Line load transfer method and device of distribution line, equipment and storage medium

Abstract

The invention relates to a line load transfer method and device of a distribution line, equipment and a storage medium. The method comprises the steps of obtaining historical load information, power grid architecture data and installation user information, obtaining a simultaneous coefficient according to the installation user information, obtaining a load growth rate according to the historical load information, and obtaining a line load prediction value associated with each distribution line based on the simultaneous coefficient and the load growth rate, under the condition that the power grid architecture data represents that the first power distribution line and the second power distribution line are connected, a first line load prediction value, a second line load prediction value and a to-be-transferred load are obtained, and the to-be-transferred load is obtained according to the first line load prediction value, the second line load prediction value and the to-be-transferred load; respectively obtaining a first line load rate and a second line load rate, and finally determining a line load transfer result according to the first line load rate and the second line load rate. By adopting the method, the accuracy and fineness of line load transfer can be improved.

Description

Technical Field

[0001] The present application relates to the field of power system engineering, and in particular to a method, device, computer equipment, computer-readable storage medium and computer program product for transferring line load of a distribution line. Background Art

[0002] With the increasing demand for electricity and the increasing complexity of the power grid structure, in order to ensure the normal supply of electricity, it is necessary to transfer the line load of the distribution line. The traditional line load transfer of distribution lines often relies on empirical rules and fixed patterns. The use of traditional line load transfer methods can provide a relatively accurate and stable prediction method, and the use of fixed models for analysis can simplify the analysis process of complex line load states and reduce computational complexity.

[0003] However, the current traditional method of line load transfer for distribution lines has the problem that the line load transfer is not accurate and precise enough. Summary of the invention

[0004] Based on this, it is necessary to provide a line load transfer method, device, computer equipment, computer-readable storage medium and computer program product for distribution lines that can improve the accuracy and precision of line load transfer in response to the above-mentioned technical problems.

[0005] In a first aspect, the present application provides a method for transferring line load of a distribution line, comprising:

[0006] Obtain the historical load information, grid architecture data and registered user information of each distribution line of the distribution network to be transferred;

[0007] The simultaneous coefficient of each distribution line is obtained according to the registered user information, and the load growth rate of each distribution line is obtained according to the historical load information, and the line load forecast value associated with each distribution line is obtained based on the simultaneous coefficient and the load growth rate; the simultaneous coefficient is used to characterize the power load characteristics of each distribution line;

[0008] When the grid architecture data indicates that the first distribution line and the second distribution line are connected, a first line load forecast value associated with the first distribution line, a second line load forecast value associated with the second distribution line, and a preset load to be transferred are obtained; the load to be transferred is the line load value of the first distribution line pre-cut into the second distribution line;

[0009] According to the first line load prediction value, the second line load prediction value and the load to be transferred, respectively obtaining a first line load rate corresponding to the first distribution line and a second line load rate corresponding to the second distribution line;

[0010] A line load transfer result of the load to be transferred is determined according to the first line load rate and the second line load rate.

[0011] In one embodiment, according to the first line load prediction value, the second line load prediction value and the load to be transferred, respectively obtaining a first line load rate associated with the first distribution line and a second line load rate associated with the second distribution line includes:

[0012] Obtaining a first line load rate corresponding to the first distribution line based on the first line load prediction value, the load to be transferred, and a first line load threshold associated with the first distribution line;

[0013] The second line load rate corresponding to the second distribution line is obtained according to the second line load prediction value, the load to be transferred, and the second line load threshold associated with the second distribution line.

[0014] In one embodiment, determining a line load transfer result of the load to be transferred according to the first line load rate and the second line load rate includes:

[0015] When the first line load rate is less than or equal to the preset load rate and the second line load rate is less than or equal to the preset load rate, determining that the line load transfer of the load to be transferred is successful;

[0016] When the load rate of the first line is less than or equal to the preset load rate and the load rate of the second line is greater than the preset load rate, it is determined that the line load transfer of the load to be transferred fails, and the second distribution line is marked as a non-switching line; the non-switching line represents a distribution line to which the load to be transferred cannot be transferred;

[0017] When the first line load rate is greater than the preset load rate and the second line load rate is greater than the preset load rate, it is determined that the line load transfer of the load to be transferred has failed, and the second distribution line is marked as a non-switching line.

[0018] In one embodiment, the method further includes: when the load rate of the first line is greater than a preset load rate and the load rate of the second line is less than or equal to the preset load rate, increasing the load to be transferred.

[0019] In an exemplary embodiment, the reported user information includes the number of line users, the average power consumption of the users, the maximum power consumption of the users, and the time proportion of the maximum power consumption of the users;

[0020] The simultaneous coefficient of each distribution line is obtained according to the reported user information, including:

[0021] The average power consumption of users is summed up by the number of line users to obtain the actual power consumption of line users;

[0022] The maximum power consumption of line users is obtained by summing the product of the maximum power consumption of users and the time proportion using the number of line users;

[0023] The ratio of the actual power consumption of line users to the maximum power consumption of line users is used as the simultaneity coefficient of each distribution line.

[0024] In one embodiment, the historical load information includes historical information and an average load growth rate;

[0025] The load growth rate of each distribution line is obtained based on historical load information, including:

[0026] The ratio of the average load growth rate to the historical information is used as the annual average load growth rate of each distribution line;

[0027] The historical information is used to sum the annual average load growth rate to obtain the load growth rate of each distribution line.

[0028] In one embodiment, based on the simultaneity coefficient and the load growth rate, a line load forecast value associated with each distribution line is obtained, including:

[0029] Obtain the maximum load of each distribution line and the maximum load of users;

[0030] According to the maximum load, load growth rate, maximum user load and simultaneity coefficient of each distribution line, the line load forecast value associated with each distribution line is obtained.

[0031] In a second aspect, the present application further provides a line load transfer device for a distribution line, comprising:

[0032] An acquisition module is used to obtain historical load information, grid architecture data and registered user information of each distribution line of the distribution network to be transferred;

[0033] The prediction value acquisition module is used to obtain the simultaneous coefficient of each distribution line according to the information of the registered user, and obtain the load growth rate of each distribution line according to the historical load information, and obtain the line load prediction value associated with each distribution line based on the simultaneous coefficient and the load growth rate; the simultaneous coefficient is used to characterize the power load characteristics of each distribution line;

[0034] A prediction value determination module is used to obtain a first line load prediction value associated with the first distribution line, a second line load prediction value associated with the second distribution line, and a preset load to be transferred when the power grid architecture data indicates that the first distribution line and the second distribution line are connected; the load to be transferred is the line load value of the first distribution line pre-cut into the second distribution line;

[0035] A load rate determination module, used to obtain a first line load rate corresponding to the first distribution line and a second line load rate corresponding to the second distribution line according to the first line load prediction value, the second line load prediction value and the load to be transferred;

[0036] The transfer result determination module is used to determine the line load transfer result of the load to be transferred according to the first line load rate and the second line load rate.

[0037] In a third aspect, the present application further provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0038] Obtain the historical load information, grid architecture data and registered user information of each distribution line of the distribution network to be transferred;

[0039] The simultaneous coefficient of each distribution line is obtained according to the registered user information, and the load growth rate of each distribution line is obtained according to the historical load information, and the line load forecast value associated with each distribution line is obtained based on the simultaneous coefficient and the load growth rate; the simultaneous coefficient is used to characterize the power load characteristics of each distribution line;

[0040] When the grid architecture data indicates that the first distribution line and the second distribution line are connected, a first line load forecast value associated with the first distribution line, a second line load forecast value associated with the second distribution line, and a preset load to be transferred are obtained; the load to be transferred is the line load value of the first distribution line pre-cut into the second distribution line;

[0041] According to the first line load prediction value, the second line load prediction value and the load to be transferred, respectively obtaining a first line load rate corresponding to the first distribution line and a second line load rate corresponding to the second distribution line;

[0042] A line load transfer result of the load to be transferred is determined according to the first line load rate and the second line load rate.

[0043] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the following steps are implemented:

[0044] Obtain the historical load information, grid architecture data and registered user information of each distribution line of the distribution network to be transferred;

[0045] The simultaneous coefficient of each distribution line is obtained according to the registered user information, and the load growth rate of each distribution line is obtained according to the historical load information, and the line load forecast value associated with each distribution line is obtained based on the simultaneous coefficient and the load growth rate; the simultaneous coefficient is used to characterize the power load characteristics of each distribution line;

[0046] When the grid architecture data indicates that the first distribution line and the second distribution line are connected, a first line load forecast value associated with the first distribution line, a second line load forecast value associated with the second distribution line, and a preset load to be transferred are obtained; the load to be transferred is the line load value of the first distribution line pre-cut into the second distribution line;

[0047] According to the first line load prediction value, the second line load prediction value and the load to be transferred, respectively obtaining a first line load rate corresponding to the first distribution line and a second line load rate corresponding to the second distribution line;

[0048] A line load transfer result of the load to be transferred is determined according to the first line load rate and the second line load rate.

[0049] In a fifth aspect, the present application further provides a computer program product, including a computer program, which implements the following steps when executed by a processor:

[0050] Obtain the historical load information, grid architecture data and registered user information of each distribution line of the distribution network to be transferred;

[0051] The simultaneous coefficient of each distribution line is obtained according to the registered user information, and the load growth rate of each distribution line is obtained according to the historical load information, and the line load forecast value associated with each distribution line is obtained based on the simultaneous coefficient and the load growth rate; the simultaneous coefficient is used to characterize the power load characteristics of each distribution line;

[0052] When the grid architecture data indicates that the first distribution line and the second distribution line are connected, a first line load forecast value associated with the first distribution line, a second line load forecast value associated with the second distribution line, and a preset load to be transferred are obtained; the load to be transferred is the line load value of the first distribution line pre-cut into the second distribution line;

[0053] According to the first line load prediction value, the second line load prediction value and the load to be transferred, respectively obtaining a first line load rate corresponding to the first distribution line and a second line load rate corresponding to the second distribution line;

[0054] A line load transfer result of the load to be transferred is determined according to the first line load rate and the second line load rate.

[0055] The line load transfer method, device, computer equipment, computer-readable storage medium and computer program product of the above-mentioned distribution line obtain the historical load information, power grid architecture data and registered user information of each distribution line of the distribution network to be transferred, obtain the simultaneity coefficient of each distribution line according to the registered user information, and obtain the load growth rate of each distribution line according to the historical load information, and obtain the line load prediction value associated with each distribution line based on the simultaneity coefficient and the load growth rate, and then obtain the first line load prediction value associated with the first distribution line, the second line load prediction value associated with the second distribution line and the pre-set first distribution line pre-cut into the second distribution line to be transferred when the power grid architecture data indicates that the first distribution line and the second distribution line are connected, and obtain the first line load prediction value associated with the first distribution line, the second line load prediction value associated with the second distribution line and the pre-set first distribution line to be transferred. According to the first line load prediction value, the second line load prediction value and the load to be transferred, the first line load rate corresponding to the first distribution line and the second line load rate corresponding to the second distribution line are respectively obtained, and finally, according to the first line load rate and the second line load rate, the line load transfer result of the load to be transferred is determined. The line load prediction value is calculated by acquiring historical data related to the line load of the distribution line, thereby improving the prediction accuracy of the line load prediction value. Then, when the power grid data represents that two distribution lines are connected, the line load rate after cutting in is calculated based on the line load prediction values ​​of the above two lines and the pre-cut-in load to be transferred, and whether the line load transfer is successful is judged based on the line load rate after cutting in, thereby improving the accuracy and precision of the line load transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0057] FIG1 is an application environment diagram of a method for transferring line load of a power distribution line in one embodiment;

[0058] FIG2 is a schematic flow chart of a method for transferring line load of a power distribution line in one embodiment;

[0059] FIG3 is a schematic diagram of a power grid structure in another embodiment;

[0060] FIG4 is a structural block diagram of a line load transfer device for a distribution line in one embodiment;

[0061] FIG. 5 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0063] The line load transfer method of the distribution line provided in the embodiment of the present application can be applied to the application environment shown in Figure 1. The distribution network communicates with the server 102 through a communication network. The data storage system can store data that the server 102 needs to process. The data storage system can be integrated on the server 102, or it can be placed on the cloud or other network servers. The server 102 obtains the historical load information, grid architecture data and user information of each distribution line of the distribution network to be transferred through the communication network, obtains the simultaneous coefficient of each distribution line according to the user information, and obtains the load growth rate of each distribution line according to the historical load information, and obtains the line load prediction value associated with each distribution line based on the simultaneous coefficient and the load growth rate, wherein the simultaneous coefficient is used to characterize the power load characteristics of each distribution line, and when the grid architecture data indicates that the first distribution line and the second distribution line are connected, obtains the first line load prediction value associated with the first distribution line, the second line load prediction value associated with the second distribution line, and the load to be transferred that the first distribution line pre-cuts into the second distribution line, and then obtains the first line load rate corresponding to the first distribution line and the second line load rate corresponding to the second distribution line according to the first line load prediction value, the second line load prediction value and the load to be transferred, and finally determines the line load transfer result of the load to be transferred according to the first line load rate and the second line load rate. Among them, the server 102 can be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server providing cloud computing services.

[0064] In an exemplary embodiment, as shown in FIG2 , a method for transferring line load of a distribution line is provided, and the method is applied to the server 102 in FIG1 as an example for description, and includes the following steps S201 to S205. Among them:

[0065] Step S201, obtaining historical load information, grid architecture data and registered user information of each distribution line of the distribution network to be transferred.

[0066] Among them, historical load information can be understood as the load data of the power load transported on various distribution lines in the past period of time, the grid architecture data can be understood as the grid topology map, including distribution lines, transmission nodes and power consumption nodes; the reported user information can be understood as various data and information related to the user's access and use of electricity or energy, which may include user basic information, access information and meter information.

[0067] Optionally, server 102 obtains historical load information, grid architecture data and reported user information of each distribution line of the distribution network to be transferred through the communication network, laying a data foundation for the subsequent calculation of the line load forecast value associated with each distribution line, thereby speeding up the calculation speed of the line load forecast value.

[0068] Step S202, obtaining the simultaneity coefficient of each distribution line according to the reported user information, and obtaining the load growth rate of each distribution line according to the historical load information, and obtaining the line load forecast value associated with each distribution line based on the simultaneity coefficient and the load growth rate; the simultaneity coefficient is used to characterize the power load characteristics of each distribution line.

[0069] Among them, the simultaneity coefficient can be understood as the power load characteristics of users on each distribution line, such as whether the power consumption peaks at night or during the day and other related load characteristics; the load growth rate can be understood as the growth rate of a certain power load (such as power demand or power consumption) in a specific time period, usually expressed as a percentage; the line load forecast value can be understood as the load that can be transported within the distribution line in the future.

[0070] For example, the server 102 calculates the simultaneous coefficient of each distribution line according to the information of the registered user, and calculates the load growth rate of each distribution line according to the historical load information, and further obtains the line load forecast value associated with each distribution line based on the simultaneous coefficient and the load growth rate. By combining the historical data information of each distribution line and the registered user information to obtain the relevant calculation coefficient, and further calculating the line load forecast value of each distribution line in the future period of time according to the calculation coefficient, the line load forecast value obtained by the above means is more accurate, and lays a data foundation for the subsequent line load transfer.

[0071] Step S203, when the power grid architecture data indicates that the first distribution line and the second distribution line are connected, obtain a first line load forecast value associated with the first distribution line, a second line load forecast value associated with the second distribution line, and a pre-set load to be transferred; the load to be transferred is the line load value of the first distribution line pre-cut into the second distribution line.

[0072] The load to be transferred can be understood as the line load value of the first distribution line pre-cut into the second distribution line, and the load value range of the load to be transferred is within the interval from zero to the predicted value of the first line load.

[0073] Optionally, when the network topology diagram formed by the power grid architecture data represents that the first distribution line and the second distribution line are connected, the first line load forecast value associated with the first distribution line, the second line load forecast value associated with the second distribution line, and the preset load to be transferred are obtained. Line load transfer can only be performed when the two distribution lines are connected, which reduces the resource cost of obtaining the relevant line load forecast values ​​and lays a data foundation for the subsequent calculation of the line load rate.

[0074] Step S204, obtaining a first line load rate corresponding to the first distribution line and a second line load rate corresponding to the second distribution line according to the first line load prediction value, the second line load prediction value and the load to be transferred.

[0075] Step S205: determining a line load transfer result of the load to be transferred according to the first line load rate and the second line load rate.

[0076] Among them, the first line load rate can be understood as the current predicted line load rate of the first distribution line after the load to be transferred is cut into the second distribution line; similarly, the second line load rate can be understood as the current assumed line load rate of the second distribution line after the second distribution line receives the load to be transferred. It can be known that the first line load rate and the second line load rate here are not the actual load rates of the lines.

[0077] For example, the server 102 obtains the first line load rate corresponding to the first distribution line and the second line load rate corresponding to the second distribution line according to the first line load prediction value, the second line load prediction value and the load to be transferred, and finally determines the line load transfer result of the load to be transferred according to the first line load rate and the second line load rate, that is, determines whether to allow the load to be transferred to be cut into the second distribution line. By calculating the predicted line load value and the predicted cut-in of the load to be transferred, and determining whether to allow the cut-in according to the first line load rate and the second line load rate after the cut-in, the accuracy and precision of the line load transfer are enhanced, and the system robustness of the entire distribution network system is improved.

[0078] In the line load transfer method of the above-mentioned distribution line, the historical load information, grid architecture data and registered user information of each distribution line of the distribution network to be transferred are obtained, the simultaneity coefficient of each distribution line is obtained according to the registered user information, and the load growth rate of each distribution line is obtained according to the historical load information, and based on the simultaneity coefficient and the load growth rate, the line load prediction value associated with each distribution line is obtained, and then, when the grid architecture data indicates that the first distribution line and the second distribution line are connected, the first line load prediction value associated with the first distribution line, the second line load prediction value associated with the second distribution line and the pre-set first distribution line to be transferred pre-cut into the second distribution line are obtained, and the first line load rate corresponding to the first distribution line and the second line load rate corresponding to the second distribution line are obtained according to the first line load prediction value, the second line load prediction value and the load to be transferred, respectively, and finally, the line load transfer result of the load to be transferred is determined according to the first line load rate and the second line load rate. The line load prediction value is calculated by acquiring historical data related to the line load of the distribution line, thereby improving the prediction accuracy of the line load prediction value. Then, when the power grid data represents that two distribution lines are connected, the line load rate after cutting in is calculated based on the line load prediction values ​​of the above two lines and the pre-cut-in load to be transferred, and whether the line load transfer is successful is judged based on the line load rate after cutting in, thereby improving the accuracy and precision of the line load transfer.

[0079] In one embodiment, according to the first line load prediction value, the second line load prediction value and the load to be transferred, respectively obtaining a first line load rate associated with the first distribution line and a second line load rate associated with the second distribution line includes:

[0080] Obtaining a first line load rate corresponding to the first distribution line based on the first line load prediction value, the load to be transferred, and a first line load threshold associated with the first distribution line;

[0081] The second line load rate corresponding to the second distribution line is obtained according to the second line load prediction value, the load to be transferred, and the second line load threshold associated with the second distribution line.

[0082] Among them, the first line load threshold can be understood as the maximum load value of the line load that the first distribution line can accommodate. Exceeding this value may bring the risk of leakage; similarly, the second line load threshold can be understood as the maximum load value of the line load that the second distribution line can accommodate. Exceeding this value may bring the risk of leakage.

[0083] Optionally, the load to be transferred is subtracted from the load prediction value of the first line to obtain the load prediction value of the first line after the line load is cut out, and then the ratio of the first line load prediction value after the line load is cut out to the first line load threshold associated with the first distribution line is used as the first line load rate corresponding to the first distribution line; similarly, the second line load prediction is added to the load to be transferred to obtain the second line load prediction value after the line load is cut in, and then the ratio of the second line load prediction value after the line load is cut in to the second line load threshold associated with the second distribution line is used as the second line load rate corresponding to the second distribution line. Calculating the line load rate after the load transfer in advance in the above manner is helpful for planning the load transfer, and secondly, it can effectively reduce the risk of line overload or severe overload, thereby enhancing the stability of the distribution system and the reliability of power supply.

[0084] In one embodiment, determining a line load transfer result of the load to be transferred according to the first line load rate and the second line load rate includes:

[0085] When the first line load rate is less than or equal to the preset load rate and the second line load rate is less than or equal to the preset load rate, determining that the line load transfer of the load to be transferred is successful;

[0086] When the load rate of the first line is less than or equal to the preset load rate and the load rate of the second line is greater than the preset load rate, it is determined that the line load transfer of the load to be transferred fails, and the second distribution line is marked as a non-switching line; the non-switching line represents a distribution line to which the load to be transferred cannot be transferred;

[0087] When the first line load rate is greater than the preset load rate and the second line load rate is greater than the preset load rate, it is determined that the line load transfer of the load to be transferred has failed, and the second distribution line is marked as a non-switching line.

[0088] Among them, the preset load rate can be understood as the line load rate when the line is heavily overloaded. It can be known that when the line is heavily overloaded, the line is actually in an overloaded state and the line may heat up. The line load rate at this time is slightly smaller than the line load rate when the line is overloaded; the unavailable line can be understood as after the load to be transferred is cut into the distribution line, the line load rate of the distribution line is greater than the preset load rate, which means that the distribution line cannot accommodate the corresponding load to be transferred.

[0089] For example, when the load rate of the first line is less than or equal to the preset load rate, and the load rate of the second line is less than or equal to the preset load rate, that is, after the load transfer of the load to be transferred, the line load rates of the two distribution lines do not exceed the line load rate when the load is heavily overloaded, indicating that the line load transfer of the load to be transferred is successful, and the line load transfer of the load to be transferred can be performed; when the load rate of the first line is less than or equal to the preset load rate, and the load rate of the second line is greater than the preset load rate, that is, after the load transfer of the load to be transferred, the first line load rate of the first distribution line does not exceed the line load rate when the load is heavily overloaded, and the second line load rate of the second distribution line exceeds the line load rate when the load is heavily overloaded. line load rate, at this time, the line load transfer of the load to be transferred fails, the second distribution line cannot accommodate the load to be transferred, and the second distribution line is marked as a non-cut-in line, and the line load transfer of the load to be transferred cannot be performed; when the first line load rate is greater than the preset load rate, and the second line load rate is greater than the preset load rate, that is, after the load transfer of the load to be transferred, the line load rates of the two distribution lines exceed the line load rates during heavy overload, indicating that the line load transfer of the load to be transferred fails, the second distribution line cannot accommodate the load to be transferred, and the second distribution line is marked as a non-cut-in line, and the line load transfer of the load to be transferred cannot be performed.

[0090] By setting the load rate judgment conditions, we can ensure that the line load rate of the distribution lines involved in load transfer will not be overloaded, avoid equipment damage and safety accidents, ensure the safety of the power supply system, and conduct real-time monitoring based on the load rate to make the load distribution more reasonable, effectively optimize the allocation of power resources, and improve power utilization efficiency.

[0091] In an exemplary embodiment, the method further includes: when the load rate of the first line is greater than a preset load rate and the load rate of the second line is less than or equal to the preset load rate, increasing the load to be transferred.

[0092] Optionally, in addition to the above three situations, there is another situation - when the load rate of the first line is greater than the preset load rate and the load rate of the second line is less than or equal to the preset load rate, the load value of the load to be transferred can be appropriately increased on the premise that it is less than or equal to the predicted value of the load of the first line, and then the relevant line load rate can be recalculated to observe whether it falls into the above three situations and handle it according to the corresponding strategy. In load transfer management, if the load rate of the first line is higher than the preset standard and the load rate of the second line meets the preset situation, the flexibility and reliability of the power system can be improved by appropriately adjusting the load value of the load to be transferred and recalculating the load rate.

[0093] In one embodiment, the reported user information includes the number of line users, the average power consumption of the users, the maximum power consumption of the users, and the time proportion of the maximum power consumption of the users;

[0094] The simultaneous coefficient of each distribution line is obtained according to the reported user information, including:

[0095] The average power consumption of users is summed up by the number of line users to obtain the actual power consumption of line users. The maximum power consumption of line users is obtained by summing up the product of the maximum power consumption of users and the time proportion by the number of line users. The ratio of the actual power consumption of line users to the maximum power consumption of line users is used as the simultaneous coefficient of each distribution line.

[0096] For example, the server 102 uses the number of line users to sum the average power consumption of users to obtain the actual power consumption of line users, and then uses the number of line users to sum the product of the maximum power consumption of users and the time proportion to obtain the maximum power consumption of line users. Finally, the ratio of the actual power consumption of line users to the maximum power consumption of line users is used as the simultaneous coefficient of each distribution line. By calculating the number of line users, actual power consumption and maximum power consumption, the simultaneous coefficient obtained provides an important reference for the management of distribution lines. This method not only improves the accuracy of load forecasting, but also optimizes the configuration of power resources and enhances the reliability of the system.

[0097] In one embodiment, the historical load information includes historical information and an average load growth rate;

[0098] The load growth rate of each distribution line is obtained based on historical load information, including:

[0099] The ratio of the average load growth rate to the historical information is used as the annual average load growth rate of each distribution line; the annual average load growth rate is summed using the historical information to obtain the load growth rate of each distribution line.

[0100] The historical information may be understood as a time period derived from the current time as the origin, which may be measured in years, months or days.

[0101] Optionally, the server 102 uses the ratio of the average load growth rate to the historical information as the annual average load growth rate of each distribution line, and then uses the historical information to sum the annual average load growth rate to obtain the load growth rate of each distribution line. The load growth rate associated with the historical data is calculated by the above means, which lays a data foundation for the subsequent calculation of the line load prediction value of each distribution line, and improves the prediction accuracy of the load prediction.

[0102] In an exemplary embodiment, based on the simultaneity coefficient and the load growth rate, a line load forecast value associated with each distribution line is obtained, including:

[0103] The maximum load of each distribution line and the maximum load of the user are obtained; according to the maximum load of each distribution line, the load growth rate, the maximum load of the user and the simultaneous coefficient, the line load prediction value associated with each distribution line is obtained.

[0104] Among them, the maximum load can be understood as the maximum load carried by the current distribution line. The focus is on the current time node, rather than the line load threshold when the distribution line is designed.

[0105] For example, the server 102 obtains the maximum load of each distribution line and the maximum load of the user, and then obtains the line load forecast value associated with each distribution line according to the maximum load, load growth rate, maximum load of the user and the simultaneous coefficient. By making full use of the current operation year and historical operation data, the prediction accuracy and precision of the line load forecast value of each distribution line are improved, thereby improving the credibility of subsequent line load transfer.

[0106] In an exemplary embodiment, a specific implementation method of line load transfer of a distribution line is provided:

[0107] 1. First, collect all the influencing data of the area that needs to be planned in a permitted manner, including the historical annual average load of substations, lines, and distribution transformers, the user's reported load and capacity in the estimated planning year, the user's maximum load time proportion, the maximum power consumption, the number of users on the line, the practical coefficient and stage coefficient of different power consumption nature; the regional power grid structure and its ring network data.

[0108] 2. First, calculate the user simultaneous coefficient, load growth rate, and load forecast value for one year based on the registered user information:

[0109]

[0110] in, : Simultaneous coefficient; n: Number of line users; PT i : Average power consumption of the ith user; PM i : Maximum power consumption of the ith user; t: Maximum power time proportion.

[0111] Calculate the load growth rate based on historical loads:

[0112]

[0113] in, : Load growth rate; L: History; PH i : Average load growth rate.

[0114] Calculate the forecast load value for the planning year:

[0115]

[0116] Among them, P1: planned annual load; P i : The current maximum load of the line No. i : Maximum load of the i-th user; i : The utility coefficient of the electricity consumption of the i-th user; i : The phase coefficient of electricity consumption of the ith user.

[0117] 3. As shown in FIG3 , the schematic diagram of the power grid structure is used to determine whether N-1 is satisfied based on the grid structure data and the associated relationship data of the ring network:

[0118] Under normal operating mode, it is necessary to determine whether the power system can maintain stable operation and normal power supply, and other components are not overloaded when an N-1 outage occurs in the power system (referring to the situation where a single fault occurs in a transmission line, transformer, generator, etc. in the power system, to determine whether the system can maintain stable operation and will not experience load overload or system collapse) or an N-1-1 outage (referring to the situation where a line or equipment fails again under the N-1 outage condition, to determine whether the system can continue to operate stably. In other words, the second fault is evaluated after the first fault has occurred). The power system can maintain stable operation and normal power supply, and other components are not overloaded. The current main judgment is on the line.

[0119] First, determine whether there is a communication channel between lines based on the grid topology data and ring network association, then share the load according to the N-1 requirement based on the planned annual load value calculated for each line, and then determine whether the line will be overloaded. If so, N-1 is not met, otherwise it is met.

[0120] The total load of line A is q1, and the maximum load is h1; the total load of line B is q2, and the maximum load is h2; the cut-out load of line A is z, and the maximum value of z is q1, and the minimum value is 0;

[0121] Line A cuts out load z to line B, and the load rate of line A is: f(A)=(q1-z) / h1

[0122] B line load factor: f(B)=(q2+z) / h2

[0123] If all A lines are cut out, then: f=(q1+q2) / h2 (a load factor greater than 0.8 is considered overloaded)

[0124] 4. Finally, all the data are judged and calculated, and the recommended operation mode planning data is recorded for users to choose. The judgment logic is as follows: if the line planning annual load rate is heavily overloaded, it is necessary to determine whether there is a communication channel between the lines based on the grid topology data. If so, the excess load is switched to another line based on the N-1 rule to see whether the operation requirements are met. The information on whether the requirements are met is recorded in the data. For example, if line 1 switches m loads to line 2, the operation mode planning suggestion is to switch m loads from line 1 to line 2 for operation; if the switch causes a heavy overload on another line, the line is marked as an operation mode that cannot be met and requires manual judgment, so it needs to be marked.

[0125] Compared with the prior art, this application has the following advantages:

[0126] 1. Data-driven: Make full use of the current operating year and historical operating data, reveal the load growth patterns and characteristics of the line load through data analysis and modeling, and improve the accuracy and sophistication of the line load transfer plan.

[0127] 2. Comprehensive consideration: Comprehensively consider multiple factors such as load characteristics, equipment status, energy supply, etc., and make advance calculations before line load transfer, so as to avoid the dangerous consequences that may be caused by load transfer failure and improve the safety of power supply and the stability of service provision of the power grid.

[0128] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0129] Based on the same inventive concept, the embodiment of the present application also provides a line load transfer device for a distribution line for implementing the line load transfer method for a distribution line involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in the embodiments of the line load transfer device for one or more distribution lines provided below can refer to the limitations of the line load transfer method for a distribution line above, and will not be repeated here.

[0130] In an exemplary embodiment, as shown in FIG4 , a line load transfer device for a distribution line is provided, comprising: an acquisition module 401, a prediction value acquisition module 402, a prediction value determination module 403, a load rate determination module 404 and a transfer result determination module 405, wherein:

[0131] The acquisition module 401 is used to acquire the historical load information, grid architecture data and registered user information of each distribution line of the distribution network to be transferred;

[0132] The prediction value acquisition module 402 is used to obtain the simultaneous coefficient of each distribution line according to the information of the registered user, and obtain the load growth rate of each distribution line according to the historical load information, and obtain the line load prediction value associated with each distribution line based on the simultaneous coefficient and the load growth rate; the simultaneous coefficient is used to characterize the power load characteristics of each distribution line;

[0133] The prediction value determination module 403 is used to obtain the first line load prediction value associated with the first distribution line, the second line load prediction value associated with the second distribution line, and the pre-set load to be transferred when the power grid architecture data indicates that the first distribution line and the second distribution line are connected; the load to be transferred is the line load value of the first distribution line pre-cut into the second distribution line;

[0134] A load rate determination module 404, configured to obtain a first line load rate corresponding to the first distribution line and a second line load rate corresponding to the second distribution line according to the first line load prediction value, the second line load prediction value and the load to be transferred;

[0135] The transfer result determination module 405 is used to determine the line load transfer result of the load to be transferred according to the first line load rate and the second line load rate.

[0136] In one embodiment, the load rate determination module 404 further includes:

[0137] The first line load rate determination submodule is used to obtain the first line load rate corresponding to the first distribution line based on the first line load prediction value, the load to be transferred and the first line load threshold associated with the first distribution line.

[0138] The second line load rate determination submodule is used to obtain the second line load rate corresponding to the second distribution line according to the second line load prediction value, the load to be transferred and the second line load threshold associated with the second distribution line.

[0139] In one of the embodiments, the load transfer result determination module 405 is used to determine that the line load transfer of the load to be transferred is successful when the load rate of the first line is less than or equal to the preset load rate and the load rate of the second line is less than or equal to the preset load rate; when the load rate of the first line is less than or equal to the preset load rate and the load rate of the second line is greater than the preset load rate, determine that the line load transfer of the load to be transferred has failed, and mark the second distribution line as an unavailable line; an unavailable line represents a distribution line to which the load to be transferred cannot be transferred; when the load rate of the first line is greater than the preset load rate and the load rate of the second line is greater than the preset load rate, determine that the line load transfer of the load to be transferred has failed, and mark the second distribution line as an unavailable line.

[0140] In an exemplary embodiment, the load transfer result determination module 405 is further configured to increase the load to be transferred when the load rate of the first line is greater than a preset load rate and the load rate of the second line is less than or equal to the preset load rate.

[0141] In one embodiment, the reported user information includes the number of line users, the average power consumption of the users, the maximum power consumption of the users, and the time proportion of the maximum power consumption of the users; the prediction value acquisition module 402 includes:

[0142] The simultaneous coefficient acquisition subunit is used to sum the average power consumption of users using the number of line users to obtain the actual power consumption of line users; to sum the product of the maximum power consumption of users and the time proportion using the number of line users to obtain the maximum power consumption of line users; and to use the ratio of the actual power consumption of line users to the maximum power consumption of line users as the simultaneous coefficient of each distribution line.

[0143] In one embodiment, the historical load information includes historical information and an average load growth rate; the prediction value acquisition module 402 further includes:

[0144] The load growth rate acquisition subunit is used to take the ratio of the average load growth rate to the historical information as the annual average load growth rate of each distribution line; and to sum the annual average load growth rate using the historical information to obtain the load growth rate of each distribution line.

[0145] In an exemplary embodiment, the prediction value acquisition module 402 further includes:

[0146] The prediction value acquisition subunit is used to obtain the maximum load of each distribution line and the maximum load of the user; according to the maximum load of each distribution line, the load growth rate, the maximum load of the user and the simultaneous coefficient, the line load prediction value associated with each distribution line is obtained.

[0147] Each module in the above-mentioned line load transfer device of the power distribution line can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the corresponding operations of each of the above modules.

[0148] In an exemplary embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be shown in FIG5. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. 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. 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 database of the computer device is used to store historical load information, power grid architecture data, user information, and line load forecast value data of each distribution line. 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 line load transfer method for a distribution line is implemented.

[0149] Those skilled in the art will understand that the structure shown in FIG. 5 is merely a block diagram of a partial 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 shown in the figure, or combine certain components, or have a different arrangement of components.

[0150] In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the line load transfer method of the distribution line of the above embodiment is implemented.

[0151] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the line load transfer method of the distribution line of the above embodiment is implemented.

[0152] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the line load transfer method for a distribution line according to the above embodiment.

[0153] 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 regulations.

[0154] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0155] 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 application.

[0156] The above-described 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 present application. 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 present application shall be subject to the attached claims.

Claims

1. A method for transferring line load of a distribution line, characterized in that: The method comprises: Obtain the historical load information, grid architecture data and registered user information of each distribution line of the distribution network to be transferred; Acquire the simultaneous coefficient of each of the distribution lines according to the registered user information, and obtain the load growth rate of each of the distribution lines according to the historical load information, and obtain the line load forecast value associated with each of the distribution lines based on the simultaneous coefficient and the load growth rate; the simultaneous coefficient is used to characterize the power load characteristics of each of the distribution lines; When the grid architecture data indicates that the first distribution line and the second distribution line are connected, a first line load forecast value associated with the first distribution line, a second line load forecast value associated with the second distribution line, and a preset load to be transferred are obtained; the load to be transferred is the line load value of the first distribution line pre-cut into the second distribution line; According to the first line load prediction value, the second line load prediction value and the load to be transferred, respectively obtaining a first line load rate corresponding to the first distribution line and a second line load rate corresponding to the second distribution line; A line load transfer result of the load to be transferred is determined according to the first line load rate and the second line load rate.

2. The method according to claim 1, characterized in that The obtaining, according to the first line load prediction value, the second line load prediction value and the load to be transferred, respectively a first line load rate associated with the first distribution line and a second line load rate associated with the second distribution line, comprises: Obtaining a first line load rate corresponding to the first distribution line based on the first line load prediction value, the load to be transferred, and a first line load threshold associated with the first distribution line; A second line load rate corresponding to the second distribution line is obtained according to the second line load prediction value, the load to be transferred, and a second line load threshold associated with the second distribution line.

3. The method according to claim 2, characterized in that The determining, according to the first line load rate and the second line load rate, a line load transfer result of the load to be transferred includes: When the first line load rate is less than or equal to a preset load rate and the second line load rate is less than or equal to the preset load rate, determining that the line load transfer of the load to be transferred is successful; In the case where the first line load rate is less than or equal to the preset load rate and the second line load rate is greater than the preset load rate, determining that the line load transfer of the load to be transferred fails, and marking the second distribution line as a non-switching line; the non-switching line indicates that the distribution line to which the load to be transferred cannot be transferred; When the first line load rate is greater than the preset load rate and the second line load rate is greater than the preset load rate, it is determined that the line load transfer of the load to be transferred has failed, and the second distribution line is marked as a non-switching line.

4. The method according to claim 3, characterized in that The method further comprises: When the first line load rate is greater than the preset load rate and the second line load rate is less than or equal to the preset load rate, the load to be transferred is increased.

5. The method according to claim 1, characterized in that The reported user information includes the number of line users, the average power consumption of users, the maximum power consumption of users, and the time proportion of the maximum power consumption of users; The obtaining the simultaneous coefficient of each of the power distribution lines according to the reported user information includes: The average power consumption of the users is summed using the number of users on the line to obtain the actual power consumption of the users on the line; The maximum power consumption of the line users is obtained by summing the product of the maximum power consumption of the user and the time proportion using the number of line users; The ratio of the actual power consumption of the line users to the maximum power consumption of the line users is used as the simultaneity coefficient of each of the distribution lines.

6. The method according to claim 1, characterized in that The historical load information includes historical information and average load growth rate; The step of obtaining the load growth rate of each distribution line according to the historical load information includes: The ratio of the average load growth rate to the historical information is used as the annual average load growth rate of each distribution line; The annual average load growth rate is summed using the historical information to obtain the load growth rate of each distribution line.

7. The method according to claim 1, characterized in that The obtaining, based on the simultaneity coefficient and the load growth rate, a line load forecast value associated with each of the distribution lines comprises: Obtaining the maximum load of each of the distribution lines and the maximum load of the user; According to the maximum load, load growth rate, maximum user load and simultaneity coefficient of each distribution line, a line load forecast value associated with each distribution line is obtained.

8. A line load transfer device for a distribution line, characterized in that: The device comprises: An acquisition module is used to obtain historical load information, grid architecture data and registered user information of each distribution line of the distribution network to be transferred; A prediction value acquisition module, used to obtain the simultaneous coefficient of each of the distribution lines according to the registered user information, and obtain the load growth rate of each of the distribution lines according to the historical load information, and obtain the line load prediction value associated with each of the distribution lines based on the simultaneous coefficient and the load growth rate; the simultaneous coefficient is used to characterize the power load characteristics of each of the distribution lines; A prediction value determination module, configured to obtain, when the power grid architecture data indicates that the first distribution line and the second distribution line are connected, a first line load prediction value associated with the first distribution line, a second line load prediction value associated with the second distribution line, and a preset load to be transferred; the load to be transferred is a line load value of the first distribution line pre-cut into the second distribution line; A load rate determination module, configured to obtain a first line load rate corresponding to the first distribution line and a second line load rate corresponding to the second distribution line according to the first line load prediction value, the second line load prediction value and the load to be transferred; The transfer result determination module is used to determine the line load transfer result of the load to be transferred according to the first line load rate and the second line load rate.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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