A system and method for automatically generating a 10kV busbar voltage loss or maintenance power supply plan

Abstract

The present application discloses a system and method for automatically generating a power transfer plan for a 10kV busbar undervoltage or maintenance, including: a parameter setting module for setting a priority strategy, a load rate limit of the opposite line, and a power transfer sequence strategy; a data statistics module for obtaining the 10kV lines powered by the 10kV busbar, the contact relationship of the 10kV lines, the substation ledger information, and the load data; an analysis and processing module for analyzing the 10kV lines powered by the 10kV busbar, generating contact topology relationships, and generating the 10kV busbar undervoltage or maintenance power transfer plan according to the 10kV busbar undervoltage or maintenance and maintenance mode arrangement, using the distribution network operation optimal algorithm; and an interface display interaction module for displaying and exporting the 10kV busbar undervoltage or maintenance power transfer plan. The present application can realize the automatic generation of power transfer plans in situations such as 10kV busbar undervoltage or maintenance.

Description

Technical Field

[0001] The present application belongs to the technical field of electric power systems, and specifically relates to a system and method for automatically generating a 10kV busbar voltage loss or maintenance power supply transfer plan. Background Art

[0002] The power system is one of the important infrastructures of modern society, and its stable operation is crucial to ensure the normal production and life. In the power system, the 10kV bus plays an important role and is one of the main transmission channels of the power system.

[0003] However, due to various reasons, such as equipment failure, planned maintenance, etc., the 10kV bus may lose voltage, causing power outages for related equipment and affecting the normal operation of the power system.

[0004] At present, the automatic generation technology for 10kV busbar power supply transfer plans for voltage loss or maintenance has not yet fully matured. The traditional voltage loss power supply transfer plan formulation usually relies on manual experience and manual operation, and has the following problems: 1. Insufficient response speed. Manual plan formulation requires a certain amount of time and cannot respond to voltage loss events in time; 2. Dependence on experience. The formulation of plans often relies on the experience of operation and maintenance personnel and lacks systematization and scientificity; 3. Inefficiency. In complex situations, manual plan formulation is inefficient and prone to omissions or errors. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the present application provides a system and method for automatically generating a power supply transfer plan in case of a 10kV busbar loss of voltage or maintenance, so as to realize the automatic generation of a power supply transfer plan in case of a 10kV busbar loss of voltage or maintenance, optimize the power supply transfer plan through an intelligent algorithm, reduce load transfer, reduce system operating costs, and ensure priority power supply to important users.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] A system for automatically generating a 10kV busbar power supply transfer plan for voltage loss or maintenance, comprising:

[0008] The parameter setting module is used to set the transfer priority strategy and the load rate limit of the opposite line; the transfer priority strategy includes: when there is a distributed power source participating in the power restoration in the transfer path, the transfer path of the non-distributed power source is given priority; when the line of the transfer path is overloaded, the overloaded line is placed at the end; when the line of the transfer path is not overloaded, the transfer path through the section switch in the switch station or the dedicated tie line switch between stations is given priority, and the load is not judged to ensure that the transfer power supply and the existing power supply of the dual power supply user are not from the same substation; the calculation formula of the load rate is: load rate = actual load / rated load × 100%;

[0009] A data statistics module is used to obtain the 10kV lines powered by the 10kV bus, the 10kV line connection relationship, the substation ledger information and the actual load data;

[0010] The analysis and processing module is used to analyze the connection relationship between the 10kV line powered by the 10kV bus and the 10kV line, generate a connection topology relationship, and generate a power transfer plan for the 10kV bus when the 10kV bus loses voltage or is under maintenance according to the 10kV bus and the substation ledger information by using the optimal distribution network operation algorithm; the analysis and processing module is also used to analyze the load rate of each line according to the actual load and rated load data to ensure that the load in the transfer plan does not exceed the carrying capacity of the line;

[0011] And an interface display interaction module is used to display and export the 10kV busbar voltage loss or maintenance power supply plan.

[0012] Furthermore, the distribution network operation optimal algorithm includes:

[0013] The objective function is to minimize the total operating cost for:

[0014] ;

[0015] in, P loss is the normalized power loss cost, C operation is the normalized switching operation cost, C load transfer is the cost of load transfer after normalization;

[0016] Minimize the total load of the transfer scheme for:

[0017] ;

[0018] Among them, transferred load is the load transfer amount;

[0019] The constraints include: the load rate of each line does not exceed the rated load; ensuring priority power supply to dual-power users; avoiding the same substation from providing power to dual-power users; and giving priority to lines with lower load rates.

[0020] Furthermore, according to the 10kV busbar voltage loss or maintenance and the substation ledger information, the optimal distribution network operation algorithm is adopted to generate the 10kV busbar voltage loss or maintenance power supply transfer plan, including:

[0021] Initialize, mark all lines and substations as unused, load input data, including line information, load data, substation information and priority strategy; and initialize the power supply plan list to be empty;

[0022] Select the transfer path. For each voltage-depleted line, select the transfer path according to the following formulas for minimizing total load transfer, minimizing power loss and operating cost. Among the possible transfer paths, the path with the smallest load transfer is preferred. The formulas for minimizing total load transfer, minimizing power loss and operating cost are:

[0023] ;

[0024] ;

[0025] Among them, transferred load is the load transfer amount, and possible transferred loads is the load transfer amount corresponding to all possible transfer paths;

[0026] Load distribution, after selecting the transfer path, calculate the load transfer to ensure that the new load rate does not exceed the rated load. The new load rate calculation formula is:

[0027] ;

[0028] Among them, Original_load is the original load, and Rated load is the rated load;

[0029] Verify the plan, check all transfer plans, verify whether there is excessive load transfer in the transfer plan, whether the power loss is within the acceptable range, whether the number of switching operations is minimized, and whether dual power users are given priority;

[0030] Optimization and adjustment: if the load rate of a line exceeds the standard, reselect the transfer path and adjust the load transfer amount;

[0031] Outputting the results, outputting the optimized power transfer plan, the power transfer plan including the load distribution, power transfer path and corresponding cost of each line;

[0032] As well as the system output power transfer plan and visual topology relationship, it lists the load distribution, transfer path, load rate, and estimated losses and costs of each line.

[0033] Furthermore, the parameter setting module is also used for:

[0034] Generating dangerous points and preventive control measures according to the power transfer priority strategy and the side line load rate limit; and manually revising the dangerous points and preventive control measures;

[0035] And parameter resetting, wherein the parameter resetting includes resetting the transfer strategy information modified by the user.

[0036] Furthermore, the analysis and processing module is also used for:

[0037] Based on the fact that the incoming line does not exceed the preset load rate, the 10kV busbar voltage loss or maintenance power supply plan is generated.

[0038] Furthermore, the analysis and processing module is also used for:

[0039] The 10kV busbar voltage loss or maintenance power supply plan is generated according to the superimposed current of the current of the outgoing line and the incoming line; for:

[0040] ;

[0041] in, , is the active and reactive power of the outgoing line, , is the active and reactive power transferred into the line, is the line voltage.

[0042] Furthermore, the data statistics module is also used to obtain the feeder ring network point information of the substation, and generate a feeder ring network point quick lookup table according to the obtained feeder ring network point information of the substation;

[0043] The interface display interaction module includes:

[0044] The organizational tree display component is used to display the departments and substation information under the power supply company to which the logged-in personnel are authorized. Among them, the local dispatching network dispatching service command team only displays the substations in the local dispatching management area, and the county dispatching network dispatching service command team only displays the substations in the county dispatching management area;

[0045] The busbar pressure loss or maintenance power supply transfer plan list display component is used to display the busbar pressure loss or maintenance power supply transfer plan under the organization and substation selected by the user;

[0046] And a plan improvement component is used to generate a voltage loss or maintenance power transfer plan based on the feeder ring network point quick lookup table, support users to modify the voltage loss or maintenance power transfer plan, and improve the plan information.

[0047] In addition, the present application also provides a method for automatically generating a 10kV busbar voltage loss or maintenance power supply plan for the system as described above, comprising:

[0048] Set the transfer priority strategy and the load rate limit of the opposite line; the transfer priority strategy includes: when there is a distributed power source participating in the power restoration in the transfer path, give priority to the transfer path of non-distributed power source; when the line of the transfer path is overloaded, the overloaded line is placed at the end; when the line of the transfer path is not overloaded, give priority to the transfer path through the section switch in the switch station or the dedicated tie line switch between stations, and do not judge the load amount, so as to ensure that the transfer power supply and the existing power supply of the dual power supply user are not from the same substation; the calculation formula of the load rate is: load rate = actual load / rated load × 100%;

[0049] Obtain the 10kV line powered by the 10kV bus, the 10kV line contact relationship, the substation ledger information and the actual load data;

[0050] Analyze the connection relationship between the 10kV line powered by the 10kV bus and the 10kV line, generate a connection topology relationship, and according to the 10kV bus voltage loss or maintenance and the substation ledger information, use the distribution network operation optimal algorithm to generate the 10kV bus voltage loss or maintenance power supply plan;

[0051] Analyze the load factor of each line based on the actual load and rated load data to ensure that the load in the transfer plan does not exceed the carrying capacity of the line;

[0052] And display and export the 10kV busbar voltage loss or maintenance power supply transfer plan.

[0053] In addition, the present application also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-described method when executing the computer program.

[0054] In addition, the present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the method described above is implemented.

[0055] Compared with the prior art, this application has the following advantages:

[0056] This application utilizes the automatic generation system of 10kV busbar voltage loss or maintenance power supply transfer plan to intelligently generate 10kV busbar voltage loss or maintenance power supply transfer plans. Compared with traditional manual plan formulation, it saves manpower and material resources and reduces the error rate of plan formulation in complex situations. It has multiple beneficial effects such as fast response, accurate plan formulation, automated operation, flexible adaptation, resource optimization and user-friendliness, which can effectively improve the safety of power grid operation and ensure reliable power supply of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application but do not constitute an improper limitation on the present application. In the drawings:

[0058] Figure 1 A schematic diagram of the system of this application;

[0059] Figure 2 A flow chart of the method of this application;

[0060] Figure 3 A schematic diagram of the structure of the computer device of the present application;

[0061] Figure 4 This is a schematic diagram of the structure of another computer device of the present application. DETAILED DESCRIPTION

[0062] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0063] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms and the like is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device, element, module, system, platform or device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The following description of the present application is only understood as a description of individual embodiments of the technical solution of the present application. Other embodiments are not reflected in the following description, but it does not mean that the present application excludes these other embodiments, and the technical solution of the present application is not limited to the specific implementation methods described below, and the protection scope of the present application is not limited to only the specific implementation methods described below. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present application.

[0064] It should be noted that if the terms "first", "second", etc. appear in the specification and claims of the present application and the above-mentioned drawings, the description is only used to distinguish similar objects, and is not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0065] In some embodiments, Figure 1 As shown, a 10kV busbar voltage loss or maintenance power supply transfer plan automatic generation system 1 includes:

[0066] The parameter setting module 11 is used to set the transfer priority strategy and the load rate limit of the opposite line; the transfer priority strategy includes: when there is a distributed power source participating in the power restoration in the transfer path, the transfer path of the non-distributed power source is given priority; when the line of the transfer path is overloaded, the overloaded line is placed at the end; when the line of the transfer path is not overloaded, the transfer path through the section switch in the switch station or the dedicated tie line switch between stations is given priority, and the load is not judged to ensure that the transfer power supply and the existing power supply of the dual power supply user are not from the same substation; the calculation formula of the load rate is: load rate = actual load / rated load × 100%;

[0067] A data statistics module 12 is used to obtain the 10kV lines powered by the 10kV bus, the 10kV line connection relationship, the substation ledger information and the load data;

[0068] The 10kV lines are multiple 10kV lines, and are connected in a radial shape on the 10kv bus; the 10kV line connection relationship is the connection relationship between different 10kV lines, and there are contact points between each line, including switches, transformers, connecting lines, etc.; the substation ledger information includes the substation number name, substation capacity and equipment information; the load data includes the load curve and load rate of the line.

[0069] Specifically, through the data statistics of the above content, 1) the interconnection topology relationship can be generated, and the 10kV line and its interconnection relationship data can be used to build the topology relationship of the distribution network to visualize the system structure and help analyze and optimize the operation of the distribution network; 2) a power transfer plan can be formulated, and the load rate of each line can be analyzed according to the actual load and rated load data to ensure that the load in the transfer plan does not exceed the carrying capacity of the line, thereby ensuring that the transfer plan meets the priority strategy, such as avoiding overload and selecting a suitable transfer path; 3) the operation of the distribution network is optimized, and the substation ledger information, line load data and interconnection relationship are comprehensively considered, and the optimal distribution network operation algorithm is used to generate a transfer plan to optimize the operation and recovery capabilities of the power system.

[0070] The analysis and processing module 13 is used to analyze the connection relationship between the 10kV line powered by the 10kV bus and the 10kV line, generate a connection topology relationship, and generate a power transfer plan for the 10kV bus when the 10kV bus loses voltage or is under maintenance according to the 10kV bus and the substation ledger information by using the optimal distribution network operation algorithm; the analysis and processing module is also used to analyze the load rate of each line according to the actual load and rated load data to ensure that the load in the transfer plan does not exceed the carrying capacity of the line;

[0071] And an interface display interaction module 14 is used to display and export the 10kV busbar voltage loss or maintenance power supply plan.

[0072] In some embodiments, the distribution network operation optimal algorithm includes:

[0073] The objective function is to minimize the total operating cost for:

[0074] ;

[0075] in, P loss is the normalized power loss cost, C operation is the normalized switching operation cost, C load transfer is the cost of load transfer after normalization;

[0076] The unreasonable problem of simple addition of different dimensions is solved by normalization and weight allocation. The normalization process can be: first normalize each of the above cost items (that is, convert them to the same scale), and then add them together, so as to avoid the influence caused by the scale differences between different physical quantities. In order to more reasonably represent the importance of these factors in the overall cost optimization, these factors can be balanced by assigning different weight coefficients. The weight coefficient is a weight coefficient set when setting parameters based on actual experience or strategy requirements, which is used to control the degree of influence of each factor on the final optimization result. This application sets the weight value of each cost allocation to be equal, so the weight coefficient is omitted and the normalized costs are directly added.

[0077] The goal of minimization is to optimize the cumulative total amount, which is the optimization of the total cost in the entire transfer operation. The model constructs possible transfer paths, calculates the total cost of each plan, and then selects the optimal plan. This process actually traverses all possible transfer paths and compares the total cost to find the optimal solution, while ensuring the safe operation of the system under constraints. The calculation of load transfer involves the accumulation of load transfers in multiple time periods. It is not the load transfer at a single moment, but the sum of the load transfers in the entire process.

[0078] Minimize the total load of the transfer scheme for:

[0079] ;

[0080] Among them, transferred load is the load transfer amount;

[0081] The constraints include ensuring that the load rate of each line does not exceed the rated load and ensuring priority power supply to dual-power users; avoiding the same substation from providing power to dual-power users, and giving priority to lines with lower load rates.

[0082] The goal and principle of the above algorithm is to optimize the operation of the distribution network in the case of 10kV busbar voltage loss or maintenance to:

[0083] Minimize total operating costs: Minimize overall costs by optimizing the transfer path, reducing line losses and switch operation costs.

[0084] Minimize the total load of the transfer scheme: During the transfer process, minimize the load transfer of the transfer scheme to maintain system stability.

[0085] Reduce the scope of power outages: Prioritize restoring power supply to important users and reduce the impact on the power supply area.

[0086] Ensure system stability: avoid line overload and ensure reasonable load distribution.

[0087] The above algorithm data preparation includes input data:

[0088] 10kV line information: line number, actual load, rated load, line status, contact point and other information.

[0089] Substation information: substation number, capacity, location, equipment information, number of feeders, number of public and private transformers, etc.

[0090] Load data: actual load demand of each user and line, load curve, 96-point load, current, and voltage measurement data.

[0091] Contact relationship data: contact relationship between different 10kV lines (contact points include switches, transformers, contact lines, etc.).

[0092] Priority strategy: including load priority and line selection strategy, to ensure that the power supply for important users of dual power supply comes from different substations.

[0093] In some embodiments, the 10kV busbar voltage loss or maintenance and the substation ledger information are used to generate the 10kV busbar voltage loss or maintenance power supply plan using the optimal distribution network operation algorithm, including:

[0094] Initialize, mark all lines and substations as unused, load input data, including line information, load data, substation information and priority strategy; and initialize the power supply plan list to be empty;

[0095] Select the transfer path. For each voltage-depleted line, select the transfer path according to the following formulas for minimizing total load transfer, minimizing power loss and operating cost. Among the possible transfer paths, the path with the smallest load transfer is preferred. The formulas for minimizing total load transfer, minimizing power loss and operating cost are:

[0096] ;

[0097] ;

[0098] Among them, transferred load is the load transfer amount, and possible transferred loads is the load transfer amount corresponding to all possible transfer paths;

[0099] Load distribution, after selecting the transfer path, calculate the load transfer to ensure that the new load rate does not exceed the rated load. The new load rate calculation formula is:

[0100] ;

[0101] Among them, Original_load is the original load and Rated load is the rated load.

[0102] Verify the plan, check all transfer plans, verify whether there is excessive load transfer in the transfer plan, whether the power loss is within the acceptable range, whether the number of switching operations is minimized, and whether dual power users are given priority;

[0103] Optimization and adjustment: if the load rate of a line exceeds the standard, reselect the transfer path and adjust the load transfer amount;

[0104] Outputting the results, outputting the optimized power transfer plan, the power transfer plan including the load distribution, power transfer path and corresponding cost of each line;

[0105] As well as the system output power transfer plan and visual topology relationship, it lists the load distribution, transfer path, load rate, and estimated losses and costs of each line.

[0106] In the above generation process, dual optimization goals are achieved, and the total load transfer and total operating costs are minimized at the same time to ensure stable system operation and economic efficiency; flexibility supports users to make manual adjustments based on actual needs to deal with special situations; automated intelligent generation reduces manual intervention through optimization algorithms and improves the efficiency and accuracy of plan generation.

[0107] This application can minimize the load transfer and operating costs by considering the dual minimization of load transfer and operating costs. The optimization algorithm can ensure efficient load distribution when the 10kV bus loses voltage or is under maintenance, guarantee power supply to important users, and minimize the cost and risk of power system operation.

[0108] In one embodiment, the analysis and processing module is also used to:

[0109] Count the number of feeders under the 10kV bus, the number of public and private transformers involved, the number of important users, the number of medium-voltage users, the number of low-voltage users, the number of ring network points, the number of ring network points on different buses, the number of inter-station ring network points and the number of connectable points.

[0110] In one embodiment, the parameter setting module is further used to:

[0111] Automatically generate danger points and preventive control measures according to the priority strategy, the load rate limit of the opposite line and the power transfer sequence strategy; and manually revise the automatically generated danger points and preventive control measures;

[0112] Parameter reset, wherein the parameter reset includes resetting the transfer strategy information modified by the user.

[0113] In one embodiment, the analysis and processing module is further used for:

[0114] According to the 10kV line powered by the 10kV bus, the connection relationship of the 10kV line, the substation ledger information and the load data, combined with the 96-point load, current and voltage measurement data, a power supply transfer plan for the 10kV bus in case of voltage loss or maintenance is generated.

[0115] In one embodiment, the analysis and processing module is further used for:

[0116] Based on the fact that the incoming line does not exceed the preset load rate, the 10kV busbar voltage loss or maintenance power supply plan is generated.

[0117] In one embodiment, the analysis and processing module is further used for:

[0118] The 10kV busbar voltage loss or maintenance power supply plan is generated according to the superimposed current of the current of the outgoing line and the incoming line; for:

[0119] ;

[0120] in, , is the active and reactive power of the outgoing line, , is the active and reactive power transferred into the line, is the line voltage.

[0121] In a three-phase power system, apparent power (S) indicates the total power provided by the power supply to the load, which includes active power (P) and reactive power (Q). The unit of apparent power is volt-ampere (VA), and its calculation formula is as follows: . Where U and I represent the line voltage and line current respectively. The relationship between apparent power and active power and reactive power is represented by the power triangle: .

[0122] Therefore, the superimposed current I of the currents of the outgoing and incoming lines can be calculated using the sum of the active power and the sum of the reactive power of the outgoing and incoming lines.

[0123] In one embodiment, the data statistics module is further used to obtain the feeder ring network point information of the substation, and generate a feeder ring network point quick lookup table according to the obtained feeder ring network point information of the substation;

[0124] The interface display interaction module includes:

[0125] The organizational tree display component is used to display the departments and substation information under the power supply company to which the logged-in personnel are authorized. Among them, the local dispatching network dispatching service command team only displays the substations in the local dispatching management area, and the county dispatching network dispatching service command team only displays the substations in the county dispatching management area;

[0126] The busbar pressure loss or maintenance power supply transfer plan list display component is used to display the busbar pressure loss or maintenance power supply transfer plan under the organization and substation selected by the user;

[0127] And a plan improvement component is used to generate a voltage loss transfer plan based on the feeder ring network point quick lookup table, support users to modify the voltage loss transfer plan, and improve the plan information.

[0128] In one embodiment, the present application further provides a method for automatically generating a 10kV busbar voltage loss or maintenance power supply transfer plan for the system as described above, comprising:

[0129] S1: Set the power transfer priority strategy and the load rate limit of the opposite line;

[0130] The transfer priority strategy includes: when there is a distributed power source participating in the power restoration in the transfer path, the transfer path of the non-distributed power source is given priority; when the line of the transfer path is overloaded, the overloaded line is placed at the end; when the line of the transfer path is not overloaded, the transfer path through the section switch in the switch station or the dedicated tie line switch between stations is given priority, and the load is not judged to ensure that the transfer power supply and the existing power supply of the dual power supply user are not from the same substation; the calculation formula of the load rate is: load rate = actual load / rated load × 100%;

[0131] S2: Obtain the 10kV line powered by the 10kV bus, the 10kV line contact relationship, the substation account information and the actual load data;

[0132] S3: Analyze the connection relationship between the 10kV line powered by the 10kV bus and the 10kV line, generate a connection topology relationship, and according to the 10kV bus voltage loss or maintenance and the substation ledger information, use the distribution network operation optimal algorithm to generate the 10kV bus voltage loss or maintenance power supply plan;

[0133] S4: Analyze the load rate of each line according to the actual load and rated load data to ensure that the load in the transfer plan does not exceed the carrying capacity of the line;

[0134] And S5: display and export the 10kV busbar voltage loss or maintenance power supply plan.

[0135] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 3 As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a method for automatically generating a 10kV busbar voltage loss or maintenance power supply plan is implemented.

[0136] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 4 As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. Among them, the processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a method for automatically generating a 10kV busbar voltage loss or maintenance power supply plan is implemented. The display unit of the computer device is used to form a visually visible image, and can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer covered on the display screen, or a button, trackball or touchpad set on the computer device casing, or an external keyboard, touchpad or mouse, etc.

[0137] Those skilled in the art will understand that Figure 3 and Figure 4The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0138] In one embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

[0139] In one embodiment, a computer-readable storage medium is provided, storing a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0140] In one embodiment, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps in the above method embodiments are implemented.

[0141] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions.

[0142] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment method can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in any type of volatile or non-volatile storage device, or a combination thereof. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache.By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDR AM), enhanced synchronous dynamic random access memory (ESDRAM Enhanced Synchronous Dynamic Random Access Memory), synchronous link dynamic random access memory (SLDRAM), direct memory bus random access memory (DRRAM). The storage media described in the embodiments of the present invention are intended to include, but are not limited to, these and any other suitable types of memory.

[0143] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0144] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A system for automatically generating emergency plans for power supply transfer in case of voltage loss or maintenance of 10kV busbar, characterized in that: include: Parameter setting module, used to set the power transfer priority strategy and the load rate limit of the opposite line; The transfer priority strategy includes: when there is a distributed power source participating in the power restoration in the transfer path, the transfer path of the non-distributed power source is given priority; when the line of the transfer path is overloaded, the overloaded line is placed at the end; when the line of the transfer path is not overloaded, the transfer path through the section switch in the switch station or the dedicated tie line switch between stations is given priority, and the load is not judged to ensure that the transfer power supply and the existing power supply of the dual power supply user are not from the same substation; the calculation formula of the load rate is: load rate = actual load / rated load × 100%; A data statistics module is used to obtain the 10kV lines powered by the 10kV bus, the 10kV line connection relationship, the substation ledger information and the actual load data; The analysis and processing module is used to analyze the connection relationship between the 10kV line powered by the 10kV bus and the 10kV line, generate a connection topology relationship, and use the optimal distribution network operation algorithm to generate a power transfer plan for the 10kV bus when the bus loses voltage or is under maintenance according to the 10kV bus and the substation ledger information; the analysis and processing module is also used to analyze the load rate of each line according to the actual load and rated load data to ensure that the load in the transfer plan does not exceed the carrying capacity of the line; And an interface display interaction module, used to display and export the 10kV busbar voltage loss or maintenance power supply plan; The optimal algorithm for distribution network operation includes: The objective function is to minimize the total operating cost : ； in, P loss is the normalized power loss cost, C operation is the normalized switching operation cost, C load transfer is the cost of load transfer after normalization; Minimize the total load of the transfer scheme for: ； Among them, transferred load is the load transfer amount; The constraints include: the load rate of each line does not exceed the rated load; ensuring priority power supply to dual-power users; avoiding the same substation from providing power to dual-power users; and giving priority to lines with lower load rates.

2. The automatic generation system for 10kV busbar voltage loss or maintenance power supply plan according to claim 1 is characterized in that: The 10kV busbar voltage loss or maintenance plan is generated based on the 10kV busbar voltage loss or maintenance and the substation ledger information by using the optimal distribution network operation algorithm, including: Initialize, mark all lines and substations as unused, load input data, including line information, load data, substation information and priority strategy; and initialize the power supply plan list to be empty; Select the transfer path. For each voltage-depleted line, select the transfer path according to the following formulas for minimizing total load transfer, minimizing power loss and operating cost. Among the possible transfer paths, the path with the smallest load transfer is preferred. The formulas for minimizing total load transfer, minimizing power loss and operating cost are: ； ； Among them, transferred load is the load transfer amount, and possible transferred loads is the load transfer amount corresponding to all possible transfer paths; Load distribution, after selecting the transfer path, calculate the load transfer to ensure that the new load rate does not exceed the rated load. The new load rate calculation formula is: ； Among them, Original_load is the original load, and Rated load is the rated load; Verify the plan, check all transfer plans, verify whether there is excessive load transfer in the transfer plan, whether the power loss is within the acceptable range, whether the number of switching operations is minimized, and whether dual power users are given priority; Optimization and adjustment: if the load rate of a line exceeds the standard, reselect the transfer path and adjust the load transfer amount; Outputting the results, outputting the optimized power transfer plan, the power transfer plan including the load distribution, power transfer path and corresponding cost of each line; As well as the system output power transfer plan and visual topology relationship, it lists the load distribution, transfer path, load rate, and estimated losses and costs of each line.

3. The automatic generation system for 10kV busbar voltage loss or maintenance power supply plan according to claim 2 is characterized in that: The parameter setting module is also used for: Generating dangerous points and preventive control measures according to the power transfer priority strategy and the side line load rate limit; and manually revising the dangerous points and preventive control measures; And parameter resetting, wherein the parameter resetting includes resetting the transfer strategy information modified by the user.

4. The automatic generation system for 10kV busbar voltage loss or maintenance power supply plan according to claim 3 is characterized in that: The analysis and processing module is also used for: Based on the fact that the incoming line does not exceed the preset load rate, the 10kV busbar voltage loss or maintenance power supply plan is generated.

5. The automatic generation system of 10kV busbar voltage loss or maintenance power supply plan according to claim 4 is characterized in that: The analysis and processing module is also used for: The 10kV busbar voltage loss or maintenance power supply plan is generated according to the superimposed current of the current of the outgoing line and the incoming line; for: ； in, , is the active and reactive power of the outgoing line, , is the active and reactive power transferred into the line, is the line voltage.

6. The automatic generation system for 10kV busbar voltage loss or maintenance power supply plan according to claim 5 is characterized in that: The data statistics module is also used to obtain the substation feeder ring network point information, and generate a feeder ring network point quick lookup table based on the obtained substation feeder ring network point information; The interface display interaction module includes: The organizational tree display component is used to display the departments and substation information under the power supply company to which the logged-in personnel are authorized. Among them, the local dispatching network dispatching service command team only displays the substations in the local dispatching management area, and the county dispatching network dispatching service command team only displays the substations in the county dispatching management area; The busbar pressure loss or maintenance power supply transfer plan list display component is used to display the busbar pressure loss or maintenance power supply transfer plan under the organization and substation selected by the user; And a plan improvement component is used to generate a voltage loss or maintenance power transfer plan based on the feeder ring network point quick lookup table, support users to modify the voltage loss or maintenance power transfer plan, and improve the plan information.

7. A method for automatically generating a 10kV busbar voltage loss or maintenance power supply plan for the system according to any one of claims 1 to 6, characterized in that: include: Set the power transfer priority strategy and the load rate limit of the opposite line; The transfer priority strategy includes: when there is a distributed power source participating in the power restoration in the transfer path, the transfer path of the non-distributed power source is given priority; when the line of the transfer path is overloaded, the overloaded line is placed at the end; when the line of the transfer path is not overloaded, the transfer path through the section switch in the switch station or the dedicated tie line switch between stations is given priority, and the load is not judged to ensure that the transfer power supply and the existing power supply of the dual power supply user are not from the same substation; the calculation formula of the load rate is: load rate = actual load / rated load × 100%; Obtain the 10kV line powered by the 10kV bus, the 10kV line contact relationship, the substation ledger information and the actual load data; Analyze the connection relationship between the 10kV line powered by the 10kV bus and the 10kV line, generate a connection topology relationship, and according to the 10kV bus voltage loss or maintenance and the substation ledger information, use the distribution network operation optimal algorithm to generate the 10kV bus voltage loss or maintenance power supply plan; Analyze the load factor of each line based on the actual load and rated load data to ensure that the load in the transfer plan does not exceed the carrying capacity of the line; And display and export the 10kV busbar voltage loss or maintenance power supply transfer plan.

8. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method according to claim 7 is implemented.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to claim 7 is implemented.

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