Coordinated control method, device and electronic equipment of energy storage system and wind turbine generator set

Abstract

The present application discloses a method, device, electronic device and storage medium for coordinated control of an energy storage system and a wind turbine. The method includes: obtaining the current control strategy and maximum adjustable power of the wind turbine, the actual speed and target speed of the stator in the wind turbine, and the rated minimum speed and rated maximum speed of the rotor in the wind turbine; in response to a change in the power shortage of the access system of the wind turbine, determining the change information of the power shortage; according to the change information of the power shortage, combined with at least multiple of the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed and maximum adjustable power, adjusting the power of the energy storage system. Through the technical solution of the present application, when the access system of the wind turbine falls into a frequency offset problem caused by power imbalance, the frequency support of the access system can be provided by adjusting the working state and working power of the energy storage system connected to the wind turbine.

Description

Technical Field

[0001] The present application relates to the technical field of wind power generation, and in particular to a method, device and electronic equipment for coordinated control of an energy storage system and a wind turbine generator set. Background Art

[0002] In related technologies, when large-scale offshore wind power is connected to the onshore power grid, the proportion of synchronous units with rotational kinetic energy reserves will drop significantly, and new energy sources such as wind and light will be connected to the power system at a higher proportion. This will cause the equivalent inertia of the power system to continue to weaken and its ability to resist frequency disturbances to deteriorate, greatly increasing the probability of causing potential serious frequency accidents. In order to improve the inertia regulation capability of new energy sources, it is necessary to provide frequency support for the access system of wind turbines. Summary of the invention

[0003] The present application provides a method, device, electronic device and storage medium for coordinated control of an energy storage system and a wind turbine. When the access system of the wind turbine encounters a frequency offset problem caused by power imbalance, the frequency support of the access system can be provided by adjusting the working state and working power of the energy storage system connected to the wind turbine.

[0004] In a first aspect, an embodiment of the present application provides a method for coordinated control of an energy storage system and a wind turbine generator set, comprising: obtaining a current control strategy and a maximum adjustable power of the wind turbine generator set, an actual speed and a target speed of a stator in the wind turbine generator set, and a rated minimum speed and a rated maximum speed of a rotor in the wind turbine generator set; in response to a change in a power shortage of a system connected to the wind turbine generator set, determining change information of the power shortage; and adjusting the power of the energy storage system according to the change information of the power shortage, in combination with at least multiple of the current control strategy, the actual speed, the target speed, the rated minimum speed, the rated maximum speed and the maximum adjustable power.

[0005] In this technical solution, when the access system of the wind turbine generator set encounters a frequency offset problem caused by power imbalance, the power of the energy storage system can be adjusted according to the change information of the power shortage, combined with at least multiple of the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed and maximum adjustable power, so as to coordinate control with the wind turbine generator set in real time to provide frequency support for the access system.

[0006] In one implementation, the power shortage change information includes power shortage reduction information, and the power of the energy storage system is adjusted according to the power shortage change information in combination with at least one of the current control strategy, the actual speed, the target speed, the rated minimum speed, the rated maximum speed and the maximum adjustable power, including: obtaining a first calculation parameter value of the wind turbine based on the actual speed, the target speed and the rated minimum speed; and obtaining the output power of the energy storage system based on the current control strategy, the maximum adjustable power and the first calculation parameter value.

[0007] In this technical solution, when the access system of the wind turbine generator set falls into a frequency deviation caused by power imbalance, which leads to a reduction in power shortage, the output power of the energy storage system can be obtained according to the change information of the power shortage, combined with at least multiple of the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed and maximum adjustable power, so as to adjust the power of the energy storage system, thereby coordinating and controlling with the wind turbine generator set in real time to provide frequency support for the access system.

[0008] In an optional implementation, the calculation formula of the first calculation parameter value is expressed as follows:

[0009]

[0010] Among them, k up is the first calculation parameter value, ω is the actual speed, ω opt is the target speed, ω min is the rated minimum speed.

[0011] In an optional implementation, the calculation formula for the output power is:

[0012] P s =∑k upi k i ΔP max

[0013] Among them, P s is the output power, k upi is the first calculation parameter of the i-th wind turbine in the wind turbine, i is a positive integer and is less than or equal to the total number of wind turbines. When the control strategy of the i-th wind turbine is grid-following control, k i =1, when the control strategy of the i-th wind turbine is grid control, k i =0,ΔP max is the maximum adjustable power.

[0014] In one implementation, the change in the power deficit is an increase in the power deficit, and the power of the energy storage system is adjusted based on the change information of the power deficit in combination with at least one of the current control strategy, the actual speed, the target speed, the rated minimum speed, the rated maximum speed and the maximum adjustable power, including: obtaining a second calculation parameter value of the wind turbine based on the actual speed, the target speed and the rated maximum speed; and obtaining the absorbed power of the energy storage system based on the current control strategy, the maximum adjustable power and the second calculation parameter value.

[0015] In an optional implementation, the calculation formula of the second calculation parameter value is expressed as follows:

[0016]

[0017] Among them, k down is the second calculation parameter value, ω is the actual speed, ω opt is the target speed, ω max is the rated maximum speed.

[0018] In an optional implementation, the calculation formula of the absorbed power is expressed as follows:

[0019] P s =∑k downi k i ΔP max

[0020] Among them, P s is the absorbed power, k upi is the second calculation parameter of the i-th wind turbine in the wind turbine, i is a positive integer and is less than or equal to the total number of wind turbines. When the control strategy of the i-th wind turbine is grid-following control, k i =1, when the control strategy of the i-th wind turbine is grid control, k i =0,ΔP max is the maximum adjustable power.

[0021] In a second aspect, an embodiment of the present application provides a collaborative control device for an energy storage system and a wind turbine generator set, including: an acquisition module, used to acquire a current control strategy and a maximum adjustable power of the wind turbine generator set, an actual speed and a target speed of a stator in the wind turbine generator set, and a rated minimum speed and a rated maximum speed of a rotor in the wind turbine generator set; a determination module, used to determine change information of the power shortage in response to a change in the power shortage of a connected system of the wind turbine generator set; a processing module, used to adjust the power of the energy storage system according to the change information of the power shortage, in combination with at least multiple of the current control strategy, the actual speed, the target speed, the rated minimum speed, the rated maximum speed and the maximum adjustable power.

[0022] In one implementation, the power shortage change information includes power shortage reduction information, and the processing module is specifically used to: obtain a first calculation parameter value of the wind turbine group based on the actual speed, the target speed, and the rated minimum speed; and obtain the output power of the energy storage system based on the current control strategy, the maximum adjustable power and the first calculation parameter value.

[0023] In an optional implementation, the calculation formula of the first calculation parameter value is expressed as follows:

[0024]

[0025] Among them, k up is the first calculation parameter value, ω is the actual speed, ω opt is the target speed, ω min is the rated minimum speed.

[0026] In an optional implementation, the calculation formula for the output power is:

[0027] P s =∑k upi k i ΔP max

[0028] Among them, P s is the output power, k upi is the first calculation parameter of the i-th wind turbine in the wind turbine, i is a positive integer and is less than or equal to the total number of wind turbines. When the control strategy of the i-th wind turbine is grid-following control, k i =1, when the control strategy of the i-th wind turbine is grid control, k i =0,ΔP max is the maximum adjustable power.

[0029] In one implementation, the change in the power deficit is an increase in the power deficit, and the processing module is specifically used to: obtain a second calculation parameter value of the wind turbine group based on the actual speed, the target speed, and the rated maximum speed; and obtain the absorbed power of the energy storage system based on the current control strategy, the maximum adjustable power and the second calculation parameter value.

[0030] In this technical solution, when the access system of the wind turbine generator set falls into a frequency deviation caused by power imbalance, which leads to an increase in power shortage, the output power of the energy storage system can be obtained according to the change information of the power shortage, combined with at least multiple of the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed and maximum adjustable power, so as to adjust the power of the energy storage system, thereby coordinating and controlling with the wind turbine generator set in real time to provide frequency support for the access system.

[0031] In an optional implementation, the calculation formula of the second calculation parameter value is expressed as follows:

[0032]

[0033] Among them, k down is the second calculation parameter value, ω is the actual speed, ω opt is the target speed, ω max is the rated maximum speed.

[0034] In an optional implementation, the calculation formula of the absorbed power is expressed as follows:

[0035] P s =∑k downi k i ΔP max

[0036] Among them, P s is the absorbed power, k upi is the second calculation parameter of the i-th wind turbine in the wind turbine, i is a positive integer and is less than or equal to the total number of wind turbines. When the control strategy of the i-th wind turbine is grid-following control, k i =1, when the control strategy of the i-th wind turbine is grid control, k i =0,ΔP max is the maximum adjustable power.

[0037] In a third aspect, an embodiment of the present application provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the collaborative control method of the energy storage system and the wind turbine group as described in the first aspect.

[0038] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium for storing instructions, which, when executed, enables the method described in the first aspect to be implemented.

[0039] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of the method for coordinated control of an energy storage system and a wind turbine generator set as described in the first aspect.

[0040] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present application.

[0042] Figure 1 is a schematic diagram of a coordinated control method of an energy storage system and a wind turbine generator set provided in an embodiment of the present application;

[0043] Figure 2 is a schematic diagram of another method for coordinated control of an energy storage system and a wind turbine generator set provided in an embodiment of the present application;

[0044] Figure 3 is a schematic diagram of another method for coordinated control of an energy storage system and a wind turbine generator set provided in an embodiment of the present application;

[0045] Figure 4 is a schematic diagram of a coordinated control device for an energy storage system and a wind turbine generator set provided in an embodiment of the present application;

[0046] Figure 5 is a schematic block diagram of an example electronic device that can be used to implement embodiments of the present application. DETAILED DESCRIPTION

[0047] The following is a description of exemplary embodiments of the present application in conjunction with the accompanying drawings, including various details of the embodiments of the present application to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. Similarly, for the sake of clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0048] In the description of this application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article 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 mean: A exists alone, A and B exist at the same time, and B exists alone. The various numbers such as first, second, etc. involved in this application are only distinguished for the convenience of description, and are not used to limit the scope of the embodiments of this application, nor do they indicate the order of precedence.

[0049] See also Figure 1 , Figure 1 Schematic diagram of a method for coordinated control of an energy storage system and a wind turbine generator set provided in an embodiment of the present application. Figure 1 As shown, the method may include but is not limited to the following steps:

[0050] Step S101: obtaining the current control strategy and maximum adjustable power of the wind turbine generator set, the actual speed and target speed of the stator in the wind turbine generator, and the rated minimum speed and rated maximum speed of the rotor in the wind turbine generator.

[0051] Among them, in the embodiments of the present application, the above-mentioned control strategy includes a grid-following control strategy and a grid-building control strategy; the above-mentioned target speed can be the optimal speed under MPPT (Maximum Power Point Tracking) control.

[0052] It should be noted that, in the embodiments of the present application, the number of the wind turbine generator set may be one or more.

[0053] Step S102: In response to a change in the power shortage of the access system of the wind turbine generator system, determining information on the change in the power shortage.

[0054] For example, in response to the access system of the wind turbine generator set falling into a frequency deviation caused by power imbalance, which leads to a change in power shortage, determining the change information of the power shortage

[0055] Step S103: According to the power shortage change information, the power of the energy storage system is adjusted in combination with at least multiple of the current control strategy, the actual speed, the target speed, the rated minimum speed, the rated maximum speed and the maximum adjustable power.

[0056] For example, based on the change information of power shortage, it is determined that the energy storage system needs to output power to the grid or absorb power from the grid, and combined with at least one of the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed and maximum adjustable power, the specific value of the above output power or absorbed power is determined to adjust the power of the energy storage system.

[0057] By implementing the embodiments of the present application, when the access system of the wind turbine generator set encounters a frequency offset problem caused by power imbalance, the power of the energy storage system can be adjusted according to the change information of the power shortage, combined with at least multiple of the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed and maximum adjustable power, so as to coordinate control with the wind turbine generator set in real time to provide frequency support for the access system.

[0058] In one implementation, the power shortage change information includes reduced power shortage information, so that the specific value of the energy storage system's required output power can be determined based on the power shortage change information and combined with at least one of the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed, and maximum adjustable power. As an example, see Figure 2 , Figure 2 FIG. 1 is a schematic diagram of another method for coordinated control of an energy storage system and a wind turbine generator set provided in an embodiment of the present application. Figure 2 As shown, the method may include but is not limited to the following steps.

[0059] Step S201: obtaining the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed and maximum adjustable power of the wind turbine.

[0060] In the embodiments of the present application, step S201 can be implemented in any of the ways in the embodiments of the present application, and the embodiments of the present application do not limit this and will not be described in detail.

[0061] Step S202: In response to a change in the power shortage of the access system of the wind turbine generator system, determine to reduce the power shortage information.

[0062] For example, in response to the access system of the wind turbine generator set falling into a frequency deviation caused by power imbalance, which in turn causes a reduction in power shortage, it is determined to reduce the power shortage information.

[0063] Step S203: obtaining a first calculation parameter value of the wind turbine generator system based on the actual rotation speed, the target rotation speed, and the rated minimum rotation speed.

[0064] In an optional implementation, the calculation formula of the first calculation parameter value is expressed as follows:

[0065]

[0066] Among them, k up is the first calculation parameter value, ω is the actual speed, ω opt is the target speed, ω min The rated minimum speed.

[0067] Step S204: Based on the current control strategy, the maximum adjustable power and the first calculation parameter value, the output power of the energy storage system is obtained.

[0068] For example, based on the current control strategy, the maximum adjustable power and the first calculation parameter value, the output power that the energy storage system needs to output to the power grid is obtained.

[0069] In an optional implementation, the calculation formula for the output power is:

[0070] P s =∑k upi k i ΔP max

[0071] Among them, P s is the output power, k upi is the first calculation parameter of the i-th wind turbine in the wind turbine group, i is a positive integer and less than the total number of wind turbines. When the control strategy of the i-th wind turbine group is grid-following control, k i =1, when the control strategy of the i-th wind turbine is grid-following control, k i =0,ΔP max is the maximum adjustable power.

[0072] By implementing the embodiments of the present application, when the access system of the wind turbine generator set falls into a frequency deviation caused by power imbalance, which leads to a reduction in power shortage, the output power of the energy storage system can be obtained according to the change information of the power shortage, combined with at least multiple of the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed and maximum adjustable power, so as to adjust the power of the energy storage system, thereby coordinating and controlling with the wind turbine generator set in real time to provide frequency support for the access system.

[0073] In one implementation, the power shortage change information includes the increased power shortage information, so that the specific value of the power that the energy storage system needs to absorb from the power grid can be determined based on the power shortage change information and combined with at least one of the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed and maximum adjustable power. As an example, see Figure 3 , Figure 3 FIG. 1 is a schematic diagram of another method for coordinated control of an energy storage system and a wind turbine generator set provided in an embodiment of the present application. Figure 3 As shown, the method may include but is not limited to the following steps.

[0074] Step S301: obtaining the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed and maximum adjustable power of the wind turbine.

[0075] In the embodiments of the present application, step S301 can be implemented in any of the embodiments of the present application, and the embodiments of the present application do not limit this and will not be described in detail.

[0076] Step 3202: In response to a change in the power shortage of the access system of the wind turbine generator system, determine to increase the power shortage information.

[0077] For example, in response to the access system of the wind turbine generator set falling into a frequency deviation caused by power imbalance, which in turn causes an increase in power shortage, it is determined to increase the power shortage information.

[0078] Step S303: based on the actual rotation speed, the target rotation speed and the rated maximum rotation speed, a second calculation parameter value of the wind turbine generator system is obtained.

[0079] In an optional implementation, the calculation formula of the second calculation parameter value is expressed as follows:

[0080]

[0081] Among them, k down is the second calculation parameter value, ω is the actual speed, ω opt is the target speed, ω max The rated maximum speed.

[0082] Step S304: based on the current control strategy, the maximum adjustable power and the second calculation parameter value, the absorbed power of the energy storage system is obtained.

[0083] For example, based on the current control strategy, the maximum adjustable power and the first calculation parameter value, the absorbed power that the energy storage system needs to absorb from the power grid is obtained.

[0084] In an optional implementation, the calculation formula of the absorbed power is expressed as follows:

[0085] P s =∑k downi k i ΔP max

[0086] Among them, P s is the absorbed power, k upi is the second calculation parameter of the i-th wind turbine in the wind turbine group, i is a positive integer and is less than or equal to the total number of wind turbines. When the control strategy of the i-th wind turbine group is grid-following control, k i =1, when the control strategy of the i-th wind turbine is grid-following control, k i =0,ΔP max is the maximum adjustable power.

[0087] By implementing the embodiments of the present application, when the access system of the wind turbine generator set falls into a frequency deviation caused by power imbalance, which leads to an increase in power shortage, the output power of the energy storage system can be obtained according to the change information of the power shortage, combined with at least multiple of the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed and maximum adjustable power, so as to adjust the power of the energy storage system, thereby coordinating and controlling with the wind turbine generator set in real time to provide frequency support for the access system.

[0088] See also Figure 4 , Figure 4 is a schematic diagram of a coordinated control device for an energy storage system and a wind turbine generator set provided in an embodiment of the present application, such as Figure 4 As shown, the device 400 includes: an acquisition module 401, which is used to acquire the current control strategy and maximum adjustable power of the wind turbine, the actual speed and target speed of the stator in the wind turbine, and the rated minimum speed and rated maximum speed of the rotor in the wind turbine; a determination module 402, which is used to determine the change information of the power shortage in response to the change of the power shortage of the access system of the wind turbine; a processing module 403, which is used to adjust the power of the energy storage system according to the change information of the power shortage, in combination with at least multiple of the current control strategy, the actual speed, the target speed, the rated minimum speed, the rated maximum speed and the maximum adjustable power.

[0089] In one implementation, the power shortage change information includes power shortage reduction information, and the processing module is specifically used to: obtain a first calculation parameter value of the wind turbine based on the actual speed, the target speed, and the rated minimum speed; and obtain the output power of the energy storage system based on the current control strategy, the maximum adjustable power and the first calculation parameter value.

[0090] In an optional implementation, the calculation formula of the first calculation parameter value is expressed as follows:

[0091]

[0092] Among them, k up is the first calculation parameter value, ω is the actual speed, ω opt is the target speed, ω min The rated minimum speed.

[0093] In an optional implementation, the calculation formula for the output power is:

[0094] P s =∑k upi k i ΔP max

[0095] Among them, P s is the output power, k upi is the first calculation parameter of the i-th wind turbine in the wind turbine group, i is a positive integer and less than the total number of wind turbines. When the control strategy of the i-th wind turbine group is grid-following control, k i =1, when the control strategy of the i-th wind turbine is grid control, k i =0,ΔP max is the maximum adjustable power.

[0096] In one implementation, the change in the power deficit is an increase in the power deficit, and the processing module is specifically used to: obtain a second calculation parameter value of the wind turbine based on the actual speed, the target speed, and the rated maximum speed; and obtain the absorbed power of the energy storage system based on the current control strategy, the maximum adjustable power, and the second calculation parameter value.

[0097] In an optional implementation, the calculation formula of the second calculation parameter value is expressed as follows:

[0098]

[0099] Among them, k down is the second calculation parameter value, ω is the actual speed, ω opt is the target speed, ω max The rated maximum speed.

[0100] In an optional implementation, the calculation formula of the absorbed power is expressed as follows:

[0101] P s =∑k downi k i ΔP max

[0102] Among them, P s is the absorbed power, k upiis the second calculation parameter of the i-th wind turbine in the wind turbine group, i is a positive integer and is less than or equal to the total number of wind turbines. When the control strategy of the i-th wind turbine group is grid-following control, k i =1, when the control strategy of the i-th wind turbine is grid control, k i =0,ΔP max is the maximum adjustable power.

[0103] Through the device of the embodiment of the present application, when the access system of the wind turbine set encounters a frequency offset problem caused by power imbalance, the power of the energy storage system can be adjusted according to the change information of the power shortage, combined with at least multiple of the current control strategy, actual speed, target speed, rated minimum speed, rated maximum speed and maximum adjustable power, so as to coordinate control with the wind turbine set in real time to provide frequency support for the access system.

[0104] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0105] Based on the embodiments of the present application, the present application also provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the collaborative control method of the energy storage system and the wind turbine group of any of the aforementioned embodiments.

[0106] Based on the embodiments of the present application, the present application also provides a computer-readable storage medium, wherein computer instructions are used to enable a computer to execute a method for coordinated control of an energy storage system and a wind turbine generator set according to any of the foregoing embodiments provided in the embodiments of the present application.

[0107] See also Figure 5 ,like Figure 5 , is a schematic block diagram of an example electronic device that can be used to implement an embodiment of the present application. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described and / or required herein.

[0108] like Figure 5As shown, the device 500 includes a computing unit 501, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 502 or a computer program loaded from a storage unit 508 to a random access memory (RAM) 503. In the RAM 503, various programs and data required for the operation of the device 500 can also be stored. The computing unit 501, the ROM 502, and the RAM 503 are connected to each other via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0109] A number of components in the device 500 are connected to the I / O interface 505, including: an input unit 506, such as a keyboard, a mouse, etc.; an output unit 507, such as various types of displays, speakers, etc.; a storage unit 508, such as a disk, an optical disk, etc.; and a communication unit 509, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 509 allows the device 500 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0110] The computing unit 501 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 501 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, digital signal processors (DSP), and any appropriate processors, controllers, microcontrollers, etc. The computing unit 501 performs the various methods and processes described above, such as a collaborative control method of an energy storage system and a wind turbine. For example, in some embodiments, the collaborative control method of an energy storage system and a wind turbine may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 508. In some embodiments, part or all of the computer program may be loaded and / or installed on the device 500 via the ROM 502 and / or the communication unit 509. When the computer program is loaded into the RAM 503 and executed by the computing unit 501, one or more steps of the collaborative control method of the energy storage system and the wind turbine described above may be executed. Alternatively, in other embodiments, the computing unit 501 may be configured to execute the coordinated control method of the energy storage system and the wind turbine generator set in any other appropriate manner (for example, by means of firmware).

[0111] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard parts (ASSPs), system on chip systems (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a dedicated or general programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0112] The program code for implementing the method of the present application can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, implements the functions / operations specified in the flow chart and / or block diagram. The program code can be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0113] In the context of the present application, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0114] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a cathode ray tube (CRT) or LCD (Liquid Crystal Display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0115] The systems and techniques described herein can be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: Local Area Network (LAN), Wide Area Network (WAN), the Internet, and blockchain networks.

[0116] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship between the client and the server is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS (Virtual Private Server) services. The server may also be a server of a distributed system, or a server combined with a blockchain.

[0117] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in the present application can be executed in parallel, sequentially or in different orders, as long as the expected results of the technical solution of the present application can be achieved, and this document does not limit this.

[0118] The above specific implementations do not constitute a limitation on the protection scope of this application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included in the protection scope of this application.

Claims

1. A method for coordinated control of an energy storage system and a wind turbine generator set, characterized in that: The method comprises: Obtaining the current control strategy and maximum adjustable power of the wind turbine generator set, the actual speed and target speed of the rotor in the generator in the wind turbine generator set, and the rated minimum speed and rated maximum speed of the rotor in the generator in the wind turbine generator set; In response to a change in the power shortage of the access system of the wind turbine generator set, determining change information of the power shortage; According to the change information of the power shortage, in combination with at least multiple of the current control strategy, the actual speed, the target speed, the rated minimum speed, the rated maximum speed and the maximum adjustable power, the power of the energy storage system is adjusted; When reducing the power deficit, the power of the energy storage system is adjusted according to the change information of the power deficit and in combination with at least multiple of the current control strategy, the actual speed, the target speed, the rated minimum speed, the rated maximum speed and the maximum adjustable power, including: The first calculation parameter value of the wind turbine generator set is determined based on the actual speed, the target speed and the rated minimum speed, wherein the calculation formula of the first calculation parameter value is expressed as follows: in, is the first calculated parameter value, is the actual speed, is the target speed, is the rated minimum speed; The output power of the energy storage system is determined based on the current control strategy, the maximum adjustable power and the first calculation parameter value, wherein the calculation formula of the output power is expressed as follows: in, is the output power, The wind turbine The first calculation parameter of a wind turbine is is a positive integer and is less than or equal to the total number of wind turbines. When the control strategy of a wind turbine is grid-following control , when When the control strategy of each wind turbine is grid-type control , is the maximum adjustable power.

2. The method according to claim 1, characterized in that When the power deficit is increased, the power of the energy storage system is adjusted according to the change information of the power deficit in combination with at least multiple of the current control strategy, the actual speed, the target speed, the rated minimum speed, the rated maximum speed and the maximum adjustable power, further comprising: Based on the actual rotation speed, the target rotation speed, and the rated maximum rotation speed, obtaining a second calculation parameter value of the wind turbine generator set; Based on the current control strategy, the maximum adjustable power and the second calculation parameter value, the absorbed power of the energy storage system is obtained.

3. The method according to claim 2, characterized in that The calculation formula of the second calculation parameter value is expressed as follows: in, For the second calculated parameter value, is the actual speed, is the target speed, is the rated maximum speed.

4. The method according to claim 2, characterized in that The calculation formula of the absorbed power is expressed as follows: in, is the absorbed power, The wind turbine The second calculation parameter of a wind turbine is is a positive integer and is less than or equal to the total number of wind turbines. When the control strategy of a wind turbine is grid-following control , when When the control strategy of each wind turbine is grid-type control , is the maximum adjustable power.

5. A coordinated control device for an energy storage system and a wind turbine generator set, characterized in that: The device comprises: An acquisition module, used to acquire the current control strategy and maximum adjustable power of the wind turbine generator set, the actual speed and target speed of the rotor in the generator in the wind turbine generator set, and the rated minimum speed and rated maximum speed of the rotor in the generator in the wind turbine generator set; A determination module, configured to determine change information of the power shortage in response to a change in the power shortage of the access system of the wind turbine generator set; a processing module, configured to adjust the power of the energy storage system according to the change information of the power shortage, in combination with at least multiple of the current control strategy, the actual speed, the target speed, the rated minimum speed, the rated maximum speed and the maximum adjustable power; When reducing the power deficit, the power of the energy storage system is adjusted according to the change information of the power deficit and in combination with at least multiple of the current control strategy, the actual speed, the target speed, the rated minimum speed, the rated maximum speed and the maximum adjustable power, including: The first calculation parameter value of the wind turbine generator set is determined based on the actual speed, the target speed and the rated minimum speed, wherein the calculation formula of the first calculation parameter value is expressed as follows: in, is the first calculated parameter value, is the actual speed, is the target speed, is the rated minimum speed; The output power of the energy storage system is determined based on the current control strategy, the maximum adjustable power and the first calculation parameter value, wherein the calculation formula of the output power is expressed as follows: in, is the output power, The wind turbine The first calculation parameter of a wind turbine is is a positive integer and is less than or equal to the total number of wind turbines. When the control strategy of a wind turbine is grid-following control , when When the control strategy of each wind turbine is grid-type control , is the maximum adjustable power.

6. An electronic device, characterized in that: include: at least one processor; and a memory communicatively coupled to the at least one processor; The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method according to any one of claims 1 to 4.

7. A computer-readable storage medium for storing instructions, characterized in that: When the instructions are executed, the method according to any one of claims 1 to 4 is implemented.

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