Frequency support method and device for new energy station, terminal equipment and storage medium

Abstract

The invention discloses a frequency support method and device for a new energy station, terminal equipment and a storage medium. The frequency support method comprises the following steps: acquiring the frequency of a power grid accessed to the new energy station, the output power of each power generation equipment in the new energy station, and the stored electric quantity of energy storage equipment in the new energy station; determining the frequency offset of the power grid according to the frequency; when the frequency offset is greater than a preset threshold value, determining a response power range of each power generation device for frequency support according to the output power; generating a target frequency support scheme according to the frequency offset, the response power range and the stored electric quantity; and scheduling the power generation equipment and the energy storage equipment according to the frequency support scheme so as to carry out frequency support on the power grid. Therefore, by scheduling the power generation devices to participate in scheduling of power grid frequency support, the power grid frequency support capability of the new energy station is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid frequency regulation, and particularly to a frequency support method, device, terminal device and storage medium for a new energy power station. Background Art

[0002] With the rapid development of new energy power stations globally, their role in the power system is becoming increasingly important. Due to the significant differences in the operation modes between new energy power stations and traditional power plants, compared with traditional synchronous generators, new energy power stations, such as wind farms, show no inertia or weak inertia to the power grid dynamics because wind turbines are connected to the grid through power electronic devices and basically do not respond to the changes in the power grid. When there is a power imbalance in the system, it is easy to cause a large rate of frequency change and frequency offset, which is not conducive to the stable operation of the power grid. Therefore, currently, new energy power stations are required to have a certain frequency support ability.

[0003] In recent years, relevant research institutions have successively carried out research and development work on the participation of new energy power stations in power system frequency / active power control. These studies mainly focus on the level of new energy generating units, hoping to fully utilize the control performance of a single unit. The single-unit response control method mainly refers to adjusting the output power of a single generating unit (or new energy power generation unit, such as a wind turbine, a photovoltaic generator, etc.) in the power system to support the stability of the system frequency. Therefore, the single-unit response control method has limited frequency support ability for the power grid and is difficult to meet the active frequency support requirements of a high-proportion new energy power grid. Summary of the Invention

[0004] Embodiments of the present invention provide a frequency support method, device, terminal device and storage medium for a new energy power station, which effectively improve the frequency support ability of the new energy power station for the power grid by scheduling a number of power generation devices to participate in the scheduling of power grid frequency support.

[0005] An embodiment of the present invention provides a frequency support method for a new energy power station, including:

[0006] Obtaining the frequency of the power grid accessed by the new energy power station, the output power of each power generation device in the new energy power station, and the stored power of the energy storage device in the new energy power station;

[0007] Determining the frequency offset of the power grid according to the frequency;

[0008] When the frequency offset is greater than a preset threshold, determining the response power range of each power generation device for frequency support according to the output power;

[0009] Generating a target frequency support plan according to the frequency offset, the response power range, and the stored power;

[0010] According to the frequency support scheme, schedule the power generation equipment and the energy storage equipment to support the frequency of the power grid.

[0011] Further, determining the response power range of each power generation equipment for frequency support according to the output power includes:

[0012] Obtain the weather factors related to each power generation equipment;

[0013] Evaluate the maximum output power and the minimum output power of each power generation equipment according to the weather factors;

[0014] Calculate the response power range of each power generation equipment for frequency support according to the output power, the maximum output power, and the minimum output power.

[0015] Further, calculating the response power range of each power generation equipment for frequency support according to the output power, the maximum output power, and the minimum output power includes:

[0016] Take the difference between the minimum output power and the output power as the minimum value in the response power range;

[0017] Take the difference between the maximum output power and the output power as the maximum value in the response power range.

[0018] Further, before generating a target frequency support scheme according to the frequency offset, the response power range, and the stored power, it further includes:

[0019] Obtain the target response power range of the preset target power generation equipment;

[0020] Judge whether the target power generation equipment can support the frequency of the power grid according to the target response power range and the frequency offset;

[0021] If so, generate the target frequency support scheme according to the target response power range and the frequency offset;

[0022] If not, generate a target frequency support scheme according to the frequency offset, the response power range, and the stored power.

[0023] Further, generating a target frequency support scheme according to the frequency offset, the response power range, and the stored power includes:

[0024] Randomly generate several sets of frequency modulation response equipment sets; wherein, the frequency modulation response equipment set is composed of several randomly selected power generation equipment and energy storage equipment;

[0025] Generate a frequency support plan for each set of frequency modulation response device sets according to the frequency offset, the response power range, and the stored power

[0026] Calculate the frequency response time of each set of frequency modulation response device sets according to the frequency support plan

[0027] Take the frequency support plan of the target frequency modulation response device set corresponding to the minimum frequency response time as the target frequency support plan

[0028] Further, the generating a frequency support plan for each set of frequency modulation response device sets according to the frequency offset, the response power range, and the stored power includes:

[0029] Determine the first initial response adjustment power of each power generation device in the frequency modulation response device set within the response power range

[0030] Determine the second initial response adjustment power of the energy storage device according to the stored power

[0031] Determine the initial response frequency adjustment amount of the corresponding frequency modulation response device set according to the first initial response adjustment power and the second initial response adjustment power

[0032] Taking the response power range and the stored power as constraints, optimize the first initial response output power of the power generation device and the second initial response output power of the energy storage device in each set of frequency modulation response device sets according to the initial response frequency adjustment amount, and generate a frequency support plan for each set of frequency modulation response device sets when the gap between the response frequency adjustment amount of the new energy power station and the frequency offset is the smallest

[0033] Another embodiment of the present invention provides a frequency support device for a new energy power station, including:

[0034] A data acquisition module for acquiring the frequency of the power grid accessed by the new energy power station, the output power of each power generation device in the new energy power station, and the stored power of the energy storage device in the new energy power station

[0035] Determine the frequency offset of the power grid according to the frequency

[0036] A range determination module for determining the response power range for frequency support of each power generation device according to the output power when the frequency offset is greater than a preset threshold

[0037] A scheme generation module for generating a target frequency support scheme according to the frequency offset, the response power range, and the stored power

[0038] A frequency support module, configured to schedule the power generation equipment and the energy storage equipment according to the frequency support scheme, so as to support the frequency of the power grid.

[0039] Further, the range determination module determines the response power range of each power generation device for frequency support according to the output power, including:

[0040] Obtain the weather factors related to each power generation device;

[0041] Evaluate the maximum output power and the minimum output power of each power generation device according to the weather factors;

[0042] Calculate the response power range of each power generation device for frequency support according to the output power, the maximum output power, and the minimum output power.

[0043] Another embodiment of the present invention provides a terminal device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements a frequency support method for a new energy power station as described in any one of the above embodiments.

[0044] Another embodiment of the present invention provides a storage medium, which includes a stored computer program. When the computer program runs, it controls the device where the storage medium is located to execute a frequency support method for a new energy power station as described in any one of the above embodiments.

[0045] By implementing the present invention, the following beneficial effects are achieved:

[0046] The present invention discloses a frequency support method, device, terminal device, and storage medium for a new energy power station. The method monitors the frequency of the power grid and determines the frequency offset of the power grid. When the frequency offset is greater than a preset threshold, according to the output power of each power generation device in the new energy power station, the response power range of each power generation device for frequency support is determined; a target frequency support scheme is generated according to the frequency offset, the response power range, and the stored power; according to the frequency support scheme, the power generation equipment and the energy storage equipment are scheduled to support the frequency of the power grid. Therefore, when it is confirmed that the power grid needs to perform frequency support, the present invention evaluates the response power range that several power generation devices in the new energy power station can use for frequency support, and then generates a frequency support scheme for scheduling the processing of each power generation device. By involving multiple power generation devices in the scheduling of power grid frequency support, the frequency support ability of the new energy power station for the power grid is effectively improved. Description of the Drawings

[0047] Figure 1It is a schematic flow chart of a frequency support method for a new energy power station provided by an embodiment of the present invention.

[0048] Figure 2 It is a schematic structural diagram of a frequency support device for a new energy power station provided by an embodiment of the present invention. Detailed implementation manners

[0049] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without making creative efforts shall fall within the scope of protection of the present application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0051] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0052] Referring to "embodiments" herein means that specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0053] In the description of the embodiments of the present application, the term " / and / " is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally represents an "or" relationship between the associated objects before and after.

[0054] In the description of the embodiments of the present application, the term "multiple" refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0055] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0056] See Figure 1 , which is a schematic flow chart of a frequency support method for a new energy power station provided by an embodiment of the present invention, including:

[0057] S1. Obtain the frequency of the power grid accessed by the new energy power station, the output power of each power generation device in the new energy power station, and the stored power of the energy storage device in the new energy power station;

[0058] In a preferred embodiment of the present invention, the new energy power station includes a wind power station, a photovoltaic power station, and a wind-solar hybrid power station. It can be understood that several power generation devices and additional energy storage devices are generally installed in the new energy power station. Since the new energy generator sets are connected to the grid through power electronic devices and show no inertia or weak inertia to the power grid dynamics and basically do not respond to the changes of the power grid, in this embodiment, the power grid frequency is monitored in real time so that when the power grid frequency fluctuates, the new energy generator sets can be called in time for frequency support.

[0059] S2. Determine the frequency offset of the power grid according to the frequency;

[0060] In a preferred embodiment of the present invention, obtain the standard frequency of the area where the new energy power station is located, generally 50Hz or 60Hz, compare the standard frequency with the frequency monitored in real time by the power grid, and calculate the frequency offset.

[0061] Furthermore, in this embodiment, the working frequencies of each power generation device in the new energy power station are also recorded. By processing the working frequencies within a period of time, the steady-state frequencies of each power generation device are integrated and generated. When it is determined that the difference between the steady-state frequency of a certain power generation device and the standard frequency is greater than the preset difference threshold, it is determined that the power generation device is working abnormally, and an alarm message is generated for the power generation device with abnormal work.

[0062] S3. When the frequency offset is greater than a preset threshold, determine the response power range for each power generation device to support frequency according to the output power;

[0063] Preferably, the determining the response power range for each power generation device to support frequency according to the output power includes:

[0064] S31. Obtain the weather factors related to each power generation device;

[0065] S32. Evaluate the maximum output power and the minimum output power of each power generation device according to the weather factors;

[0066] S33. Calculate the response power range for each power generation device to support frequency according to the output power, the maximum output power, and the minimum output power.

[0067] In a preferred embodiment of the present invention, since the output power of each power generation device in a new energy power generation station is affected by weather factors. For example, a wind turbine is affected by various factors such as wind speed and wind direction, while a photovoltaic cell is affected by factors such as light intensity and temperature. By according to the current weather factors, the maximum output power and the minimum output power that each power generation device can output at present can be predicted.

[0068] Preferably, the calculating the response power range for each power generation device to support frequency according to the output power, the maximum output power, and the minimum output power includes:

[0069] S331. Take the difference between the minimum output power and the output power as the minimum value in the response power range;

[0070] S332. Take the difference between the maximum output power and the output power as the maximum value in the response power range.

[0071] In a preferred embodiment of the present invention, for example, the output power of a certain power generation device is 20 kw, and the calculated maximum output power is 26 kw and the minimum output power is 15 kw. Then the minimum value of the response power range of this power generation device is -5 kw, and the maximum value is 6 kw, which means that the output power of this power generation device can be reduced by at most 5 kw and increased by 6 kw.

[0072] S4. Generate a target frequency support scheme according to the frequency offset, the response power range, and the stored power;

[0073] Preferably, before generating a target frequency support scheme according to the frequency offset, the response power range, and the stored power, it further includes:

[0074] S41. Obtain the target response power range of the preset target power generation device;

[0075] S42. Determine whether the target power generation device can achieve frequency support for the power grid according to the target response power range and the frequency offset;

[0076] S43. If so, generate the target frequency support scheme according to the target response power range and the frequency offset;

[0077] In a preferred embodiment of the present invention, a target power generation device is provided in a new energy power station for single - machine response to the frequency support of the power grid. If the output power required to achieve power grid frequency support is within the target response power range of the target power generation device, the output of the target power generation device is directly adjusted to improve the response efficiency of frequency support.

[0078] S44. If not, generate a target frequency support scheme according to the frequency offset, the response power range, and the stored power.

[0079] In a preferred embodiment of the present invention, when the frequency offset of the power grid is large and the power grid frequency support cannot be achieved only by relying on the target power generation device, several power generation devices in the new energy power station are considered to participate in the frequency support scheduling to meet the power grid frequency support requirements.

[0080] Preferably, generating a target frequency support scheme according to the frequency offset, the response power range, and the stored power includes:

[0081] S441. Randomly generate several sets of frequency - modulation response device sets; wherein, the frequency - modulation response device set is composed of several randomly selected power generation devices and the energy storage device;

[0082] S442. Generate the frequency support scheme for each set of frequency - modulation response device sets according to the frequency offset, the response power range, and the stored power;

[0083] Preferably, generating the frequency support scheme for each set of frequency - modulation response device sets according to the frequency offset, the response power range, and the stored power includes:

[0084] S4421. Determine the first initial response adjustment power of each power generation device in the frequency - modulation response device set within the response power range;

[0085] S4422. Determine the second initial response adjustment power of the energy storage device according to the stored power;

[0086] S4423. Determine the initial response frequency adjustment amount of the corresponding frequency modulation response equipment set according to the power adjustment based on the first initial response and the power adjustment based on the second initial response;

[0087] S4424. With the response power range and the stored power as constraints, optimize the first initial response output power of the power generation equipment and the second initial response output power of the energy storage equipment in each group of frequency modulation response equipment sets according to the initial response frequency adjustment amount. When the gap between the response frequency adjustment amount of the new energy power station and the frequency offset amount is the smallest, generate the frequency support plan for each group of frequency modulation response equipment sets.

[0088] In a preferred embodiment of the present invention, the gap between the frequency offset amount and the response frequency adjustment amount is evaluated by the following formula:

[0089] Δ = G(p - 50) + g(x);

[0090] where Δ represents the sum of the frequency offset amount and the response frequency adjustment amount, G(p - p 0 ) represents the frequency offset amount, p represents the frequency of the power grid, p 0 represents the standard frequency, and g(x) represents the response frequency adjustment amount, and its value can be negative. When Δ ≈ 0, it is determined that the gap between the response frequency adjustment amount of the new energy power station and the frequency offset amount is the smallest.

[0091] S443. Calculate the frequency response time of each group of frequency modulation response equipment sets according to the frequency support plan;

[0092] S444. Take the frequency support plan of the target frequency modulation response equipment set corresponding to the smallest frequency response time as the target frequency support plan.

[0093] In a preferred embodiment of the present invention, delete the frequency modulation response equipment sets that cannot generate a frequency support plan, calculate the required scheduling time of each power generation equipment and the required scheduling time of the energy storage equipment in each group of frequency modulation response equipment sets that can generate a frequency support plan, and calculate the frequency response time.

[0094] S5. Schedule the power generation equipment and the energy storage equipment according to the frequency support plan to provide frequency support for the power grid.

[0095] This embodiment provides a frequency support method for a new energy power station. By monitoring the frequency of the power grid and determining the frequency offset of the power grid, when the frequency offset is greater than a preset threshold, according to the output power of each power generation device in the new energy power station, determine the response power range of each power generation device for frequency support; generate a target frequency support plan according to the frequency offset, the response power range, and the stored power; according to the frequency support plan, schedule the power generation device and the energy storage device to support the frequency of the power grid. Therefore, in this embodiment, when it is confirmed that the power grid needs frequency support, the response power range that can be used for frequency support of several power generation devices in the new energy power station is evaluated, and then a frequency support plan for scheduling each power generation device is generated. By involving multiple power generation devices in the scheduling of power grid frequency support, the frequency support ability of the new energy power station for the power grid is effectively improved.

[0096] See Figure 2 , which is a schematic structural diagram of a frequency support device for a new energy power station provided by an embodiment of the present invention, including:

[0097] A data acquisition module, configured to acquire the frequency of the power grid accessed by the new energy power station, the output power of each power generation device in the new energy power station, and the stored power of the energy storage device in the new energy power station;

[0098] Determine the frequency offset of the power grid according to the frequency;

[0099] A range determination module, configured to, when the frequency offset is greater than a preset threshold, determine the response power range of each power generation device for frequency support according to the output power;

[0100] A scheme generation module, configured to generate a target frequency support plan according to the frequency offset, the response power range, and the stored power;

[0101] A frequency support module, configured to schedule the power generation device and the energy storage device according to the frequency support plan to support the frequency of the power grid.

[0102] Preferably, the range determination module determines the response power range of each power generation device for frequency support according to the output power, including:

[0103] Obtain the weather factors related to each power generation device;

[0104] Evaluate the maximum output power and the minimum output power of each power generation device according to the weather factors;

[0105] Calculate the response power range of each power generation device for frequency support according to the output power, the maximum output power, and the minimum output power.

[0106] It should be noted that the device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, in the attached drawings of the device embodiments provided by the present invention, the connection relationship between modules indicates that there is a communication connection between them, which can be specifically implemented as one or more communication buses or signal lines. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0107] Those skilled in the art can clearly understand that for the sake of convenience and brevity, the specific working process of the device described above can refer to the corresponding process in the foregoing method embodiment, and will not be elaborated here.

[0108] Another preferred embodiment of the present invention provides a terminal device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor. When the processor executes the computer program, it implements a frequency support method for a new energy power station as described in any one of the above embodiments.

[0109] The terminal device can be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. The terminal device may include, but is not limited to, a processor and a memory.

[0110] The so-called processor may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The processor is the control center of the terminal device, and connects various parts of the entire terminal device through various interfaces and lines.

[0111] The memory can be used to store the computer program. By running or executing the computer program stored in the memory and invoking the data stored in the memory, the processor realizes various functions of the terminal device. The memory mainly includes a program storage area and a data storage area. Among them, the program storage area can store the operating system, application programs required for at least one function, etc.; the data storage area can store data created according to the use of the mobile phone, etc. In addition, the memory can include high-speed random access memory and can also include non-volatile memory, such as hard disks, memory, plug-in hard disks, smart media cards (SMCs), secure digital (SD) cards, flash cards, at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.

[0112] Another preferred embodiment of the present invention provides a storage medium, which is a computer-readable storage medium. The computer program is stored in the computer-readable storage medium. When the computer program is executed by the processor, the steps of the above-mentioned method embodiments can be realized. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc.

[0113] The above is the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A frequency support method for a new energy station, characterized in that: include: Obtain the frequency of the power grid to which the new energy station is connected, the output power of each power generation equipment in the new energy station, and the storage power of the energy storage equipment in the new energy station; Determining a frequency offset of the power grid according to the frequency; When the frequency offset is greater than a preset threshold, determining a response power range of each of the power generation devices for frequency support according to the output power; Generate a target frequency support solution according to the frequency offset, the response power range, and the stored power; According to the frequency support scheme, the power generation equipment and the energy storage equipment are scheduled to provide frequency support for the power grid.

2. A frequency support method for a new energy station as claimed in claim 1, characterized in that: Determining the response power range of each of the power generation devices for frequency support according to the output power includes: Obtaining weather factors related to each of the power generation equipment; According to the weather factors, evaluating the maximum output power and the minimum output power of each of the power generation equipment; According to the output power, the maximum output power and the minimum output power, a response power range of each of the power generation devices for frequency support is calculated.

3. A frequency support method for a new energy station as claimed in claim 2, characterized in that: The calculating, according to the output power, the maximum output power and the minimum output power, a response power range of each of the power generation devices for frequency support comprises: Taking the difference between the minimum output power and the output power as the minimum value in the response power range; The difference between the maximum output power and the output power is taken as the maximum value in the response power range.

4. A frequency support method for a new energy station as claimed in claim 1, characterized in that: Before generating a target frequency support solution according to the frequency offset, the response power range, and the stored power, the method further includes: Obtaining a preset target response power range of a target power generation device; Judging whether the target power generation equipment can achieve frequency support for the power grid according to the target response power range and the frequency offset; If yes, generating the target frequency support scheme according to the target response power range and the frequency offset; If not, a target frequency support solution is generated according to the frequency offset, the response power range, and the stored power.

5. A frequency support method for a new energy station as claimed in claim 4, characterized in that: The generating a target frequency support scheme according to the frequency offset, the response power range, and the stored power includes: Randomly generate a number of sets of frequency modulation response devices; wherein the frequency modulation response device sets are composed of a number of randomly selected power generation devices and energy storage devices; Generate a frequency support scheme for each group of frequency modulation response device sets according to the frequency offset, the response power range, and the stored power; Calculating the frequency response time of each set of frequency modulation response devices according to the frequency support scheme; The frequency support solution of the target frequency modulation response device set corresponding to the minimum frequency response time is used as the target frequency support solution.

6. A frequency support method for a new energy station as claimed in claim 5, characterized in that: Generating a frequency support scheme for each set of frequency modulation response devices according to the frequency offset, the response power range, and the stored power includes: Determine, within the response power range, a first initial response adjustment power of each power generation device in the frequency modulation response device set; Determining a second initial response adjustment power of the energy storage device according to the stored power; Determining an initial response frequency adjustment amount of a corresponding frequency modulation response device set according to the first initial response adjustment power and the second initial response adjustment power; Taking the response power range and the stored power as constraints, according to the initial response frequency adjustment amount, the first initial response output power of the power generation equipment and the second initial response output power of the energy storage equipment in each group of frequency modulation response equipment sets are optimized, and when the difference between the response frequency adjustment amount of the new energy station and the frequency offset amount is minimized, a frequency support plan for each group of frequency modulation response equipment sets is generated.

7. A frequency support device for a new energy station, characterized in that: include: A data acquisition module is used to obtain the frequency of the power grid to which the new energy station is connected, the output power of each power generation equipment in the new energy station, and the storage power of the energy storage equipment in the new energy station; A frequency calculation module, used to determine a frequency offset of the power grid according to the frequency; A range determination module, configured to determine, when the frequency offset is greater than a preset threshold, a response power range of each of the power generation devices for frequency support according to the output power; A scheme generating module, used for generating a target frequency support scheme according to the frequency offset, the response power range, and the stored power; A frequency support module is used to dispatch the power generation equipment and the energy storage equipment according to the frequency support scheme to provide frequency support for the power grid.

8. A frequency support device for a new energy station as claimed in claim 7, characterized in that: The range determination module determines the response power range of each of the power generation devices for frequency support according to the output power, including: Obtaining weather factors related to each of the power generation equipment; According to the weather factors, evaluating the maximum output power and the minimum output power of each of the power generation equipment; According to the output power, the maximum output power and the minimum output power, a response power range of each of the power generation devices for frequency support is calculated.

9. A terminal device, characterized in that: It includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, it implements a frequency support method for a new energy station as described in any one of claims 1 to 6.

10. A storage medium, characterized in that: The storage medium includes a stored computer program, wherein, when the computer program is running, the device where the storage medium is located is controlled to execute a frequency support method for a new energy station as described in any one of claims 1 to 6.

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