Method and device for determining position of terminal reactive power compensation device and storage medium

Abstract

The application discloses a kind of end reactive power compensation device position determination method, device and storage medium.The method comprises: obtaining end target power factor;Based on end target power factor and the quantity of end reactive power compensation device to be deployed in transformer area, the candidate position of end reactive power compensation device is determined;At least one remaining position in candidate position except duplicate position, attribute data in transformer area and operating data are carried out power flow calculation, and the total power saving capacity of transformer area is obtained, wherein, duplicate position is used to indicate that multiple end reactive power compensation devices are to be deployed in the same position in transformer area, attribute data is used to at least indicate model data in transformer area, and operating data is used to at least indicate power at each time of transformer area;Based on total power saving capacity, the target position of end reactive power compensation device in at least one remaining position is determined.The application solves the technical problem that it is difficult to ensure the balance between investment and energy saving.

Description

Technical Field

[0001] This invention relates to the field of power, and more specifically, to a method, apparatus, and storage medium for determining the location of an end-point reactive power compensation device. Background Technology

[0002] Currently, reactive power compensation in low-voltage distribution areas often involves centralized compensation at the low-voltage busbar of the 10kV transformer by installing low-voltage parallel capacitor banks. This can improve the power factor and voltage amplitude of the distribution area, and also minimize the flow of reactive current from the low-voltage distribution area into 10kV and higher-level lines, thus preventing increased line losses. However, in this method, reactive current still exists in the low-voltage lines, and the flow of reactive current in the low-voltage distribution area remains unchanged from before the treatment. Furthermore, the 400V line has a relatively thin diameter and high resistance, making line losses a significant concern. In addition, in actual production, the installation of end-point reactive power compensation devices relies heavily on personnel experience for site selection, often resulting in energy-saving effects that fall short of expectations. This leads to a technical challenge in balancing investment and energy conservation.

[0003] There is currently no effective solution to the technical problem of balancing investment and energy conservation. Summary of the Invention

[0004] This invention provides a method, apparatus, and storage medium for determining the location of an end-point reactive power compensation device, in order to at least solve the technical problem of difficulty in ensuring a balance between input and energy saving.

[0005] According to one aspect of the present invention, a method for determining the location of a terminal reactive power compensation device is provided. The method may include: obtaining a target power factor at the terminal, wherein the target power factor represents the ideal power factor at the compensation location where the terminal reactive power compensation device is deployed; determining candidate locations for the terminal reactive power compensation devices based on the target power factor and the number of terminal reactive power compensation devices to be deployed in the transformer area, wherein the candidate locations represent the locations where the terminal reactive power compensation devices are to be deployed in the transformer area; performing power flow calculations on at least one remaining location (excluding duplicate locations) among the candidate locations, attribute data in the transformer area, and operational data to obtain the total power saving for the transformer area, wherein duplicate locations represent the same location where multiple terminal reactive power compensation devices are to be deployed in the transformer area, attribute data represents at least the model data in the transformer area, and operational data represents at least the power of the transformer area at each time point; and determining the target location of the terminal reactive power compensation device among the at least one remaining location based on the total power saving. The present invention solves the technical problem of difficulty in ensuring a balance between investment and energy saving.

[0006] Optionally, based on the target power factor at the end and the number of reactive power compensation devices to be deployed in the transformer area, the candidate locations of the reactive power compensation devices are determined, including: in response to the original power factor in the transformer area being less than the target power factor at the end, determining a list of locations for the reactive power compensation devices; and based on the number of reactive power compensation devices and at least one location in the list of locations, determining the candidate locations for the reactive power compensation devices.

[0007] Optionally, based on the number of end-point reactive power compensation devices and at least one location in the location list, candidate locations for reactive power compensation devices are determined, including: determining combined locations for end-point reactive power compensation devices based on the number and location; performing power flow calculations on the combined locations, attribute data, and operating data to obtain the current power loss of the transformer area; and determining candidate locations based on the original power loss and current power loss of the transformer area.

[0008] Optionally, the method for determining the location of the end reactive power compensation device may further include: performing power flow calculations on attribute data and operating data to obtain the original power loss.

[0009] Optionally, power flow calculations are performed on at least one remaining location (excluding duplicate locations) in the candidate locations, attribute data in the transformer area, and operational data to obtain the total power saving of the transformer area. This includes: performing power flow calculations on at least one remaining location, attribute data, and operational data at each time point to obtain the target compensation capacity of the transformer area at each time point; and analyzing the rated capacity and target compensation capacity of the terminal reactive power compensation device to obtain the total power saving at each time point.

[0010] Optionally, based on the total saved power, determining the target location of the end reactive power compensation device in at least one remaining location includes: sorting the total saved power; and determining the remaining location in the distribution area where the sorted total saved power is to be deployed as the target location.

[0011] According to one aspect of the present invention, a device for determining the location of a terminal reactive power compensation device is provided. The device may include: an acquisition unit, configured to acquire a terminal target power factor, wherein the terminal target power factor represents the ideal power factor at the compensation location where the terminal reactive power compensation device is deployed; a first determination unit, configured to determine candidate locations for the terminal reactive power compensation devices based on the terminal target power factor and the number of terminal reactive power compensation devices to be deployed in the transformer area, wherein the candidate locations represent the locations where the terminal reactive power compensation devices are to be deployed in the transformer area; a first calculation unit, configured to perform power flow calculations on at least one remaining location (excluding duplicate locations) among the candidate locations, attribute data in the transformer area, and operating data to obtain the total power saving in the transformer area, wherein duplicate locations represent the same location where multiple terminal reactive power compensation devices are to be deployed in the transformer area, attribute data represents at least the model data in the transformer area, and operating data represents at least the power of the transformer area at each time point; and a second determination unit, configured to determine the target location of the terminal reactive power compensation device among at least one remaining location based on the total power saving.

[0012] According to another aspect of the present invention, a computer-readable storage medium is also provided. The computer-readable storage medium includes a stored program, wherein, when the program is executed, it controls the device where the computer-readable storage medium is located to execute the position determination method of the end-point reactive power compensation device according to the present invention.

[0013] According to another aspect of the present invention, a processor is also provided. The processor is used to run a program, wherein the program, when run by the processor, executes the method for determining the location of the end-effector reactive power compensation device according to the embodiments of the present invention.

[0014] According to another aspect of the present invention, a memory is also provided, which stores a computer program, wherein the computer program is used to execute the position determination method of any of the end reactive power compensation devices in Embodiment 1.

[0015] In this embodiment of the invention, a target power factor at the end is obtained. Then, based on the obtained target power factor, power users in the transformer substations with a power factor lower than the target power factor can be screened. Based on the number of locations of these power users and the number of terminal reactive power compensation devices to be deployed in the transformer substations, candidate locations for the terminal reactive power compensation devices can be determined. Then, by performing power flow calculations on at least one remaining location (excluding duplicate locations) among the candidate locations, the attribute data and operating data in the transformer substations, the total power saving of the transformer substations can be obtained. Finally, by sorting the total power saving, the target location for the terminal reactive power compensation devices can be determined from at least one remaining location. This achieves the goal of ensuring that the power saving effect meets expectations, solves the technical problem of difficulty in ensuring a balance between investment and energy saving, and realizes the technical effect of ensuring a balance between investment and energy saving. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a flowchart of a method for determining the position of an end-of-line reactive power compensation device according to an embodiment of the present invention;

[0018] Figure 2 This is a flowchart of a method for calculating the optimal installation position of a quantitative terminal reactive power compensation device under optimal power flow conditions, according to an embodiment of the present invention.

[0019] Figure 3 This is a flowchart of a method for determining a combination scheme of an end-of-line reactive power compensation device according to an embodiment of the present invention;

[0020] Figure 4 This is a flowchart of a method for determining the optimal solution of an end-of-line reactive power compensation device according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of a position determination device for an end-of-line reactive power compensation device according to an embodiment of the present invention. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] Example 1

[0025] According to an embodiment of the present invention, a method for determining the location of an end-effector reactive power compensation device is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0026] Figure 1 This is a flowchart of a method for determining the location of an end-of-line reactive power compensation device according to an embodiment of the present invention. The method may include the following steps:

[0027] Step S101: Obtain the target power factor at the end.

[0028] In the technical solution provided by step S101 of the present invention, the aforementioned terminal target power factor can be used to represent the ideal power factor at the compensation location where the terminal reactive power compensation device is deployed. For example, the aforementioned terminal target power factor can be used to screen power users in the transformer area that meet the optimization conditions. The aforementioned terminal target power factor can be the power factor to be achieved after optimization. The terminal reactive power compensation device can be a capacitor. This is only an example and is not specifically limited.

[0029] Optionally, the target power factor at the end can be obtained. For example, during the parameter setting process, by screening power users in the transformer area that meet the optimization conditions, the power factor of any phase corresponding to the power user can be obtained. Based on the power factor of any phase corresponding to the power user, the preset initial target power factor can be finely adjusted within a reasonable range, thereby obtaining the target power factor at the end.

[0030] Optionally, during the parameter setting process, for the transformer substations where terminal reactive power compensation devices need to be installed, the boundary conditions, data ranges, and other parameters involved in the calculation of the optimal installation location of the terminal reactive power compensation devices should be entered sequentially in the calculation window. The boundary conditions may include at least the number of terminal reactive power compensation devices, the target power factor, and the rated capacity of the compensator. Other parameters may include at least the meter loss and the ambient temperature during power flow calculation. The rated capacity of the compensator can be used to represent the maximum reactive power value that the reactive power compensation device can compensate. This is only an example and is not specifically limited.

[0031] Step S102: Based on the target power factor at the end and the number of end reactive power compensation devices to be deployed in the transformer area, determine the candidate locations of the end reactive power compensation devices.

[0032] In the technical solution provided by step S102 of the present invention, the above-mentioned candidate position can be used to indicate the position of the terminal reactive power compensation device to be deployed in the transformer area. For example, the above-mentioned candidate position can be the optimal installation position of the terminal reactive power compensation device to be deployed in the transformer area at each single point moment. This is only an example and is not specifically limited.

[0033] Optionally, after obtaining the target power factor at the end, the candidate locations of the reactive power compensation devices at the end are determined based on the target power factor at the end and the number of reactive power compensation devices to be deployed in the transformer area. For example, based on the obtained target power factor at the end, power users in the transformer area with a power factor lower than the target power factor at the end can be screened out, and based on the number of locations of the power users and the number of reactive power compensation devices to be deployed in the transformer area, the candidate locations of the reactive power compensation devices at the end can be determined. That is, the optimal installation location of the reactive power compensation device to be deployed in the transformer area at each single point in time can be determined.

[0034] Optionally, based on the number of power user locations and the number of terminal reactive power compensation devices to be deployed in the transformer substation, all possible combinations of power user locations and terminal reactive power compensation devices can be obtained. Then, by sequentially substituting all combinations into the power flow calculation, the current power loss of the transformer substation can be obtained. Based on the obtained current power loss, the candidate locations of the terminal reactive power compensation devices can be determined, that is, the optimal installation location of the terminal reactive power compensation devices to be deployed in the transformer substation at each single point in time can be determined.

[0035] Step S103: Perform power flow calculation on at least one remaining position (excluding duplicate positions) in the candidate positions, attribute data and operation data in the transformer area to obtain the total power saving of the transformer area.

[0036] In the technical solution provided by step S103 of the present invention, the repeated positions can be used to represent the same positions where multiple terminal reactive power compensation devices are to be deployed in the transformer area, the attribute data can be used to at least represent the model data in the transformer area, and the operating data can be used to at least represent the power and electricity of the transformer area at each time. For example, the model data may include: transformer area topology model, meter type, user phase, conductor type, conductor length, service line type, service line length, etc., and the operating data may include: active power at the beginning of the transformer area, reactive power at the beginning of the transformer area, power factor, user voltage, active power, reactive power, etc. This is only an example and is not specifically limited.

[0037] Optionally, after determining the candidate locations of the terminal reactive power compensation devices based on the target power factor at the end and the number of terminal reactive power compensation devices to be deployed in the distribution area, power flow calculation is performed on at least one remaining location (excluding duplicate locations) among the candidate locations, the attribute data of the distribution area, and the operating data at each time point to obtain the total power saving of the distribution area. For example, by deleting duplicate locations among the candidate locations, that is, by deleting multiple identical locations where terminal reactive power compensation devices are to be deployed in the distribution area, at least one remaining location can be obtained. Then, by performing power flow calculation on the remaining location, attribute data, and operating data, the required compensation capacity of the distribution area can be obtained. Based on the required compensation capacity of the distribution area and the rated capacity of the terminal reactive power compensation devices, the total power saving of the distribution area can be determined. The required compensation capacity of the distribution area can be used to represent the capacity to be compensated in the distribution area at each single point time.

[0038] Step S104: Based on the total saved power, determine the target location of the end reactive power compensation device in at least one remaining location.

[0039] In the technical solution provided by step S104 of the present invention, the target location can be used to represent the optimal installation location of the terminal reactive power compensation device in the transformer area at all times.

[0040] Optionally, after performing power flow calculations on at least one remaining location (excluding duplicate locations) in the candidate locations, attribute data in the transformer area, and operational data to obtain the total power saving of the transformer area, the target location of the end reactive power compensation device is determined in at least one remaining location based on the total power saving. For example, by sorting the total power saving, the target location of the end reactive power compensation device can be determined in at least one remaining location. That is, the optimal installation location for the end reactive power compensation device to be deployed in the transformer area at all times can be determined.

[0041] Optionally, based on the total energy saved after sorting, the target location of the end reactive power compensation device can be selected from the remaining locations. That is, the optimal installation location of the end reactive power compensation device to be deployed in the distribution area can be selected at all times.

[0042] In steps S101 to S104 of this application, the target power factor at the end is obtained. Then, based on the obtained target power factor, power users in the transformer area whose power factor is less than the target power factor can be screened. Based on the number of locations of the power users and the number of terminal reactive power compensation devices to be deployed in the transformer area, the candidate locations of the terminal reactive power compensation devices can be determined. Then, by performing power flow calculation on at least one remaining location (excluding duplicate locations) in the candidate locations, the attribute data and operation data in the transformer area, the total power saving of the transformer area can be obtained. Finally, by sorting the total power saving, the target location of the terminal reactive power compensation device can be determined from at least one remaining location. This achieves the goal of ensuring that the power saving effect meets the expected purpose, solves the technical problem of difficulty in ensuring the balance between investment and energy saving, and realizes the technical effect of ensuring the balance between investment and energy saving.

[0043] The method described in this embodiment will be further described below.

[0044] As an optional embodiment, step S102, determining candidate locations for the terminal reactive power compensation devices based on the terminal target power factor and the number of terminal reactive power compensation devices to be deployed in the transformer area, includes: determining a list of locations for the terminal reactive power compensation devices in response to the original power factor in the transformer area being less than the terminal target power factor; and determining candidate locations for the terminal reactive power compensation devices based on the number of reactive power compensation devices and at least one location in the location list.

[0045] In this embodiment, the original power factor can be used to represent the power factor of any phase of the power user, and the location list of the end reactive power compensation device can be used to represent an optimized location list storing the locations of the power users.

[0046] Optionally, after obtaining the target power factor at the end, the location list of the terminal reactive power compensation device can be determined by judging the relationship between the original power factor in the transformer area and the target power factor at the end. If the original power factor of the load in the transformer area is less than the target power factor at the end, the location of the power user is added to the location list of the terminal reactive power compensation device. Thus, the location list of the terminal reactive power compensation device can be obtained. Then, based on the number of terminal reactive power compensation devices and at least one location in the location list, the candidate location of the terminal reactive power compensation device can be determined.

[0047] As an optional embodiment, determining candidate locations for end-of-line reactive power compensation devices based on the number of end-of-line reactive power compensation devices and at least one location from the location list includes: determining combined locations for end-of-line reactive power compensation devices based on the number and location; performing power flow calculations on the combined locations, attribute data, and operating data to obtain the current power loss of the transformer area; and determining candidate locations based on the original power loss and current power loss of the transformer area.

[0048] In this embodiment, the aforementioned combined location can be used to represent all combinations between the location of the power user and the end reactive power compensation device, and the aforementioned current power loss can be used to represent the optimized power loss corresponding to different combinations.

[0049] Optionally, after determining the list of locations for the terminal reactive power compensation devices in response to the original power factor of the power load in the transformer area being less than the target power factor at the end, based on the number of locations of the power users and the number of terminal reactive power compensation devices to be deployed in the transformer area, all possible combinations of power user locations and terminal reactive power compensation devices can be derived. That is, the combined locations of the terminal reactive power compensation devices can be determined. Then, by performing power flow calculations on the combined locations, attribute data, and operating data, the current power loss corresponding to different combined locations can be obtained. Based on the original power loss and current power loss of the transformer area, candidate locations can be determined.

[0050] Optionally, if the original power loss of the transformer area is greater than the current power loss, then the transformers are sorted according to the current power loss, and the position corresponding to the minimum current power loss is output, and the position corresponding to the minimum current power loss is determined as a candidate position for the end reactive power compensation device.

[0051] Optionally, if the original power loss of the transformer area is less than the current power loss, the position corresponding to the current power loss is filtered, and only other current power losses less than the original power loss are sorted. The position corresponding to the smallest other current power loss is output, and the position corresponding to the smallest other current power loss is determined as a candidate position for the end reactive power compensation device.

[0052] As an optional embodiment, the method for determining the location of the end-point reactive power compensation device may further include: performing power flow calculations on attribute data and operating data to obtain the original power loss.

[0053] In this embodiment, the aforementioned raw power loss can be used to represent the power loss of a transformer substation where no end-of-line reactive power compensation device has been deployed.

[0054] Optionally, power flow calculations can be performed on attribute data and operational data to obtain the original power loss. For example, by performing power flow calculations on the transformer area topology model, the attribute data of the user, and operational data such as the power and electricity of the transformer area at each time, power flow calculation results can be obtained. The power flow calculation results may include at least: line loss rate, original power loss, and the amount of power supplied to the transformer area at the current time.

[0055] As an optional embodiment, step S103 involves performing power flow calculations on at least one remaining location (excluding duplicate locations) in the candidate locations, attribute data in the transformer area, and operational data to obtain the total power saving of the transformer area. This includes: performing power flow calculations on at least one remaining location, attribute data, and operational data at each time point to obtain the target compensation capacity of the transformer area at each time point; and analyzing the rated capacity of the terminal reactive power compensation device and the target compensation capacity to obtain the total power saving.

[0056] In this embodiment, the aforementioned target compensation capacity can be used to represent the required compensation capacity of the transformer area at each time point.

[0057] Optionally, after determining the candidate locations of the terminal reactive power compensation devices based on the target power factor at the end and the number of terminal reactive power compensation devices to be deployed in the distribution area, at least one remaining location can be obtained by deleting duplicate locations among the candidate locations, that is, by deleting multiple identical locations where terminal reactive power compensation devices are to be deployed in the distribution area. Then, at each time point, by performing power flow calculations on the at least one remaining location, attribute data, and operating data, the target compensation capacity of the distribution area at each time point can be obtained. Then, by analyzing the rated capacity of the terminal reactive power compensation devices and the target compensation capacity, the actual compensation capacity at each remaining location can be determined. Then, by performing power flow calculations on the remaining locations, attribute data, and the actual compensation capacity at each remaining location, the optimized power loss of the distribution area at each time point can be obtained. Finally, by comparing the optimized power loss with the original power loss, the total power saving can be obtained.

[0058] Optionally, if the rated capacity of the terminal reactive power compensation device can meet the target compensation capacity, the terminal reactive power compensation device is used to compensate according to the size of the target compensation capacity at each time. Then, power flow calculation is performed on the remaining location, attribute data, and actual compensation capacity at each remaining location to obtain the optimized power loss of the transformer area at each time. By comparing the optimized power loss with the original power loss, the total power consumption of the transformer area after compensation can be obtained. Similarly, the total power saving at the total time can be determined.

[0059] Optionally, if the rated capacity of the terminal reactive power compensation device does not meet the target compensation capacity, the terminal reactive power compensation device is used to compensate according to its rated capacity at each time. Then, power flow calculation is performed on the remaining locations, attribute data, and the actual compensation capacity (i.e., rated capacity) at each remaining location to obtain the optimized power loss of the transformer area at each time. By comparing the optimized power loss with the original power loss, the total power consumption of the transformer area after compensation can be obtained. Similarly, the total power saving at the total time can be determined.

[0060] As an optional embodiment, step S104, based on the total saved power, determines the target location of the end reactive power compensation device in at least one remaining location, including: sorting the total saved power; and in at least one remaining location, determining the remaining location in the transformer area where the sorted total saved power corresponds to the end reactive power compensation device to be deployed as the target location.

[0061] In this embodiment, by sorting the total power saving, the remaining position in the distribution area corresponding to the sorted total power saving can be determined as the target position. That is, it can be determined as the optimal installation position of the terminal reactive power compensation device in the distribution area at all times.

[0062] Optionally, by sorting the total power saving of different schemes from largest to smallest, the top M schemes can be output as the preferred schemes, where M can be any reasonable natural number. The preferred schemes can include at least the optimal installation location of the end reactive power compensation device in the distribution area at all times. For example, M can be 8, 10, 11, etc. This is only an example and is not specifically limited.

[0063] This embodiment obtains the target power factor at the end point. Then, based on the obtained target power factor, power users in the transformer substations with a power factor lower than the target power factor can be screened out. Based on the number of locations of these power users and the number of terminal reactive power compensation devices to be deployed in the transformer substations, candidate locations for the terminal reactive power compensation devices can be determined. Then, by performing power flow calculations on at least one remaining location (excluding duplicate locations) among the candidate locations, the attribute data and operating data of the transformer substations, the total power saving of the transformer substations can be obtained. Finally, by sorting the total power saving, the target location of the terminal reactive power compensation device can be determined from at least one remaining location. This achieves the goal of ensuring that the power saving effect meets expectations, solves the technical problem of difficulty in ensuring a balance between investment and energy saving, and realizes the technical effect of ensuring a balance between investment and energy saving.

[0064] Example 2

[0065] The technical solutions of the embodiments of the present invention will be illustrated below with reference to preferred embodiments.

[0066] Reactive power compensation in low-voltage distribution areas often involves centralized compensation at the low-voltage busbar of the 10kV transformer by installing low-voltage parallel capacitor banks. This can improve the power factor and voltage amplitude of the distribution area, and also minimize the flow of reactive current from the low-voltage distribution area into 10kV and higher-level lines, thus preventing increased line losses. However, in this method, reactive current still exists in the low-voltage lines, and the flow of reactive current in the low-voltage distribution area remains unchanged from before the treatment. Furthermore, the 400V line has a relatively thin diameter and high resistance, making line losses a significant concern. In addition, in actual production, the installation of end-point reactive power compensation devices relies heavily on personnel experience for site selection, often resulting in energy-saving effects that fall short of expectations. This leads to a technical challenge in balancing investment and energy conservation.

[0067] In a related technology, a reactive power compensation planning method based on a tabu search algorithm is disclosed. This method may include the following steps: setting network parameters, a tabu list, and voltage constraints, with the tabu list initially empty; performing power flow calculations on the network parameters to randomly generate an initial solution and calculating the fitness value corresponding to the initial solution; performing a neighborhood search on the initial solution using a preset improved neighborhood search method to generate multiple candidate solutions and calculating the fitness value corresponding to each candidate solution; performing power flow calculations on each candidate solution to obtain the voltage value corresponding to each candidate solution; determining whether the voltage value corresponding to each candidate solution satisfies the voltage constraints, and obtaining the satisfied voltage value. Candidate solutions to the constraints and their corresponding fit values ​​are identified. Candidate solutions satisfying the voltage constraints are selected using the disregard criterion and taboo attributes in the taboo search algorithm to obtain the current solution and the current optimal solution. The current solution is used as the initial solution for iteration, and the current solution is added to the taboo list to update the taboo list until the current optimal solution after iteration satisfies the termination criterion. The current optimal solution after iteration is then taken as the optimal solution, and the fit value corresponding to the current optimal solution after iteration is output as the optimal fit value. Based on the optimal solution, the installation location and compensation capacity of the reactive power compensation device are planned, and based on the optimal fit value, the maximum loss reduction benefit of the distribution network is planned.

[0068] However, this method only uses tabu search and power flow calculation to quickly select the current solution and the current optimal solution, and uses the current solution as the initial solution for iteration until the current optimal solution after iteration meets the termination criterion. Then, the current optimal solution after iteration is taken as the optimal solution. It cannot combine the actual number of reactive power compensation devices, exhaustively enumerate all different combination schemes, and substitute all schemes into the power flow calculation to obtain the annual power saving, thereby giving the optimal scheme among all schemes, so as to achieve a balance between investment and energy saving.

[0069] However, this invention proposes a method for determining the location of a terminal reactive power compensation device. By transforming the determination of the installation location of the terminal reactive power compensation device into a mathematical calculation problem, the method first determines the location information of power users that are eligible to install the reactive power compensation device. Then, combined with the actual number of reactive power compensation devices, it exhaustively enumerates all different combination schemes and substitutes all schemes into the power flow calculation to obtain the annual power saving. Thus, it gives the optimal scheme among all schemes, thereby achieving the goal of ensuring that the power saving effect meets expectations. This solves the technical problem of difficulty in ensuring the balance between investment and energy saving, and achieves the technical effect of ensuring the balance between investment and energy saving.

[0070] Figure 2 This is a flowchart illustrating a method for calculating the optimal installation location of a quantitative terminal reactive power compensation device under optimal power flow conditions, according to an embodiment of the present invention. Figure 2 As shown, the method may include the following steps:

[0071] Step S200: Enter the calculation parameters.

[0072] After entering the calculation parameters, proceed to step S201, and obtain the running data of the N time points in the data interval and the data area model based on the date of the station area and the data interval, where N is a natural number.

[0073] After obtaining the operating data of the N points of the data range based on the date of the power distribution area and the data interval, proceed to steps S202 and S203 to obtain the location data of all power users and determine whether the power factor is not up to standard.

[0074] If the power factor is satisfactory, return to step S202.

[0075] If the power factor does not meet the standard, proceed to steps S204, S205, and S206 to add the location of the power user to the list of optimized locations. Based on the actual number of reactive power compensation devices and the number of power user locations that need to be optimized, exhaustively enumerate all different combination schemes, bring all schemes into the power flow calculation in turn, and determine whether the line loss rate is optimal through the power flow calculation.

[0076] If the line loss rate is optimal, proceed to step S207 and retain the optimal solution as the optimal solution at this moment.

[0077] After retaining the optimal solution for line loss rate as the optimal solution at this moment, proceed to step S208 to determine whether the line loss rate at time point N in the data interval has been calculated.

[0078] If the line loss rate at point N in the data interval has not been calculated, return to step S202. If the line loss rate at point N in the data interval has been calculated, proceed to steps S209, S210, S211, S212, S213, and S214 to obtain the optimal single-point solution for all time intervals, eliminate duplicate solutions, iterate through all solutions, substitute the solutions into the N points in the data interval for power flow calculation, calculate the compensation capacity based on the target power factor and the operating data at that time, and determine whether the rated capacity of the equipment meets the compensation requirements at that time.

[0079] If the rated capacity of the equipment does not meet the compensation requirement at that moment, proceed to steps S215, S216, S217 and S218 to perform capacity compensation based on the rated capacity of the equipment, calculate the power saving at each moment, calculate the cumulative power saving of the deduplicated scheme at all moments in the data interval, and determine whether the cumulative power saving of the selected data interval at all moments has been calculated.

[0080] If the rated capacity of the equipment meets the compensation requirements at that moment, proceed to steps S219, S216, S217 and S218 to perform capacity compensation according to the requirements, calculate the power saving at each moment, calculate the power saving of the deduplicated scheme at all moments in the data interval, and determine whether the power saving at all moments in the selected data interval has been calculated.

[0081] If the cumulative value of the power saving for all moments in the selected data interval has been calculated, proceed to steps S220 and S221. Calculate the annual power saving based on the cumulative value of the power saving for all moments in the data interval, and obtain the top M optimal optimization schemes based on the annual power saving.

[0082] If the cumulative value of the power saving for all times in the selected data interval has not been calculated, return to step S212.

[0083] Optionally, the calculation method for the optimal installation location of the quantitative terminal reactive power compensation device under optimal power flow conditions may further include the following steps:

[0084] Step A: During the parameter setting process, you need to enter the boundary conditions, data range and other parameters involved in the calculation of the optimal installation position of the quantitative terminal reactive power compensation device in the calculation window page, as well as obtain the model data of the transformer area and the operating data of each single point at time within the data range of the transformer area, thereby forming the parameters of the transformer area power flow calculation task.

[0085] Optionally, step A above may include the following steps:

[0086] Step A1: For the transformer area where reactive power compensation devices are installed, in the calculation window, sequentially input the boundary conditions, data range, and other parameters involved in calculating the optimal installation location of the quantitative terminal reactive power compensation device. The boundary conditions may include at least: the number of reactive power compensation devices, the target power factor, and the rated capacity of the compensator. Other parameters may include at least: meter loss, ambient temperature during power flow calculation, etc. The rated capacity of the compensator can be used to represent the maximum reactive power value that the reactive power compensation device can compensate. This is only an example and is not specifically limited.

[0087] Step A2: Obtain the model data of the transformer area. The model data may include: transformer area topology model, meter type, phase of user, conductor type, conductor length, service drop line type, and service drop line length.

[0088] Step A3: Obtain the operating data at each single point in the selected data interval of the transformer area. The operating data may include: active power, reactive power, power factor, user voltage, active power, and reactive power at each time point of the transformer area.

[0089] Step B involves performing power flow calculations based on the model data and operational data of the transformer area. Qualified power users are selected based on factors such as the target power factor. Taking into account the actual number of reactive power compensation devices, all different combinations are enumerated and sequentially incorporated into the power flow calculations to determine the optimal installation location of the reactive power compensation devices at each individual point in time.

[0090] Optionally, step B above may include the following steps:

[0091] Step B1: Perform power flow calculation based on the model data and operational data of the transformer area, and save the original power flow calculation results at the current moment. The original power flow calculation results at the current moment may include: power supply, power loss, theoretical line loss rate, etc.

[0092] Optionally, the calculation of the optimal installation location of the reactive power compensation device needs to meet the following prerequisites: (1) the power flow calculation is normal and the calculation results are not abnormal; (2) the user phase is entered according to the actual situation on site; (3) the operation data of the head end and users are reasonable and normal; (4) there are power users whose three-phase power factor is lower than the target power factor.

[0093] Step B2: Based on the target power factor and other factors set in step A1, select qualified power users. If the power factor of any phase of a power user is less than the target power factor, add the location of that power user to the list of optimized locations.

[0094] Optionally, the above screening process needs to meet the following rules: (1) The user access phase is three phases A, B and C; (2) The total power factor of the power user is less than the target power factor set in step A1. This is just an example and is not specifically limited.

[0095] Step B3: Based on the actual number of reactive power compensation devices and the number of power users whose locations need to be optimized, exhaustively enumerate all different combination schemes, bring all the schemes into the power flow calculation in turn, filter out the schemes with losses greater than the original losses, sort the filtered schemes according to losses, and output the scheme with the minimum loss, that is, the scheme with the optimal installation location at a single point in time.

[0096] Optionally, the process of sequentially substituting all the schemes into the power flow calculation may include the following steps:

[0097] Step B31: The minimum value between the reactive power required for the power user to improve the power factor to the target power factor and one-third of the rated capacity of the reactive power compensation device is taken. The new reactive power value is obtained by subtracting the minimum value from the original reactive power of the power user.

[0098] Step B32: Substitute the new reactive power value after subtracting the minimum value into the power flow calculation, and determine whether the loss is less than the original loss based on the power flow calculation result.

[0099] Step B33: Sort the calculation results of all schemes and output the scheme with the minimum loss, that is, output the scheme with the optimal installation position at a single point in time.

[0100] Step B4: Determine whether the calculation of energy saving at each time point within the selected data interval is complete. If not, continue to calculate the energy saving at the remaining time points within the data interval in a loop until the energy saving at each time point is calculated. Then, output the single-point optimal installation location scheme for all time points within the data interval.

[0101] Step C: Remove duplicate solutions from the optimal solutions at all single points within the data interval. Calculate the power flow by iteratively substituting the remaining solutions into all time intervals within the data interval. Based on the cumulative power savings at each time point, calculate the annual power savings. Based on the annual power savings, output the optimal solution among all solutions.

[0102] Optionally, step C above may include the following steps:

[0103] Step C1: Collect and organize the optimal solutions for all single-point moments, and remove duplicate solutions.

[0104] Step C2 involves sequentially inputting the deduplicated scheme into all time intervals within the data range for power flow calculation. The calculated power flow results are then compared with the original losses to determine the energy savings. The calculation principle for energy savings at each time interval is as follows: Based on the target power factor set in step A1 (the power factor to be achieved after optimization) and the operating data at that time, the required compensation capacity can be calculated. It is then determined whether the rated capacity of the reactive power compensation device meets the compensation requirements at that time. If it does, compensation is performed as needed, and the energy savings are determined by comparing the power flow calculation results at that time with the energy consumption before optimization. If the requirements are not met, compensation is performed based on the rated capacity of the reactive power compensation device, and the energy savings are determined by comparing the power flow calculation results at that time with the energy consumption before optimization.

[0105] Optionally, the process of substituting the deduplicated scheme into all time intervals within the data range for power flow calculation may include the following steps:

[0106] Step C21: Dynamically determine whether the power factor of the power user's location at that moment is lower than the target power factor.

[0107] Step C22: The minimum reactive power required for the power user to improve the power factor to the target power factor is taken from one-third of the rated capacity of the reactive power compensation device. The original reactive power of the power user is subtracted from the minimum value to obtain the new reactive power value. Power flow calculation is performed to calculate the line loss of the transformer area after the reactive power compensation device is put into operation. This line loss is compared with the original loss when the device is not put into operation to obtain the power saving.

[0108] Step C23: For each scheme, all time data must be substituted in cyclically, and the power saving of the scheme at each time should be dynamically calculated according to the above principle.

[0109] For example, the relationship between the calculated total capacity and single-phase capacity of the reactive power compensation device can be shown as follows:

[0110] If the total capacity of the reactive power compensation device is 5 kvar, then the maximum capacity of phase-by-phase compensation is 1.7 kvar. That is, the maximum phase-by-phase compensation capacity is 1 / 3 of the total capacity of the reactive power compensation device. In other words, taking a configuration of 6 groups (3*32+16+8+4) compensating 124 kvar as an example, each single phase of A, B, and C can compensate up to 41.3 kvar. Among them, the capacity for compensation to power users can be determined according to the target power factor and the phase of the power user. The maximum compensation capacity can be 1 / 3 of the total capacity of the reactive power compensation device.

[0111] Step C3 calculates the cumulative power saving of the deduplicated scheme at all times within the data interval.

[0112] Step C4: Calculate the annual energy saving of different schemes based on the cumulative value of energy saving at all times in the data interval. Sort the annual energy saving in descending order and output the top M (e.g., top 10) schemes as the preferred schemes.

[0113] Figure 3 This is a flowchart of a method for determining a combination scheme of reactive power compensation devices according to an embodiment of the present invention, such as... Figure 3 As shown, the method may include the following steps:

[0114] Step S300: Based on parameters such as the target power factor, find the power users that meet the conditions.

[0115] After identifying suitable power users based on parameters such as the target power factor, proceed to step S301 to arrange and combine schemes according to the compensator and the power users.

[0116] After arranging and combining schemes based on the compensator and power users, proceed to step S302, substitute the obtained schemes into the power flow calculation, and save the results obtained from the power flow calculation corresponding to each scheme.

[0117] After substituting the obtained schemes into the power flow calculation and saving the results corresponding to each scheme obtained from the power flow calculation, proceed to step S303 to sort the results corresponding to each scheme.

[0118] After sorting the results corresponding to each solution, proceed to step S304 to output the optimal solution corresponding to the optimal result.

[0119] Figure 4 This is a flowchart of a method for determining the optimal solution of a reactive power compensation device according to an embodiment of the present invention, such as... Figure 4 As shown, the method may include the following steps:

[0120] Step S400: Obtain the loop scheme.

[0121] After obtaining the cycle scheme, proceed to step S401 to obtain the cycle date.

[0122] After obtaining the cycle date, proceed to step S402 to obtain the transformer area topology model.

[0123] After obtaining the transformer area topology model, proceed to step S403, and adjust the reactive power of the power users according to the plan.

[0124] After adjusting the reactive power of power users according to the plan, the process proceeds to step S404 to generate a calculation model for the optimized power consumption of the distribution area equipped with reactive power compensation devices.

[0125] After generating a calculation model for the optimized power consumption of the distribution area with reactive power compensation devices, proceed to step S405 to calculate the annual power savings for different schemes.

[0126] After calculating the annual electricity savings of different schemes, proceed to step S406, and output the top M schemes based on the sorting results of the different schemes.

[0127] In this embodiment, the location data of all power users is acquired, and it is determined whether the power factor is not up to standard. If the power factor is not up to standard, the location of the power user is added to the list of optimized locations. Based on the actual number of reactive power compensation devices and the number of power user locations that need to be optimized, all different combination schemes are exhaustively enumerated. All schemes are sequentially substituted into the power flow calculation, and the line loss rate is determined through the power flow calculation. If the line loss rate is optimal, it is determined whether the line loss rate at N points in the data interval has been calculated. If the line loss rate at N points in the data interval has been calculated, the optimal point scheme for each single point in the interval is obtained, duplicate schemes are eliminated, all schemes are iterated, and the schemes are substituted into the N points in the data interval for power flow calculation. Based on the target power factor and the operation at that time... The system uses data to calculate compensation capacity and determine whether the rated capacity of the equipment meets the compensation requirements at any given time. If the rated capacity meets the compensation requirements, capacity compensation is performed according to the requirements. The system calculates the energy savings at each time point, calculates the energy savings of the deduplicated scheme at all times within the data interval, and determines whether the energy savings at all times within the selected data interval have been calculated. If the cumulative energy savings at all times within the selected data interval have been calculated, the annual energy savings are calculated based on the cumulative energy savings at all times within the data interval. Based on the annual energy savings, the top M optimal optimization schemes are obtained. This solves the technical problem of the difficulty in ensuring a balance between investment and energy saving, and achieves a technical effect that can ensure a balance between investment and energy saving.

[0128] Example 3

[0129] According to an embodiment of the present invention, a location determination device for an end-of-line reactive power compensation device is also provided. It should be noted that this location determination device can be used to execute a location determination method for an end-of-line reactive power compensation device as described in Embodiment 1.

[0130] Figure 5 This is a schematic diagram of a position determination device for an end-of-line reactive power compensation device according to an embodiment of the present invention. Figure 5 As shown, the location determination device 500 of the end reactive power compensation device may include: an acquisition unit 501, a first determination unit 502, a first calculation unit 503, and a second determination unit 504.

[0131] The acquisition unit 501 is used to acquire the terminal target power factor, wherein the terminal target power factor is used to represent the ideal power factor at the compensation location where the terminal reactive power compensation device is deployed.

[0132] The first determining unit 502 is used to determine the candidate locations of reactive power compensation devices based on the target power factor at the end and the number of reactive power compensation devices to be deployed in the transformer area, wherein the candidate locations are used to indicate the locations where the reactive power compensation devices to be deployed in the transformer area.

[0133] The first calculation unit 503 is used to perform power flow calculation on at least one remaining position in the candidate positions excluding duplicate positions, attribute data and operation data in the transformer area, to obtain the total power saving of the transformer area. The duplicate position is used to represent the same position in the transformer area where multiple end reactive power compensation devices are to be deployed. The attribute data is used to represent at least the model data in the transformer area. The operation data is used to represent at least the power of the transformer area at each time.

[0134] The second determining unit 504 is used to determine the target location of the end reactive power compensation device in at least one remaining location based on the total saved power.

[0135] Optionally, the first determining unit 502 may include: a first determining module, configured to determine a list of locations for end reactive power compensation devices in response to the original power factor in the transformer area being less than the target power factor at the end; and a second determining module, configured to determine candidate locations for end reactive power compensation devices based on the number of end reactive power compensation devices and at least one location in the location list.

[0136] Optionally, the second determining module may include: a first determining submodule, used to determine the combined location of the end reactive power compensation devices based on the quantity and location; a calculation submodule, used to perform power flow calculation on the combined location, attribute data and operating data to obtain the current power loss of the transformer area; and a second determining submodule, used to determine candidate locations based on the original power loss and current power loss of the transformer area.

[0137] Optionally, the location determination device 500 of the end reactive power compensation device may further include: a second calculation unit for performing power flow calculation on attribute data and operating data to obtain the original power loss.

[0138] Optionally, the first calculation unit 503 may include: a calculation module, used to perform power flow calculation on at least one remaining location, attribute data and operating data at each time to obtain the target compensation capacity of each transformer area at each time; and an analysis module, used to analyze the rated capacity and target compensation capacity of the terminal reactive power compensation device to obtain the total power saving at each time.

[0139] Optionally, the second determining unit 504 may include: a sorting module for sorting the total saved power; and a third determining module for determining, in at least one remaining location, the remaining location in the distribution area where the sorted total saved power corresponds to the terminal reactive power compensation device to be deployed as the target location.

[0140] In this embodiment, an acquisition unit is used to acquire the terminal target power factor, wherein the terminal target power factor is used to represent the ideal power factor at the compensation location where the terminal reactive power compensation device is deployed; a first determination unit is used to determine the candidate locations of the reactive power compensation devices based on the terminal target power factor and the number of reactive power compensation devices to be deployed in the transformer area, wherein the candidate locations are used to represent the locations where the reactive power compensation devices are to be deployed in the transformer area; a first calculation unit is used to perform power flow calculation on at least one remaining location (excluding duplicate locations) among the candidate locations, attribute data and operating data in the transformer area to obtain the total power saving of the transformer area, wherein the duplicate locations are used to represent the same location where multiple reactive power compensation devices are to be deployed in the transformer area, attribute data are used to represent at least the model data in the transformer area, and operating data are used to represent at least the power of the transformer area at each time; a second determination unit is used to determine the target location of the terminal reactive power compensation device in at least one remaining location based on the total power saving, thereby solving the technical problem of difficulty in ensuring the balance between investment and energy saving, and achieving the technical effect of ensuring the balance between investment and energy saving.

[0141] Example 4

[0142] According to an embodiment of the present invention, a computer-readable storage medium is also provided, the storage medium including a stored program, wherein the program executes the method for determining the location of the end reactive power compensation device in Embodiment 1.

[0143] Example 5

[0144] According to an embodiment of the present invention, a processor is also provided for running a program, wherein the program is executed by the processor to perform the method for determining the position of the end reactive power compensation device in Embodiment 1.

[0145] Example 6

[0146] According to an embodiment of the present invention, a memory is also provided, which stores a computer program, wherein the computer program is used to execute any of the end reactive power compensation device location determination methods in Embodiment 1.

[0147] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0148] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0149] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between units or modules may be electrical or other forms.

[0150] The units described as separate components may or may not be physically separate. Similarly, the components shown as units may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0151] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0152] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0153] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for determining the location of an end-of-line reactive power compensation device, characterized in that, include: Obtain the terminal target power factor, wherein the terminal target power factor is used to represent the ideal power factor at the compensation location where the terminal reactive power compensation device is deployed; Based on the target power factor at the terminal and the number of terminal reactive power compensation devices to be deployed in the transformer area, candidate locations for the terminal reactive power compensation devices are determined, wherein the candidate locations are used to indicate the locations where the terminal reactive power compensation devices are to be deployed in the transformer area; Power flow calculations are performed on at least one remaining location (excluding duplicate locations) in the candidate locations, attribute data and operating data in the transformer area to obtain the total power saving of the transformer area. The duplicate locations are used to represent the same location in the transformer area where multiple terminal reactive power compensation devices are to be deployed. The attribute data are used to represent at least the model data in the transformer area. The operating data are used to represent at least the power of the transformer area at each time. Based on the total saved power, the target location of the end reactive power compensation device is determined in at least one of the remaining locations; The process of determining candidate locations for the reactive power compensation devices based on the target power factor at the terminal and the number of such devices to be deployed in the distribution area includes: determining a list of locations for the reactive power compensation devices in response to the original power factor in the distribution area being less than the target power factor at the terminal; and determining candidate locations for the reactive power compensation devices based on the number of such devices and at least one location in the list. The process of determining candidate locations for the terminal reactive power compensation devices based on the number of such devices and at least one location from the location list includes: determining a combined location for the terminal reactive power compensation devices based on the number and the location; performing power flow calculations on the combined location, the attribute data, and the operating data to obtain the current power loss of the transformer substation; and determining the candidate locations based on the original power loss and the current power loss of the transformer substation. The process of performing power flow calculations on at least one remaining location (excluding duplicate locations among the candidate locations), attribute data, and operational data in the transformer area to obtain the total power saving of the transformer area includes: performing power flow calculations on at least one remaining location, attribute data, and operational data at each time point to obtain the target compensation capacity of the transformer area at each time point; and analyzing the rated capacity of the terminal reactive power compensation device and the target compensation capacity to obtain the total power saving at each time point.

2. The method according to claim 1, characterized in that, The method further includes: Power flow calculations are performed on the attribute data and the operational data to obtain the original power loss.

3. The method according to any one of claims 1 to 2, characterized in that, Based on the total saved power, determining the target location of the end-point reactive power compensation device in at least one of the remaining locations includes: Sort the total saved electricity. In at least one of the remaining locations, the remaining location in the distribution area corresponding to the sorted total saved power, where the terminal reactive power compensation device is to be deployed, is determined as the target location.

4. A location determination device for an end-of-line reactive power compensation device, characterized in that, To implement the method of claims 1-3, the method comprises: An acquisition unit is used to acquire the terminal target power factor, wherein the terminal target power factor is used to represent the ideal power factor at the compensation location where the terminal reactive power compensation device is deployed; The first determining unit is used to determine the candidate location of the terminal reactive power compensation device based on the terminal target power factor and the number of terminal reactive power compensation devices to be deployed in the transformer area, wherein the candidate location is used to indicate the location where the terminal reactive power compensation device is to be deployed in the transformer area; The first calculation unit is used to perform power flow calculation on at least one remaining position (excluding duplicate positions) in the candidate positions, attribute data and operation data in the transformer area, to obtain the total power saving of the transformer area. The duplicate position is used to represent the same position in the transformer area where multiple terminal reactive power compensation devices are to be deployed. The attribute data is used to represent at least the model data in the transformer area. The operation data is used to represent at least the power of the transformer area at each time. The second determining unit is used to determine the target location of the end reactive power compensation device in at least one of the remaining locations based on the total saved power.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the computer-readable storage medium to perform the location determination method of the end-effector reactive power compensation device according to any one of claims 1 to 3.

6. A processor, characterized in that, The processor is used to run a program, wherein the program, when run by the processor, executes the method for determining the location of the end reactive power compensation device according to any one of claims 1 to 3.

7. A memory, characterized in that, The memory stores a computer program, wherein the computer program is used to execute the method for determining the position of the end reactive power compensation device according to any one of claims 1 to 3.

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