Main-distribution cooperative power grid deduction simulation method, apparatus and device, and storage medium

Abstract

The invention discloses a main and distribution cooperative power grid deduction simulation method, device and equipment and a storage medium. The method comprises the steps of obtaining a preset power grid deduction simulation model of a current power grid and a preset importance level of a distribution network load in a distribution network deduction simulation model, the preset power grid deduction simulation model comprises a main network deduction simulation model and a distribution network deduction simulation model, and the main network deduction simulation model and the distribution network deduction simulation model are indicated to perform information interaction to simulate the operation of the current power grid; and in the simulation process, when a power grid in the preset power grid deduction simulation model has a preset simulation fault, cutting off the distribution network load according to the preset importance level. According to the technical scheme provided by the embodiment of the invention, through information interaction between the main network deduction simulation model and the distribution network deduction simulation model, accurate control on the power grid load is realized, and the influence of load change on the main and distribution networks is deeply restored.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid simulation, and particularly to a main - distribution collaborative power grid deduction simulation method, device, equipment and storage medium. Background Art

[0002] At present, the power grid deduction simulation system can simulate the continuous change process of the power grid and the system conditions after various operations and faults by establishing a steady - state model of equipment consistent with the actual power system, so as to realize power flow and fault simulation of the power system.

[0003] With the access of a high proportion of distributed power sources, flexible loads and energy storage systems to the power grid, profound changes will occur in the power source structure, power grid form, load characteristics and operation characteristics of the power grid. The traditional passive distribution network is gradually transitioning to an active distribution network, and the power optimization characteristics of the power grid also change accordingly. The power optimization calculation of the main grid needs to consider the active and reactive power support of the distribution network, and the power optimization of the distribution network also requires the support of the main grid.

[0004] However, the existing power grid deduction simulation systems mainly build models and conduct simulations based on the power grid models above 10 kV of the main grid, and directly equivalent process the part below 10 kV into power grid loads. The traditional relatively independent simulation mode of the main and distribution networks cannot achieve precise control of loads in power grid simulation, thus unable to meet the current simulation requirements. Summary of the Invention

[0005] The present invention provides a main - distribution collaborative power grid deduction simulation method, device, equipment and storage medium to solve the problem that the current power grid simulation system cannot precisely control loads.

[0006] In the first aspect, the present invention provides a main - distribution collaborative power grid deduction simulation method, including:

[0007] Obtain a preset power grid deduction simulation model of the current power grid and a preset importance level of the distribution network load in the distribution network deduction simulation model, where the preset power grid deduction simulation model includes a main grid deduction simulation model and the distribution network deduction simulation model;

[0008] Simulate the operation of the current power grid by instructing the main grid deduction simulation model and the distribution network deduction simulation model to perform information interaction;

[0009] During the simulation, when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model, cut off the distribution network load according to the preset importance level.

[0010] In the second aspect, the present invention provides a main - distribution collaborative power grid deduction simulation device, including:

[0011] A data acquisition module, configured to acquire a preset power grid deduction simulation model of the current power grid and a preset importance level of the distribution network load in the distribution network deduction simulation model, wherein the preset power grid deduction simulation model includes a main network deduction simulation model and the distribution network deduction simulation model;

[0012] A simulation module, configured to simulate the operation of the current power grid by instructing the main network deduction simulation model and the distribution network deduction simulation model to perform information interaction;

[0013] A load shedding module, configured to, during the simulation, when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model, shed the distribution network load according to the preset importance level.

[0014] In a third aspect, the present invention provides an electronic device, which includes:

[0015] At least one processor;

[0016] And a memory communicatively connected to the at least one processor;

[0017] Wherein, the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the main and distribution collaborative power grid deduction simulation method in the first aspect above.

[0018] In a fourth aspect, the present invention provides a computer-readable storage medium, which stores computer instructions for causing a processor to implement the main and distribution collaborative power grid deduction simulation method in the first aspect above when executed.

[0019] The power grid deduction simulation solution provided by the present invention acquires a preset power grid deduction simulation model of the current power grid and a preset importance level of the distribution network load in the distribution network deduction simulation model, wherein the preset power grid deduction simulation model includes a main network deduction simulation model and the distribution network deduction simulation model, simulates the operation of the current power grid by instructing the main network deduction simulation model and the distribution network deduction simulation model to perform information interaction, and during the simulation, when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model, sheds the distribution network load according to the preset importance level. By adopting the above technical solution, the distribution network deduction simulation model is used to realize the refined expansion of the distribution network model in the traditional power grid deduction simulation model, and through the information interaction between the main network deduction simulation model and the distribution network deduction simulation model, the accurate control of the power grid load is realized, the influence of the load change on the main and distribution power grids is deeply restored, and the simulation effect is ensured.

[0020] It should be understood that the content described in this section is not intended to identify the key or important features of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become readily understood from the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 is a flowchart of a main - distribution collaborative power grid deduction and simulation method according to Embodiment 1 of the present invention;

[0023] Figure 2 is a flowchart of a main - distribution collaborative power grid deduction and simulation method according to Embodiment 2 of the present invention;

[0024] Figure 3 is a schematic structural diagram of a main - distribution collaborative power grid deduction and simulation device according to Embodiment 3 of the present invention;

[0025] Figure 4 is a schematic structural diagram of an electronic device according to Embodiment 4 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to enable those skilled in the art to better understand the solution of the present invention, the following clearly and completely describes the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In the description of the present invention, unless otherwise specified, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally means that the associated objects before and after are in an "or" relationship. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0028] Embodiment 1

[0029] Figure 1 A flowchart of a main and distribution collaborative power grid deduction and simulation method is provided for Embodiment 1 of the present invention. This embodiment is applicable to the situation of deducing and simulating the operation of the power grid. This method can be executed by a main and distribution collaborative power grid deduction and simulation device. The main and distribution collaborative power grid deduction and simulation device can be implemented in the form of hardware and / or software. The main and distribution collaborative power grid deduction and simulation device can be configured in an electronic device, and the electronic device can be composed of two or more physical entities or one physical entity.

[0030] As Figure 1 shown, a main and distribution collaborative power grid deduction and simulation method provided in Embodiment 1 of the present invention specifically includes the following steps:

[0031] S101. Obtain the preset power grid deduction and simulation model of the current power grid and the preset importance level of the distribution network load in the distribution network deduction and simulation model, where the preset power grid deduction and simulation model includes a main network deduction and simulation model and the distribution network deduction and simulation model.

[0032] In this embodiment, a power grid deduction simulation model of the current power grid can be pre-constructed. The power grid deduction simulation model can include a main grid deduction simulation model and a distribution network deduction simulation model. Determine the feeder range of the distribution network participating in the simulation in the current power grid, and then construct a distribution network deduction simulation model according to this range. For example, the distribution network deduction simulation model can be a refined simulation model of the 10 kV to 380 V side of the current power grid. The distribution network deduction simulation model can include distributed power sources, energy storage systems, and user loads. Before obtaining the preset importance level of the distribution network load, the distributable network loads that can be cut in the distribution network deduction simulation model can be preset, and then the preset importance level of the distribution network load can be set.

[0033] S102. By instructing the main grid deduction simulation model and the distribution network deduction simulation model to perform information interaction, simulate the operation of the current power grid.

[0034] In this embodiment, the interaction trigger conditions of the main grid deduction simulation model and the distribution network deduction simulation model can be preset. After the simulation of the current power grid starts, the first preset parameters (such as load values, etc.) in the main grid deduction simulation model and the second preset parameters (such as feeder power flow, etc.) in the distribution network deduction simulation model will not be actively adjusted. When the interaction trigger conditions are met, the main grid deduction simulation model will adjust the first preset parameters according to the data sent by the distribution network deduction simulation model, and the distribution network deduction simulation model will also adjust the second preset parameters according to the data sent by the main grid deduction simulation model.

[0035] S103. During the simulation, when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model, cut the distribution network load according to the preset importance level.

[0036] In this embodiment, during the simulation, if a preset simulation fault occurs in the main grid or the distribution network in the preset power grid deduction simulation model, the distribution network load can be cut according to the preset importance level to simulate the operation state of the current power grid when a fault occurs.

[0037] The main - distribution collaborative power grid deduction and simulation method provided by the embodiment of the present invention obtains a preset power grid deduction and simulation model of the current power grid and a preset importance level of the distribution network load in the distribution network deduction and simulation model. Among them, the preset power grid deduction and simulation model includes a main - network deduction and simulation model and the distribution network deduction and simulation model. By instructing the main - network deduction and simulation model and the distribution network deduction and simulation model to perform information interaction, the operation of the current power grid is simulated. During the simulation process, when a preset simulation fault occurs in the power grid in the preset power grid deduction and simulation model, the distribution network load is cut according to the preset importance level. The technical solution of the embodiment of the present invention realizes the refined expansion of the distribution network model in the traditional power grid deduction and simulation model by using the distribution network deduction and simulation model, and realizes the accurate control of the power grid load through the information interaction between the main - network deduction and simulation model and the distribution network deduction and simulation model, deeply restoring the impact of load changes on the main - distribution power grid and ensuring the simulation effect.

[0038] Optionally, the boundary of the distribution network deduction and simulation model is the outgoing side of the 10 - kV bus.

[0039] Specifically, the upper bound of the distribution network deduction and simulation model can be the outgoing side of the 10 - kV bus, and the lower bound can be the 380 - V user side.

[0040] Embodiment Two

[0041] Figure 2 It is a flowchart of a main - distribution collaborative power grid deduction and simulation method provided by the second embodiment of the present invention. The technical solution of the embodiment of the present invention is further optimized on the basis of the above - mentioned optional technical solutions, and gives a specific way to perform deduction and simulation on the operation of the power grid.

[0042] Optionally, the information interaction process between the main - network deduction and simulation model and the distribution network deduction and simulation model includes: instructing the distribution network deduction and simulation model to send power information to the main - network deduction and simulation model; instructing the main - network deduction and simulation model to adjust the load flow of the main - network deduction and simulation model and correct the bus voltage of a preset level according to the power information, and then send the corrected bus voltage to the distribution network deduction and simulation model; instructing the distribution network deduction and simulation model to correct the power flow distribution within the feeder range according to the bus voltage. The advantage of such a setting is that through the above - mentioned information interaction between the main - network deduction and simulation model and the distribution network deduction and simulation model, the main - distribution integrated power flow calculation is realized, so that the load control operation instruction issued by the main network is no longer in a black box, and the main - distribution integrated power grid deduction and simulation is more accurate and realistic, improving the main - distribution network simulation and deduction analysis ability.

[0043] Optionally, during the simulation, when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model, the distribution network load is cut according to the preset importance level, including: during the simulation, when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model, cutting the distribution network load of the first preset importance level; determining whether the power grid in the current preset power grid deduction simulation model meets the preset requirements, and if not, cutting the distribution network load of the second preset importance level, where the first preset importance level is lower than the second preset importance level. The advantage of this setting is that by gradually cutting the distribution network load according to the preset importance level, precise control of the load during the main and distribution network simulation process is achieved.

[0044] As Figure 2 shown, a main and distribution collaborative power grid deduction simulation method provided in Embodiment 2 of the present invention specifically includes the following steps:

[0045] S201. Obtain the preset power grid deduction simulation model of the current power grid and the preset importance level of the distribution network load in the distribution network deduction simulation model.

[0046] Optionally, the determination method of the preset power grid deduction simulation model includes:

[0047] Obtain the main network deduction simulation model and the distribution network deduction simulation model; splice the main network deduction simulation model and the distribution network deduction simulation model to obtain an initial power grid model; use the telemetry data of the main network deduction simulation model at the main and distribution boundary to align the measured data of the main network section power flow and the distribution network section power flow at the main and distribution boundary to obtain the power grid deduction simulation model, where the main and distribution boundary is the boundary between the main network deduction simulation model and the distribution network deduction simulation model, the main network section power flow is the section power flow of the main network deduction simulation model, and the distribution network section power flow is the section power flow of the distribution network deduction simulation model.

[0048] Specifically, a traditional main network deduction simulation model and a distribution network deduction simulation model can be obtained, and then these two models are spliced to obtain an initial power grid model. Usually, there may be deviations in the measured values of the main network section power flow and the distribution network section power flow of the initial power grid model at the main and distribution boundary, which will affect the simulation results. Therefore, based on the main network load, the telemetry data of the main network deduction simulation model at the main and distribution boundary can be used to align the measured data of the main network section power flow and the distribution network section power flow at the main and distribution boundary to obtain the power grid deduction simulation model. For example, by adjusting the load value of the 10kV outgoing line of the main network deduction simulation model, the input power flow of the feeder section of the distribution network deduction simulation model can be constrained to align the measured data.

[0049] Furthermore, the main network deduction simulation model and the distribution network deduction simulation model are spliced ​​to obtain an initial power grid model, including:

[0050] According to the mapping relationship between the main network boundary devices configured in the main network deduction simulation model and the distribution network boundary devices configured in the distribution network deduction simulation model, the main network deduction simulation model and the distribution network deduction simulation model are spliced ​​to obtain an initial power grid model.

[0051] Specifically, when splicing the main network simulation model and the distribution network simulation model, it is necessary to ensure that the main network boundary devices configured in the main network simulation model and the distribution network boundary devices configured in the distribution network simulation model are correctly mapped, that is, the main network boundary devices and the distribution network boundary devices should correspond one to one. After the splicing is completed, the main network simulation model and the distribution network simulation model share a set of boundary devices.

[0052] Furthermore, the telemetry data of the main grid deduction simulation model at the main distribution boundary is used to align the measured data of the main grid section flow and the distribution network section flow at the main distribution boundary to obtain the power grid deduction simulation model, including:

[0053] Instruct the main grid simulation model to send the telemetry data at the main-distribution boundary to the distribution network simulation model; instruct the distribution network simulation model to adjust the flow within the feeder range according to the telemetry data to obtain a power grid simulation model, wherein the main grid section flow and the distribution network section flow in the power grid simulation model are aligned with the measured data at the main-distribution boundary.

[0054] Specifically, since the (virtual) devices in the distribution network simulation model are usually distributed radially, the number of devices and the number of measurements are usually multiples of the main network simulation model. Taking into account the actual needs of power grid simulation and the efficiency of power flow calculation, the entire main grid and part of the distribution network are often used to calculate the main and distribution integrated power grid power flow. Therefore, it is necessary to predetermine the range of feeders participating in the simulation in the distribution network. The main network simulation model can be instructed to send the telemetry data at the main distribution boundary to the distribution network simulation model. The distribution network simulation model can use the received telemetry data as an input parameter to adjust the power flow within the feeder range to calculate the power flow distribution of the feeder segment, thereby aligning the measured data of the main network section power flow and the distribution network section power flow at the main distribution boundary to obtain a power grid simulation model.

[0055] S202: Instruct the distribution network deduction simulation model to send power information to the main network deduction simulation model.

[0056] Specifically, the simulation can be started using the main grid section power flow and the distribution grid section power flow. After starting the simulation, the load value of the main grid deduction simulation model is no longer actively adjusted, but is adjusted according to the power information (such as the active power value and reactive power value of the feeder) sent back by the distribution grid deduction simulation model. This can accurately reflect the actual situation of the load on the feeder connected to the outgoing line of the main grid. When the distribution grid deduction simulation model adjusts distributed power sources, energy storage systems, and user loads, the outgoing line load will also change accordingly, which will also affect the power flow distribution of the main grid deduction simulation model.

[0057] S203. Instruct the main grid deduction simulation model to adjust the load power flow of the main grid deduction simulation model according to the power information and correct the bus voltage of the preset level, and then send the corrected bus voltage to the distribution grid deduction simulation model.

[0058] S204. Instruct the distribution grid deduction simulation model to correct the power flow distribution within the feeder range according to the bus voltage.

[0059] Specifically, after the main grid deduction simulation model adjusts its own load power flow according to the power information, it can correct the 10kV bus voltage value according to the adjustment result of the load power flow, and send the adjusted bus line voltage to the distribution grid deduction simulation model in the form of telemetry. The distribution grid deduction simulation model can correct the feeder power flow distribution according to the bus line voltage to complete the power flow calculation of the distribution grid deduction simulation model. The above interaction process between the main grid deduction simulation model and the distribution grid deduction simulation model is the simulation process of the load change of the current power grid.

[0060] S205. During the simulation, when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model, cut off the distribution grid load of the first preset important level.

[0061] Specifically, the preset important level is used to represent the importance degree of users, which can include: very important, generally important, and average, etc. The preset important level and the corresponding active power value of the distribution grid load can be stored in the load list in advance, and the load list is input into the preset power grid deduction simulation model. The main grid deduction simulation model can screen out the distribution grid load of the first preset important level according to the information in the load list. The first preset important level can be the lowest important level, such as the first preset important level can be average. Among them, the amount of distribution grid load to be cut off should be less than or equal to the total load carried by the main transformer, and the alternative amount of distribution grid load that can be cut off should be greater than or equal to the amount of load to be cut off.

[0062] S206. Determine whether the power grid in the current preset power grid deduction simulation model meets the preset requirements. If not, execute step 207; if so, execute step 202.

[0063] Specifically, when the power grid in the current preset power grid deduction simulation model meets the preset requirements, it indicates that the power grid in the current preset power grid deduction simulation model is operating normally, and the main grid deduction simulation model and the distribution network deduction simulation model can be continued to be instructed to perform information interaction.

[0064] S207. Cut off the distribution network load of the second preset important level, where the first preset important level is lower than the second preset important level.

[0065] Specifically, if the power grid in the current preset power grid deduction simulation model does not meet the preset requirements, such as when the fault situation of the power grid has not been curbed, it means that the amount of load cut off is insufficient. At this time, it can automatically judge the load of the higher important level that is relatively close in value for cutting, and try to avoid cutting more loads. The cut-off distribution network load of the second preset important level can be the distribution network load of the general important level. If the power grid in the current preset power grid deduction simulation model still does not meet the preset requirements after cutting off the distribution network load of the second preset important level, the distribution network load of a higher important level can be continued to be cut off.

[0066] The main and distribution collaborative power grid deduction simulation method provided by the embodiments of the present invention realizes the integrated main and distribution power flow calculation through the information interaction between the above-mentioned main grid deduction simulation model and the distribution network deduction simulation model, so that the load control operation instructions issued by the main grid are no longer in a black box, and the integrated main and distribution power grid deduction simulation is more accurate and real, improving the simulation and deduction analysis ability of the main and distribution networks, and realizing the precise control of the load in the main and distribution network simulation process by gradually cutting off the distribution network load according to the preset important level.

[0067] Embodiment III

[0068] Figure 3 It is a structural schematic diagram of a main and distribution collaborative power grid deduction simulation device provided by Embodiment III of the present invention. As Figure 3 shown, the device includes: a data acquisition module 301, a simulation module 302, and a load cut-off module 303, where:

[0069] The data acquisition module is used to acquire the preset important level of the distribution network load in the preset power grid deduction simulation model of the current power grid and the distribution network deduction simulation model, where the preset power grid deduction simulation model includes a main grid deduction simulation model and the distribution network deduction simulation model;

[0070] The simulation module is used to simulate the operation of the current power grid by instructing the main grid deduction simulation model and the distribution network deduction simulation model to perform information interaction;

[0071] The load cut-off module is used to cut off the distribution network load according to the preset important level when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model during the simulation process.

[0072] The main - distribution collaborative power grid deduction and simulation device provided by the embodiment of the present invention realizes the refined expansion of the distribution network model in the traditional power grid deduction and simulation model by using the distribution network deduction and simulation model, and realizes the precise control of the power grid load through the information interaction between the main network deduction and simulation model and the distribution network deduction and simulation model, deeply restores the influence of load changes on the main - distribution power grid, and ensures the simulation effect.

[0073] Optionally, the determination method of the preset power grid deduction and simulation model includes: obtaining the main network deduction and simulation model and the distribution network deduction and simulation model; splicing the main network deduction and simulation model and the distribution network deduction and simulation model to obtain an initial power grid model; using the telemetry data of the main network deduction and simulation model at the main - distribution boundary to align the measured data of the main network section power flow and the distribution network section power flow at the main - distribution boundary to obtain the power grid deduction and simulation model, where the main - distribution boundary is the boundary between the main network deduction and simulation model and the distribution network deduction and simulation model, the main network section power flow is the section power flow of the main network deduction and simulation model, and the distribution network section power flow is the section power flow of the distribution network deduction and simulation model.

[0074] Further, the splicing of the main network deduction and simulation model and the distribution network deduction and simulation model to obtain an initial power grid model includes: splicing the main network deduction and simulation model and the distribution network deduction and simulation model according to the mapping relationship between the main network boundary equipment configured in the main network deduction and simulation model and the distribution network boundary equipment configured in the distribution network deduction and simulation model to obtain an initial power grid model.

[0075] Further, using the telemetry data of the main network deduction and simulation model at the main - distribution boundary to align the measured data of the main network section power flow and the distribution network section power flow at the main - distribution boundary to obtain the power grid deduction and simulation model includes: instructing the main network deduction and simulation model to send the telemetry data at the main - distribution boundary to the distribution network deduction and simulation model; instructing the distribution network deduction and simulation model to adjust the power flow within the feeder range according to the telemetry data to obtain the power grid deduction and simulation model, where the measured data of the main network section power flow and the distribution network section power flow in the power grid deduction and simulation model are aligned at the main - distribution boundary.

[0076] Optionally, the information interaction process between the main network deduction and simulation model and the distribution network deduction and simulation model includes: instructing the distribution network deduction and simulation model to send power information to the main network deduction and simulation model; instructing the main network deduction and simulation model to adjust the load power flow of the main network deduction and simulation model and correct the bus voltage of the preset level according to the power information, and then send the corrected bus voltage to the distribution network deduction and simulation model; instructing the distribution network deduction and simulation model to correct the power flow distribution within the feeder range according to the bus voltage.

[0077] Optionally, the load shedding module includes:

[0078] A first shedding unit, configured to shed the distribution network load of the first preset importance level when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model during the simulation process;

[0079] A second shedding unit, configured to determine whether the power grid in the current preset power grid deduction simulation model meets a preset requirement, and if not, shed the distribution network load of the second preset importance level, where the first preset importance level is lower than the second preset importance level.

[0080] Optionally, the boundary of the distribution network deduction simulation model includes the outgoing line end of the 10 kV bus.

[0081] The main and distribution collaborative power grid deduction simulation device provided by the embodiment of the present invention can execute the main and distribution collaborative power grid deduction simulation method provided by any embodiment of the present invention, and has the corresponding function modules and beneficial effects for executing the method.

[0082] Embodiment 4

[0083] Figure 4 FIG. shows a schematic structural diagram of an electronic device 40 that can be used to implement the embodiments of the present invention. The electronic device is intended to represent various forms of digital computers, such as, for example, a laptop computer, a desktop computer, a workbench, a personal digital assistant, a server, a blade server, a mainframe computer, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as, for example, a personal digital processor, a cellular phone, a smart phone, a wearable device (such as a helmet, glasses, a watch, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0084] As Figure 4 shown, the electronic device 40 includes at least one processor 41, and a memory communicatively connected to the at least one processor 41, such as a read-only memory (ROM) 42, a random access memory (RAM) 43, etc. The memory stores a computer program executable by the at least one processor. The processor 41 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 42 or the computer program loaded from the storage unit 48 into the random access memory (RAM) 43. In the RAM 43, various programs and data required for the operation of the electronic device 40 can also be stored. The processor 41, the ROM 42, and the RAM 43 are connected to each other through a bus 44. The input / output (I / O) interface 45 is also connected to the bus 44.

[0085] Multiple components in the electronic device 40 are connected to the I / O interface 45, including: an input unit 46, such as a keyboard, a mouse, etc.; an output unit 47, such as various types of displays, speakers, etc.; a storage unit 48, such as a disk, an optical disc, etc.; and a communication unit 49, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 49 allows the electronic device 40 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0086] The processor 41 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 41 include but are not limited to a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 41 executes the various methods and processes described above, such as the main and distribution coordinated power grid deduction and simulation method.

[0087] In some embodiments, the main and distribution coordinated power grid deduction and simulation method can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as the storage unit 48. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 40 via the ROM 42 and / or the communication unit 49. When the computer program is loaded into the RAM 43 and executed by the processor 41, one or more steps of the main and distribution coordinated power grid deduction and simulation method described above can be executed. Alternatively, in other embodiments, the processor 41 can be configured to execute the main and distribution coordinated power grid deduction and simulation method by any other suitable means (e.g., by means of firmware).

[0088] The various embodiments of the systems and technologies described above in this article can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special or general programmable processor, receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting the data and instructions to the storage system, the at least one input device, and the at least one output device.

[0089] A computer program for implementing the method of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing devices, such that when the computer programs are executed by the processor, the functions / operations specified in the flowchart and / or block diagram are implemented. The computer programs can be executed entirely on the machine, partially on the machine, partially on the machine as an independent software package and partially on a remote machine, or entirely on a remote machine or server.

[0090] The computer device provided above can be used to execute the main-distribution collaborative power grid deduction simulation method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

[0091] Embodiment Five

[0092] In the context of the present invention, a computer-readable storage medium can be a tangible medium, and the computer-executable instructions are used to execute the main-distribution collaborative power grid deduction simulation method when executed by a computer processor. The method includes:

[0093] Obtain a preset power grid deduction simulation model of the current power grid and a preset importance level of the distribution network load in the distribution network deduction simulation model, wherein the preset power grid deduction simulation model includes a main network deduction simulation model and the distribution network deduction simulation model;

[0094] Simulate the operation of the current power grid by instructing the main network deduction simulation model and the distribution network deduction simulation model to perform information interaction;

[0095] During the simulation process, when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model, cut off the distribution network load according to the preset importance level.

[0096] In the context of the present invention, a computer-readable storage medium can be a tangible medium, which can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium can be a machine-readable signal medium. More specific examples of the machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0097] The computer device provided above can be used to execute the main and distribution collaborative power grid deduction simulation method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

[0098] It should be noted that in the embodiments of the above main and distribution collaborative power grid deduction simulation device, the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of mutual distinction and do not limit the protection scope of the present invention.

[0099] Note that the above is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments. Without departing from the concept of the present invention, more other equivalent embodiments can be included, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A main distribution coordinated power grid simulation method, characterized in that: include: Obtaining a preset power grid deduction simulation model of the current power grid and a preset importance level of the distribution network load in the distribution network deduction simulation model, wherein the preset power grid deduction simulation model includes a main grid deduction simulation model and the distribution network deduction simulation model; By instructing the main network deduction simulation model and the distribution network deduction simulation model to exchange information, the operation of the current power grid is simulated; During the simulation process, when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model, the distribution network load is cut off according to the preset importance level.

2. The method according to claim 1, characterized in that The method for determining the preset power grid deduction simulation model includes: Obtain the main network simulation model and distribution network simulation model; The main network simulation model and the distribution network simulation model are combined to obtain an initial power grid model; The telemetry data of the main grid deduction and simulation model at the main-distribution boundary is used to align the measured data of the main grid section flow and the distribution network section flow at the main-distribution boundary to obtain a power grid deduction and simulation model, wherein the main-distribution boundary is the boundary between the main grid deduction and simulation model and the distribution network deduction and simulation model, the main grid section flow is the section flow of the main grid deduction and simulation model, and the distribution network section flow is the section flow of the distribution network deduction and simulation model.

3. The method according to claim 2, characterized in that The main network simulation model and the distribution network simulation model are spliced ​​to obtain an initial power grid model, including: According to the mapping relationship between the main network boundary devices configured in the main network deduction simulation model and the distribution network boundary devices configured in the distribution network deduction simulation model, the main network deduction simulation model and the distribution network deduction simulation model are spliced ​​to obtain an initial power grid model.

4. The method according to claim 2 or 3, characterized in that: The method uses the telemetry data of the main grid deduction simulation model at the main distribution boundary to align the measured data of the main grid section flow and the distribution grid section flow at the main distribution boundary to obtain the power grid deduction simulation model, including: Instructing the main network deduction and simulation model to send the telemetry data at the main distribution boundary to the distribution network deduction and simulation model; Instruct the distribution network deduction simulation model to adjust the flow within the feeder range according to the telemetry data to obtain a power grid deduction simulation model, wherein the main grid section flow and the distribution network section flow in the power grid deduction simulation model are aligned with the measured data at the main-distribution boundary.

5. The method according to claim 1, characterized in that The information interaction process between the main network deduction simulation model and the distribution network deduction simulation model includes: Instructing the distribution network deduction simulation model to send power information to the main network deduction simulation model; Instructing the main network deduction simulation model to adjust the load flow of the main network deduction simulation model according to the power information and correct the bus voltage of a preset level, and then sending the corrected bus voltage to the distribution network deduction simulation model; The distribution network simulation model is instructed to correct the power flow distribution within the feeder range according to the bus voltage.

6. The method according to claim 1, characterized in that In the simulation process, when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model, the distribution network load is cut off according to the preset importance level, including: During the simulation, when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model, a distribution network load of a first preset importance level is cut off; Determine whether the power grid in the current preset power grid deduction simulation model meets the preset requirements. If not, cut off the distribution network load of the second preset importance level, wherein the first preset importance level is lower than the second preset importance level.

7. The method according to claim 1, characterized in that The boundary of the distribution network simulation model includes the 10kV bus outlet terminal.

8. A main distribution coordinated power grid simulation device, characterized in that: include: A data acquisition module, used to obtain a preset power grid deduction simulation model of the current power grid and a preset importance level of the distribution network load in the distribution network deduction simulation model, wherein the preset power grid deduction simulation model includes a main grid deduction simulation model and the distribution network deduction simulation model; A simulation module, used to simulate the operation of the current power grid by instructing the main grid deduction simulation model and the distribution grid deduction simulation model to exchange information; The load shedding module is used to shear off the distribution network load according to the preset importance level when a preset simulation fault occurs in the power grid in the preset power grid deduction simulation model during the simulation process.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the main distribution coordinated power grid simulation method described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the main distribution coordinated power grid simulation method according to any one of claims 1 to 7 when executed.

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