Bus voltage loss self-healing method based on fault perception, electronic equipment and storage medium

Abstract

The invention discloses a bus voltage loss self-healing method based on fault sensing, electronic equipment and a storage medium. The method comprises the following steps: acquiring bus voltage data and a preset voltage threshold value in a power distribution network; in response to determining that the bus is in a voltage loss state based on the bus voltage data and a preset voltage threshold value, generating an initial power conversion scheme and voltage loss event information based on the topological structure of the power distribution network; pushing the voltage loss event information to the client, so that the client determines a target power transfer scheme based on the voltage loss event information and the initial power transfer scheme; and in response to the received target power transfer scheme fed back by the client, controlling the power distribution network to restore power supply based on the target power transfer scheme. According to the invention, the technical problems of long power failure time and low emergency power recovery efficiency caused by bus voltage loss are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of power system distribution network, and in particular to a busbar voltage loss self-healing method based on fault perception, electronic equipment and storage medium. Background Art

[0002] In modern power systems, distribution networks are the key link in delivering electrical energy from high-voltage transmission networks to users. In order to ensure the stable operation of the power system and the reliability of power supply, traditional fault isolation and power restoration methods mainly target small-scale faults, such as short circuits or ground faults in a single feeder. These methods usually rely on automation equipment, such as reclosers and circuit breakers, and intelligent protection systems to quickly detect and isolate fault areas, thereby minimizing the scope and duration of power outages.

[0003] However, the distribution network may also suffer large-scale disturbances, such as natural disasters (e.g., ice disasters, snowstorms, earthquakes, etc.) or external force damage (e.g., transmission line tower collapse or transmission line fault maintenance). In this case, one or more 10kV busbars may lose voltage, affecting a wide range and causing large-scale and long-term power outages. However, because traditional fault isolation and power restoration methods do not take into account the impact of large-scale faults, when the busbar loses voltage, the distribution network power outage time is long and the emergency power restoration efficiency is low.

[0004] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0005] The embodiments of the present invention provide a busbar pressure loss self-healing method based on fault perception, an electronic device and a storage medium, so as to at least solve the technical problems of long power outage time and low emergency power restoration efficiency caused by busbar pressure loss.

[0006] According to one embodiment of the present invention, a busbar undervoltage self-healing method based on fault perception is provided, which is applied to a server, and includes: obtaining busbar voltage data and a preset voltage threshold in a distribution network; in response to determining that the busbar is in an undervoltage state based on the busbar voltage data and the preset voltage threshold, generating an initial power transfer plan and undervoltage event information based on the distribution network topology; pushing the undervoltage event information to a client, so that the client determines a target power transfer plan based on the undervoltage event information and the initial power transfer plan; in response to receiving the target power transfer plan fed back by the client, controlling the distribution network to resume power supply based on the target power transfer plan.

[0007] Optionally, determining that the bus is in a voltage-depleted state based on the bus voltage data and a preset voltage threshold includes: determining that the bus is in an abnormal state in response to the bus voltage data being less than a preset voltage threshold; and determining that the bus is in a voltage-depleted state in response to the duration of the abnormal state being greater than a preset duration threshold.

[0008] Optionally, generating an initial power transfer plan based on the distribution network topology structure includes: obtaining a candidate recovery path based on the distribution network topology structure, wherein the candidate recovery path includes a feeder that is directly connected to the voltage-losing busbar or that can be indirectly connected through a connecting switch; obtaining the opposite line and / or main transformer line of the candidate recovery path; and generating an initial power transfer plan based on status information of the opposite line and / or main transformer line and the connecting switch.

[0009] Optionally, based on the status information of the opposite line and / or the main transformer line and the interconnecting switch, generating an initial power transfer plan includes: obtaining the load information to be transferred on the voltage-depleted bus and the load capacity information of the opposite line and / or the main transformer line; in response to the load capacity information being less than or equal to the load information to be transferred, determining the candidate recovery path corresponding to the load capacity information as the target recovery path; determining the scheduling strategy of the interconnecting switch based on the status information; and generating the initial power transfer plan based on the target recovery path and the scheduling strategy.

[0010] Optionally, generating the voltage loss event information based on the distribution network topology structure includes: acquiring fault location information and fault type information based on the distribution network topology structure; and generating the voltage loss event information based on the voltage loss duration, the fault location information and the fault type information.

[0011] According to one embodiment of the present invention, a busbar devoltage self-healing method based on fault perception is also provided, which is applied to a client, including: in response to receiving devoltage event information, checking the fault information and the initial power transfer plan in the devoltage event information; determining a target power transfer plan based on the fault information and the initial power transfer plan; and sending the target power transfer plan to a server.

[0012] Optionally, determining the target power transfer plan based on the fault information and the initial power transfer plan includes: in response to the initial power transfer plan being consistent with the fault information, determining the initial power transfer plan as the target power transfer plan; in response to the initial power transfer plan not being consistent with the fault information, adjusting the initial power transfer plan to obtain the target power transfer plan.

[0013] According to one embodiment of the present invention, there is also provided a busbar undervoltage self-healing device based on fault perception, which is applied to a server, and includes: an acquisition module for acquiring busbar voltage data and a preset voltage threshold in a distribution network; a generation module for generating an initial power transfer plan and undervoltage event information based on the distribution network topology structure in response to determining that the busbar is in an undervoltage state based on the busbar voltage data and the preset voltage threshold; a sending module for pushing the undervoltage event information to a client, so that the client determines a target power transfer plan based on the undervoltage event information and the initial power transfer plan; and a control module for controlling the distribution network to resume power supply based on the target power transfer plan in response to receiving the target power transfer plan fed back by the client.

[0014] Optionally, the busbar undervoltage self-healing device based on fault perception also includes a determination module, which is used to: determine that the busbar is in an abnormal state in response to the busbar voltage data being less than a preset voltage threshold; and determine that the busbar is in a undervoltage state in response to the duration of the abnormal state being greater than a preset duration threshold.

[0015] Optionally, the determination module is also used to obtain a candidate recovery path based on the distribution network topology, wherein the candidate recovery path includes a feeder that is directly connected to the voltage-depleted busbar or indirectly connected through a connecting switch; the acquisition module is also used to obtain the opposite line and / or main transformer line of the candidate recovery path; the generation module is also used to generate an initial power transfer plan based on the status information of the opposite line and / or main transformer line and the connecting switch.

[0016] Optionally, the acquisition module is also used to obtain the load information to be transferred on the pressure-depleted bus and the load capacity information of the opposite line and / or the main transformer line; the determination module is also used to: in response to the load capacity information being less than or equal to the load information to be transferred, determine the candidate recovery path corresponding to the load capacity information as the target recovery path; determine the scheduling strategy of the interconnecting switch based on the status information; the generation module is also used to generate an initial power transfer plan based on the target recovery path and the scheduling strategy.

[0017] Optionally, the acquisition module is further used to acquire fault location information and fault type information based on the distribution network topology; the generation module is further used to generate voltage loss event information based on the voltage loss duration, fault location information and fault type information.

[0018] According to one embodiment of the present invention, there is also provided a busbar undervoltage self-healing device based on fault perception, which is applied to a client and includes: an acquisition module for checking the fault information and the initial power transfer plan in the undervoltage event information in response to receiving the undervoltage event information; a determination module for determining the target power transfer plan based on the fault information and the initial power transfer plan; and a sending module for sending the target power transfer plan to the server.

[0019] Optionally, the determination module is further used to: in response to the initial power transfer plan being consistent with the fault information, determine the initial power transfer plan as a target power transfer plan; in response to the initial power transfer plan not being consistent with the fault information, adjust the initial power transfer plan to obtain a target power transfer plan.

[0020] According to one embodiment of the present invention, there is also provided an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the above-mentioned busbar voltage loss self-healing method based on fault perception is executed when the program is running.

[0021] According to one embodiment of the present invention, a non-volatile storage medium is further provided, in which a computer program is stored, wherein the computer program is configured to execute the above-mentioned busbar voltage loss self-healing method based on fault perception when running.

[0022] According to one embodiment of the present invention, there is further provided a computer program product, including a computer program, which implements the above-mentioned busbar voltage loss self-healing method based on fault perception when executed by a processor.

[0023] In an embodiment of the present invention, bus voltage data and a preset voltage threshold in the distribution network are obtained, and in response to determining that the bus is in a voltage-loss state based on the bus voltage data and the preset voltage threshold, an initial power transfer plan and voltage-loss event information are generated based on the distribution network topology structure, and the voltage-loss event information is pushed to the client, so that the client determines a target power transfer plan based on the voltage-loss event information and the initial power transfer plan, and finally, in response to receiving the target power transfer plan fed back by the client, the distribution network is controlled to resume power supply based on the target power transfer plan, thereby achieving the purpose of controlling the distribution network to quickly resume power supply when the bus is in a voltage-loss state, thereby achieving the technical effect of shortening the power outage duration caused by bus voltage loss and improving the emergency power restoration efficiency, and further solving the technical problems of long power outage duration and low emergency power restoration efficiency due to bus voltage loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 It is a hardware structure block diagram of a busbar voltage loss self-healing method based on fault perception according to one embodiment of the present invention;

[0026] Figure 2 is a flow chart of a busbar voltage loss self-healing method based on fault perception according to one embodiment of the present invention;

[0027] Figure 3 is a flow chart of another busbar voltage loss self-healing method based on fault perception according to one embodiment of the present invention;

[0028] Figure 4 is a schematic diagram of a busbar voltage loss self-healing method based on fault perception according to one embodiment of the present invention;

[0029] Figure 5 This is a structural block diagram of a busbar pressure loss self-healing device based on fault perception according to one embodiment of the present invention;

[0030] Figure 6It is a structural block diagram of another busbar pressure loss self-healing device based on fault perception according to one embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] The busbar pressure loss self-healing method embodiment based on fault perception provided in the embodiment of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Figure 1 FIG. 1 is a hardware structure block diagram of a busbar voltage loss self-healing method based on fault perception according to one embodiment of the present invention. Figure 1 As shown, the computer terminal 10 (or electronic device 10) may include one or more (102a, 102b, ..., 102n are used to illustrate) processors (the processor may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmission module 106 for communication functions. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the I / O interface), a network interface, a power supply and / or a camera. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above electronic device. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0034] It should be noted that the one or more processors and / or other data processing circuits described above may generally be referred to herein as "data processing circuits". The data processing circuits may be embodied in whole or in part as software, hardware, firmware, or any other combination thereof. In addition, the data processing circuit may be a single independent processing module, or may be incorporated in whole or in part into any of the other components in the computer terminal 10 (or electronic device). As described in the embodiments of the present application, the data processing circuit acts as a processor control (e.g., selection of a variable resistor terminal path connected to an interface).

[0035] The memory 104 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the busbar pressure loss self-healing method based on fault perception in the embodiment of the present application. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory 104, that is, the above-mentioned busbar pressure loss self-healing method based on fault perception is realized. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor, and these remote memories may be connected to the computer terminal 10 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0036] The transmission module 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the computer terminal 10. In one example, the transmission module 106 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission module 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0037] The display may be, for example, a touch screen type liquid crystal display (LCD), which may enable a user to interact with a user interface of the computer terminal 10 (or electronic device).

[0038] It should be noted that, in some optional embodiments, the above Figure 1 The computer device (or electronic device) shown may include hardware elements (including circuits), software elements (including computer code stored on a computer-readable medium), or a combination of hardware elements and software elements. It should be noted that Figure 1This is merely one example of a particular embodiment and is intended to illustrate the types of components that may be present in the above-described computer device (or electronic device).

[0039] According to an embodiment of the present invention, a method embodiment of a busbar depressurization self-healing method based on fault perception is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0040] Figure 2 is a flow chart of a busbar pressure loss self-healing method based on fault perception according to one embodiment of the present invention, which is applied to the service end, such as Figure 2 As shown, the method comprises the following steps:

[0041] Step S20, obtaining bus voltage data and a preset voltage threshold in the distribution network;

[0042] In step S20, the bus voltage data is used to characterize the three-phase line voltage of the bus, for example, to monitor the three-phase voltage of a 10 kV bus in real time.

[0043] The above-mentioned preset voltage value is used to represent the threshold value of the bus voltage. For example, the preset voltage threshold is set to 0.3 kV.

[0044] The above-mentioned server is used to represent the system or data center responsible for real-time monitoring, data processing and execution of control commands. In the power system, it includes but is not limited to the grid operation center, control center or distribution management system (DMS).

[0045] Step S22, in response to determining that the bus is in a voltage loss state based on the bus voltage data and a preset voltage threshold, generating an initial power transfer plan and voltage loss event information based on the distribution network topology;

[0046] In step S22, the distribution network topology is used to characterize the connection mode of each node (such as generator, substation, load, etc.) in the power system, including the connection relationship of all electrical equipment, such as lines, transformers, circuit breakers, etc.

[0047] The above initial power transfer plan is used to represent the power transfer plan generated by the service end based on the distribution network topology and the current grid operation status, and is used to give power transfer suggestions to the staff. The initial power transfer plan includes but is not limited to operations such as changing the output of the generator, adjusting the transformer ratio, switching lines, etc., with the purpose of restoring power supply to the voltage-depleted area as soon as possible while ensuring safety.

[0048] The above-mentioned voltage loss event information includes but is not limited to detailed information such as the time, duration, location, cause, and impact range of the voltage loss. The voltage loss event information is of guiding significance for analyzing the cause of voltage loss, evaluating the effect of fault handling, and improving the operation and management of the power grid.

[0049] Step S24, pushing the voltage loss event information to the client, so that the client determines a target power transfer plan based on the voltage loss event information and the initial power transfer plan;

[0050] In step S24, the client is used to represent a system or person that receives information pushed by the server and can process the information to make decisions, including but not limited to a field operation and maintenance team, a senior dispatcher, or an automated decision support system. The client can receive the pressure loss event information pushed by the server, evaluate the initial power transfer plan or adjust it, determine the final target power transfer plan, and send the target power transfer plan back to the server.

[0051] Specifically, the server pushes the voltage loss event information to the client. After receiving the voltage loss event information, the client adjusts the initial power transfer plan according to the voltage loss event information, or directly uses the initial power transfer plan to generate a target power transfer plan, and sends the target power transfer plan to the server.

[0052] Step S26, in response to receiving the target power transfer plan fed back by the client, controlling the distribution network to resume power supply based on the target power transfer plan.

[0053] Specifically, first, the server will monitor the voltage data on the bus in real time. When it is detected that the bus is in a voltage loss state, the voltage loss area is analyzed according to the grid topology, and other areas that may be affected are evaluated. Then, based on the analysis results, an initial power transfer plan is generated, which aims to minimize the impact of the voltage loss area and restore normal power supply as soon as possible. At the same time, detailed information about the voltage loss event will be recorded, including the time, location, cause, and scope of impact of the voltage loss. The server pushes the voltage loss event information to the client. After the client receives the voltage loss event information, it adjusts the initial power transfer plan according to the voltage loss event information, or directly uses the initial power transfer plan to determine the target power transfer plan, and sends the target power transfer plan to the server. Finally, the server executes the power transfer plan, monitors the execution effect, and makes adjustments when necessary.

[0054] Based on the above steps S20 to S26, the bus voltage data and preset voltage threshold in the distribution network are obtained, and in response to determining that the bus is in a de-voltage state based on the bus voltage data and the preset voltage threshold, an initial power transfer plan and de-voltage event information are generated based on the distribution network topology structure, and the de-voltage event information is pushed to the client, so that the client determines a target power transfer plan based on the de-voltage event information and the initial power transfer plan, and finally responds to the target power transfer plan received as feedback from the client, and controls the distribution network to resume power supply based on the target power transfer plan, thereby achieving the purpose of controlling the distribution network to quickly resume power supply when the bus is in a de-voltage state, thereby achieving the technical effect of shortening the power outage duration caused by bus de-voltage and improving the emergency power restoration efficiency, thereby solving the technical problems of long power outage duration and low emergency power restoration efficiency due to bus de-voltage.

[0055] Optionally, in step S22, determining that the bus is in a voltage-losing state based on the bus voltage data and a preset voltage threshold includes:

[0056] Step S221, in response to the bus voltage data being less than a preset voltage threshold, determining that the bus is in an abnormal state;

[0057] Step S222: In response to the duration of the abnormal state being greater than a preset duration threshold, it is determined that the bus is in a de-voltage state.

[0058] Specifically, when the bus voltage data is less than the preset voltage threshold, it is determined that the bus is in an abnormal state, but at this time it cannot be determined that the bus is in a de-voltage state. Only when the bus is in an abnormal state and the duration of the abnormal state is greater than the preset threshold, can it be determined that the bus is in a de-voltage state, not a false alarm or a short-term fluctuation. The preset voltage threshold and the preset time threshold can be configured according to the actual situation of the distribution network. For example, the three-phase line voltage of a 10kV bus is monitored in real time. The normal voltage range of the bus voltage is 9 to 12kV, and the preset voltage threshold is set to 0.3kV and the preset time threshold is set to 15s. When the bus voltage jumps to less than 0.3kV, and the above state lasts for more than 15s, it is determined that the bus is in a de-voltage state.

[0059] Based on the above steps S221 to S222, in response to the bus voltage data being less than the preset voltage threshold, it is determined that the bus is in an abnormal state; in response to the duration of the abnormal state being greater than the preset duration threshold, it is determined that the bus is in a voltage loss state. By setting the voltage threshold and the duration threshold, it is possible to distinguish between real voltage loss events and short-term voltage fluctuations, avoid false alarms and unnecessary emergency responses, and thus reduce waste of resources.

[0060] Optionally, in step S22, generating an initial power transfer plan based on the distribution network topology structure includes:

[0061] Step S223, obtaining a candidate restoration path based on the topological structure of the distribution network, wherein the candidate restoration path includes a feeder that is directly connected to the voltage-losing busbar or can be indirectly connected via a tie switch;

[0062] Specifically, the network topology of the distribution network is used to identify feeders that are directly connected to the de-voltage bus or that can be indirectly connected through a tie switch as candidate restoration paths, wherein paths that cannot be used due to physical limitations (such as inoperable switches), protection logic constraints, or safety regulations are excluded.

[0063] Step S224, obtaining the opposite-side line and / or the main transformer line of the candidate restoration path;

[0064] Specifically, detailed information of the opposite-side lines and main transformer lines of all candidate restoration paths is collected, including but not limited to load capacity, voltage level, connected equipment, etc.

[0065] Step S225: Generate an initial power transfer plan based on the status information of the opposite line and / or the main transformer line and the tie switch.

[0066] In step S225, the state information of the tie switch is used to characterize the states and operation restrictions of all possible tie switches involved, for example, whether the tie switch is closed, whether operation is allowed in the current state, etc.

[0067] Specifically, for each candidate restoration path, it is necessary to obtain information about its opposite line, that is, the line connected to the other end, and / or the main transformer line of each candidate restoration path. Using the status information of the opposite line, the main transformer line, and the connecting switch, a preliminary power transfer plan is formulated to determine how to transfer the load on the de-voltage bus to other lines. For example, in a distribution network, bus A loses voltage. The server identifies feeders 1 and 2 directly connected to bus A, and feeders 3 and 4 indirectly connected through connecting switch L1. If connecting switch L1 is currently inoperable, feeders 3 and 4 will be excluded. For feeders 1 and 2, the server needs to obtain information about their opposite lines and the main transformers to which they are connected. Based on the status information of feeders 1 and 2 and the connecting switch, a preliminary power transfer plan is formulated to determine how to transfer the load on the de-voltage bus to other lines.

[0068] Based on the above steps S223 to S225, a candidate recovery path is obtained based on the distribution network topology structure; the opposite line and / or the main transformer line of the candidate recovery path is obtained; based on the status information of the opposite line and / or the main transformer line and the interconnecting switch, an initial power transfer plan is generated. By automatically identifying the candidate recovery paths, possible recovery plans can be quickly located, thereby speeding up the response to the pressure loss event, and the detailed candidate recovery path information and the status information of the interconnecting switch provide important decision-making support for operators, thereby shortening the power outage duration caused by bus pressure loss and improving the emergency power restoration efficiency.

[0069] Optionally, in step S225, generating an initial power transfer plan based on the status information of the opposite line and / or the main transformer line and the tie switch includes:

[0070] Step S2251, obtaining load information to be transferred on the voltage-losing bus and load capacity information of the opposite line and / or the main transformer line;

[0071] Step S2252, in response to the load capacity information being less than or equal to the load information to be transferred, determining the candidate recovery path corresponding to the load capacity information as the target recovery path;

[0072] Step S2253, determining a scheduling strategy for the tie switch based on the state information;

[0073] Step S2254, generating an initial power transfer plan based on the target recovery path and the scheduling strategy.

[0074] Specifically, calculate the total load that needs to be transferred on the depressurized bus. Compare the load to be transferred with the load capacity of the opposite line and the main transformer line of all candidate restoration paths. Ensure that any selected path can safely handle the additional load. Based on the results of load matching, screen out paths that can meet load requirements and comply with operating specifications. Exclude those paths that cannot be used due to physical damage, limitations of protection devices or other safety regulations. Among the feasible paths, comprehensively consider factors such as load transfer amount, path reliability, and restoration time, select the best candidate restoration paths, and determine them as target restoration paths to disperse the load and reduce dependence on a single path. Determine the order and method of the contact switches that need to be operated based on the status information of the contact switches to achieve smooth load transfer.

[0075] Specifically, in the generated initial power transfer plan, voltage and power flow simulation analysis is required to ensure that the initial power transfer plan will not cause adverse effects on other parts of the power grid, such as voltage drop or overload. According to the simulation results, the power transfer plan is adjusted and optimized as necessary to improve the stability and reliability of the distribution network.

[0076] Based on the above steps S2251 to S2254, the load information to be transferred on the depressurized bus and the load capacity information of the opposite line and / or the main transformer line are obtained; in response to the load capacity information being less than or equal to the load information to be transferred, the candidate recovery path corresponding to the load capacity information is determined as the target recovery path; the dispatching strategy of the interconnecting switch is determined based on the status information; an initial power transfer plan is generated based on the target recovery path and the dispatching strategy, and by excluding inoperable or restricted paths, it is ensured that the generated initial power transfer plan is feasible, thereby providing a more robust solution in the event of a loss of pressure, and by obtaining detailed information on the opposite line and the main transformer line of the candidate recovery path, grid resources can be allocated more reasonably, overload can be avoided, and balanced operation of the grid can be ensured, and the automated generation of the initial power transfer plan can reduce power outage time and the demand for on-site personnel, thereby improving user satisfaction with power supply and reducing operation and maintenance costs.

[0077] Optionally, in step S22, generating the voltage loss event information based on the distribution network topology structure includes:

[0078] Step S226, acquiring fault location information and fault type information based on the distribution network topology;

[0079] Step S227, generating pressure loss event information based on the pressure loss duration, fault location information and fault type information.

[0080] Specifically, the exact location where the busbar voltage loss occurs is identified through the distribution network topology, and the nature of the busbar voltage loss is determined, such as single-phase grounding, two-phase short circuit, three-phase short circuit, etc. The time from the occurrence of voltage loss to the detection of the fault, as well as the duration of the fault, is recorded. The information such as the duration of voltage loss, fault location and fault type is integrated to generate comprehensive voltage loss event information. For example, voltage loss event information includes: the time points when the voltage loss occurs and ends; the specific location of the fault, such as the substation name, feeder identification, etc.; the fault type and possible causes; and the number of loads and users affected.

[0081] Furthermore, the voltage loss event information is updated according to the execution status of the client, including the situation of the server generating the initial power transfer plan, the execution status of the target power transfer plan, and the processing node and processor. The situation of generating the initial power transfer plan includes analyzing and analysis completed, where analyzing means that the server is analyzing the voltage loss event and has not yet generated the initial power transfer plan; analysis completed means that the initial power transfer plan has been generated. The execution status of the target power transfer plan includes not executed, executing, and completed, where not executed means that the target power transfer plan has not been executed, processing means that the target power transfer plan is being processed, and completed means that the target power transfer plan has been executed. The processing node is the server that handles the voltage loss event; the processor is the person who handles the voltage loss event.

[0082] Based on the above steps S226 to S227, the fault location information and fault type information are obtained based on the distribution network topology structure; the voltage loss event information is generated based on the voltage loss duration, the fault location information and the fault type information. By recording the fault location, type and voltage loss duration in detail, the voltage loss event can be diagnosed more accurately, providing richer data support for fault analysis and repair. The ability to quickly identify the voltage loss area and fault type helps to speed up problem analysis, thereby shortening the fault response time.

[0083] Figure 3 is a flowchart of another busbar pressure loss self-healing method based on fault perception according to one embodiment of the present invention, which is applied to a client, such as Figure 3 As shown, the method comprises the following steps:

[0084] Step S30, in response to receiving the voltage loss event information, checking the fault information and the initial power transfer plan in the voltage loss event information;

[0085] Step S32, determining a target power transfer plan based on the fault information and the initial power transfer plan;

[0086] Step S34, sending the target power transfer plan to the server.

[0087] Specifically, after the server detects the voltage loss event and generates the voltage loss event information, it sends the voltage loss event information to the client. After receiving the voltage loss event information, the client first checks the fault information contained therein, including the time, location, type, etc. of the fault. At the same time, it checks the initial power transfer plan to understand the preliminary power transfer plan. According to the fault information and the actual operating status of the distribution network, the client evaluates the feasibility and safety of the initial power transfer plan and determines the target power transfer. The client sends the determined target power transfer plan back to the server. After receiving the target power transfer plan from the client, the server performs corresponding operations, such as operating switches, adjusting transformers, etc., to achieve power transfer. For example, in the distribution network, a busbar voltage loss occurs in one area. The server detects the voltage loss event and provides the fault location and type, such as a three-phase short circuit of feeder 12. At the same time, the server generates a preliminary power transfer plan and recommends using feeder 15 as the transfer path to restore power supply. The client evaluates the preliminary power transfer plan provided by the server and finds that the current load of feeder 15 is close to the maximum capacity, and direct transfer may cause overload. Therefore, the client decides to adjust the plan, selects feeder 14 as an alternative path, and adds a temporary generator as an auxiliary if necessary. The client sends the adjusted target power transfer plan to the server. After receiving the plan, the server operates the corresponding circuit breaker according to the instructions, transfers the load in the voltage-loss area to feeder 14, and starts the temporary generator if necessary.

[0088] Based on the above steps S30 to S34, in response to receiving the voltage loss event information, check the fault information and the initial power transfer plan in the voltage loss event information; determine the target power transfer plan based on the fault information and the initial power transfer plan; send the target power transfer plan to the server, and the distribution network can respond quickly and efficiently when a voltage loss event occurs to ensure the stability and reliability of the power supply, and the close cooperation between the client and the server can ensure that the power transfer plan meets the requirements of fault handling while ensuring safety and stability.

[0089] Optionally, in step S32, determining a target power transfer plan based on the fault information and the initial power transfer plan includes:

[0090] Step S321, in response to the initial power transfer plan being consistent with the fault information, determining the initial power transfer plan as the target power transfer plan;

[0091] Step S322: In response to the initial power transfer plan not being in accordance with the fault information, the initial power transfer plan is adjusted to obtain a target power transfer plan.

[0092] Specifically, if the initial power transfer plan conforms to the fault information and is considered safe and effective, the client directly determines this plan as the target power transfer plan. If the initial power transfer plan does not conform to the fault information or there is a safety risk, the client needs to adjust the initial power transfer plan to ensure the safety and effectiveness of the power transfer operation. Adjustments to the initial power transfer plan include but are not limited to: Editing the path: changing the power transfer path to adapt to actual grid conditions. Deleting inapplicable operations: removing steps that may cause additional risks or do not conform to actual operating conditions. Adjusting priorities: adjusting the priority of operations based on the real-time status of the grid and load demand. One-click pinning: Prioritizing key operations or paths to ensure that they are executed first. For example, the initial power transfer plan can be edited, deleted, increased / lowered, and pinned with one click.

[0093] Based on the above steps S321 to S322, in response to the initial power transfer plan being consistent with the fault information, the initial power transfer plan is determined to be the target power transfer plan; in response to the initial power transfer plan not being consistent with the fault information, the initial power transfer plan is adjusted to obtain the target power transfer plan. By ensuring that the power transfer plan is fully consistent with the fault information and the actual conditions of the power grid, safety problems caused by inappropriate plans can be avoided. The initial power transfer plan is allowed to be adjusted to make the power transfer plan more flexible and able to adapt to changing power grid conditions. In addition, by quickly identifying and adopting or adjusting the initial plan, the decision-making time can be reduced and the speed of restoring power supply can be accelerated. By accurately adjusting the plan, it can be ensured that resources are effectively utilized and unnecessary operations and waste of resources can be avoided. Accurate power transfer plans can reduce the instability factors of the power grid and improve the reliability of the entire power system.

[0094] Figure 4 is a schematic diagram of a busbar voltage loss self-healing method based on fault perception according to one embodiment of the present invention, such as Figure 4 As shown, the server obtains the bus voltage data and preset voltage threshold in the distribution network, and in response to determining that the bus is in a de-voltage state based on the bus voltage data and the preset voltage threshold, generates an initial power transfer plan and de-voltage event information based on the distribution network topology, and pushes the de-voltage event information to the client, so that the client determines the target power transfer plan based on the de-voltage event information and the initial power transfer plan. In response to receiving the de-voltage event information, the client checks the fault information and the initial power transfer plan in the de-voltage event information; determines the target power transfer plan based on the fault information and the initial power transfer plan; and sends the target power transfer plan to the server. Finally, in response to the target power transfer plan received by the server from the client, the distribution network is controlled to resume power supply based on the target power transfer plan. After the execution of the target power transfer plan, the de-voltage event information, the initial power transfer plan, and the target power transfer plan are recorded and stored and provided for query, so as to facilitate the dispatcher to archive and replay after the accident handling is completed. The purpose of controlling the distribution network to quickly restore power supply when the bus is in a de-voltage state is achieved, thereby achieving the technical effect of shortening the power outage duration caused by bus de-voltage and improving the efficiency of emergency power restoration, and further solving the technical problems of long power outage duration and low emergency power restoration efficiency caused by bus de-voltage.

[0095] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0096] In an embodiment of the present invention, a busbar pressure loss self-healing device based on fault perception is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and will not be repeated hereafter. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0097] Figure 5 is a structural block diagram of a busbar pressure loss self-healing device based on fault perception according to one embodiment of the present invention. The device is applied to the service end, such as Figure 5 As shown, the device comprises:

[0098] An acquisition module 501 is used to acquire bus voltage data and a preset voltage threshold in a distribution network;

[0099] A generating module 502, configured to generate an initial power transfer plan and voltage loss event information based on a distribution network topology structure in response to determining that the bus is in a voltage loss state based on bus voltage data and a preset voltage threshold;

[0100] The sending module 503 is used to push the voltage loss event information to the client, so that the client determines the target power transfer plan based on the voltage loss event information and the initial power transfer plan;

[0101] The control module 504 is used to control the distribution network to resume power supply based on the target power transfer plan in response to receiving the target power transfer plan fed back by the client.

[0102] Optionally, the busbar undervoltage self-healing device based on fault perception also includes a determination module 505, which is used to: determine that the busbar is in an abnormal state in response to the busbar voltage data being less than a preset voltage threshold; determine that the busbar is in a undervoltage state in response to the duration of the abnormal state being greater than a preset duration threshold.

[0103] Optionally, the determination module 505 is also used to obtain a candidate restoration path based on the distribution network topology, wherein the candidate restoration path includes a feeder that is directly connected to the voltage-depleted busbar or that can be indirectly connected through a connecting switch; the acquisition module 501 is also used to obtain the opposite line and / or main transformer line of the candidate restoration path; the generation module 502 is also used to generate an initial power transfer plan based on the status information of the opposite line and / or main transformer line and the connecting switch.

[0104] Optionally, the acquisition module 501 is also used to obtain the load information to be transferred on the voltage-depleted bus and the load capacity information of the opposite line and / or the main transformer line; the determination module 505 is also used to: in response to the load capacity information being less than or equal to the load information to be transferred, determine the candidate recovery path corresponding to the load capacity information as the target recovery path; determine the scheduling strategy of the interconnecting switch based on the status information; the generation module 502 is also used to generate an initial power transfer plan based on the target recovery path and the scheduling strategy.

[0105] Optionally, the acquisition module 501 is further used to acquire fault location information and fault type information based on the distribution network topology; the generation module 502 is further used to generate voltage loss event information based on the voltage loss duration, fault location information and fault type information.

[0106] Figure 6 is a structural block diagram of another busbar pressure loss self-healing device based on fault perception according to one embodiment of the present invention. The device is applied to the client, such as Figure 6As shown, the device comprises:

[0107] An acquisition module 601 is used to check the fault information and the initial power transfer plan in the voltage loss event information in response to receiving the voltage loss event information;

[0108] A determination module 602 is used to determine a target power transfer plan based on the fault information and the initial power transfer plan;

[0109] The sending module 603 is used to send the target power transfer plan to the server.

[0110] Optionally, the determination module 602 is further used to: in response to the initial power transfer plan being consistent with the fault information, determine the initial power transfer plan as a target power transfer plan; in response to the initial power transfer plan not being consistent with the fault information, adjust the initial power transfer plan to obtain a target power transfer plan.

[0111] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0112] According to one embodiment of the present invention, there is also provided an electronic device, comprising: a memory storing an executable program; and a processor for running the program, wherein the above-mentioned busbar voltage loss self-healing method based on fault perception is executed when the program is running.

[0113] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0114] Step S1, obtaining bus voltage data and a preset voltage threshold in the distribution network;

[0115] Step S2, in response to determining that the bus is in a voltage loss state based on the bus voltage data and a preset voltage threshold, generating an initial power transfer plan and voltage loss event information based on a distribution network topology structure;

[0116] Step S3, pushing the voltage loss event information to the client, so that the client determines a target power transfer plan based on the voltage loss event information and the initial power transfer plan;

[0117] Step S4, in response to receiving the target power transfer plan fed back by the client, controlling the distribution network to resume power supply based on the target power transfer plan.

[0118] According to one embodiment of the present invention, a non-volatile storage medium is further provided, in which a computer program is stored, wherein the computer program is configured to execute the above-mentioned busbar voltage loss self-healing method based on fault perception when running.

[0119] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0120] Step S1, obtaining bus voltage data and a preset voltage threshold in the distribution network;

[0121] Step S2, in response to determining that the bus is in a voltage loss state based on the bus voltage data and a preset voltage threshold, generating an initial power transfer plan and voltage loss event information based on a distribution network topology structure;

[0122] Step S3, pushing the voltage loss event information to the client, so that the client determines a target power transfer plan based on the voltage loss event information and the initial power transfer plan;

[0123] Step S4, in response to receiving the target power transfer plan fed back by the client, controlling the distribution network to resume power supply based on the target power transfer plan.

[0124] Optionally, in this embodiment, the above-mentioned storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0125] According to one embodiment of the present invention, there is further provided a computer program product, including a computer program, which implements the above-mentioned busbar voltage loss self-healing method based on fault perception when executed by a processor.

[0126] Optionally, in this embodiment, the computer program product may be configured as a computer program for executing the following steps:

[0127] Step S1, obtaining bus voltage data and a preset voltage threshold in the distribution network;

[0128] Step S2, in response to determining that the bus is in a voltage loss state based on the bus voltage data and a preset voltage threshold, generating an initial power transfer plan and voltage loss event information based on a distribution network topology structure;

[0129] Step S3, pushing the voltage loss event information to the client, so that the client determines a target power transfer plan based on the voltage loss event information and the initial power transfer plan;

[0130] Step S4, in response to receiving the target power transfer plan fed back by the client, controlling the distribution network to resume power supply based on the target power transfer plan.

[0131] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0132] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0133] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0134] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0135] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0136] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0137] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A busbar pressure loss self-healing method based on fault perception, characterized in that: Applied to the server, including: Obtain bus voltage data and preset voltage thresholds in the distribution network; In response to determining that the bus is in a voltage loss state based on the bus voltage data and the preset voltage threshold, generating an initial power transfer plan and voltage loss event information based on a distribution network topology structure; Pushing the voltage loss event information to a client, so that the client determines a target power transfer plan based on the voltage loss event information and the initial power transfer plan; In response to receiving the target power transfer plan fed back by the client, the power distribution network is controlled to resume power supply based on the target power transfer plan.

2. The busbar pressure loss self-healing method based on fault perception according to claim 1 is characterized in that: Determining that the bus is in a voltage-loss state based on the bus voltage data and the preset voltage threshold comprises: In response to the bus voltage data being less than the preset voltage threshold, determining that the bus is in an abnormal state; In response to the duration of the abnormal state being greater than a preset duration threshold, it is determined that the bus is in the pressure-depleted state.

3. The busbar pressure loss self-healing method based on fault perception according to claim 1 is characterized in that: Generating the initial power transfer plan based on the distribution network topology structure includes: Obtaining a candidate restoration path based on the distribution network topology, wherein the candidate restoration path includes a feeder that is directly connected to the voltage-losing busbar or that can be indirectly connected via a tie switch; Acquire the opposite side line and / or the main transformer line of the candidate restoration path; The initial power transfer plan is generated based on the status information of the opposite-side line and / or the main transformer line and the tie switch.

4. The busbar pressure loss self-healing method based on fault perception according to claim 3 is characterized in that: Generating the initial power transfer plan based on the status information of the opposite line and / or the main transformer line and the tie switch includes: Obtaining load information to be transferred on the voltage-depleted bus and load capacity information of the opposite line and / or the main transformer line; In response to the load capacity information being less than or equal to the load information to be transferred, determining the candidate recovery path corresponding to the load capacity information as the target recovery path; Determining a scheduling strategy for the tie switch based on the state information; The initial power transfer plan is generated based on the target recovery path and the scheduling strategy.

5. The busbar pressure loss self-healing method based on fault perception according to claim 1 is characterized in that: Generating the voltage loss event information based on the distribution network topology structure includes: Acquiring fault location information and fault type information based on the distribution network topology; The pressure loss event information is generated based on the pressure loss duration, the fault location information and the fault type information.

6. A busbar pressure loss self-healing method based on fault perception, characterized in that: Applied to the client, including: In response to receiving the voltage loss event information, checking the fault information and the initial power transfer plan in the voltage loss event information; Determine a target power transfer plan based on the fault information and the initial power transfer plan; The target power transfer plan is sent to the service end.

7. The busbar pressure loss self-healing method based on fault perception according to claim 6 is characterized in that: Determining a target power transfer plan based on the fault information and the initial power transfer plan includes: In response to the initial power transfer plan being consistent with the fault information, determining the initial power transfer plan as the target power transfer plan; In response to the initial power transfer plan not meeting the fault information, the initial power transfer plan is adjusted to obtain the target power transfer plan.

8. An electronic device, characterized in that: include: A memory storing an executable program; A processor is used to run the program, wherein when the program is run, the busbar voltage loss self-healing method based on fault perception as described in any one of claims 1 to 7 is executed.

9. A non-volatile storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program is configured to execute the busbar voltage loss self-healing method based on fault perception as described in any one of claims 1 to 7 when running.

10. A computer program product, characterized in that It comprises a computer program, which, when executed by a processor, implements the busbar voltage loss self-healing method based on fault perception according to any one of claims 1 to 7.

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