Methods, devices, equipment and storage media for line load transfer of power distribution lines

Abstract

This application relates to a method, apparatus, device, and storage medium for line load transfer of power distribution lines. The method includes: acquiring historical load information, power grid architecture data, and registered user information; obtaining a simultaneity coefficient based on the registered user information; obtaining a load growth rate based on the historical load information; and obtaining the predicted line load value associated with each power distribution line based on the simultaneity coefficient and the load growth rate. Then, assuming the power grid architecture data indicates that the first and second power distribution lines are connected, acquiring the predicted first line load value, the predicted second line load value, and the load to be transferred; obtaining the first line load rate and the second line load rate based on the predicted first line load value, the predicted second line load value, and the load to be transferred; and finally, determining the line load transfer result based on the first line load rate and the second line load rate. This method can improve the accuracy and precision of line load transfer.

Description

Technical Field

[0001] This application relates to the field of power system engineering, and in particular to a method, apparatus, computer equipment, computer-readable storage medium, and computer program product for transferring line loads in a power distribution line. Background Technology

[0002] With the increasing demand for electricity and the growing complexity of power grid structures, load transfer on distribution lines is essential to ensure a stable power supply. Traditional load transfer methods often rely on rules of thumb and fixed patterns. While these methods can provide a relatively accurate means of stability prediction, using fixed models simplifies the analysis of complex line load conditions and reduces computational complexity.

[0003] However, current traditional methods for transferring line loads in power distribution lines suffer from inaccuracies and lack of precision. Summary of the Invention

[0004] Therefore, it is necessary to provide a method, apparatus, computer equipment, computer-readable storage medium, and computer program product for transferring power distribution lines that can improve the accuracy and precision of line load transfer, in order to address the aforementioned technical problems.

[0005] In a first aspect, this application provides a method for transferring line loads in a power distribution line, comprising:

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

[0007] The simultaneity coefficient of each distribution line is obtained based on the user information, and the load growth rate of each distribution line is obtained based on historical load information. Based on the simultaneity coefficient and the load growth rate, the load prediction value of the line associated with each distribution line is obtained. The simultaneity coefficient is used to characterize the power load characteristics of each distribution line.

[0008] When the power grid architecture data characterizes the connection between the first distribution line and the second distribution line, the predicted load value of the first line associated with the first distribution line, the predicted load value of the second line associated with the second distribution line, and the pre-set load to be transferred are obtained; the load to be transferred is the line load value of the first distribution line to be pre-connected to the second distribution line.

[0009] Based on the predicted load values ​​of the first line, the predicted load values ​​of the second line, 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 obtained respectively.

[0010] Based on the first line load rate and the second line load rate, determine the line load transfer result of the load to be transferred.

[0011] In one embodiment, based on the first line load forecast, the second line load forecast, and the load to be transferred, the first line load rate associated with the first distribution line and the second line load rate associated with the second distribution line are obtained, including:

[0012] Based on the predicted load of the first line, the load to be transferred, and the first line load threshold associated with the first distribution line, the first line load rate corresponding to the first distribution line is obtained.

[0013] The second line load rate corresponding to the second distribution line is obtained based on the predicted load of the second line, the load to be transferred, and the second line load threshold associated with the second distribution line.

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

[0015] If 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, the load transfer of the line to be transferred is determined to be successful.

[0016] If 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 load transfer of the line to be transferred has failed, and the second distribution line is marked as an uncuttable line; an uncuttable line indicates that the distribution line to which the load to be transferred cannot be transferred.

[0017] If 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, it is determined that the load transfer of the line to be transferred has failed, and the second distribution line is marked as an unaccessible line.

[0018] In one embodiment, the method further includes: increasing the load to be transferred 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.

[0019] In one exemplary embodiment, the user information includes the number of line users, the average power consumption of users, the maximum power consumption of users, and the percentage of time during which users consume the maximum power.

[0020] The simultaneity coefficients for each power distribution line are obtained based on the user application information, including:

[0021] The actual electricity consumption of line users is obtained by summing the average power consumption of each user based on the number of line users.

[0022] The maximum power consumption of a line user is obtained by summing the products of the number of line users and the percentage of time consumed by each user.

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

[0024] In one embodiment, historical load information includes historical information and 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 historical information is used as the average annual load growth rate for each distribution line.

[0027] By summing the annual average load growth rate using historical information, the load growth rate of each distribution line can be obtained.

[0028] In one embodiment, based on the simultaneity factor and the load growth rate, the predicted line load values ​​associated with each distribution line are obtained, including:

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

[0030] Based on the maximum load, load growth rate, maximum user load, and simultaneity factor of each distribution line, the predicted load value of the line associated with each distribution line is obtained.

[0031] Secondly, this application also provides a line load transfer device for a power distribution line, comprising:

[0032] The acquisition module is used to acquire historical load information, power grid architecture data, and user application information for each distribution line of the distribution network to be transferred.

[0033] The prediction value acquisition module is used to obtain the simultaneity coefficient of each distribution line based on the user information, and to obtain the load growth rate of each distribution line based on historical load information. Based on the simultaneity coefficient and the load growth rate, the predicted load value of the line associated with each distribution line is obtained. The simultaneity coefficient is used to characterize the power load characteristics of each distribution line.

[0034] The prediction value determination module is used to obtain the predicted value of the first line load associated with the first distribution line, the predicted value of the second line load associated with the second distribution line, and a 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 to be pre-connected to the second distribution line.

[0035] The load rate determination module is used to obtain the first line load rate corresponding to the first distribution line and the second line load rate corresponding to the second distribution line based on 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 based on the first line load rate and the second line load rate.

[0037] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

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

[0039] The simultaneity coefficient of each distribution line is obtained based on the user information, and the load growth rate of each distribution line is obtained based on historical load information. Based on the simultaneity coefficient and the load growth rate, the load prediction value of the line associated with each distribution line is obtained. The simultaneity coefficient is used to characterize the power load characteristics of each distribution line.

[0040] When the power grid architecture data characterizes the connection between the first distribution line and the second distribution line, the predicted load value of the first line associated with the first distribution line, the predicted load value of the second line associated with the second distribution line, and the pre-set load to be transferred are obtained; the load to be transferred is the line load value of the first distribution line to be pre-connected to the second distribution line.

[0041] Based on the predicted load values ​​of the first line, the predicted load values ​​of the second line, 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 obtained respectively.

[0042] Based on the first line load rate and the second line load rate, determine the line load transfer result of the load to be transferred.

[0043] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the following steps:

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

[0045] The simultaneity coefficient of each distribution line is obtained based on the user information, and the load growth rate of each distribution line is obtained based on historical load information. Based on the simultaneity coefficient and the load growth rate, the load prediction value of the line associated with each distribution line is obtained. The simultaneity coefficient is used to characterize the power load characteristics of each distribution line.

[0046] When the power grid architecture data characterizes the connection between the first distribution line and the second distribution line, the predicted load value of the first line associated with the first distribution line, the predicted load value of the second line associated with the second distribution line, and the pre-set load to be transferred are obtained; the load to be transferred is the line load value of the first distribution line to be pre-connected to the second distribution line.

[0047] Based on the predicted load values ​​of the first line, the predicted load values ​​of the second line, 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 obtained respectively.

[0048] Based on the first line load rate and the second line load rate, determine the line load transfer result of the load to be transferred.

[0049] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

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

[0051] The simultaneity coefficient of each distribution line is obtained based on the user information, and the load growth rate of each distribution line is obtained based on historical load information. Based on the simultaneity coefficient and the load growth rate, the load prediction value of the line associated with each distribution line is obtained. The simultaneity coefficient is used to characterize the power load characteristics of each distribution line.

[0052] When the power grid architecture data characterizes the connection between the first distribution line and the second distribution line, the predicted load value of the first line associated with the first distribution line, the predicted load value of the second line associated with the second distribution line, and the pre-set load to be transferred are obtained; the load to be transferred is the line load value of the first distribution line to be pre-connected to the second distribution line.

[0053] Based on the predicted load values ​​of the first line, the predicted load values ​​of the second line, 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 obtained respectively.

[0054] Based on the first line load rate and the second line load rate, determine the line load transfer result of the load to be transferred.

[0055] The aforementioned method, apparatus, computer equipment, computer-readable storage medium, and computer program product for transferring line loads of distribution lines acquire historical load information, grid architecture data, and user application information for each distribution line in the distribution network to be transferred. Based on the user application information, it acquires the simultaneity coefficient for each distribution line and the load growth rate for each distribution line based on the historical load information. Based on the simultaneity coefficient and load growth rate, it obtains the predicted line load value associated with each distribution line. Then, assuming the grid architecture data indicates that the first and second distribution lines are connected, it acquires the predicted first line load value associated with the first distribution line, the predicted second line load value associated with the second distribution line, and a pre-set load to be transferred from the first distribution line to the second distribution line. Based on the predicted first line load value, the predicted second line load value, and the load to be transferred, it obtains the first line load rate corresponding to the first distribution line and the second line load rate corresponding to the second distribution line, respectively. Finally, based on the first and second line load rates, it determines the line load transfer result for the load to be transferred. By acquiring historical data related to the line load of distribution lines to calculate the line load forecast, the accuracy of the line load forecast is improved. Then, when the power grid data indicates that two distribution lines are connected, the line load rate after the transfer is calculated based on the line load forecast of the two lines and the load to be transferred. The success of the line load transfer is judged based on the line load rate after the transfer, thereby improving the accuracy and precision of the line load transfer. Attached Figure Description

[0056] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0057] Figure 1 This is a diagram illustrating the application environment of a power distribution line load transfer method in one embodiment.

[0058] Figure 2 This is a flowchart illustrating a method for transferring line loads in a power distribution line in one embodiment.

[0059] Figure 3 This is a schematic diagram of the power grid structure in another embodiment;

[0060] Figure 4 This is a structural block diagram of a line load transfer device for a power distribution line in one embodiment;

[0061] Figure 5This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0063] The line load transfer method for power distribution lines provided in this application embodiment can be applied to, for example... Figure 1 The application environment shown is illustrated. In this environment, the power distribution network communicates with server 102 via a communication network. The data storage system can store the data that server 102 needs to process. The data storage system can be integrated onto server 102, or it can be located in the cloud or on other network servers. Server 102 acquires historical load information, grid architecture data, and user application information for each distribution line in the distribution network to be transferred through a communication network. Based on the user application information, it obtains the simultaneity coefficient for each distribution line and the load growth rate for each distribution line based on the historical load information. Based on the simultaneity coefficient and load growth rate, it obtains the predicted load value of the line associated with each distribution line. The simultaneity coefficient characterizes the power load characteristics of each distribution line. When the grid architecture data indicates that the first and second distribution lines are connected, it acquires the predicted load value of the first line associated with the first distribution line, the predicted load value of the second line associated with the second distribution line, and the load to be transferred from the first distribution line to the second distribution line. Then, based on the predicted load values ​​of the first and second lines and the load to be transferred, it obtains the first line load rate corresponding to the first distribution line and the second line load rate corresponding to the second distribution line, respectively. Finally, based on the first and second line load rates, it determines the line load transfer result for the load to be transferred. Server 102 can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing cloud computing services.

[0064] In one exemplary embodiment, such as Figure 2 As shown, a method for transferring line loads in a power distribution line is provided, which can be applied to... Figure 1 Taking server 102 as an example, the explanation includes the following steps S201 to S205. Wherein:

[0065] Step S201: Obtain historical load information, power grid architecture data, and user application information for each distribution line of the distribution network to be transferred.

[0066] Historical load information can be understood as the load data of the power load transported on various distribution lines over a period of time in the past. Power grid architecture data can be understood as the power grid topology diagram, including distribution lines, transmission nodes, and power consumption nodes. User application information can be understood as various data and information related to the user's access to and use of electricity or energy, including basic user information, access information, and meter information.

[0067] Optionally, the server 102 obtains historical load information, power grid architecture data, and user application 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 prediction value associated with each distribution line, thereby accelerating the calculation speed of the line load prediction value.

[0068] Step S202: Obtain the simultaneity coefficient of each distribution line based on the user information, and obtain the load growth rate of each distribution line based on historical load information. Based on the simultaneity coefficient and the load growth rate, obtain the predicted load value of the line associated with each distribution line. The simultaneity coefficient is used to characterize the power load characteristics of each distribution line.

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

[0070] For example, server 102 calculates the simultaneity coefficient of each power distribution line based on the user application information and the load growth rate of each power distribution line based on historical load information. Furthermore, based on the simultaneity coefficient and load growth rate, it obtains the predicted load value of each power distribution line. By combining historical data of each power distribution line with user application information to obtain relevant calculation coefficients, and further calculating the predicted load value of each power distribution line for a future period based on these coefficients, the predicted load value obtained through the above methods is more accurate and lays a data foundation for subsequent 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 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; the load to be transferred is the line load value of the first distribution line to be pre-connected to the second distribution line.

[0072] The load to be transferred can be understood as the line load value of the first distribution line to be pre-connected to the second distribution line. The load value of the load to be transferred is within the range of 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 the connectivity between the first and second distribution lines, the predicted load values ​​of the first line associated with the first distribution line, the predicted load values ​​of the second line associated with the second distribution line, and the pre-set loads to be transferred are obtained. Line load transfer can only be performed when the two distribution lines are connected, reducing the resource cost of obtaining the relevant line load prediction values ​​and laying a data foundation for subsequent calculations of line load rates.

[0074] Step S204: Based on the predicted load values ​​of the first line, the predicted load values ​​of the second line, 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 obtained respectively.

[0075] Step S205: Determine the line load transfer result of the load to be transferred based on the first line load rate and the second line load rate.

[0076] The first line load rate can be understood as the predicted line load rate of the first distribution line after the load to be transferred is switched to the second distribution line. Similarly, the second line load rate can be understood as the assumed line load rate of the second distribution line after it receives the load to be transferred. It should be noted that neither the first line load rate nor the second line load rate are the actual line load rates.

[0077] For example, 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 based on the predicted first line load value, the predicted second line load value, and the load to be transferred. Finally, based on the first line load rate and the second line load rate, it determines the line load transfer result of the load to be transferred, that is, whether the load to be transferred is allowed to switch to the second distribution line. By calculating the predicted line load value and the predicted switching of the load to be transferred, and determining whether the switching is allowed based on the first line load rate and the second line load rate after the switching, the accuracy and precision of line load transfer are enhanced, and the system robustness of the entire distribution network system is improved.

[0078] In the above-mentioned method for transferring the load of distribution lines, historical load information, grid architecture data, and user application information of each distribution line in the distribution network to be transferred are obtained. The simultaneity coefficient of each distribution line is obtained based on the user application information, and the load growth rate of each distribution line is obtained based on the historical load information. Based on the simultaneity coefficient and the load growth rate, the predicted load value of each distribution line is obtained. Then, when the grid architecture data indicates that the first distribution line and the second distribution line are connected, the predicted load value of the first line associated with the first distribution line, the predicted load value of the second line associated with the second distribution line, and the pre-set load to be transferred from the first distribution line to the second distribution line are obtained. Based on the predicted load value of the first line, the predicted load value of the second line, 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 obtained respectively. Finally, the line load transfer result of the load to be transferred is determined based on the first line load rate and the second line load rate. By acquiring historical data related to the line load of distribution lines to calculate the line load forecast, the accuracy of the line load forecast is improved. Then, when the power grid data indicates that two distribution lines are connected, the line load rate after the transfer is calculated based on the line load forecast of the two lines and the load to be transferred. The success of the line load transfer is judged based on the line load rate after the transfer, thereby improving the accuracy and precision of the line load transfer.

[0079] In one embodiment, based on the first line load forecast, the second line load forecast, and the load to be transferred, the first line load rate associated with the first distribution line and the second line load rate associated with the second distribution line are obtained, including:

[0080] Based on the predicted load of the first line, the load to be transferred, and the first line load threshold associated with the first distribution line, the first line load rate corresponding to the first distribution line is obtained.

[0081] The second line load rate corresponding to the second distribution line is obtained based on the predicted load of the second line, the load to be transferred, and the second line load threshold associated with the second distribution line.

[0082] The first line load threshold can be understood as the maximum line load that the first distribution line can accommodate. Exceeding this value may lead to the risk of leakage. Similarly, the second line load threshold can be understood as the maximum line load that the second distribution line can accommodate. Exceeding this value may lead to the risk of leakage.

[0083] Optionally, the predicted load of the first line after load transfer is obtained by subtracting the load to be transferred from the predicted load of the first line. Then, the ratio of the predicted load of the first line after load transfer to the load threshold of the first line associated with the first distribution line is used as the first line load rate corresponding to the first distribution line. Similarly, the predicted load of the second line after load transfer is obtained by adding the predicted load of the second line to the predicted load of the second line. Then, the ratio of the predicted load of the second line after load transfer to the load threshold of the second line 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 load transfer in advance in this way helps with load transfer planning and effectively reduces the risk of line overload or severe overload, enhancing the stability and power supply reliability of the distribution system.

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

[0085] If 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, the load transfer of the line to be transferred is determined to be successful.

[0086] If 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 load transfer of the line to be transferred has failed, and the second distribution line is marked as an uncuttable line; an uncuttable line indicates that the distribution line to which the load to be transferred cannot be transferred.

[0087] If 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, it is determined that the load transfer of the line to be transferred has failed, and the second distribution line is marked as an unaccessible line.

[0088] The preset load rate can be understood as the line load rate when the line is under severe overload. It is known that when the line is under severe overload, the line is actually in an overloaded state and may heat up. The line load rate at this time is slightly lower than the line load rate when the line is under overload. The unusable line can be understood as the line load rate of the distribution line that is connected to the load to be transferred is greater than the preset load rate. Therefore, it means that the distribution line cannot accommodate the corresponding load to be transferred.

[0089] For example, if 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, meaning that after the load transfer of the load to be transferred, neither line load rate of the two distribution lines exceeds the line load rate under heavy overload, it indicates that the line load transfer of the load to be transferred is successful, and the aforementioned line load transfer of the load to be transferred can proceed. Conversely, if 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, meaning that 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 under heavy overload, while the second line load rate of the second distribution line exceeds the line load rate under heavy overload... If the line load rate is higher than the preset load rate, the transfer of the load to be transferred will fail. The second distribution line cannot accommodate the load to be transferred and will be marked as an uninterruptible line, thus preventing the transfer of the load to be transferred. If the load rate of the first line is higher than the preset load rate and the load rate of the second line is higher than the preset load rate, that is, after the transfer of the load to be transferred, the load rates of both distribution lines exceed the load rates under heavy overload conditions, it indicates that the transfer of the load to be transferred will fail. The second distribution line cannot accommodate the load to be transferred and will be marked as an uninterruptible line, thus preventing the transfer of the load to be transferred.

[0090] By setting load rate judgment conditions, it is ensured that the line load rate of the distribution lines participating in load transfer will not be overloaded, thus avoiding equipment damage and safety accidents, ensuring the safety of the power supply system, and making load distribution more reasonable based on real-time monitoring of load rate, effectively optimizing the allocation of power resources and improving power utilization efficiency.

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

[0092] Optionally, in addition to the three scenarios mentioned above, there is another scenario: if 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, provided it is less than or equal to the predicted load value of the first line. The relevant line load rates can then be recalculated, and it can be observed whether the scenario falls into one of the three aforementioned situations. The appropriate strategy should then be applied. In load transfer management, if the load rate of the first line is higher than the preset standard while the load rate of the second line meets the preset standard, adjusting the load value of the load to be transferred and recalculating the load rate can improve the flexibility and reliability of the power system.

[0093] In one embodiment, the user information includes the number of users on the line, the average power consumption of users, the maximum power consumption of users, and the time percentage of the time when users consume the maximum power.

[0094] The simultaneity coefficients for each power distribution line are obtained based on the user application information, including:

[0095] The actual electricity consumption of a line user is obtained by summing the average power consumption of the user based on the number of users on the line; the maximum electricity consumption of a line user is obtained by summing the product of the maximum power consumption of the user and the time ratio based on the number of users on the line; the ratio of the actual electricity consumption of a line user to the maximum electricity consumption of the line user is used as the simultaneity coefficient for each distribution line.

[0096] For example, server 102 sums the average power consumption of each user based on the number of users on the line to obtain the actual power consumption of each user. Then, it sums the products of the user's maximum power consumption and the time percentage based on the number of users to obtain the maximum power consumption of each user. Finally, the ratio of the actual power consumption to the maximum power consumption of each user is used as the simultaneity coefficient for each distribution line. The simultaneity coefficient, derived from the calculation of the number of users, actual power consumption, and maximum power consumption, provides an important reference for the management of distribution lines. This method not only improves the accuracy of load forecasting but also optimizes the allocation of power resources and enhances the reliability of the system.

[0097] In one embodiment, historical load information includes historical information and 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 historical information is used as the annual average load growth rate of each distribution line; the annual average load growth rate is summed using historical information to obtain the load growth rate of each distribution line.

[0100] Historical information can be understood as a time period derived backward from the current time, which can be measured in years, months, or days.

[0101] Optionally, server 102 uses the ratio of the average load growth rate to historical information as the annual average load growth rate for each distribution line. Then, it sums the annual average load growth rates using historical information to obtain the load growth rate for each distribution line. Calculating the load growth rate associated with historical data using the above methods lays a data foundation for subsequent calculations of the line load forecast for each distribution line, thus improving the accuracy of load forecasting.

[0102] In one exemplary embodiment, based on the simultaneity factor and load growth rate, the predicted line load values ​​associated with each distribution line are obtained, including:

[0103] Obtain the maximum load of each distribution line and the maximum load of each user; based on the maximum load of each distribution line, the load growth rate, the maximum load of each user, and the simultaneity factor, obtain the predicted load value of the line associated with each distribution line.

[0104] The maximum load can be understood as the maximum load carried by the current power distribution line. The key point is the current time point, rather than the line load threshold when the power distribution line was designed.

[0105] For example, server 102 obtains the maximum load of each distribution line and the maximum load of each user. Then, based on the maximum load, load growth rate, maximum user load, and simultaneity factor, it obtains the predicted line load value associated with each distribution line. By making full use of the current operating year and historical operating data, the prediction accuracy and precision of the line load prediction value of each distribution line are improved, thereby increasing the reliability of subsequent line load transfer.

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

[0107] 1. First, collect all impact data for the area where permission planning is required, including the historical annual average load of substations, lines, and distribution transformers, the expected user application load and application capacity for the planning year, the user's maximum load time percentage, the maximum power consumption, the number of users on the lines, the practical coefficient and stage coefficient for different power consumption types; and the regional power grid structure and its ring network data.

[0108] 2. First, calculate the user concurrency factor, load growth rate, and planned load forecast for one year based on the user application information:

[0109]

[0110] in, Simultaneous coefficient; n: Number of line users; PT i : Average power consumption of the i-th user; PM i : Maximum power consumption of the i-th user; t: Percentage of time with maximum power consumption.

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

[0112]

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

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

[0115]

[0116] Wherein, P1: planned annual load; P i The current maximum load of which line; PF i : Maximum load of the i-th user; i : Practical coefficient for the electricity consumption characteristics of the i-th user; i : The electricity consumption stage coefficient for the i-th user.

[0117] 3. For example Figure 3 Based on the power grid structure diagram shown, and its ring network correlation data, determine whether N-1 is satisfied:

[0118] Under normal operating conditions, it is necessary to determine whether the power system can maintain stable operation and normal power supply without overload or system collapse when an N-1 outage (referring to a single fault in a transmission line, transformer, generator, etc.) or an N-1-1 outage (referring to a situation where another line or equipment fault occurs under N-1 outage conditions, and whether the system can continue to operate stably; in other words, assessing a second fault after the first one has occurred) occurs. Currently, the primary focus is on assessing the power lines.

[0119] First, determine whether there are connecting channels between lines based on the network topology data and ring network associations. Then, based on the planned annual load value calculated for each line, load allocation is performed according to the N-1 requirement. Next, determine whether there will be a heavy overload situation for the line. If it will, then N-1 is not satisfied; otherwise, it is satisfied.

[0120] Line A: Total load q1, peak load h1; Line B: Total load q2, peak load h2; Line A: Cut-off load z, where z has a maximum of q1 and a minimum of 0.

[0121] Load z is transferred from line A to line B. The load factor of line A is: f(A) = (q1 - z) / h1

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

[0123] If line A is completely cut off, then f = (q1 + q2) / h2 (a load factor greater than 0.8 indicates an overload).

[0124] 4. Finally, all data is evaluated and calculated, and the suggested operating mode planning data is recorded for users to choose from. The judgment logic is as follows: If the annual load rate of the line planning shows heavy overload, it is necessary to check whether there is a connection channel between the lines based on the network topology data. If so, according to the N-1 rule, the excess load is switched to another line to see if the operating requirements are met. The information on whether the requirements are met is recorded in the data. For example, if line 1 switches m load to line 2, then the suggested operating mode planning is to switch m load from line 1 to line 2. If the switching causes heavy overload on another line, then the line is marked as not meeting the operating mode requirements and needs to be manually judged, 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 current and historical operating data, and reveal the load growth patterns and characteristics of line loads through data analysis and modeling to improve the accuracy and precision of line load transfer schemes.

[0127] 2. Comprehensive consideration: Taking into account multiple factors such as load characteristics, equipment status, and energy supply, calculations are performed in advance before load transfer, avoiding the dangerous consequences that may result from load transfer failure and improving the safety of power supply and the stability of service provision.

[0128] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0129] Based on the same inventive concept, this application also provides a line load transfer device for implementing the line load transfer method for power distribution lines as described above. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations of one or more line load transfer device embodiments provided below can be found in the limitations of the line load transfer method for power distribution lines described above, and will not be repeated here.

[0130] In one exemplary embodiment, such as Figure 4 As shown, a line load transfer device for a power 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 historical load information, power grid architecture data, and application 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 simultaneity coefficient of each distribution line based on the user information, and to obtain the load growth rate of each distribution line based on historical load information. Based on the simultaneity coefficient and the load growth rate, the predicted load value of the line associated with each distribution line is obtained. The simultaneity 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 predicted value of the first line load associated with the first distribution line, the predicted value of the second line load associated with the second distribution line, and a pre-set load to be transferred when the power grid architecture data characterizes the connection between the first distribution line and the second distribution line; the load to be transferred is the line load value of the first distribution line to be pre-connected to the second distribution line.

[0134] The load rate determination module 404 is used to obtain the first line load rate corresponding to the first distribution line and the second line load rate corresponding to the second distribution line based on 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 based on 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 based on the predicted second line load, the load to be transferred, and the second line load threshold associated with the second distribution line.

[0139] In one embodiment, the load transfer result determination module 405 is configured to determine that the line load transfer of the load to be transferred is successful 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 a preset load rate; and to determine that the line load transfer of the load to be transferred fails when the first line load rate is less than or equal to a preset load rate and the second line load rate is greater than a preset load rate, and to mark the second distribution line as an uninterceptable line; an uninterceptable line represents a distribution line where the load to be transferred cannot be transferred; and to determine that the line load transfer of the load to be transferred fails when the first line load rate is greater than a preset load rate and the second line load rate is greater than a preset load rate, and to mark the second distribution line as an uninterceptable line.

[0140] In an exemplary embodiment, the load transfer result determination module 405 is further configured to add loads to be transferred 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.

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

[0142] Simultaneously, the coefficient acquisition sub-unit is used to sum the average power consumption of users based on the number of users on the line to obtain the actual power consumption of users on the line; to sum the product of the maximum power consumption of users and the time ratio based on the number of users on the line to obtain the maximum power consumption of users on the line; and to use the ratio of the actual power consumption of users on the line to the maximum power consumption of users on the line as the simultaneous coefficient for each distribution line.

[0143] In one embodiment, the historical load information includes historical information and the average load growth rate; the predicted 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 historical information as the annual average load growth rate of each distribution line; the annual average load growth rate is summed using historical information to obtain the load growth rate of each distribution line.

[0145] In an exemplary embodiment, the predicted 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 users; based on the maximum load of each distribution line, the load growth rate, the maximum load of users, and the simultaneity coefficient, the predicted load value of the line associated with each distribution line is obtained.

[0147] Each module in the aforementioned power distribution line load transfer device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the operations corresponding to each module.

[0148] In one exemplary embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 5 As shown, the computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operating system and computer programs stored in the non-volatile storage media. The database stores historical load information for each power distribution line, power grid architecture data, user application information, and line load forecast data. The I / O interfaces are used for information exchange between the processor and external devices. The communication interface is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements a method for transferring line loads in a power distribution line.

[0149] Those skilled in the art will understand that Figure 5 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0150] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the line load transfer method for power distribution lines described in the above embodiment.

[0151] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the line load transfer method for power distribution lines described above.

[0152] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the line load transfer method for power distribution lines described above.

[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, data stored, data displayed, 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 the relevant data must comply with relevant regulations.

[0154] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this 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. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0155] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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 embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for transferring line load in a power distribution line, characterized in that, The method includes: Obtain historical load information, power grid architecture data, and user application information for each distribution line of the distribution network to be transferred; The simultaneity coefficient of each power distribution line is obtained based on the user application information; the simultaneity coefficient is used to characterize the power load characteristics of each power distribution line. ； in, Simultaneous coefficient; n: Number of line users; PT i : Average power consumption of the i-th user; PM i : Maximum power consumption of the i-th user; t: Percentage of time with maximum power consumption; The load growth rate of each distribution line is obtained based on the historical load information: ； in, : Load growth rate; L: Historical years; PH i Average load growth rate; Based on the simultaneity coefficient and the load growth rate, the predicted line load values ​​associated with each of the distribution lines are obtained: ； Wherein, P1: planned annual load; P i : The current maximum load of the i-th line; PF i : Maximum load of the i-th user; : Practical coefficient for the electricity consumption characteristics of the i-th user; : The electricity consumption stage coefficient for the i-th user; When the power grid architecture data indicates that the first distribution line and the second distribution line are connected, the predicted value of the first line load associated with the first distribution line, the predicted value of the second line load associated with the second distribution line, and the pre-set load to be transferred are obtained; the load to be transferred is the line load value of the first distribution line to be pre-connected to the second distribution line. Based on the first line load forecast value, the second line load forecast 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 obtained respectively. Based on the first line load rate and the second line load rate, the line load transfer result of the load to be transferred is determined.

2. The method according to claim 1, characterized in that, The step of obtaining the first line load rate associated with the first distribution line and the second line load rate associated with the second distribution line based on the first line load forecast value, the second line load forecast value, and the load to be transferred includes: Based on the first line load forecast value, the load to be transferred, and the first line load threshold associated with the first distribution line, the first line load rate corresponding to the first distribution line is obtained. The second line load rate corresponding to the second distribution line is obtained based on the second line load forecast value, the load to be transferred, and the second line load threshold associated with the second distribution line.

3. The method according to claim 2, characterized in that, The step of determining the line load transfer result of the load to be transferred based on the first line load rate and the second line load rate includes: If 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, the line load transfer of the load to be transferred is determined to be successful. If 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 load transfer of the line to which the load to be transferred has failed, and the second distribution line is marked as an uninterruptible line; the uninterruptible line indicates that the distribution line to which the load to be transferred cannot be transferred. If 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, it is determined that the load transfer of the line to be transferred has failed, and the second distribution line is marked as an unaccessible line.

4. The method according to claim 3, characterized in that, The method further includes: If 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 to be transferred is increased.

5. A line load transfer device for a power distribution line, characterized in that, The device includes: The acquisition module is used to acquire historical load information, power grid architecture data, and user application information for each distribution line of the distribution network to be transferred. The prediction value acquisition module is used to obtain the simultaneity coefficient of each of the power distribution lines based on the user application information; the simultaneity coefficient is used to characterize the power load characteristics of each of the power distribution lines. ； in, Simultaneous coefficient; n: Number of line users; PT i : Average power consumption of the i-th user; PM i : Maximum power consumption of the i-th user; t: Percentage of time with maximum power consumption; The load growth rate of each distribution line is obtained based on the historical load information: ； in, : Load growth rate; L: Historical years; PH i Average load growth rate; Based on the simultaneity coefficient and the load growth rate, the predicted line load values ​​associated with each of the distribution lines are obtained: ； Wherein, P1: planned annual load; P i : The current maximum load of the i-th line; PF i : Maximum load of the i-th user; : Practical coefficient for the electricity consumption characteristics of the i-th user; : The electricity consumption stage coefficient for the i-th user; The prediction value determination module is used to obtain the predicted value of the first line load associated with the first distribution line, the predicted value of the second line load associated with the second distribution line, and a 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 to be pre-connected to the second distribution line. The load rate determination module is used to obtain the first line load rate corresponding to the first distribution line and the second line load rate corresponding to the second distribution line based on 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 based on the first line load rate and the second line load rate.

6. The apparatus according to claim 5, characterized in that, The load rate determination module also includes: 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. The second line load rate determination module is used to obtain the second line load rate corresponding to the second distribution line based on the second line load prediction value, the load to be transferred, and the second line load threshold associated with the second distribution line.

7. The apparatus according to claim 6, characterized in that, The device further includes: The transfer result determination module is used to determine that the line load transfer of the load to be transferred is successful 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; to determine that the line load transfer of the load to be transferred fails when 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, and to mark the second distribution line as an uninterceptable line; the uninterceptable line represents a distribution line where the load to be transferred cannot be transferred; and to determine that the line load transfer of the load to be transferred fails 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, and to mark the second distribution line as an uninterceptable line.

8. The apparatus according to claim 7, characterized in that, The device further includes: The transfer result determination module is further configured to increase the load to be transferred 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.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 4.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 4.

Images