A provincial power grid partition startup method, device, electronic equipment and storage medium

Abstract

The present invention discloses a provincial power grid partition startup method, device, electronic device and storage medium, which are used to solve the technical problem that extreme scenarios have a huge impact on the power system and are likely to cause huge losses. The present invention includes: obtaining power grid operation state simulation data of the power grid operation state of the current power grid; obtaining the provincial power grid partition of the current power grid, and obtaining the partition operation state simulation data of the partition operation state of the provincial power grid partition; obtaining the external attack fault set corresponding to the power grid operation state and the partition operation state; calculating the load loss cost of entering the partition operation state from the power grid operation state; calculating the comprehensive vulnerability index of the power grid operation state according to the external attack fault set and the power grid operation state simulation data; judging whether to start the provincial power grid partition to enter the partition operation state according to the comprehensive vulnerability index.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid partitioning, and in particular to a provincial power grid partitioning startup method, device, electronic equipment and storage medium. Background Art

[0002] In recent years, with the profound changes in the international and domestic situation and the accelerated transformation and upgrading of the energy structure, the power security situation has become increasingly severe and the risks have continued to increase. From the perspective of system development, the power industry has developed rapidly, the system structure is complex, and the installed capacity is large. As a result, the difficulty of grid regulation has increased, the installed capacity of new energy has grown rapidly, and there are plans for large-scale offshore wind power to be connected to the grid, which has brought new challenges to the safe and stable operation of the system, and the risk of large-scale power outages has always existed. From the perspective of the impact of natural disasters, in recent years, the domestic power grid has experienced severe natural disasters such as ice disasters and typhoons, which have seriously affected the power supply and endangered people's lives and property. With the emergence of new technologies, extreme scenarios such as cyber attacks, physical attacks, and electromagnetic pulse attacks will have a huge impact on the power system. Once a large-scale synchronous power grid suffers a major power outage, the losses caused will be far greater than those of a small-scale synchronous power grid. Summary of the invention

[0003] The present invention provides a provincial power grid partition startup method, device, electronic equipment and storage medium, which are used to solve the technical problem that extreme scenarios have a huge impact on the power system and are likely to cause huge losses.

[0004] The present invention provides a provincial power grid partition startup method, comprising:

[0005] Acquiring grid operation state simulation data of the grid operation state of the current grid;

[0006] Obtaining a provincial power grid partition of the current power grid, and obtaining partition operation status simulation data of the partition operation status of the provincial power grid partition;

[0007] Acquire an external attack fault set corresponding to the power grid operation state and the partition operation state;

[0008] Calculating the load loss cost of entering the partition operation state from the grid operation state;

[0009] Calculating a comprehensive vulnerability index of the power grid operation state according to the external attack fault set and the power grid operation state simulation data;

[0010] Whether to start the provincial power grid partition and enter the partition operation state is determined according to the comprehensive vulnerability index.

[0011] Optionally, the step of calculating the load loss cost of entering the partition operation state from the grid operation state includes:

[0012] Obtaining the active partition decoupling cost coefficient and the active partition decoupling AC section power when entering the partition operation state from the power grid operation state;

[0013] The product of the active partition decoupling cost coefficient and the active partition decoupling AC section power is calculated to obtain the load loss cost of entering the partition operation state from the power grid operation state.

[0014] Optionally, the external attack fault set includes multiple external attack faults; the step of calculating the comprehensive vulnerability index of the power grid operation state according to the external attack fault set and the load loss cost includes:

[0015] Calculating the load loss amount corresponding to each of the external attack faults;

[0016] The average value of the load loss corresponding to all the external attack faults is calculated to obtain a comprehensive vulnerability index of the power grid operation state.

[0017] Optionally, the step of judging whether to start the provincial power grid partition to enter the partition operation state according to the comprehensive vulnerability index includes:

[0018] Calculating a partition vulnerability index of the partition operation state according to the partition operation state simulation data;

[0019] Determining whether the sum of the partition vulnerability index and the load loss cost is less than the comprehensive vulnerability index;

[0020] If so, start the provincial power grid division and enter the division operation state.

[0021] The present invention also provides a provincial power grid partition starting device, comprising:

[0022] A power grid operation status simulation data acquisition module is used to acquire power grid operation status simulation data of the current power grid operation status;

[0023] A partition operation status simulation data acquisition module, used to acquire the provincial power grid partition of the current power grid, and acquire the partition operation status simulation data of the partition operation status of the provincial power grid partition;

[0024] An external attack fault set acquisition module, used to acquire an external attack fault set corresponding to the power grid operation state and the partition operation state;

[0025] A load loss cost calculation module, used to calculate the load loss cost of entering the partition operation state from the power grid operation state;

[0026] A comprehensive vulnerability index calculation module, used to calculate the comprehensive vulnerability index of the power grid operation state according to the external attack fault set and the power grid operation state simulation data;

[0027] A partition module is used to determine whether to start the provincial power grid partition and enter the partition operation state according to the comprehensive vulnerability index.

[0028] Optionally, the load loss cost calculation module includes:

[0029] An active partition decoupling cost coefficient and an active partition decoupling AC section power acquisition submodule, used to acquire the active partition decoupling cost coefficient and the active partition decoupling AC section power when entering the partition operation state from the power grid operation state;

[0030] The load loss cost calculation submodule is used to calculate the product of the active partition decoupling cost coefficient and the active partition decoupling AC section power to obtain the load loss cost of entering the partition operation state from the power grid operation state.

[0031] Optionally, the external attack fault set includes multiple external attack faults; and the comprehensive vulnerability index calculation module includes:

[0032] A load loss amount calculation submodule, used to calculate the load loss amount corresponding to each of the external attack faults;

[0033] The comprehensive vulnerability index calculation submodule is used to calculate the average value of the load loss corresponding to all the external attack faults to obtain the comprehensive vulnerability index of the power grid operation state.

[0034] Optionally, the partitioning module includes:

[0035] A partition vulnerability index calculation submodule, used to calculate the partition vulnerability index of the partition operation state according to the partition operation state simulation data;

[0036] A judgment submodule, used to judge whether the sum of the partition vulnerability index and the load loss cost is less than the comprehensive vulnerability index;

[0037] The partition submodule is used to start the provincial power grid partition and enter the partition operation state.

[0038] The present invention also provides an electronic device, the device comprising a processor and a memory:

[0039] The memory is used to store program code and transmit the program code to the processor;

[0040] The processor is used to execute the provincial power grid partition startup method as described in any one of the above items according to the instructions in the program code.

[0041] The present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium is used to store program code, and the program code is used to execute the provincial power grid partition startup method as described in any one of the above items.

[0042] It can be seen from the above technical scheme that the present invention has the following advantages: the present invention obtains the grid operation state simulation data of the current grid operation state; obtains the provincial grid partition of the current grid, and obtains the partition operation state simulation data of the partition operation state of the provincial grid partition; obtains the external attack fault set corresponding to the grid operation state; calculates the load loss cost of entering the partition operation state from the grid operation state; calculates the comprehensive vulnerability index of the grid operation state according to the external attack fault set and the load loss cost; and determines whether to start the provincial grid partition to enter the partition operation state according to the comprehensive vulnerability index. The impact of extreme scenarios on the power system is reduced, and the losses caused by extreme scenarios are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0044] Figure 1 A flowchart of the steps of a provincial power grid partition startup method provided by an embodiment of the present invention;

[0045] Figure 2 A flowchart of the steps of a provincial power grid partition startup method provided by another embodiment of the present invention;

[0046] Figure 3 A schematic diagram of a provincial power grid zoning operation provided by an embodiment of the present invention;

[0047] Figure 4 A structural block diagram of a provincial power grid partition starting device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0048] The embodiments of the present invention provide a provincial power grid partition startup method, device, electronic device and storage medium, which are used to solve the technical problem that extreme scenarios have a huge impact on the power system and are likely to cause huge losses.

[0049] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] See also Figure 1 , Figure 1 A flowchart of the steps of a provincial power grid partition startup method provided in an embodiment of the present invention.

[0051] The present invention provides a provincial power grid partition startup method, which may specifically include the following steps:

[0052] Step 101, obtaining grid operation state simulation data of the grid operation state of the current grid;

[0053] In an embodiment of the present invention, the power flow and topology of the current grid operation state of the grid can be obtained, and BPA (large-scale electromechanical transient simulation program for power systems) simulation data can be generated as grid operation state simulation data of the current grid operation state.

[0054] Step 102, obtaining the provincial power grid partition of the current power grid, and obtaining the partition operation status simulation data of the partition operation status of the provincial power grid partition;

[0055] In the embodiment of the present invention, the power grid may include several provincial power grid partitions, and each provincial power grid partition will have a corresponding partition operation state when operating independently. By simulating the operation of the provincial power grid partition, the partition operation state simulation data of the current partition operation state of the provincial power grid partition can be obtained.

[0056] Step 103, obtaining an external attack fault set corresponding to the power grid operation state and the partition operation state;

[0057] In extreme cases, the main forms of external attacks on the power grid include cyber attacks, electromagnetic attacks, graphite bomb attacks, and terrorist attacks. Cyber ​​attacks mainly use network intrusions to destroy and control power monitoring network systems, such as dispatching automation systems, relay protection, and safety and stability control systems. Electromagnetic attacks mainly release electromagnetic pulses through electromagnetic pulse bombs and other methods to damage the electronic components of the secondary equipment of the power grid. Graphite bomb attacks mainly cause short circuits in the primary equipment of the power grid by releasing conductive fiber nets, and terrorist attacks mainly cause damage to power facilities through violent destruction.

[0058] In specific implementation, the above external attacks may cause two serious fault forms to the power grid: station-wide voltage loss fault and transmission section line fault.

[0059] The external attack faults caused by the actual external attack on the power grid will affect the power grid operation status of the current power grid and the corresponding provincial power grid division operation status.

[0060] Step 104, calculating the load loss cost of entering the partition operation state from the grid operation state;

[0061] In actual scenarios, there is a cost to actively change the power grid from the grid operation state to the partition operation state of the provincial grid partition, and some load may be lost during the power balancing process.

[0062] In the embodiment of the present invention, it is necessary to calculate the load loss cost of the power grid entering the partition operation state from the power grid operation state.

[0063] Step 105, calculating a comprehensive vulnerability index of the power grid operation state according to the external attack fault set and the power grid operation state simulation data;

[0064] In the embodiment of the present invention, after the external attack fault set is obtained, the comprehensive vulnerability index of the power grid operation state can be calculated in combination with the power grid operation state simulation data.

[0065] Step 106, judging whether to start the provincial power grid partition and enter the partition operation state according to the comprehensive vulnerability index.

[0066] In the embodiment of the present invention, after the comprehensive vulnerability index is obtained, it can be determined whether to transfer the power grid operation state to the division operation state of the provincial power grid division according to the size of the comprehensive vulnerability index.

[0067] The present invention obtains the grid operation state simulation data of the grid operation state of the current grid; obtains the provincial grid partition of the current grid, and obtains the partition operation state simulation data of the partition operation state of the provincial grid partition; obtains the external attack fault set corresponding to the grid operation state; calculates the load loss cost of entering the partition operation state from the grid operation state; calculates the comprehensive vulnerability index of the grid operation state according to the external attack fault set and the load loss cost; and determines whether to start the provincial grid partition to enter the partition operation state according to the comprehensive vulnerability index. The impact of extreme scenarios on the power system is reduced, and the losses caused by extreme scenarios are reduced.

[0068] See also Figure 2 , Figure 2 A flowchart of a provincial power grid partition startup method provided by another embodiment of the present invention may specifically include:

[0069] Step 201, obtaining grid operation state simulation data of the grid operation state of the current grid;

[0070] In the embodiment of the present invention, the current grid operation status S of the grid can be obtained. i The power flow and topology structure are used to generate BPA (large-scale electromechanical transient simulation program for power systems) simulation data as the power grid operation status simulation data of the current power grid operation status.

[0071] Step 202, obtaining the provincial power grid partition of the current power grid, and obtaining the partition operation status simulation data of the partition operation status of the provincial power grid partition;

[0072] In the embodiment of the present invention, the provincial power grid can be divided into zones by planning the operation area in advance, disconnecting the relevant main connecting lines, and forming the zone operation state S′ of the provincial power grid zone. i , and obtain S′ i The partition operation status simulation data.

[0073] Step 203, obtaining an external attack fault set corresponding to the power grid operation state and the partition operation state;

[0074] In the embodiment of the present invention, external attack faults triggered by external attacks that lead to the formation of power grid operation states and partition operation states may be acquired to obtain an external attack fault set.

[0075] External attack failures record external attack failures caused by different external attacks.

[0076] Step 204, obtaining the active partition decoupling cost coefficient and the active partition decoupling AC section power when the grid operation state enters the partition operation state;

[0077] Step 205, calculating the product of the active partition decoupling cost coefficient and the active partition decoupling AC section power, and obtaining the load loss cost of entering the partition operation state from the grid operation state;

[0078] In actual scenarios, there is a cost to actively change the power grid from the grid operation state to the partition operation state of the provincial grid partition, and some load may be lost during the power balancing process.

[0079] In the embodiment of the present invention, it is necessary to calculate the load loss cost of the power grid entering the partition operation state from the power grid operation state.

[0080] In the specific implementation, the load loss cost of the power grid entering the partition operation state from the power grid operation state can be calculated by the following formula: i :

[0081] Price i =αP tie

[0082] Among them, α is the active partition decomposition cost coefficient; P tie To actively partition and decouple the AC section power.

[0083] Step 206, calculating a comprehensive vulnerability index of the power grid operation state according to the external attack fault set and the power grid operation state simulation data;

[0084] In the embodiment of the present invention, after the external attack fault set is obtained, the comprehensive vulnerability index of the power grid operation state can be calculated in combination with the power grid operation state simulation data.

[0085] In one example, the external attack fault set includes multiple external attack faults; the step of calculating the comprehensive vulnerability index of the power grid operation state according to the external attack fault set and the load loss cost may include the following sub-steps:

[0086] S61, calculating the load loss amount corresponding to each external attack fault;

[0087] S62, calculating the average value of the load loss corresponding to all external attack faults to obtain a comprehensive vulnerability index of the power grid operation state.

[0088] In the specific implementation, the comprehensive vulnerability index of the power grid under attack can be evaluated by the power grid load loss. i , the set of external attack faults is A i ={A i1 ,A i2 ,……A im}, fault A occurs i1 When the corresponding load loss is PL i1 , then the current operating state of the power grid is S i The corresponding load loss is PL i = {PL i1 ,PL i2 ,……PL im}.

[0089] Considering that important users are high-value targets of external attacks, which are intentional and targeted, the grid operation state S is defined as i The comprehensive vulnerability index is the external attack fault set A i The corresponding average value of the three faults with the largest load loss is:

[0090]

[0091] Among them, ΔS i is the grid operation status S i Comprehensive vulnerability index, MAX1(PLi ) represents the array PL i The maximum value of MAX2(PL i ) represents the array PL i The second largest value; MAX3(PL i ) represents the array PL i The third largest value of .

[0092] Among them, the load loss amount can be calculated based on the simulation data of the power grid operation status.

[0093] Step 207, judging whether to start the provincial power grid partition and enter the partition operation state according to the comprehensive vulnerability index.

[0094] In the embodiment of the present invention, after the comprehensive vulnerability index is obtained, it can be determined whether to transfer the power grid operation state to the division operation state of the provincial power grid division according to the size of the comprehensive vulnerability index.

[0095] In one example, step 207 may include the following sub-steps:

[0096] S71, calculating a partition vulnerability index of the partition operation state according to the partition operation state simulation data;

[0097] S72, determining whether the sum of the partition vulnerability index and the load loss cost is less than the comprehensive vulnerability index;

[0098] S73, if yes, start the provincial power grid division and enter the division operation state.

[0099] In the embodiment of the present invention, the partition vulnerability index of the provincial power grid partition can be calculated in the same way as the comprehensive vulnerability index of the power grid. Then, it is determined whether the sum of the partition vulnerability index and the load loss cost is less than the comprehensive vulnerability index to determine whether to transfer the power grid from the power grid operation state to the partition operation state.

[0100] In the specific implementation, when the following conditions are met, active disconnection measures can be initiated to make the power grid enter the provincial power grid division power grid operation state from the power grid operation state.

[0101] ΔS′ i +Price i <ΔS i

[0102] That is, when the partition running state S′ i The average load loss of the three most serious faults in the external attack fault set + load loss cost < the current synchronized power grid operation state S i When the average load loss is caused by the three most serious faults in the external attack fault set, it is recommended to take active partitioning measures.

[0103] The present invention obtains the grid operation state simulation data of the grid operation state of the current grid; obtains the provincial grid partition of the current grid, and obtains the partition operation state simulation data of the partition operation state of the provincial grid partition; obtains the external attack fault set corresponding to the grid operation state; calculates the load loss cost of entering the partition operation state from the grid operation state; calculates the comprehensive vulnerability index of the grid operation state according to the external attack fault set and the load loss cost; and determines whether to start the provincial grid partition to enter the partition operation state according to the comprehensive vulnerability index. The impact of extreme scenarios on the power system is reduced, and the losses caused by extreme scenarios are reduced.

[0104] For ease of understanding, the embodiments of the present invention are described below by using specific examples:

[0105] See also Figure 3 , Figure 3 A schematic diagram of the operation of a provincial power grid division is provided for an embodiment of the present invention.

[0106] Assume that there is an operating state S1. Operating state S1 is formed when the full wiring mode S0 is attacked externally, resulting in the tripping of a certain AC double line. At this time, the power of the main interconnection lines of the two provincial grid areas is about 5000MW. Operating state S2 is formed when the operating state S1 is attacked externally again, resulting in the tripping of another AC interconnection line. At this time, the power of the active partition-decoupled AC section is about 5000MW.

[0107] The set of external attack faults that are strongly correlated with this area is:

[0108] A1=A2={A 11 , A 12 , A 13 , A 14, , A 15 , A 16 ……}

[0109] The calculation results are shown in Table 1 below:

[0110]

[0111] Table 1

[0112] Analysis of calculation results:

[0113] 1) Considering active disconnection after the operation mode is adjusted, the load loss cost Price1 = αP tie It is 0.5*5000MW=2500MW.

[0114] 2) For the operating state S1, the corresponding ΔS1=444MW, ΔS′1+αP tie=3840MW>ΔS1=444MW. Therefore, it is not recommended to take active disconnection measures.

[0115] 3) For the operating state S2, the corresponding ΔS2=7994MW, ΔS′2+αP tie =3840MW<ΔS2=7994MW. Therefore, for the operation state S2, the output of the units in the area should be adjusted as soon as possible, the load in the area should be controlled, the power of the external interconnection line should be controlled to be basically zero, and active disconnection should be implemented to avoid the next attack causing a large loss of system load.

[0116] See also Figure 4 , Figure 4 A structural block diagram of a provincial power grid partition starting device provided in an embodiment of the present invention.

[0117] The embodiment of the present invention provides a provincial power grid zone starting device, comprising:

[0118] A power grid operation state simulation data acquisition module 401 is used to acquire power grid operation state simulation data of the power grid operation state of the current power grid;

[0119] The partition operation status simulation data acquisition module 402 is used to acquire the provincial power grid partition of the current power grid and acquire the partition operation status simulation data of the partition operation status of the provincial power grid partition;

[0120] The external attack fault set acquisition module 403 is used to acquire the external attack fault set corresponding to the power grid operation state and the partition operation state;

[0121] A load loss cost calculation module 404, used to calculate the load loss cost of entering a partition operation state from a grid operation state;

[0122] A comprehensive vulnerability index calculation module 405 is used to calculate the comprehensive vulnerability index of the power grid operation state according to the external attack fault set and the power grid operation state simulation data;

[0123] The partition module 406 is used to determine whether to start the provincial power grid partition and enter the partition operation state according to the comprehensive vulnerability index.

[0124] In the embodiment of the present invention, the load loss cost calculation module 404 includes:

[0125] Active partition decoupling cost coefficient and active partition decoupling AC section power acquisition submodule, used to obtain the active partition decoupling cost coefficient and active partition decoupling AC section power when entering the partition operation state from the power grid operation state;

[0126] The load loss cost calculation submodule is used to calculate the product of the active partition decoupling cost coefficient and the active partition decoupling AC section power to obtain the load loss cost of entering the partition operation state from the power grid operation state.

[0127] In the embodiment of the present invention, the external attack fault set includes multiple external attack faults; the comprehensive vulnerability index calculation module 405 includes:

[0128] A load loss calculation submodule is used to calculate the load loss corresponding to each external attack fault;

[0129] The comprehensive vulnerability index calculation submodule is used to calculate the average value of the load loss corresponding to all external attack faults to obtain the comprehensive vulnerability index of the power grid operation status.

[0130] In the embodiment of the present invention, the partition module 406 includes:

[0131] A partition vulnerability index calculation submodule is used to calculate the partition vulnerability index of the partition operation state according to the partition operation state simulation data;

[0132] A judgment submodule is used to judge whether the sum of the partition vulnerability index and the load loss cost is less than the comprehensive vulnerability index;

[0133] The partition submodule is used to start the provincial power grid partition and enter the partition operation state.

[0134] An embodiment of the present invention further provides an electronic device, the device comprising a processor and a memory:

[0135] The memory is used to store the program code and transmit the program code to the processor;

[0136] The processor is used to execute the provincial power grid partition startup method of the embodiment of the present invention according to the instructions in the program code.

[0137] An embodiment of the present invention further provides a computer-readable storage medium, which is used to store program code, and the program code is used to execute the provincial power grid partition startup method of the embodiment of the present invention.

[0138] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0139] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0140] It will be appreciated by those skilled in the art that the embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0141] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0142] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0143] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0144] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0145] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0146] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A provincial power grid partition startup method, characterized in that: include: Acquiring grid operation state simulation data of the grid operation state of the current grid; Obtaining a provincial power grid partition of the current power grid, and obtaining partition operation status simulation data of the partition operation status of the provincial power grid partition; Acquire an external attack fault set corresponding to the power grid operation state and the partition operation state; Calculating the load loss cost of entering the partition operation state from the grid operation state; Calculating a comprehensive vulnerability index of the power grid operation state according to the external attack fault set and the power grid operation state simulation data; Whether to start the provincial power grid partition and enter the partition operation state is determined according to the comprehensive vulnerability index.

2. The method according to claim 1, characterized in that The step of calculating the load loss cost of entering the partition operation state from the grid operation state comprises: Obtaining the active partition decoupling cost coefficient and the active partition decoupling AC section power when entering the partition operation state from the power grid operation state; The product of the active partition decoupling cost coefficient and the active partition decoupling AC section power is calculated to obtain the load loss cost of entering the partition operation state from the power grid operation state.

3. The method according to claim 1, characterized in that The external attack fault set includes multiple external attack faults; the step of calculating the comprehensive vulnerability index of the power grid operation state according to the external attack fault set and the load loss cost includes: Calculating the load loss amount corresponding to each of the external attack faults; The average value of the load loss corresponding to all the external attack faults is calculated to obtain a comprehensive vulnerability index of the power grid operation state.

4. The method according to claim 1, characterized in that The step of judging whether to start the provincial power grid partition to enter the partition operation state according to the comprehensive vulnerability index includes: Calculating a partition vulnerability index of the partition operation state according to the partition operation state simulation data; Determining whether the sum of the partition vulnerability index and the load loss cost is less than the comprehensive vulnerability index; If so, start the provincial power grid division and enter the division operation state.

5. A provincial power grid partition starting device, characterized in that: include: A power grid operation status simulation data acquisition module is used to acquire power grid operation status simulation data of the current power grid operation status; A partition operation status simulation data acquisition module, used to acquire the provincial power grid partition of the current power grid, and acquire the partition operation status simulation data of the partition operation status of the provincial power grid partition; An external attack fault set acquisition module, used to acquire an external attack fault set corresponding to the power grid operation state and the partition operation state; A load loss cost calculation module, used to calculate the load loss cost of entering the partition operation state from the power grid operation state; A comprehensive vulnerability index calculation module, used to calculate the comprehensive vulnerability index of the power grid operation state according to the external attack fault set and the power grid operation state simulation data; A partition module is used to determine whether to start the provincial power grid partition and enter the partition operation state according to the comprehensive vulnerability index.

6. The device according to claim 5, characterized in that The load loss cost calculation module includes: An active partition decoupling cost coefficient and an active partition decoupling AC section power acquisition submodule, used to acquire the active partition decoupling cost coefficient and the active partition decoupling AC section power when entering the partition operation state from the power grid operation state; The load loss cost calculation submodule is used to calculate the product of the active partition decoupling cost coefficient and the active partition decoupling AC section power to obtain the load loss cost of entering the partition operation state from the power grid operation state.

7. The device according to claim 5, characterized in that The external attack fault set includes multiple external attack faults; the comprehensive vulnerability index calculation module includes: A load loss amount calculation submodule, used to calculate the load loss amount corresponding to each of the external attack faults; The comprehensive vulnerability index calculation submodule is used to calculate the average value of the load loss corresponding to all the external attack faults to obtain the comprehensive vulnerability index of the power grid operation state.

8. The device according to claim 5, characterized in that The partition module comprises: A partition vulnerability index calculation submodule, used to calculate the partition vulnerability index of the partition operation state according to the partition operation state simulation data; A judgment submodule, used to judge whether the sum of the partition vulnerability index and the load loss cost is less than the comprehensive vulnerability index; The partition submodule is used to start the provincial power grid partition and enter the partition operation state.

9. An electronic device, characterized in that: The device comprises a processor and a memory: The memory is used to store program code and transmit the program code to the processor; The processor is used to execute the provincial power grid partition startup method described in any one of claims 1-4 according to the instructions in the program code.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium is used to store program code, and the program code is used to execute the provincial power grid partition startup method described in any one of claims 1-4.

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