A method, apparatus, electronic equipment and medium for configuring energy storage capacity in a wind farm
By obtaining the location and construction capacity of the generator sets, combined with the energy storage method and construction address of the energy storage power station, the energy storage capacity of the energy storage power station is calculated. This solves the problem of how to reduce the cost of the energy storage power station while meeting the energy storage needs of the wind farm, and achieves more accurate and effective power generation information and optimized configuration of the energy storage power station.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUAILAI CLOUD EXCHANGE NETWORK TECH CO LTD
- Filing Date
- 2023-05-05
- Publication Date
- 2026-05-26
AI Technical Summary
How to reduce the cost of energy storage power stations while meeting the energy storage needs of wind farms, especially how to rationally allocate energy storage capacity within wind farms to reduce curtailment losses and lower the construction costs of energy storage power stations.
By obtaining the location and construction capacity of the generator sets, the effective power generation information is determined. Combined with the energy storage method and construction address of the energy storage power station, the power loss is calculated, and then the energy storage capacity of the energy storage power station is determined to optimize the construction cost of the energy storage power station.
While meeting the energy storage needs of wind farms, we can reduce the construction cost of energy storage power stations, reduce losses caused by wind farm curtailment, and improve the accuracy of effective power generation information.
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Figure CN116632870B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of wind farm planning and design, and in particular to a method, apparatus, electronic equipment and medium for configuring energy storage capacity in a wind farm. Background Technology
[0002] Wind energy is a renewable energy source with randomness and intermittency. The output power of wind power generation is greatly affected by factors such as the environment, season, and time of day. Therefore, the output power of wind turbines in wind farms may not always match the load demand. Installing energy storage stations in wind farms can store electricity during periods of high wind or low load, and discharge it during periods of low wind or high load. By transferring electricity, energy storage stations can smooth out peak and valley loads, thereby reducing the loss of curtailed electricity from wind farms.
[0003] While larger energy storage power stations can better balance fluctuations in wind farm output power to some extent, their costs also increase. Therefore, reducing the cost of energy storage power stations while meeting the energy storage needs of wind farms is a pressing issue. Summary of the Invention
[0004] In order to reduce the cost of energy storage power stations, this application relates in particular to a method, apparatus, electronic equipment and medium for configuring energy storage capacity in wind farms.
[0005] Firstly, this application provides a method for configuring energy storage capacity in a wind farm, employing the following technical solution:
[0006] A method for configuring energy storage capacity in a wind farm includes:
[0007] The location information and construction capacity of the generator set are obtained. The construction capacity includes the number of generators of at least one type included in the generator set. The location information includes the location of each generator in the generator set.
[0008] Based on the location information and construction capacity of the generator set, the effective power generation information is determined. The effective power generation information includes the effective power generation of the generator set in each unit cycle within a preset period, and the preset period includes several unit cycles.
[0009] Based on the effective power generation information, the basic energy storage capacity is determined, which is the maximum amount of electricity that the generator set needs to store within a preset period.
[0010] Obtain the energy storage method and construction location of the energy storage power station;
[0011] Based on the energy storage method and construction address of the energy storage power station and the location information of the generator set, the power loss is determined;
[0012] The energy storage capacity of the energy storage power station is determined based on the power loss and the basic energy storage capacity.
[0013] By adopting the above technical solution, based on the location information and construction capacity of the generator set, the effective power generation corresponding to each unit cycle within a preset period is determined. Then, based on the effective power generation information, the maximum amount of electricity that the generator set needs to store within the preset period is determined to reduce losses caused by wind farm curtailment. Based on the energy storage method and construction address of the energy storage station, as well as the location information and construction capacity of the generator set, the amount of electricity lost during the storage and transmission process within the preset period is determined. The difference between the amount of electricity that the generator set needs to store within the preset period and the amount of electricity lost is determined as the energy storage capacity of the energy storage station. Energy storage stations built according to this capacity can reduce construction costs while meeting the energy storage needs of wind farms.
[0014] In one possible implementation, determining the effective power generation information based on the location information and construction capacity of the generator set includes:
[0015] Obtain the location of the generator set;
[0016] Based on the location information and orientation of the generator set, the effective wind speed information is determined. The effective wind speed information includes the effective wind speed at which the generator set can generate wind power in each unit cycle within a preset period.
[0017] Based on the effective wind speed information and the construction capacity, the predicted power generation information is determined, which includes the predicted power generation of the generator unit for each unit cycle within a preset period.
[0018] Acquire several historical power generation data for the same period, wherein the historical power generation data includes the historical power generation of the generator unit for each unit cycle within the historical period, and the historical period is the same as the time period of the preset period;
[0019] Based on the predicted power generation information and the power generation information of several historical periods, the effective power generation information is determined.
[0020] By adopting the above technical solution, the distribution of effective wind speed in the area where the generator set is located within a preset period is determined based on the generator set's location information and orientation. Within the range corresponding to the effective wind speed, the generator set can generate wind power, thus determining a more accurate effective wind speed. Based on the effective wind speed information and the generator set's construction capacity, the predicted power generation corresponding to each unit cycle of the generator set within the preset period is determined. By combining the historical power generation of the generator set within each unit cycle of several historical periods of the same period, the predicted power generation is calibrated, and the effective power generation corresponding to each unit cycle within the preset period is determined, thereby improving the accuracy of the effective power generation information.
[0021] In one possible implementation, determining the effective power generation information based on the predicted power generation information and the plurality of historical power generation information for the same period includes:
[0022] Based on the predicted power generation information, the predicted total power generation corresponding to the preset period is determined;
[0023] Based on the aforementioned historical power generation information for the same period, the total historical power generation corresponding to each of the several historical periods is determined.
[0024] Based on the difference between the predicted total power generation and each of the historical total power generation, the weights corresponding to the predicted power generation information and the weights corresponding to the several historical power generation information for the same period are determined.
[0025] Based on the weights corresponding to the predicted power generation information and the weights corresponding to the several historical power generation information for the same period, the effective power generation information is determined.
[0026] By adopting the above technical solution, the predicted total power generation for a preset period is determined based on the predicted power generation information; the historical total power generation for each of several historical periods is determined based on the power generation information of several historical periods; the weights corresponding to the predicted power generation information and the weights corresponding to the power generation information of several historical periods are determined based on the difference between the predicted total power generation and each historical total power generation; the effective power generation of the generating unit for each unit in each unit period is calculated based on the corresponding weight ratios; and the predicted data is further optimized using historical data to make the determined effective power generation information more accurate.
[0027] In one possible implementation, determining the base energy storage capacity based on the effective power generation information includes:
[0028] The energy storage cycle of the energy storage power station is obtained, where the energy storage cycle is the period during which the energy storage power station performs charging and discharging.
[0029] Based on the energy storage cycle and the effective power generation information, the basic energy storage capacity is determined.
[0030] By adopting the above technical solution, the energy storage cycle of the energy storage power station is obtained. The energy storage cycle is used to characterize the charging and discharging pattern of the energy storage power station, that is, the energy storage power station completes at least one charging and at least one discharging within one energy storage cycle. The effective power generation information is divided according to the energy storage cycle to determine the expected storage capacity that the energy storage power station can store in each energy storage cycle. Then, the basic energy storage capacity is determined based on multiple expected storage capacities, so that the determined basic energy storage capacity is more accurate.
[0031] In one possible implementation, determining the power loss based on the energy storage method and construction address of the energy storage power station and the location information of the generator set includes:
[0032] To obtain the transmission method for power transfer between the energy storage power station and the generator set;
[0033] Based on the construction address of the energy storage power station, the location information of the generator set, and the transmission method, the power loss during transmission is determined;
[0034] Based on the energy storage method of the energy storage power station, the stored power loss is determined;
[0035] The power loss is determined based on the power loss during transmission and the power loss during storage.
[0036] By adopting the above technical solution, the distance between the energy storage power station and the generator set is determined based on the construction address of the energy storage power station and the location information of the generator set. The transmission loss during power transmission is determined based on the transmission method and distance between the energy storage power station and the generator set. The power consumption and storage loss during power conversion or storage are determined based on the energy storage method of the energy storage power station. The sum of the transmission loss and storage loss is then defined as the total power loss, allowing for a more accurate determination of the power that the generator-generated electricity may lose before entering the energy storage station. This enables a more precise determination of the amount of electricity that the energy storage power station needs to store, thereby reducing the construction cost of the energy storage power station.
[0037] In one possible implementation, a method for configuring energy storage capacity in a wind farm also includes:
[0038] Based on the energy storage method of the energy storage power station, the target discharge depth is determined;
[0039] The target energy storage capacity of the energy storage power station is determined based on the target discharge depth and the energy storage capacity of the energy storage power station.
[0040] By adopting the above technical solution, the target discharge depth of the energy storage power station is determined according to its energy storage method. Charging and discharging at the target discharge depth can extend the service life of the energy storage power station. Based on the energy storage capacity and the target discharge depth, the target energy storage capacity of the energy storage power station is determined. By extending the service life of the energy storage power station, the operating cost of the energy storage power station is reduced.
[0041] In one possible implementation, a method for configuring energy storage capacity in a wind farm also includes:
[0042] Obtain power curtailment information and power consumption patterns for the power consumption area corresponding to the wind farm. The power curtailment information includes the amount of power curtailed for each power curtailment period in the power consumption area within a preset period. The power consumption patterns include the amount of electricity provided by the wind farm used by the power consumption area in each unit cycle within the preset period.
[0043] Based on the power rationing information, the power consumption patterns, and the target energy storage capacity of the energy storage power station, the optimal energy storage capacity of the energy storage power station is determined.
[0044] By adopting the above technical solution, the actual power consumption of the power consumption area in each unit cycle within the preset period is determined based on the power restriction amount corresponding to each power restriction period in the power consumption area within the preset period and the power provided by the wind farm in each unit cycle within the preset period. Then, the target energy storage capacity is optimized based on the actual power consumption of the power consumption area in each unit cycle within the preset period, and the optimized energy storage capacity is determined. The energy storage power station built according to the optimized energy storage capacity can meet the power demand of the power consumption area, and the energy storage power station can operate at a better depth of discharge.
[0045] Secondly, this application provides a wind farm energy storage capacity configuration device, which adopts the following technical solution:
[0046] A wind farm energy storage capacity configuration device, comprising:
[0047] The generator set information acquisition module is used to acquire the location information and construction capacity of the generator set. The construction capacity includes the number of generators of at least one type included in the generator set, and the location information includes the location of each generator in the generator set.
[0048] The effective power generation information determination module is used to determine the effective power generation information based on the location information and construction capacity of the generator set. The effective power generation information includes the effective power generation of the generator set in each unit cycle within a preset period, and the preset period includes several unit cycles.
[0049] The basic energy storage capacity determination module is used to determine the basic energy storage capacity based on the effective power generation information. The basic energy storage capacity is the maximum amount of electricity that the generator set needs to store within a preset period.
[0050] The energy storage power station information acquisition module is used to acquire the energy storage method and construction address of the energy storage power station;
[0051] The power loss determination module is used to determine the power loss based on the energy storage method and construction address of the energy storage power station and the location information of the generator set;
[0052] An energy storage capacity determination module is used to determine the energy storage capacity of the energy storage power station based on the power loss and the basic energy storage capacity.
[0053] By adopting the above technical solution, based on the location information and construction capacity of the generator set, the effective power generation corresponding to each unit cycle within a preset period is determined. Then, based on the effective power generation information, the maximum amount of electricity that the generator set needs to store within the preset period is determined to reduce losses caused by wind farm curtailment. Based on the energy storage method and construction address of the energy storage station, as well as the location information and construction capacity of the generator set, the amount of electricity lost during the storage and transmission process within the preset period is determined. The difference between the amount of electricity that the generator set needs to store within the preset period and the amount of electricity lost is determined as the energy storage capacity of the energy storage station. Energy storage stations built according to this capacity can reduce construction costs while meeting the energy storage needs of wind farms.
[0054] In one possible implementation, when determining effective power generation information based on the location information and construction capacity of the generator set, the effective power generation information determination module is specifically used for:
[0055] Obtain the location of the generator set;
[0056] Based on the location information and orientation of the generator set, the effective wind speed information is determined. The effective wind speed information includes the effective wind speed at which the generator set can generate wind power in each unit cycle within a preset period.
[0057] Based on the effective wind speed information and the construction capacity, the predicted power generation information is determined, which includes the predicted power generation of the generator unit for each unit cycle within a preset period.
[0058] Acquire several historical power generation data for the same period, wherein the historical power generation data includes the historical power generation of the generator unit for each unit cycle within the historical period, and the historical period is the same as the time period of the preset period;
[0059] Based on the predicted power generation information and the power generation information of several historical periods, the effective power generation information is determined.
[0060] In one possible implementation, when determining the effective power generation information based on the predicted power generation information and the several historical power generation information from the same period, the effective power generation information determination module is specifically used for:
[0061] Based on the predicted power generation information, the predicted total power generation corresponding to the preset period is determined;
[0062] Based on the aforementioned historical power generation information for the same period, the total historical power generation corresponding to each of the several historical periods is determined.
[0063] Based on the difference between the predicted total power generation and each of the historical total power generation, the weights corresponding to the predicted power generation information and the weights corresponding to the several historical power generation information for the same period are determined.
[0064] Based on the weights corresponding to the predicted power generation information and the weights corresponding to the several historical power generation information for the same period, the effective power generation information is determined.
[0065] In one possible implementation, when determining the basic energy storage capacity based on the effective power generation information, the basic energy storage capacity determination module is specifically used for:
[0066] The energy storage cycle of the energy storage power station is obtained, where the energy storage cycle is the period during which the energy storage power station performs charging and discharging.
[0067] Based on the energy storage cycle and the effective power generation information, the basic energy storage capacity is determined.
[0068] In one possible implementation, when determining power loss based on the energy storage method and construction address of the energy storage power station and the location information of the generator set, the power loss determination module is specifically used for:
[0069] To obtain the transmission method for power transfer between the energy storage power station and the generator set;
[0070] Based on the construction address of the energy storage power station, the location information of the generator set, and the transmission method, the power loss during transmission is determined;
[0071] Based on the energy storage method of the energy storage power station, the stored power loss is determined;
[0072] The power loss is determined based on the power loss during transmission and the power loss during storage.
[0073] In one possible implementation, a wind farm energy storage capacity configuration device further includes:
[0074] The target discharge depth determination module is used to determine the target discharge depth based on the energy storage method of the energy storage power station.
[0075] The target energy storage capacity determination module is used to determine the target energy storage capacity of the energy storage power station based on the target discharge depth and the energy storage capacity of the energy storage power station.
[0076] In one possible implementation, a wind farm energy storage capacity configuration device further includes:
[0077] The power consumption area information acquisition module is used to acquire power curtailment information and power consumption patterns of the power consumption area corresponding to the wind farm. The power curtailment information includes the amount of power curtailed for each power curtailment period in the power consumption area within a preset period. The power consumption pattern is the amount of electricity provided by the wind farm used by the power consumption area in each unit cycle within the preset period.
[0078] The optimized energy storage capacity determination module determines the optimized energy storage capacity of the energy storage station based on the power curtailment information, the power consumption pattern, and the target energy storage capacity of the energy storage station.
[0079] Thirdly, this application provides an electronic device that adopts the following technical solution:
[0080] An electronic device comprising:
[0081] At least one processor;
[0082] Memory;
[0083] At least one application, wherein the at least one application is stored in memory and configured to be executed by at least one processor, the at least one application being configured to: execute the wind farm energy storage capacity configuration method described above.
[0084] Fourthly, this application provides a computer-readable medium, which adopts the following technical solution:
[0085] A computer-readable medium includes: a computer program stored thereon that can be loaded by a processor and execute the above-described wind farm energy storage capacity configuration method.
[0086] In summary, this application includes at least one of the following beneficial technical effects:
[0087] 1. Based on the location and capacity of the generator set, determine the effective power generation of the generator set for each unit cycle within a preset period. Then, based on the effective power generation information, determine the maximum amount of electricity that the generator set needs to store within the preset period to reduce losses caused by wind farm curtailment. Based on the energy storage method and construction address of the energy storage station, as well as the location and capacity of the generator set, determine the amount of electricity lost during the storage and transmission process within the preset period. The difference between the amount of electricity that the generator set needs to store and the amount of electricity lost within the preset period is determined as the energy storage capacity of the energy storage station. The energy storage station built according to the energy storage capacity can reduce the construction cost of the energy storage station while meeting the energy storage needs of the wind farm.
[0088] 2. Based on the location information and orientation of the generator set, the distribution of effective wind speed in the area where the generator set is located within a preset period is determined. Within the range corresponding to the effective wind speed, the generator set can generate wind power, thus determining a more accurate effective wind speed. Based on the effective wind speed information and the construction capacity of the generator set, the predicted power generation corresponding to each unit cycle of the generator set within the preset period is determined. By combining the historical power generation of the generator set in each unit cycle within several historical periods of the same period, the predicted power generation is calibrated to determine the effective power generation corresponding to each unit cycle within the preset period, thereby improving the accuracy of the effective power generation information.
[0089] 3. Based on the predicted power generation information, determine the predicted total power generation corresponding to the preset period; based on several historical power generation information for the same period, determine the historical total power generation corresponding to each of the several historical periods; based on the difference between the predicted total power generation and each historical total power generation, determine the weight corresponding to the predicted power generation information and the weight corresponding to each of the several historical power generation information for the same period; calculate the effective power generation corresponding to the generator unit for each unit period according to the corresponding weight ratio; further optimize the predicted data through historical data to make the determined effective power generation information more accurate. Attached Figure Description
[0090] Figure 1 This is a flowchart illustrating a wind farm energy storage capacity configuration method in an embodiment of this application.
[0091] Figure 2 This is a schematic diagram of the structure of a wind farm energy storage capacity configuration device according to an embodiment of this application;
[0092] Figure 3 This is a schematic diagram of the structure of the electronic device in the embodiments of this application. Detailed Implementation
[0093] The following combination Figures 1-3 This application will be described in further detail.
[0094] After reading this specification, those skilled in the art may make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of this application.
[0095] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0096] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article, unless otherwise specified, generally indicates that the preceding and following related objects have an "or" relationship.
[0097] This application provides a method for configuring energy storage capacity in a wind farm, executed by an electronic device, as described above. Figure 1 The method includes steps S101-S106, wherein:
[0098] Step S101: Obtain the location information and construction capacity of the generator set. The construction capacity includes the number of generators of at least one type included in the generator set, and the location information includes the location of each generator in the generator set.
[0099] In this embodiment, the generator set is a power generation device for a wind farm. The location information and construction capacity of the generator set can be obtained from a database, which stores information such as the location, power, and model of each generator in the wind farm. Alternatively, the location information and construction capacity can be obtained through on-site surveys of the area where the generator set is located. The location information of the generator set includes the location of each generator in the generator set, and can also be determined by a positioning device installed on the generator. The construction capacity of the generator set includes the model of the generators contained in the generator set and the corresponding number of generators of each model. The construction capacity of the generator set is used to characterize the power generation capacity of the wind farm. Based on the size of the construction capacity, wind farms can be divided into small, medium, and large wind farms. Small wind farms have a power generation capacity of no more than 50 MW, medium wind farms have a power generation capacity of no more than 500 MW, and large wind farms have a power generation capacity exceeding 500 MW.
[0100] Step S102: Based on the location information and construction capacity of the generator set, determine the effective power generation information. The effective power generation information includes the effective power generation of the generator set in each unit cycle within a preset period. The preset period includes several unit cycles.
[0101] In this embodiment, based on the location information of the generator set, the region to which the generator set belongs is determined, and then the historical wind speed changes in the region are determined. This leads to the determination of the time periods with effective wind speeds and their corresponding wind speed magnitudes within each preset period in the generator set's history. A curve or table showing the correspondence between effective wind speed and time is generated for each preset period in the history. Effective wind speed refers to the wind speed sufficient to start the wind turbine until it is cut off due to excessive wind force. Within the effective wind speed range, the generator set can generate wind power. The effective wind speed range is 3 m / s to 25 m / s, and the unit period can be 1 hour, 2 hours, etc. The duration of the unit period is not specifically limited in this embodiment. The duration of the preset period is determined by the pattern of wind power generation, and the preset period can be a future year. For example, if the preset period is 6 months from April to September in the next year, and the historical data includes the wind speed changes of the generator set over the past 3 years, then the wind speed corresponding to each unit period in April to September of each of the past 3 years can be obtained, and then the effective wind speed and time correspondence curve or correspondence table in each preset period in history can be determined.
[0102] Furthermore, based on the historical effective wind speed versus time curves or tables, the effective wind speed in the area where the generator set is located is predicted within a preset period, determining the effective wind speed corresponding to each unit cycle within the preset period. Deep learning using convolutional neural networks can be employed to extract nonlinear features from historical wind speed data, thereby predicting the effective wind speed within the preset period. Alternatively, historical effective wind speed versus time data can be divided into quarterly units, wavelet analysis performed on a quarterly basis, and a linear regression prediction model for each component established using the least squares method. The prediction models for each component are then summed with preset weights to determine the prediction model for the preset period, and the effective wind speed within the preset period is predicted based on this model. Combining the number of generators for each generator type and the correspondence between the generator's power generation and wind speed, the effective power generation corresponding to each unit cycle of the generator set is determined, thus generating effective power generation information.
[0103] Step S103: Based on the effective power generation information, determine the basic energy storage capacity, which is the maximum amount of electricity that the generator set needs to store within a preset period.
[0104] In the embodiments of this application, the AC power generated by the generator set cannot be directly stored by the energy storage station. It can be stored after electromagnetic conversion, electrochemical conversion, or kinetic energy conversion. At the same time, the storage and release rate of the energy storage station is fixed. Therefore, the possible charging period and the possible discharging period of the energy storage station can be determined based on the effective power generation information. Then, based on the effective power generation information, the charging amount corresponding to each charging period and the discharging amount corresponding to each discharging period can be determined. Based on the chronological order of the times corresponding to each charging period and each discharging period, the remaining power corresponding to each unit cycle can be determined. The largest remaining power is determined as the basic energy storage power from the remaining power corresponding to all unit cycles.
[0105] Furthermore, the charging periods of the energy storage power station can include periods when the power generation of the generator set is greater than the unit cycle corresponding to a preset first power generation, and periods when the power consumption of the power consumption area corresponding to the generator set is less than the first preset power consumption. The discharging periods of the energy storage power station can include periods when the power generation of the generator set is less than the unit cycle corresponding to a preset second power generation, and periods when the power consumption of the power consumption area corresponding to the generator set is greater than the second preset power consumption.
[0106] Step S104: Obtain the energy storage method and construction address of the energy storage power station.
[0107] In the embodiments of this application, the energy storage methods of energy storage power stations can be classified into physical energy storage, electrochemical energy storage, and electromagnetic energy storage, etc., according to the type of energy storage technology. Different energy storage methods may correspond to different rated power and energy conversion ratios of the energy storage power station. Step S104 can be executed before step S101, after step S101, or simultaneously with step S101. Figure 1 It is an achievable approach.
[0108] Step S105: Determine the power loss based on the energy storage method and construction address of the energy storage power station and the location information of the generator set.
[0109] In this embodiment of the application, the power loss value of the generator set when transmitting power to the energy storage power station is determined based on the construction address of the energy storage power station and the location information of the generator set; the power loss of the energy storage power station when storing power is determined based on the energy storage method of the energy storage power station; and the power loss value during transmission and the power loss value during storage are summed to determine the power loss.
[0110] Step S106: Determine the energy storage capacity of the energy storage power station based on the power loss and the basic energy storage capacity.
[0111] In this embodiment of the application, the difference between the basic energy storage capacity and the energy loss capacity is determined as the energy storage capacity of the energy storage power station.
[0112] Based on the location and capacity of the generator sets, the effective power generation of each unit cycle within a preset period is determined. Then, based on the effective power generation information, the maximum amount of electricity that the generator sets need to store within the preset period is determined to reduce losses caused by wind farm curtailment. Based on the energy storage method and construction address of the energy storage station, as well as the location and capacity of the generator sets, the amount of electricity lost during storage and transmission within the preset period is determined. The difference between the amount of electricity that the generator sets need to store within the preset period and the amount of electricity lost is determined as the energy storage capacity of the energy storage station. Energy storage stations built according to this capacity can reduce construction costs while meeting the energy storage needs of wind farms.
[0113] Furthermore, based on the location information and construction capacity of the generator set, the effective power generation information is determined, including steps S1021 (not shown in the figure) to S1025 (not shown in the figure), wherein:
[0114] Step S1021: Obtain the setting location of the generator set;
[0115] Step S1022: Based on the location information and set orientation of the generator set, determine the effective wind speed information. The effective wind speed information includes the effective wind speed at which the generator set can generate wind power in each unit cycle within a preset period.
[0116] Specifically, based on the generator set's location information, meteorological data for the area where the generator set is located within a preset period is obtained. This meteorological data includes wind speed and direction data for the area where the generator set is located. Combined with the generator set's orientation, the actual wind speed corresponding to that orientation in each unit period is determined, thereby identifying the effective wind speed at which the generator set can generate wind power within the preset period. The effective wind speed refers to the actual wind speed sufficient to start the wind turbine until it is shut down due to excessive wind force. The effective wind speed range is 3 m / s to 25 m / s. Within this effective wind speed range, the wind turbine can generate wind power. The orientation is used to determine the direction of the generator blades within the generator set.
[0117] Step S1023: Based on the effective wind speed information and the construction capacity, determine the predicted power generation information, which includes the predicted power generation of the generator unit for each unit cycle within the preset period.
[0118] Specifically, for a given unit period, based on the effective wind speed corresponding to that unit period and the relationship between the generator output of each turbine type and the effective wind speed, the generator output of each turbine type within that unit period is determined. Combining the number of turbine types, the predicted generator output of the generator sets within the corresponding unit period is calculated, thereby determining the predicted generator output of the generator sets for each unit period within the preset period.
[0119] Step S1024: Obtain several historical power generation information for the same period. The historical power generation information includes the historical power generation of the generator unit in each unit cycle within the historical period. The historical period is the same as the time period of the preset period.
[0120] Specifically, if the generator unit generates wind power during a period that coincides with the preset cycle in history, and the corresponding power generation information is recorded in the historical database, then several historical power generation data points for the same period are retrieved from the historical database. The historical power generation information includes the power generation of the generator unit per unit cycle within the historical cycle. The historical cycle must correspond to the same time period as the preset cycle. For example, if the preset cycle is July to December of this year, then the historical cycle can be July to December of the previous year, but not April to September of the previous year.
[0121] Step S1025: Based on the predicted power generation information and several historical power generation information for the same period, determine the effective power generation information.
[0122] Specifically, for a unit cycle within a preset period and several historical periods, based on the predicted power generation within the preset period corresponding to that unit cycle, and the historical power generation within the several historical periods corresponding to that unit cycle, the power generation of the generator unit in that unit cycle can be determined by the average of the predicted power generation and the several historical power generation; alternatively, it can be calculated using a preset ratio to determine the power generation of the generator unit in that unit cycle. This process then generates the power generation of the generator unit for each unit cycle within the preset period.
[0123] Based on the location and orientation of the generator sets, the distribution of effective wind speeds in the area where the generator sets are located within a preset period is determined. Within the range corresponding to the effective wind speeds, the generator sets can generate wind power, thus determining more accurate effective wind speeds. Based on the effective wind speed information and the construction capacity of the generator sets, the predicted power generation corresponding to each unit cycle of the generator sets within the preset period is determined. By combining the historical power generation of the generator sets for each unit cycle within several historical periods of the same period, the predicted power generation is calibrated to determine the effective power generation corresponding to each unit cycle within the preset period, thereby improving the accuracy of the effective power generation information.
[0124] Furthermore, based on the predicted power generation information and several historical power generation data for the same period, effective power generation information is determined, including steps SA1 (not shown in the figure) to SA4 (not shown in the figure), wherein:
[0125] Step SA1: Based on the predicted power generation information, determine the predicted total power generation corresponding to the preset period.
[0126] Specifically, based on the predicted power generation information, the total power generation of the generator units within a preset period is calculated, i.e., the predicted total power generation.
[0127] Step SA2: Based on several historical power generation data for the same period, determine the total historical power generation corresponding to each of the several historical periods.
[0128] Specifically, for each historical period's power generation information, the historical power generation corresponding to each unit cycle is accumulated to determine the total power generation of the generating units within each historical cycle, i.e., the total historical power generation.
[0129] Step SA3: Based on the difference between the predicted total power generation and each historical total power generation, determine the weight corresponding to the predicted power generation information and the weight corresponding to each of the historical power generation information for the same period.
[0130] Specifically, for each historical total power generation, the difference between that historical total power generation and the predicted total power generation is calculated. The average of several calculated differences is taken to determine the average difference. Then, the ratio of the average difference to the predicted total power generation is calculated. Based on the interval to which the ratio of the average difference to the predicted total power generation falls, the weight corresponding to the predicted power generation information and the comprehensive weight corresponding to several historical power generation data for the same period are determined. For example, when the ratio of the average difference to the predicted total power generation is less than 10%, the weight of the predicted power generation information is 0.3, and the comprehensive weight corresponding to several historical power generation data for the same period is 0.7; when the ratio of the average difference to the predicted total power generation is greater than 10% and less than 20%, the weight of the predicted power generation information is 0.2, and the comprehensive weight corresponding to several historical power generation data for the same period is 0.8; when the ratio of the average difference to the predicted total power generation is greater than 20%, the weight of the predicted power generation information is 0.1, and the comprehensive weight corresponding to several historical power generation data for the same period is 0.9.
[0131] Furthermore, the corresponding historical weights can be determined based on the duration between the historical period and the preset period corresponding to each historical total power generation. The longer the duration between the historical period and the preset period, the smaller the historical weight. For example, for historical periods including January-December 2020, January-December 2021, and January-December 2022, with the preset period being January-December 2023, the historical weight corresponding to the historical period January-December 2020 is 0.2, the historical weight corresponding to the historical period January-December 2021 is 0.3, and the historical weight corresponding to the historical period January-December 2022 is 0.5. Based on the difference between each historical total power generation and the predicted total power generation, and the historical weight corresponding to each historical total power generation, a weight difference is determined. Then, the ratio of the weight difference to the predicted total power generation is calculated. Based on the interval to which the ratio of the weight difference to the predicted total power generation belongs, the weight of the predicted power generation information and the comprehensive weight corresponding to several historical power generation periods are determined.
[0132] Furthermore, the weight corresponding to each piece of historical power generation information can be evenly distributed based on data from historical periods to determine the weight of each piece of historical power generation information. For example, when the ratio of the weight difference to the predicted total power generation is less than 10%, the weight of the predicted power generation information is 0.3, and the total weight corresponding to several pieces of historical power generation information is 0.7; including historical power generation information from 2021 and 2022, the weights for the historical power generation information from 2021 and 2022 are each determined to be 0.35. Alternatively, the weight corresponding to each piece of historical power generation information can be determined based on the length of time between each historical period and a preset period. For example, when the ratio of the weight difference to the predicted total power generation is less than 10%, the weight of the predicted power generation information is 0.3, and the total weight corresponding to several historical power generation information for the same period is 0.7; including the historical power generation information for the same period in 2021 and 2022, the weight corresponding to the historical power generation information for the same period in 2021 is determined to be 0.3, and the weight corresponding to the historical power generation information for the same period in 2022 is 0.4.
[0133] Step SA4: Determine the effective power generation information based on the weights corresponding to the predicted power generation information and the weights corresponding to several historical power generation information for the same period.
[0134] Specifically, for each unit period, the predicted power generation within a preset period and the historical power generation for several historical periods are determined. Combining the weights corresponding to the predicted power generation information and the weights corresponding to the power generation information for several historical periods, the effective power generation for that unit period is calculated, thereby determining the effective power generation for each unit period within the preset period. The formula for calculating the effective power generation per unit period can be expressed as: Where P is the effective power generation per unit period, H0 is the predicted power generation per unit period in the predicted power generation information, W0 is the weight corresponding to the predicted power generation information, and H i W represents the historical power generation for that unit period in the i-th historical power generation information. i is the weight corresponding to the power generation information of the i-th historical period, and n is the number of historical periods.
[0135] Based on the predicted power generation information, the predicted total power generation for the preset period is determined; based on the power generation information of several historical periods, the historical total power generation for each of the several historical periods is determined; based on the difference between the predicted total power generation and each historical total power generation, the weights corresponding to the predicted power generation information and the weights corresponding to the power generation information of several historical periods are determined; based on the corresponding weight ratios, the effective power generation of the generating unit for each unit in each period is calculated; and the predicted data is further optimized using historical data to make the determined effective power generation information more accurate.
[0136] Furthermore, based on the effective power generation information, the basic energy storage capacity is determined, including steps S1031 (not shown in the figure) - S1032 (not shown in the figure), wherein:
[0137] Step S1031: Obtain the energy storage cycle of the energy storage power station. The energy storage cycle is the charging and discharging cycle of the energy storage power station.
[0138] Specifically, the energy storage cycle for charging and discharging the energy storage power station is obtained. The energy storage cycle can be 1 day, 1 month, or 1 quarter, etc. The duration of the energy storage cycle is determined based on the power generation of the generator set, the power consumption of the corresponding electricity consumption area, and the type of energy storage power station. The energy storage power station reaches its maximum capacity for storing electricity within the energy storage cycle.
[0139] Step S1032: Determine the basic energy storage capacity based on the energy storage cycle and effective power generation information.
[0140] Specifically, time periods are divided based on the effective power generation information corresponding to the energy storage cycle, and the effective power generation information corresponding to each of the multiple energy storage cycles is determined. For any energy storage cycle, based on the effective power generation corresponding to each unit cycle within that energy storage cycle, the charging and discharging state of the energy storage station in each unit cycle is determined, thereby determining the charging and discharging amount corresponding to each unit cycle. The remaining power of the energy storage station in each unit cycle is statistically analyzed, and the maximum value of the remaining power is determined as the expected energy storage power corresponding to that energy storage cycle. Therefore, the average of all expected energy storage powers can be determined as the base energy storage power, or the expected energy storage power with the largest value among all expected energy storage powers can be determined as the base energy storage power.
[0141] For example, each energy storage cycle consists of 6 unit cycles, and the charge and discharge quantities corresponding to each unit cycle are 5, 7, -2, -7, 0, and -3, respectively, where positive numbers represent the charging state and negative numbers represent the discharging state; then the remaining energy corresponding to each unit cycle is 5, 12, 10, 3, 3, and 0, respectively, and the expected energy storage capacity corresponding to this energy storage cycle is 11.
[0142] The energy storage cycle of the energy storage power station is obtained. The energy storage cycle is used to characterize the charging and discharging pattern of the energy storage power station, that is, the energy storage power station completes at least one charging and at least one discharging within one energy storage cycle. The effective power generation information is divided according to the energy storage cycle to determine the expected storage capacity of the energy storage power station in each energy storage cycle. Then, the basic energy storage capacity is determined based on multiple expected storage capacities, so that the determined basic energy storage capacity is more accurate.
[0143] Furthermore, based on the energy storage method and construction address of the energy storage power station and the location information of the generator set, the power loss is determined, including steps S1051 (not shown in the figure) - S1054 (not shown in the figure), wherein:
[0144] Step S1051: Obtain the power transmission method between the energy storage power station and the generator set;
[0145] Step S1052: Based on the construction address of the energy storage power station, the location information of the generator set, and the transmission method, determine the transmission loss power.
[0146] Specifically, based on the power transmission method used between the energy storage power station and the generator set, the corresponding energy loss rate is determined. Based on the construction address of the energy storage power station and the location information of the generator set, the distance between them is determined. Based on the distance between the energy storage power station and the generator set, and the energy loss rate corresponding to the energy storage method, the amount of electricity lost during power transmission between the generator set and the energy storage power station within a preset period is determined; this is the transmission loss.
[0147] Step S1053: Determine the stored power loss based on the energy storage method of the energy storage power station.
[0148] Specifically, when the electrical energy of the generator set is transmitted to the energy storage station for storage, a certain loss will occur during the energy conversion. Based on the energy storage method of the energy storage station, the loss ratio corresponding to the energy storage method is determined, and then the amount of electricity lost when the electricity enters the energy storage station for storage within a preset period is determined, that is, the storage loss electricity.
[0149] Step S1054: Determine the power loss based on the power loss during transmission and storage.
[0150] Specifically, the sum of power loss during transmission and power loss during storage is calculated as the power loss.
[0151] Based on the construction address of the energy storage power station and the location information of the generator set, the distance between the energy storage power station and the generator set is determined. Based on the transmission method and distance between the energy storage power station and the generator set, the transmission loss during power transmission is determined. Based on the energy storage method of the energy storage power station, the power consumed by the energy storage power station during power conversion or storage, and the storage loss are determined. The sum of the transmission loss and the storage loss is then determined as the total power loss. This allows for a more accurate determination of the power that the generator-generated electricity may lose before entering the energy storage power station, thereby reducing the construction cost of the energy storage power station.
[0152] Furthermore, selecting an appropriate depth of discharge can improve the service life of the energy storage power station. Therefore, a wind farm energy storage capacity configuration method further includes steps S201 (not shown in the figure) - S202 (not shown in the figure), wherein:
[0153] Step S201: Determine the target discharge depth based on the energy storage method of the energy storage power station;
[0154] Step S202: Determine the target energy storage capacity of the energy storage power station based on the target discharge depth and the energy storage capacity of the energy storage power station.
[0155] In this embodiment of the application, based on the energy storage method of the energy storage power station, the corresponding curves of charge / discharge cycles, capacity, and discharge depth for that energy storage method are obtained from the database to determine the target discharge depth. Charging and discharging at the target discharge depth yields a better service life. Based on the target discharge depth and the energy storage capacity of the energy storage power station, the target energy storage capacity is determined, where target energy storage capacity = energy storage capacity / target discharge depth.
[0156] Based on the energy storage method of the energy storage power station, the target discharge depth of the energy storage power station is determined. Charging and discharging at the target discharge depth can extend the service life of the energy storage power station. Based on the energy storage capacity of the energy storage power station and the target discharge depth, the target energy storage capacity of the energy storage power station is determined. By extending the service life of the energy storage power station, the operating cost of the energy storage power station is reduced.
[0157] Furthermore, the actual electricity consumed within the power consumption area corresponding to the wind farm is affected by the power curtailment requirements of the corresponding power consumption area. Therefore, a method for configuring energy storage capacity in a wind farm further includes steps S203 (not shown in the figure) - S204 (not shown in the figure), wherein:
[0158] Step S203: Obtain the power curtailment information and power consumption patterns of the power consumption area corresponding to the wind farm. The power curtailment information includes the amount of power curtailed for each power curtailment period in the power consumption area within a preset period. The power consumption patterns are the amount of electricity provided by the wind farm used by the power consumption area in each unit cycle within the preset period.
[0159] Step S204: Based on power curtailment information, electricity consumption patterns, and the target energy storage capacity of the energy storage power station, determine the optimal energy storage capacity of the energy storage power station.
[0160] In this embodiment of the application, based on the power rationing amount corresponding to each power curtailment period in the power consumption area within a preset period and the power provided by the wind farm in each unit cycle within the preset period, the actual power consumption distribution information corresponding to the power consumption area within the preset period is determined. The actual power consumption distribution information includes the actual power consumption of the power consumption area in each unit cycle within the preset period. Then, the actual power consumption distribution information of the power consumption area is analyzed to determine the power consumption of the power consumption area during peak hours. Combined with the target energy storage capacity of the energy storage power station, the optimized energy storage capacity of the energy storage power station is determined. The optimized energy storage capacity can meet the power requirements of the power consumption area during peak hours, and the energy storage power station can achieve the target depth of discharge during charging and discharging.
[0161] Based on the power curtailment amount for each power curtailment period in a preset cycle and the power consumption of the area by the wind farm in each unit cycle within the preset cycle, the actual power consumption of the area in each unit cycle within the preset cycle is determined. Then, the target energy storage capacity is optimized based on the actual power consumption of the area in each unit cycle within the preset cycle, determining the optimized energy storage capacity. The energy storage power station constructed based on the optimized capacity can meet the power demand of the area, and the energy storage power station can operate at a relatively optimal depth of discharge. The above embodiments describe a method for configuring wind farm energy storage capacity from a process flow perspective. The following embodiments describe a device for configuring wind farm energy storage capacity from the perspective of virtual modules or virtual units, as detailed in the following embodiments.
[0162] This application provides an embodiment of a device for configuring energy storage capacity in a wind farm, such as... Figure 2 As shown, the device for configuring the energy storage capacity of this wind farm may specifically include a generator set information acquisition module 201, an effective power generation information determination module 202, a basic energy storage capacity determination module 203, an energy storage power station information acquisition module 204, a power loss determination module 205, and an energy storage capacity determination module 206, wherein:
[0163] The generator set information acquisition module 201 is used to acquire the location information and construction capacity of the generator set. The construction capacity includes the number of generators of at least one type included in the generator set, and the location information includes the location of each generator in the generator set. The effective power generation information determination module 202 is used to determine the effective power generation information based on the location information and construction capacity of the generator set. The effective power generation information includes the effective power generation of the generator set in each unit cycle within a preset period, and the preset period includes several unit cycles.
[0164] The basic energy storage capacity determination module 203 is used to determine the basic energy storage capacity based on the effective power generation information. The basic energy storage capacity is the maximum amount of electricity that the generator set needs to store within a preset period.
[0165] The energy storage power station information acquisition module 204 is used to acquire the energy storage method and construction address of the energy storage power station;
[0166] The power loss determination module 205 is used to determine the power loss based on the energy storage method and construction address of the energy storage power station and the location information of the generator set.
[0167] The energy storage capacity determination module 206 is used to determine the energy storage capacity of the energy storage power station based on the power loss and the basic energy storage capacity.
[0168] By adopting the above technical solution, based on the location information and construction capacity of the generator set, the effective power generation corresponding to each unit cycle within a preset period is determined. Then, based on the effective power generation information, the maximum amount of electricity that the generator set needs to store within the preset period is determined to reduce losses caused by wind farm curtailment. Based on the energy storage method and construction address of the energy storage station, as well as the location information and construction capacity of the generator set, the amount of electricity lost during the storage and transmission process within the preset period is determined. The difference between the amount of electricity that the generator set needs to store within the preset period and the amount of electricity lost is determined as the energy storage capacity of the energy storage station. Energy storage stations built according to this capacity can reduce construction costs while meeting the energy storage needs of wind farms.
[0169] In one possible implementation, when determining effective power generation information based on the location information and construction capacity of the generator set, the effective power generation information determination module 202 is specifically used for:
[0170] Obtain the location of the generator set;
[0171] Based on the location information and setting orientation of the generator set, the effective wind speed information is determined. The effective wind speed information includes the effective wind speed at which the generator set can generate wind power in each unit cycle within the preset period.
[0172] Based on effective wind speed information and construction capacity, the predicted power generation information is determined. The predicted power generation information includes the predicted power generation of the generator unit for each unit cycle within a preset period.
[0173] Acquire several historical power generation data points for the same period. The historical power generation data includes the historical power generation of the generator unit for each unit cycle within the historical period. The historical period is the same as the time period of the preset period.
[0174] Based on the predicted power generation information and several historical power generation data for the same period, the effective power generation information is determined.
[0175] In one possible implementation, when determining effective power generation information based on predicted power generation information and several historical power generation data from the same period, the effective power generation information determination module 202 is specifically used for:
[0176] Based on the predicted power generation information, determine the predicted total power generation corresponding to the preset period;
[0177] Based on several historical power generation data for the same period, determine the historical total power generation corresponding to each of several historical periods.
[0178] Based on the difference between the predicted total power generation and each historical total power generation, the weights corresponding to the predicted power generation information and the weights corresponding to several historical power generation information for the same period are determined.
[0179] The effective power generation information is determined based on the weights corresponding to the predicted power generation information and the weights corresponding to several historical power generation information from the same period.
[0180] In one possible implementation, when determining the basic energy storage capacity based on effective power generation information, the basic energy storage capacity determination module 203 is specifically used for:
[0181] Obtain the energy storage cycle of the energy storage power station, which is the cycle of charging and discharging of the energy storage power station;
[0182] Based on the energy storage cycle and effective power generation information, the basic energy storage capacity is determined.
[0183] In one possible implementation, when determining power loss based on the energy storage method and construction address of the energy storage power station and the location information of the generator set, the power loss determination module 205 is specifically used for:
[0184] To obtain the transmission method for power transfer between the energy storage power station and the generator set;
[0185] Based on the construction address of the energy storage power station, the location information of the generator set, and the transmission method, the power loss during transmission is determined;
[0186] Based on the energy storage method of the energy storage power station, determine the stored power loss;
[0187] The power loss is determined based on the power loss during transmission and storage.
[0188] In one possible implementation, a wind farm energy storage capacity configuration device further includes:
[0189] The target discharge depth determination module is used to determine the target discharge depth based on the energy storage method of the energy storage power station.
[0190] The target energy storage capacity determination module is used to determine the target energy storage capacity of the energy storage power station based on the target discharge depth and the energy storage capacity of the energy storage power station.
[0191] In one possible implementation, a wind farm energy storage capacity configuration device further includes:
[0192] The electricity consumption area information acquisition module is used to acquire the power curtailment information and electricity consumption patterns of the electricity consumption area corresponding to the wind farm. The power curtailment information includes the amount of electricity curtailed for each power curtailment period in the electricity consumption area within a preset period, and the electricity consumption pattern is the amount of electricity provided by the wind farm used by the electricity consumption area in each unit cycle within the preset period.
[0193] The optimized energy storage capacity determination module determines the optimal energy storage capacity of the energy storage power station based on power curtailment information, electricity consumption patterns, and the target energy storage capacity of the energy storage power station.
[0194] This application provides an electronic device, such as... Figure 3 As shown, Figure 3 The illustrated electronic device 300 includes a processor 301 and a memory 303. The processor 301 and the memory 303 are connected, for example, via a bus 302. Optionally, the electronic device 300 may also include a transceiver 304. It should be noted that in practical applications, the transceiver 304 is not limited to one type, and the structure of this electronic device 300 does not constitute a limitation on the embodiments of this application.
[0195] Processor 301 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 301 may also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.
[0196] Bus 302 may include a pathway for transmitting information between the aforementioned components. Bus 302 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Bus 302 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 3 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.
[0197] The memory 303 may be a ROM (Read Only Memory) or other type of static storage device capable of storing static information and instructions, RAM (Random Access Memory) or other type of dynamic storage device capable of storing information and instructions, or an EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto.
[0198] The memory 303 is used to store application code that executes the solution of this application, and its execution is controlled by the processor 301. The processor 301 is used to execute the application code stored in the memory 303 to implement the content shown in the foregoing method embodiments.
[0199] Electronic devices include, but are not limited to: mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), and in-vehicle terminals (such as in-vehicle navigation terminals), as well as fixed terminals such as digital TVs and desktop computers. Servers can also be included. Figure 3 The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.
[0200] This application provides a computer-readable storage medium storing a computer program that, when run on a computer, enables the computer to execute the corresponding content in the aforementioned method embodiments.
[0201] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by 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 accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.
[0202] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A method for configuring energy storage capacity in a wind farm, characterized in that, include: The location information and construction capacity of the generator set are obtained. The construction capacity includes the number of generators of at least one type included in the generator set. The location information includes the location of each generator in the generator set. Based on the location information and construction capacity of the generator set, the effective power generation information is determined. The effective power generation information includes the effective power generation of the generator set in each unit cycle within a preset period, and the preset period includes several unit cycles. Based on the effective power generation information, the basic energy storage capacity is determined, which is the maximum amount of electricity that the generator set needs to store within a preset period. Obtain the energy storage method and construction location of the energy storage power station; Based on the energy storage method and construction address of the energy storage power station and the location information of the generator set, the power loss is determined; The energy storage capacity of the energy storage power station is determined based on the power loss and the basic energy storage capacity. The step of determining effective power generation information based on the location information and construction capacity of the generator set includes: obtaining the installation location of the generator set; Based on the location information and orientation of the generator set, the effective wind speed information is determined. The effective wind speed information includes the effective wind speed at which the generator set can generate wind power in each unit cycle within a preset period. Based on the effective wind speed information and the construction capacity, the predicted power generation information is determined, which includes the predicted power generation of the generator unit for each unit cycle within a preset period. Acquire several historical power generation data for the same period, wherein the historical power generation data includes the historical power generation of the generator unit for each unit cycle within the historical period, and the historical period is the same as the time period of the preset period; Based on the predicted power generation information and the power generation information of several historical same-period data, the effective power generation information is determined. The step of determining effective power generation information based on the predicted power generation information and the several historical power generation information for the same period includes: determining the predicted total power generation corresponding to a preset period based on the predicted power generation information. Based on the aforementioned historical power generation information for the same period, the total historical power generation corresponding to each of the several historical periods is determined. Based on the difference between the predicted total power generation and each of the historical total power generation, the weights corresponding to the predicted power generation information and the weights corresponding to the several historical power generation information for the same period are determined. Based on the weights corresponding to the predicted power generation information and the weights corresponding to the several historical power generation information for the same period, the effective power generation information is determined.
2. The wind farm energy storage capacity configuration method according to claim 1, characterized in that, The step of determining the basic energy storage capacity based on the effective power generation information includes: obtaining the energy storage cycle of the energy storage power station, wherein the energy storage cycle is the cycle of charging and discharging of the energy storage power station; Based on the energy storage cycle and the effective power generation information, the basic energy storage capacity is determined.
3. The wind farm energy storage capacity configuration method according to claim 1, characterized in that, The determination of power loss based on the energy storage method and construction address of the energy storage power station and the location information of the generator set includes: obtaining the power transmission method between the energy storage power station and the generator set; Based on the construction address of the energy storage power station, the location information of the generator set, and the transmission method, the power loss during transmission is determined; Based on the energy storage method of the energy storage power station, the stored power loss is determined; The power loss is determined based on the power loss during transmission and the power loss during storage.
4. The wind farm energy storage capacity configuration method according to claim 1, characterized in that, Also includes: Based on the energy storage method of the energy storage power station, the target discharge depth is determined; The target energy storage capacity of the energy storage power station is determined based on the target discharge depth and the energy storage capacity of the energy storage power station.
5. The wind farm energy storage capacity configuration method according to claim 4, characterized in that, Also includes: Obtain power curtailment information and power consumption patterns for the power consumption area corresponding to the wind farm. The power curtailment information includes the amount of power curtailed for each power curtailment period in the power consumption area within a preset period. The power consumption patterns include the amount of electricity provided by the wind farm used by the power consumption area in each unit cycle within the preset period. Based on the power rationing information, the power consumption patterns, and the target energy storage capacity of the energy storage power station, the optimal energy storage capacity of the energy storage power station is determined.
6. A wind farm energy storage capacity configuration device, characterized in that, The wind farm energy storage capacity configuration method applied to any one of claims 1-5 includes: a generator set information acquisition module, used to acquire the location information and construction capacity of the generator set, wherein the construction capacity includes the number of generators of at least one type included in the generator set, and the location information includes the location of each generator in the generator set; The effective power generation information determination module is used to determine the effective power generation information based on the location information and construction capacity of the generator set. The effective power generation information includes the effective power generation of the generator set in each unit cycle within a preset period, and the preset period includes several unit cycles. The basic energy storage capacity determination module is used to determine the basic energy storage capacity based on the effective power generation information. The basic energy storage capacity is the maximum amount of electricity that the generator set needs to store within a preset period. The energy storage power station information acquisition module is used to acquire the energy storage method and construction address of the energy storage power station; The power loss determination module is used to determine the power loss based on the energy storage method and construction address of the energy storage power station and the location information of the generator set; An energy storage capacity determination module is used to determine the energy storage capacity of the energy storage power station based on the power loss and the basic energy storage capacity.
7. An electronic device, characterized in that, The electronic device includes: at least one processor; Memory; At least one application, wherein the at least one application is stored in memory and configured to be executed by at least one processor, the at least one application being configured to: perform the wind farm energy storage capacity configuration method according to any one of claims 1-5.
8. A computer-readable medium, characterized in that, include: The system stores a computer program that can be loaded by a processor and executed as described in any one of claims 1-5 for configuring the energy storage capacity of a wind farm.