name" field of bus mapping table number 4, and ID2 can be entered into the "Chinese Name" field of bus mapping table number 8 to obtain the mapping relationship, as shown in Table 3 below. It should be noted that the process of obtaining other mapping tables, such as line mapping tables, transformer mapping tables, generator mapping tables, load mapping tables, and parallel capacitive reactance mapping tables, is similar to the process of obtaining the bus mapping table described above, and will not be repeated here.

[0051] Table 3

[0052]

[0053]

[0054] Step S102: Adjust the operation mode of at least one conversion object in the second power grid model according to the mapping relationship.

[0055] After obtaining the mapping relationship, the operating mode of at least one conversion object in the second power grid model can be adjusted according to the mapping relationship. In some embodiments, the conversion objects in the second power grid model that need to have their operating modes adjusted include buses, and the operating mode of the buses can be adjusted based on the bus mapping table. In other embodiments, the conversion objects in the second power grid model that need to have their operating modes adjusted include buses and loads, and the operating mode of the buses can be adjusted first based on the bus mapping table, and then the operating mode of the loads can be adjusted based on the load mapping table. In still other embodiments, the conversion objects in the second power grid model that need to have their operating modes adjusted include buses, transformers, and generators, and the operating mode of the buses can be adjusted first based on the bus mapping table, then the operating mode of the transformers can be adjusted based on the transformer mapping table, and finally the operating mode of the generators can be adjusted based on the generator mapping table.

[0056] from Figure 1 As shown in the method, this application constructs a mapping relationship between the first power grid model of the power analysis system and the second power grid model of the simulation system. Then, based on this mapping relationship, the operating mode of one or more conversion objects in the second power grid model is adjusted. Through the constructed mapping relationship, this application automates the modeling of the power analysis system in the simulation system, simplifying the modeling process and reducing labor costs. It also simplifies the simulation section debugging cycle, significantly improving the operating efficiency of the simulation system, thereby effectively improving the efficiency of producing training simulation teaching materials. Furthermore, the method of this application has a wide range of applications and possesses strong flexibility and operability.

[0057] In some embodiments of this application, in the above method, the conversion object includes a bus, and the power grid model mapping table includes a bus mapping table; adjusting the operation mode of at least one conversion object in the second power grid model according to the mapping relationship includes: determining whether there is an associated node for the target bus in the second power grid model based on the bus mapping table; if the target bus has an associated node, setting the operation state of the target bus to the commissioning state; if the target bus does not have an associated node, setting the operation state of the target bus to the shutdown state; if the target bus has the same associated node as at least one other bus, setting the operation states of the target bus and the at least one other bus to the parallel operation state.

[0058] Table 4 is based on Figure 3 The obtained bus mapping table, in conjunction with Table 4, provides an exemplary description of the process for adjusting the bus operation mode in the second power grid model based on the bus mapping table. According to Table 4, it can be determined that bus 1 is associated with node 1 corresponding to ID1. Therefore, the relevant switches and disconnectors can be adjusted to set the operating state of bus 1 to the operational state. Bus 3 does not have a corresponding associated node, so the relevant switches and disconnectors can be adjusted to set the operating state of bus 3 to the shutdown state. Bus 2 and bus 4 have the same associated node, both being node 2 corresponding to ID2. Therefore, the relevant switches and disconnectors can be adjusted to set the operating states of bus 2 and bus 4 to parallel operation. In some embodiments, if bus 5, bus 6, and bus 7 have the same associated node, both being node 5 corresponding to ID5, the relevant switches and disconnectors can be adjusted to set the operating states of bus 5, bus 6, and bus 7 to parallel operation. In other embodiments, if the associated nodes of bus 5, bus 6, bus 7 and bus 8 are the same, all being node 5 corresponding to ID5, then the relevant switches and disconnectors can be adjusted to set the operating state of bus 5, bus 6, bus 7 and bus 8 to a parallel operating state.

[0059] Table 4

[0060]

[0061]

[0062] In some embodiments of this application, in the above method, the conversion object includes: a line, and the power grid model mapping table includes: a line mapping table; adjusting the operation mode of at least one conversion object in the second power grid model according to the mapping relationship includes: determining, based on the line mapping table, whether the target line in the second power grid model has a first starting node and a first ending node; if the target line does not have the first starting node and the first ending node, then setting the operation state of the target line to a shutdown state; if the target line has the first starting node and the first ending node, then determining whether the first starting node and the first ending node of the target line have a first associated bus; if the first starting node and the first ending node of the target line have at least one first associated bus, then connecting the target line to any one of the at least one first associated bus.

[0063] Figure 4 This paper shows a schematic diagram of the structure of a line mapping table according to an embodiment of this application. Table 5 is based on... Figure 4The obtained line mapping table, in conjunction with Table 5, will be used to illustrate the process of adjusting the line operation mode in the second power grid model based on the line mapping table. According to Table 5, it can be determined that line segment 1 does not have a first segment node and an end node, so the associated switches and disconnectors can be adjusted to set the operating state of line segment 1 to a shutdown state; line segment 2 has a first segment node ID1 and an end node ID2, and based on... Figure 3 If the bus corresponding to the first node ID1 and the bus corresponding to the last node ID2 are both bus 1, then the associated disconnectors can be further adjusted to connect segment 2 to bus 1. In some embodiments, if segment 2 has a first node ID1 and a last node ID2, and based on... Figure 3 If the bus corresponding to the first node ID1 and the bus corresponding to the last node ID2 are both bus 1 and bus 2, then the associated disconnectors can be further adjusted to connect segment 2 to bus 1 or bus 2. In other embodiments, if segment 2 has a first node ID1 and a last node ID2, and based on... Figure 3 If the bus corresponding to the first node ID1 and the bus corresponding to the last node ID2 are both bus 1, bus 2 and bus 3, then the associated disconnectors can be further adjusted to connect segment 2 to bus 1, bus 2 or bus 3.

[0064] Table 5

[0065]

[0066] In some embodiments of this application, in the above method, the conversion object includes a transformer, and the power grid model mapping table includes a transformer mapping table; adjusting the operation mode of at least one conversion object in the second power grid model according to the mapping relationship includes: adjusting the operation state and tap position of the transformer based on the transformer mapping table, wherein the operation state of the transformer is adjusted according to the following steps: based on the transformer mapping table, determining whether there is a second starting node and a second ending node in each winding of the target transformer in the second power grid model; if there is no second starting node and a second ending node in each winding of the target transformer, then setting the operation state of the target transformer to a shutdown state; if there is a second starting node and a second ending node in each winding of the target transformer, then setting the operation state of the target transformer to a shutdown state; if there is a second starting node and a second ending node in each winding of the target transformer, then setting the operation state of the target transformer to a shutdown state. If the second start node and the second end node are used, it is determined whether there is a second associated busbar for each winding of the target transformer; if there is at least one second associated busbar for each winding of the target transformer, then each winding of the target transformer is connected to any one of the at least one second associated busbar; wherein, the tap position of the transformer is adjusted according to the following steps: obtaining the rated voltage data and tap position type data of each winding of the target transformer; based on the BPA data file of the power analysis system, according to the second start node and the second end node, obtaining the node tap position data of each winding of the target transformer; adjusting the tap position data of each winding of the target transformer according to the node tap position data, the rated voltage data, and the tap position type data.

[0067] Figure 5 A schematic diagram of a transformer mapping table according to an embodiment of this application is shown. Table 6 is based on... Figure 5 The obtained transformer mapping table, in conjunction with Table 6, will be used to illustrate the two processes of adjusting the transformer operating status and tap position in the second power grid model based on the transformer mapping table.

[0068] According to Table 6, it can be determined that winding 1 of main transformer 1 in the second power grid model does not have a start-end node and an end-end node. Therefore, the switches and disconnectors associated with winding 1 of main transformer 1 can be adjusted to set the operating state of main transformer 1 to a shutdown state. Winding 2 of main transformer 2 has a start-end node ID3 and an end-end node ID4, and based on... Figure 3 If the busbar corresponding to the first node ID3 and the busbar corresponding to the last node ID4 are both busbar 3, then the associated disconnect switches can be further adjusted to connect the winding 2 of the main transformer 2 to busbar 3. In some embodiments, if the winding 2 of the main transformer 2 has a first node ID3 and a last node ID4, and based on Figure 3If the bus corresponding to the first-end node ID3 and the bus corresponding to the last-end node ID4 are bus 3 and bus 4, then the associated disconnect switches can be further adjusted to connect the winding 2 of the main transformer 2 to bus 3 or bus 4. In some other embodiments, if the winding 2 of the main transformer 2 has a first-end node ID3 and a last-end node ID4, and based on... Figure 3 If the bus corresponding to the first node ID3 and the bus corresponding to the last node ID4 are bus 3, bus 4 and bus 5, then the associated disconnect switches can be further adjusted to connect the winding 2 of the main transformer 2 to bus 3, bus 4 or bus 5.

[0069] Table 6

[0070]

[0071]

[0072] The tap position of the transformer is adjusted. First, the rated voltage data and tap position type data of each winding of the target transformer can be obtained. In some embodiments, the rated voltage data and tap position type data of winding 2 of the main transformer 2 can be directly obtained from the training simulation system. The tap position type data includes tap position step size data and rated tap position data.

[0073] Then, based on the first node ID3 and the last node ID4, the transformer data card in the BPA data file of the power analysis system is queried to obtain the node tap position data corresponding to winding 2 of the main transformer 2.

[0074] Finally, based on the aforementioned tap position data, rated voltage deviation, and tap type data, the tap position of winding 2 of main transformer 2 is adjusted. Specifically, in some embodiments, the tap position of the winding can be determined according to the following formula (1):

[0075]

[0076] Where U1 represents the node tap position data; U e This refers to the rated voltage data of the winding; N step This refers to the gear shift step size data; T nom This refers to the rated gear position data; T act This refers to the winding position.

[0077] For example, the node tap position data U1 corresponding to winding 2 of main transformer 2 is 24, and the rated voltage data U e The value is 4, and the gear step size data is N. step The value is 1, and the rated gear data is T. nom If the value is 5, then U1 and U e N step T nomSubstituting into the above formula (1), we can obtain that the tap corresponding to winding 2 of the main transformer 2 is 10.

[0078] In some embodiments of this application, in the above method, the conversion object includes a generator, and the power grid model mapping table includes a generator mapping table; adjusting the operation mode of at least one conversion object in the second power grid model according to the mapping relationship includes: adjusting the operation status and output mode of the generator based on the generator mapping table, wherein the operation status of the generator is adjusted according to the following steps: based on the generator mapping table, determining whether the target generator in the second power grid model has an associated node; if the target generator does not have an associated node, setting the operation status of the target generator to a shutdown state; if the target generator has an associated node, determining whether the generator has a third associated bus; if the target generator has at least one third associated bus, connecting the target generator to any one of the at least one third associated bus; wherein the output mode of the generator is adjusted according to the following steps: obtaining the first parameter corresponding to the generator according to the BPA data file of the power analysis system, wherein the first parameter includes: node type, terminal voltage, active power output level, and reactive power output level; adjusting the output mode of the generator to be consistent with the first parameter.

[0079] Figure 6 A schematic diagram of the generator mapping table according to an embodiment of this application is shown. Table 7 is based on... Figure 6 The obtained generator mapping table, in conjunction with Table 7, will be used to illustrate two processes for adjusting the generator's operating status and output mode based on the generator mapping table.

[0080] Adjust the generator's operating status. Based on Table 7, it can be determined that unit 1 in the second power grid model does not have a corresponding associated node. Therefore, the associated switches and disconnectors of the generator can be adjusted to set the operating status of unit 1 to a shutdown state. Figure 3 If unit 2 has an associated bus 1, then the relevant switches and disconnectors can be adjusted to connect unit 2 to the associated bus 1. In some embodiments, if based on Figure 3 If unit 2 has associated bus 1 and associated bus 2, then the relevant switches and disconnectors can be adjusted to connect unit 2 to associated bus 1 or associated bus 2. In other embodiments, if based on Figure 3 If Unit 2 has associated bus 1, associated bus 2 and associated bus 3, then the relevant switches and disconnectors can be adjusted to connect Unit 2 to associated bus 1, associated bus 2 or associated bus 3.

[0081] Table 7

[0082]

[0083]

[0084] Adjust the generator's output mode. The first parameters corresponding to the generator can be obtained from the BPA data file of the power analysis system. Specifically, in some embodiments, the first parameters corresponding to unit 3 can be obtained by querying the parameters corresponding to node information ID6 in the BPA data file. For example, the node type is PQ node, the terminal voltage is 300, the active power output level is 900, and the reactive power output level is 450. The node type of unit 3 can be adjusted to PQ node, the terminal voltage of unit 3 can be adjusted to 300, the active power output level of unit 3 can be adjusted to 900, and the reactive power output level of unit 3 can be adjusted to 450.

[0085] In other embodiments, if the nodes corresponding to both unit 3 and unit 4 are ID6, the output level of the nodes can be allocated proportionally according to the rated capacity of the units. Specifically, if the rated capacity ratio of unit 3 and unit 4 is 1:2, then the ratio of the output level allocated to unit 3 to the output level allocated to unit 4 is also 1:2.

[0086] In some embodiments of this application, in the above method, the conversion object includes: load, and the power grid model mapping table includes: load mapping table; adjusting the operation mode of at least one conversion object in the second power grid model according to the mapping relationship includes: adjusting the operation status and active and reactive power mode of the load based on the load mapping table, wherein the operation status of the load is adjusted according to the following steps: based on the load mapping table, determining whether there is an associated node for the target load in the second power grid model; if the target load does not have an associated node, setting the operation status of the target load to an outage state; if the target load has an associated node, determining whether there is a fourth associated bus for the target load; if the target load has at least one fourth associated bus, connecting the target load to any one of the at least one fourth associated bus; wherein the active and reactive power mode of the load is adjusted according to the following steps: obtaining the second parameter corresponding to the load according to the BPA data file of the power analysis system, wherein the second parameter includes: load active power level data and load reactive power level data; adjusting the active and reactive power mode of the load to be consistent with the second parameter.

[0087] Figure 7 Table 8 shows a schematic diagram of the structure of a load mapping table according to an embodiment provided in this application. Figure 7The obtained load mapping table, in conjunction with Table 8, will be used to illustrate two processes for adjusting the load's operating status and active and reactive power modes based on the load mapping table.

[0088] Adjust the operating status of the load. According to Table 8, if load 1 in the second power grid model does not have a corresponding associated node, then the switches and disconnectors associated with load 1 can be adjusted to set the operating status of load 1 to off-line. If load 2 has an associated bus 1, then the relevant switches and disconnectors can be adjusted to connect load 2 to associated bus 1. In some embodiments, if load 2 has associated bus 1 and associated bus 2, then the relevant switches and disconnectors can be adjusted to connect load 2 to associated bus 1 or associated bus 2. In other embodiments, if load 2 has associated bus 1, associated bus 2, and associated bus 3, then the relevant switches and disconnectors can be adjusted to connect load 2 to associated bus 1, associated bus 2, or associated bus 3.

[0089] Table 8

[0090]

[0091] Adjusting the active and reactive power of the load. The second parameter corresponding to the load can be obtained from the BPA data file of the power analysis system. Specifically, in some embodiments, the parameter corresponding to ID7 can be queried in the BPA data file to obtain the second parameter corresponding to load 2. For example, if the active power level of load 2 is 35 and the reactive power level is 20, the active power level of load 2 can be adjusted to 35, and the reactive power level of load 2 can be adjusted to 20. In other embodiments, if the nodes corresponding to units 3 and 4 are both ID6, the output level of the nodes can be allocated proportionally according to the rated capacity of the units. For example, if the rated capacity ratio of load 2 to load 3 is 1:2, then the ratio of the output level allocated to unit 2 to the output level allocated to unit 3 is also 1:2. In still other embodiments, when the substation has no load, a topology search can be performed on the training simulation platform to locate the loads connected to the medium and low voltage sides of the substation's main transformer, and the load nodes can be proportionally allocated to the loads connected to the substation.

[0092] In some embodiments of this application, in the above method, the conversion object includes: capacitive reactance, and the power grid model mapping table includes: a line mapping table; adjusting the operation mode of at least one conversion object in the second power grid model according to the mapping relationship includes: for parallel high-resistance lines, based on the third head node and the third tail node in the line mapping table, determining whether there is a high-resistance parameter data card corresponding to the parallel high-resistance line in the BPA data file of the power analysis system; if there is a high-resistance parameter data card corresponding to the parallel high-resistance line in the BPA data file, then setting the operation status of the parallel high-resistance line to the commissioning state; if there is no high-resistance parameter data card corresponding to the parallel high-resistance line in the BPA data file, then setting the operation status of the parallel high-resistance line to the shutdown state.

[0093] Parallel high-resistance lines can be selected from the training simulation system. Then, based on the third starting node and the third ending node in the line mapping table, it can be determined whether a high-resistance parameter data card corresponding to the parallel high-resistance line exists in the BPA data file of the power analysis system. In some embodiments, parallel high-resistance lines, such as line 2 in Table 5, can be selected from the training simulation system. By querying the parameters corresponding to the starting node ID1 and the ending node ID2 in the BPA data file of the power analysis system, it can be determined whether a high-resistance parameter data card corresponding to line 2 exists in the BPA data file of the power analysis system.

[0094] If the high-resistance parameter data card corresponding to Line 2 exists in the BPA data file, the associated switches and disconnectors can be adjusted to set the operating status of Line 2 to the commissioning state; if the high-resistance parameter data card corresponding to Line 2 does not exist in the BPA data file, the associated switches and disconnectors can be adjusted to set the operating status of Line 2 to the shutdown state.

[0095] In other embodiments, a topology search can be performed in the training simulation system to locate the main capacitors and main reactors connected to the low-voltage side bus of the main transformer. Then, based on the transformer mapping table, the corresponding node information is searched in the BPA data file. Next, based on the node's admittance reactive load, capacitor capacity, and reactor capacity, the capacitors and reactors are combined to calculate the capacitors and reactors that should be put into operation in the training simulation system. For example, it is calculated that capacitor 1 and reactor 1 are put into operation, while capacitor 2 and reactor 2 are stopped.

[0096] Figure 8 This diagram illustrates the structure of a parallel capacitive reactance mapping table according to one embodiment of the present application. In other embodiments, it can also be based on... Figure 8 Adjust the operation mode of capacitive reactance in the second power grid model, specifically based on... Figure 8Table 9 is obtained. The adjustment process of the capacitive reactance operation mode is explained below with reference to Table 9. Figure 9 If it can be determined that capacitive reactance 1 is associated with node 9 corresponding to ID9, then the relevant switches and disconnectors can be adjusted to set the operating status of capacitive reactance 1 to the operational state; if capacitive reactance 2 does not have a corresponding associated node, then the relevant switches and disconnectors can be adjusted to set the operating status of capacitive reactance 2 to the shutdown state.

[0097] Table 9

[0098]

[0099]

[0100] Figure 9 This illustration shows a first part of a flowchart of a model conversion method for a power analysis system and a simulation system according to another embodiment of this application. Figure 10 This illustrates a second part of the flowchart of a model conversion method for a power analysis system and a simulation system according to another embodiment of this application. Figure 9 and Figure 10 As can be seen, the model conversion method between the power analysis system and the simulation system in this embodiment includes the following steps S901-S934:

[0101] Step S901: Construct a power grid model mapping table, and construct multiple types of data cards for the first power grid model based on the BPA data file of the power analysis system.

[0102] Step S902: Read node information from multiple types of data cards.

[0103] Step S903: Update the read node information to the corresponding position in the power grid model mapping table to obtain the mapping relationship.

[0104] Step S904: Based on the bus mapping table, determine whether there are associated nodes for the target bus in the second power grid model. If yes, proceed to step S905; otherwise, proceed to step S906.

[0105] Step S905: Set the operating status of the target busbar to the commissioning status.

[0106] Step S906: Set the operating status of the target bus to the shutdown status.

[0107] Step S907: Determine whether there is at least one other busbar with the same associated node as the target busbar. If yes, proceed to step S908; otherwise, proceed to step S909.

[0108] Step S908: Set the operating status of the target bus and at least one other bus to parallel operating status.

[0109] Step S909: Based on the line mapping table, determine whether the target line in the second power grid model has a first starting node and a first ending node. If yes, proceed to step S911; otherwise, proceed to step S910.

[0110] Step S910: Set the operating status of the target line to the outage state.

[0111] Step S911: Determine whether there is a first associated bus between the first starting node and the first ending node of the target line. If yes, proceed to step S912; otherwise, proceed to step S913.

[0112] Step S912: Connect the target line to any one of at least one first associated bus.

[0113] Step S913: Based on the transformer mapping table, determine whether there is a second start node and a second end node in each winding of the target transformer in the second power grid model. If yes, proceed to step S915; otherwise, proceed to step S914.

[0114] Step S914: Set the operating status of the target transformer to the shutdown state.

[0115] Step S915: Determine whether there is a second associated busbar on each side of the target transformer winding. If yes, proceed to step S916; otherwise, proceed to step S917.

[0116] Step S916: Connect each winding of the target transformer to any one of at least one second associated busbar.

[0117] Step S917: Obtain the rated voltage data and tap type data of each winding of the target transformer.

[0118] Step S918: Based on the BPA data file of the power analysis system, the second start node and the second end node, obtain the node tap position data of each winding of the target transformer.

[0119] Step S919: Adjust the tap data of each winding of the target transformer according to the tap position data, the deviation of the rated voltage, and the tap type data.

[0120] Step S920: Based on the generator mapping table, determine whether there are associated nodes for the target generator in the second power grid model. If yes, proceed to step S922; otherwise, proceed to step S921.

[0121] Step S921: Set the operating status of the target generator to the shutdown state.

[0122] Step S922: Determine whether the target generator has a third associated bus. If yes, proceed to step S923; otherwise, proceed to step S924.

[0123] Step S923: Connect the target generator to any one of at least one third associated bus.

[0124] Step S924: Obtain the first parameter corresponding to the target generator based on the BPA data file of the power analysis system.

[0125] Step S925: Adjust the output mode of the target generator to match the first parameter.

[0126] Step S926: Based on the load mapping table, determine whether there are associated nodes for the target load in the second power grid model. If yes, proceed to step S928; otherwise, proceed to step S927.

[0127] Step S927: Set the operating status of the target load to the shutdown status.

[0128] Step S928: Determine whether the target load has a fourth associated bus. If yes, proceed to step S929; otherwise, proceed to step S930.

[0129] Step S929: Connect the target load to any one of at least one fourth associated bus.

[0130] Step S930: Obtain the second parameter corresponding to the target load based on the BPA data file of the power analysis system.

[0131] Step S931: Adjust the active and reactive power mode of the target load to be consistent with the second parameter.

[0132] Step S932: For parallel high-resistance lines, based on the third starting node and the third ending node in the line mapping table, determine whether there is a high-resistance parameter data card corresponding to the parallel high-resistance line in the BPA data file of the power analysis system. If yes, proceed to step S933; otherwise, proceed to step S934.

[0133] Step S933: Set the operating status of the parallel high-resistance line to the commissioning status.

[0134] Step S934: Set the operating status of the parallel high-resistance line to the off state.

[0135] Figure 11 A schematic diagram of a model conversion device for a power analysis system and a simulation system according to an embodiment of this application is shown. The device 1100 includes a construction unit 1101 and an adjustment unit 1102, wherein:

[0136] Construction unit 1101 is used to construct the mapping relationship between the first power grid model of the power analysis system and the second power grid model of the simulation system;

[0137] The adjustment unit 1102 is used to adjust the operation mode of at least one conversion object in the second power grid model according to the mapping relationship.

[0138] In some embodiments of this application, in the above-described apparatus, the construction unit 1101 is used to construct a power grid model mapping table, and to construct multiple types of data cards for the first power grid model based on the BPA data file of the power analysis system; read node information from the multiple types of data cards; and update the read node information to the corresponding position in the power grid model mapping table to obtain the mapping relationship.

[0139] In some embodiments of this application, in the above-described apparatus, the conversion object includes a bus, and the power grid model mapping table includes a bus mapping table; the adjustment unit 1102 is used to determine, based on the bus mapping table, whether there is an associated node for the target bus in the second power grid model; if the target bus has an associated node, the operating state of the target bus is set to the commissioning state; if the target bus does not have an associated node, the operating state of the target bus is set to the shutdown state; if the target bus has the same associated node as at least one other bus, the operating states of the target bus and the at least one other bus are set to the parallel operating state.

[0140] In some embodiments of this application, in the above-described apparatus, the conversion object includes: a line; the power grid model mapping table includes: a line mapping table; the adjustment unit 1102 is used to determine, based on the line mapping table, whether the target line in the second power grid model has a first starting node and a first ending node; if the target line does not have the first starting node and the first ending node, then the operating state of the target line is set to a shutdown state; if the target line has the first starting node and the first ending node, then it is determined whether the first starting node and the first ending node of the target line have a first associated bus; if the first starting node and the first ending node of the target line have at least one first associated bus, then the target line is connected to any one of the at least one first associated bus.

[0141] In some embodiments of this application, in the above-described apparatus, the conversion object includes a transformer, and the power grid model mapping table includes a transformer mapping table; the adjustment unit 1102 is used to adjust the operating state and tap position of the transformer based on the transformer mapping table, wherein the operating state of the transformer is adjusted according to the following steps: based on the transformer mapping table, determining whether there is a second starting node and a second ending node in each winding of the target transformer in the second power grid model; if there is no second starting node and a second ending node in each winding of the target transformer, then setting the operating state of the target transformer to a shutdown state; if there is a second starting node and a second ending node in each winding of the target transformer... Then, it is determined whether there is a second associated busbar for each winding of the target transformer; if there is at least one second associated busbar for each winding of the target transformer, then each winding of the target transformer is connected to any one of the at least one second associated busbar; wherein, the tap position of the transformer is adjusted according to the following steps: obtaining the rated voltage data and tap position type data of each winding of the target transformer; based on the BPA data file of the power analysis system, according to the second start node and the second end node, obtaining the node tap position data of each winding of the target transformer; adjusting the tap position data of each winding of the target transformer according to the node tap position data, the deviation of the rated voltage, and the tap position type data.

[0142] In some embodiments of this application, in the above-described apparatus, the conversion object includes a generator, and the power grid model mapping table includes a generator mapping table; the adjustment unit 1102 is used to adjust the operating state and output mode of the generator based on the generator mapping table, wherein the operating state of the generator is adjusted according to the following steps: based on the generator mapping table, determining whether the target generator in the second power grid model has an associated node; if the target generator does not have an associated node, setting the operating state of the target generator to a shutdown state; if the target generator has an associated node, determining whether the generator has a third associated bus; if the target generator has at least one third associated bus, connecting the target generator to any one of the at least one third associated bus; wherein the output mode of the generator is adjusted according to the following steps: obtaining the first parameter corresponding to the target generator according to the BPA data file of the power analysis system, wherein the first parameter includes: node type, terminal voltage, active power output level, and reactive power output level; adjusting the output mode of the target generator to be consistent with the first parameter.

[0143] In some embodiments of this application, in the above-described apparatus, the conversion object includes a load, and the power grid model mapping table includes a load mapping table; the adjustment unit 1102 is used to adjust the operating status and active and reactive power mode of the load based on the load mapping table, wherein the operating status of the load is adjusted according to the following steps: based on the load mapping table, determining whether there is an associated node for the target load in the second power grid model; if the target load does not have an associated node, setting the operating status of the target load to an outage state; if the target load has an associated node, determining whether there is a fourth associated bus for the target load; if the target load has at least one fourth associated bus, connecting the target load to any one of the at least one fourth associated bus; wherein the active and reactive power mode of the load is adjusted according to the following steps: obtaining a second parameter corresponding to the target load based on the BPA data file of the power analysis system, wherein the second parameter includes: load active power level data and load reactive power level data; adjusting the active and reactive power mode of the target load to be consistent with the second parameter.

[0144] In some embodiments of this application, in the above-described apparatus, the conversion object includes capacitive reactance, and the power grid model mapping table includes a line mapping table; the adjustment unit 1102 is used to determine, for parallel high-resistance lines, whether a high-resistance parameter data card corresponding to the parallel high-resistance line exists in the BPA data file of the power analysis system based on the third starting node and the third ending node in the line mapping table; if a high-resistance parameter data card corresponding to the parallel high-resistance line exists in the BPA data file, the operating status of the parallel high-resistance line is set to the commissioning state; if a high-resistance parameter data card corresponding to the parallel high-resistance line does not exist in the BPA data file, the operating status of the parallel high-resistance line is set to the shutdown state.

[0145] It should be noted that the model conversion device of any of the above power analysis systems and simulation systems can realize the aforementioned model conversion method of power analysis systems and simulation systems one by one, which will not be elaborated here.

[0146] Figure 12 A schematic diagram of the structure of an electronic device provided in an embodiment of this application is shown. Figure 12 As shown, at the hardware level, this electronic device includes a processor, and optionally also includes an internal bus, a network interface, and memory. The memory may include main memory, such as high-speed random-access memory (RAM), or it may include non-volatile memory, such as at least one disk drive. Of course, this electronic device may also include other hardware required for other business operations.

[0147] The processor, network interface, and memory can be interconnected via an internal bus, which can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 12 The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0148] Memory is used to store programs. Specifically, programs may include program code, which includes computer operation instructions. Memory may include main memory and non-volatile memory, and provides instructions and data to the processor.

[0149] The processor reads the corresponding computer program from non-volatile memory into main memory and then runs it, forming a model conversion device between the power analysis system and the simulation system at the logical level. The processor executes the program stored in memory and specifically performs the aforementioned methods.

[0150] The processor may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above method.

[0151] This electronic device can execute the model conversion method between the power analysis system and the simulation system provided in several embodiments of this application, and is implemented as a model conversion device between the power analysis system and the simulation system. Figure 11 The functions of the embodiments shown are not described in detail here.

[0152] This application also proposes a computer-readable storage medium that stores one or more programs, the programs including instructions that, when executed by an electronic device including multiple applications, enable the electronic device to perform the model conversion method for the power analysis system and simulation system provided in several embodiments of this application.

[0153] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0154] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0155] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0156] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0157] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0158] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0159] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0160] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0161] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0162] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A model conversion method of a power analysis system and a simulation system, characterized by, include: A mapping relationship is constructed between the first power grid model of the power analysis system and the second power grid model of the simulation system; wherein, the power analysis system is the power grid system in the power system analysis software; constructing the mapping relationship includes: constructing a power grid model mapping table, and constructing multiple types of data cards for the first power grid model based on the BPA data file of the power analysis system, reading the node information in the multiple types of data cards, and updating the read node information to the corresponding position in the power grid model mapping table; the power grid model mapping table includes: a node substation mapping table, a bus mapping table, a line mapping table, a transformer mapping table, a generator mapping table, a load mapping table, and a parallel capacitive reactance mapping table; Based on the mapping relationship, the operating mode of at least one conversion object in the second power grid model is adjusted; wherein, the conversion object includes at least one of bus, line, transformer, generator, load and capacitive reactance; the operating mode includes at least one of the following: commissioning status, connection relationship with the power grid, and equipment configuration parameters; The conversion object includes a busbar, and the power grid model mapping table includes a busbar mapping table. Adjusting the operation mode of at least one conversion object in the second power grid model according to the mapping relationship includes: determining whether a target busbar in the second power grid model has associated nodes based on the busbar mapping table; if the target busbar has associated nodes, setting the target busbar's operation status to "in operation"; if the target busbar does not have associated nodes, setting the target busbar's operation status to "out operation"; if the target busbar has the same associated node as at least one other busbar, setting the target busbar and the at least one other busbar's operation status to "parallel operation". The conversion object includes a transformer, and the power grid model mapping table includes a transformer mapping table. Adjusting the operating mode of at least one conversion object in the second power grid model according to the mapping relationship includes: adjusting the operating state and tap position of the transformer based on the transformer mapping table, wherein the operating state of the transformer is adjusted according to the following steps: based on the transformer mapping table, determining whether there is a second starting node and a second ending node in each winding of the target transformer in the second power grid model; if there is no second starting node and a second ending node in each winding of the target transformer, then setting the operating state of the target transformer to a shutdown state; if there is a second starting node and a second ending node in each winding of the target transformer... If the target transformer has at least one second associated busbar, then the windings on each side of the target transformer are connected to any one of the at least one second associated busbar. The tap position of the transformer is adjusted according to the following steps: obtaining the rated voltage data and tap position type data of each winding of the target transformer; based on the BPA data file of the power analysis system, and according to the second first end node and the second last end node, obtaining the node tap position data of each winding of the target transformer; adjusting the tap position data of each winding of the target transformer according to the node tap position data, the rated voltage data, and the tap position type data. The conversion object includes capacitive reactance, and the power grid model mapping table includes a line mapping table. Adjusting the operating mode of at least one conversion object in the second power grid model according to the mapping relationship includes: for parallel high-resistance lines, based on the third starting node and the third ending node in the line mapping table, determining whether a high-resistance parameter data card corresponding to the parallel high-resistance line exists in the BPA data file of the power analysis system; if a high-resistance parameter data card corresponding to the parallel high-resistance line exists in the BPA data file, then setting the operating status of the parallel high-resistance line to the commissioning state; if a high-resistance parameter data card corresponding to the parallel high-resistance line does not exist in the BPA data file, then setting the operating status of the parallel high-resistance line to the shutdown state.

2. The method according to claim 1, characterized in that, The conversion object includes: lines; the power grid model mapping table includes: line mapping table. Adjusting the operation mode of at least one conversion object in the second power grid model according to the mapping relationship includes: Based on the line mapping table, determine whether the target line in the second power grid model has a first starting node and a first ending node; If the target line does not have the first starting node and the first ending node, then the operating status of the target line is set to the outage state. If the target line has the first starting node and the first ending node, then determine whether the first starting node and the first ending node of the target line have a first associated bus. If there is at least one first associated bus between the first starting node and the first ending node of the target line, then the target line is connected to any one of the at least one first associated bus.

3. The method according to claim 1, characterized in that, The conversion object includes: a generator; the power grid model mapping table includes: a generator mapping table. Adjusting the operation mode of at least one conversion object in the second power grid model according to the mapping relationship includes: Based on the generator mapping table, the operating status and output mode of the generator are adjusted, wherein the operating status of the generator is adjusted according to the following steps: Based on the generator mapping table, determine whether there are associated nodes for the target generator in the second power grid model; If the target generator has no associated node, then the operating status of the target generator is set to the shutdown state; If the target generator has associated nodes, then determine whether the target generator has a third associated bus. If the target generator has at least one third associated bus, then the target generator is connected to any one of the at least one third associated bus. The power output mode of the generator is adjusted according to the following steps: According to the BPA data file of the power analysis system, the first parameter corresponding to the target generator is obtained, wherein the first parameter includes: node type, generator terminal voltage, active power output level, and reactive power output level. Adjust the output mode of the target generator to match the first parameter.

4. The method according to claim 1, characterized in that, The conversion object includes: load; the power grid model mapping table includes: load mapping table. Adjusting the operation mode of at least one conversion object in the second power grid model according to the mapping relationship includes: Based on the load mapping table, the operating status and active / reactive power mode of the load are adjusted, wherein the operating status of the load is adjusted according to the following steps: Based on the load mapping table, determine whether there are associated nodes for the target load in the second power grid model; If the target load has no associated nodes, then the operating status of the target load is set to the shutdown state; If the target load has associated nodes, then determine whether the target load has a fourth associated bus. If the target load has at least one fourth associated bus, then the target load is connected to any one of the at least one fourth associated bus. The active and reactive power mode of the load is adjusted according to the following steps: According to the BPA data file of the power analysis system, the second parameter corresponding to the target load is obtained, wherein the second parameter includes: load active power level data and load reactive power level data; Adjust the active and reactive power mode of the target load to match the second parameter.

5. A model conversion device for power analysis systems and simulation systems, characterized in that, The device includes: A construction unit is used to construct the mapping relationship between the first power grid model of the power analysis system and the second power grid model of the simulation system; wherein, the power analysis system is the power grid system in the power system analysis software; the construction unit is specifically used to: construct a power grid model mapping table, and construct multiple types of data cards of the first power grid model according to the BPA data file of the power analysis system; read the node information in the multiple types of data cards; and update the read node information to the corresponding position in the power grid model mapping table; the power grid model mapping table includes: a node substation mapping table, a bus mapping table, a line mapping table, a transformer mapping table, a generator mapping table, a load mapping table, and a parallel capacitive reactance mapping table; An adjustment unit is configured to adjust the operating mode of at least one conversion object in the second power grid model according to the mapping relationship; wherein the conversion object includes at least one of bus, line, transformer, generator, load and capacitive reactance; the operating mode includes at least one of the following: commissioning status, connection relationship with the power grid, and equipment configuration parameters; The conversion object includes a busbar, and the power grid model mapping table includes a busbar mapping table. The adjustment unit is used to determine, based on the busbar mapping table, whether the target busbar in the second power grid model has associated nodes; if the target busbar has associated nodes, the operating status of the target busbar is set to the operational status; if the target busbar does not have associated nodes, the operating status of the target busbar is set to the shutdown status; if the target busbar has the same associated nodes as at least one other busbar, the operating status of the target busbar and the at least one other busbar is set to the parallel operation status. The conversion object includes a transformer, and the power grid model mapping table includes a transformer mapping table. The adjustment unit is used to adjust the operating status and tap position of the transformer based on the transformer mapping table. The operating status of the transformer is adjusted according to the following steps: based on the transformer mapping table, it is determined whether each winding of the target transformer in the second power grid model has a second starting node and a second ending node; if none of the windings of the target transformer has the second starting node and the second ending node, the operating status of the target transformer is set to a shutdown state; if each winding of the target transformer has the second starting node and the second ending node, the operating status of each winding of the target transformer is determined to be... Does the side winding have a second associated bus? If each side winding of the target transformer has at least one second associated bus, then connect each side winding of the target transformer to any one of the at least one second associated bus. The tap position of the transformer is adjusted according to the following steps: obtain the rated voltage data and tap position type data of each side winding of the target transformer; based on the BPA data file of the power analysis system, obtain the node tap position data of each side winding of the target transformer according to the second start node and the second end node; adjust the tap position data of each side winding of the target transformer according to the node tap position data, the deviation of the rated voltage, and the tap position type data. The conversion object includes capacitive reactance; the power grid model mapping table includes a line mapping table; the adjustment unit is used to determine, for parallel high-resistance lines, whether a high-resistance parameter data card corresponding to the parallel high-resistance line exists in the BPA data file of the power analysis system based on the third starting node and the third ending node in the line mapping table; if a high-resistance parameter data card corresponding to the parallel high-resistance line exists in the BPA data file, the operating status of the parallel high-resistance line is set to the commissioning state; if a high-resistance parameter data card corresponding to the parallel high-resistance line does not exist in the BPA data file, the operating status of the parallel high-resistance line is set to the shutdown state.

6. A computer-readable storage medium storing one or more programs, which, when executed by an electronic device including a plurality of applications, cause the electronic device to perform the steps of the model conversion method for a power analysis system and a simulation system according to any one of claims 1 to 4.

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