Wind turbine generator backup power supply system, method, equipment, medium and product

Abstract

The invention provides a wind turbine generator backup power supply system, which comprises a wind turbine generator main controller and a wind turbine generator cabin system load device, and the wind turbine generator main controller is in communication connection with the wind turbine generator cabin system load device; the back-up power supply module is electrically connected with the wind turbine generator cabin system load equipment, the back-up power supply module comprises a storage battery pack and a back-up power supply controller, and the back-up power supply module is in electric signal connection with the back-up power supply controller; and the miniature wind power generation system is electrically connected with the back-up power supply module, the miniature wind power generation system comprises a miniature fan and a miniature fan controller, and the miniature fan is in electric signal connection with the miniature fan controller. The technical problems that in the prior art, an existing wind power plant back-up power source mostly adopts a diesel generator to supply power, regular maintenance and fuel oil supply are needed, and inconvenience is particularly inconvenient in remote areas or severe weather are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power equipment, and in particular to a backup power supply system, method, equipment, medium and product for a wind turbine generator set. Background Art

[0002] In the field of wind power generation, wind farm projects face the challenge of extreme wind conditions. Under these extreme conditions, the units may be overloaded, thus affecting their normal operation. Especially in the off-grid state where the power grid is out of power, how to ensure that the wind turbines have a continuous power supply capability is an important issue to ensure the normal operation of the wind turbines. Traditionally, the backup power supply of wind turbines mainly relies on the power grid for charging, but this method has limitations. For example, in remote areas or under extreme weather conditions, the power grid may also be cut off for various reasons, resulting in insufficient backup power supply, which cannot meet the power demand of wind turbines in typhoon resistance and special working conditions.

[0003] In wind farms currently on the market, typhoon-resistant backup power supply models mostly use diesel generators for power supply due to cost and complexity of practical applications. However, the operation of diesel generators requires regular maintenance and fuel replenishment, which is particularly inconvenient and costly in remote areas or under severe weather conditions.

[0004] In view of this, the inventor proposes a wind turbine backup power supply system, method, device, medium and product. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention proposes a wind turbine backup power supply system, method, equipment, medium and product to solve the technical problem that the existing wind power plant backup power supply mostly uses diesel generators for power supply, which requires regular maintenance and fuel replenishment, which is particularly inconvenient in remote areas or in bad weather.

[0006] The technical solution adopted by the present invention is: in the first aspect, a backup power supply system for a wind turbine generator set is provided, comprising:

[0007] A main controller of a wind turbine set and a load device of a cabin system of the wind turbine set, wherein the main controller of the wind turbine set and the load device of the cabin system of the wind turbine set are communicatively connected;

[0008] A backup power supply module, the backup power supply module is electrically connected to the load device of the wind turbine cabin system, the backup power supply module includes a battery pack and a backup power supply controller, and the backup power supply module is electrically signal connected to the backup power supply controller; and

[0009] A micro wind power generation system, wherein the micro wind power generation system is electrically connected to a backup power supply module, and the micro wind power generation system comprises a micro fan and a micro fan controller, and the micro fan and the micro fan controller are electrically signal connected.

[0010] Furthermore, the backup power supply module also includes an energy storage inverter, which is used to enable energy conversion and bidirectional flow between the battery pack and the power grid, and the energy storage inverter is communicatively connected to the main controller of the wind turbine set.

[0011] Furthermore, the energy storage converter includes a DC / AC bidirectional converter and a converter control unit, and the control unit is communicatively connected to the main controller of the wind turbine generator set.

[0012] Furthermore, the energy storage converter and the micro-blower controller are connected using the ModbusTCP communication protocol.

[0013] Furthermore, the backup power supply module also includes a battery management unit, which is used to monitor the status of the battery and includes a battery management chip and an embedded microprocessor.

[0014] Furthermore, the backup power supply module also includes an energy management system, which is used for real-time monitoring and functional management of the equipment operation status.

[0015] In a second aspect, a method for supplying power to a backup power supply of a wind turbine generator set is provided, which is implemented by using the backup power supply system for the wind turbine generator set described in the first aspect, and includes:

[0016] Obtaining battery capacity data of the battery pack, determining whether the battery capacity is greater than a first protection threshold, if the battery capacity is greater than the first protection threshold, the micro fan enters a rest mode, if less than the first protection threshold, the micro fan enters a charging mode to charge the battery pack;

[0017] When the micro fan enters the charging mode, it is determined whether the battery capacity is greater than the second protection threshold. If it is greater than the second protection threshold, the battery pack is fully charged and the micro fan enters the rest mode. If it is not greater than the second protection threshold, it is continued to determine whether the battery capacity is greater than the first protection threshold and the first step is repeated.

[0018] In a third aspect, an electronic device is provided, comprising a processor, an input device, an output device and a memory, wherein the processor, the input device, the output device and the memory are interconnected, wherein the memory is used to store a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute the wind turbine backup power supply method as described in the second aspect.

[0019] In a fourth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes the method for supplying power to a backup power supply for a wind turbine set as described in the second aspect.

[0020] In a fifth aspect, a computer program product is provided, the computer program product comprising a non-transitory computer-readable storage medium storing a computer program, the computer program enabling a computer to execute all steps of the method for supplying power to a wind turbine generator set with a backup power supply as described in the second aspect.

[0021] It can be seen from the above technical solution that the beneficial technical effects of the present invention are as follows:

[0022] The wind turbine backup power supply system, method, equipment, medium and product proposed in the present invention realizes the use of micro wind turbines to charge the backup power supply when the power grid is disconnected by integrating the communication connection between the micro wind turbine and the main controller of the wind turbine and the load equipment of the cabin system, so that the wind turbine can obtain sufficient backup power supply during hoisting, commissioning and operation. It not only improves the power support capacity of the backup power supply, ensures the power demand and operation safety of the wind turbine in typhoon resistance and various special working conditions, but also significantly reduces the manual charging and operation and maintenance costs, optimizes the overall performance and reliability of the wind turbine, and solves the technical problem that the existing wind power plant backup power supply in the prior art is mostly powered by diesel generators, which requires regular maintenance and fuel replenishment, and is particularly inconvenient in remote areas or bad weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0024] Figure 1 A system structure diagram provided for a wind turbine backup power supply system proposed in Embodiment 1 of the present invention;

[0025] Figure 2 A general control flow chart of a wind turbine backup power supply method provided in Embodiment 1 of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of an electronic device proposed in Embodiment 1 of the present invention. DETAILED DESCRIPTION

[0027] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0028] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0029] In order to solve the technical problem that the existing wind power plant backup power supply mostly uses diesel generators for power supply, which requires regular maintenance and fuel replenishment, which is particularly inconvenient in remote areas or in bad weather, firstly, Figure 1 As shown, including:

[0030] A main controller of a wind turbine set and a load device of a cabin system of the wind turbine set, wherein the main controller of the wind turbine set and the load device of the cabin system of the wind turbine set are communicatively connected;

[0031] A backup power supply module, the backup power supply module is electrically connected to the load device of the wind turbine cabin system, the backup power supply module includes a battery pack and a backup power supply controller, and the backup power supply module is electrically signal connected to the backup power supply controller; and

[0032] A micro wind power generation system, wherein the micro wind power generation system is electrically connected to a backup power supply module, and the micro wind power generation system includes a micro fan and a micro fan controller, wherein the micro fan and the micro fan controller are electrically signal connected. By introducing the micro wind power generation system, the system can charge the backup power supply, i.e., the battery pack, when the wind turbine is in an off-grid power-off state, thereby significantly improving the power support capacity of the backup power supply, thereby solving the limitation that the traditional backup power supply can only be charged manually or through the power grid, and ensuring that the backup power supply can continue to provide the required power for the wind turbine under extreme working conditions or when the power grid is out of power.

[0033] As a preferred solution of this embodiment, the backup power supply module also includes a power storage inverter (PCS), which is used to enable energy conversion and bidirectional flow between the battery pack and the power grid. The energy storage inverter is communicatively connected to the main controller of the wind turbine set. The introduction of the energy storage inverter enables the battery pack in the backup power supply module to not only serve as an emergency power supply when the power grid is out of power, but also to exchange energy with the power grid when the power grid is normally powered, thereby realizing bidirectional flow of electric energy. This enhances the energy management capability of the entire wind power system and improves the energy utilization efficiency.

[0034] In this embodiment, the energy storage converter includes a DC / AC bidirectional converter and a converter control unit. The control unit is connected to the main controller of the wind turbine generator set in communication. The DC / AC bidirectional converter can realize bidirectional and efficient conversion between direct current (DC) and alternating current (AC), which not only enables the battery pack to provide power to the load equipment of the grid or the wind turbine generator set cabin system when needed, but also can convert the alternating current into direct current and store it in the battery pack when the power generated by the grid or the wind turbine generator set is surplus. This bidirectional conversion capability greatly improves the energy utilization efficiency and flexibility of the system; through the communication connection with the main controller of the wind turbine generator set, the converter control unit can receive the instructions and status information of the main controller in real time, and quickly respond to and handle the abnormal conditions of the system. For example, when the battery pack is detected to be overcharged or over-discharged, the control unit can automatically cut off the charging or discharging circuit to protect the battery pack from damage. The establishment of this safety protection mechanism helps to improve the safety and stability of the entire system.

[0035] As a preferred solution of this embodiment, the energy storage inverter and the micro fan controller are connected using the ModbusTCP communication protocol. In this embodiment, ModbusTCP communication is a communication protocol based on the TCP / IP network with efficient data transmission capabilities. This embodiment uses this protocol to connect the energy storage inverter and the micro fan controller, which can ensure fast and stable communication between the two, thereby improving the response speed and operating efficiency of the entire system.

[0036] Preferably, in this embodiment, the backup power supply module also includes a battery management unit, which is used to monitor the status of the battery, and includes a battery management chip and an embedded microprocessor. By setting the battery management unit, various status parameters of the battery, such as voltage, current, temperature, etc., can be monitored in real time. Through the coordinated work of the battery management chip and the embedded microprocessor, the charging and discharging process of the battery can be accurately controlled to prevent safety problems such as overcharging, over-discharging and overheating, thereby extending the service life of the battery and improving the stability and reliability of the entire backup power supply system.

[0037] In this embodiment, the backup power supply module also includes an energy management system, which is used to monitor the operation status of the equipment in real time and manage its functions. Through real-time monitoring and intelligent management, the energy management system can reduce the need for manual intervention and reduce operation and maintenance costs. At the same time, it can also provide detailed operation data to provide decision support for operation and maintenance personnel, further improving operation and maintenance efficiency.

[0038] In a second aspect, this embodiment further provides a wind turbine backup power supply method, which is implemented by using the wind turbine backup power supply system described in the first aspect, and includes:

[0039] Obtaining battery capacity data of the battery pack, determining whether the battery capacity is greater than a first protection threshold, if the battery capacity is greater than the first protection threshold, the micro fan enters a rest mode, if less than the first protection threshold, the micro fan enters a charging mode to charge the battery pack;

[0040] After the micro fan enters the charging mode, it is determined whether the battery capacity is greater than the second protection threshold. If it is greater than the second protection threshold, the battery pack is fully charged and the micro fan enters the rest mode. If it is not greater than the second protection threshold, it is determined whether the battery capacity is greater than the first protection threshold and the first step is repeated. The wind turbine backup power supply method provided in this embodiment automatically obtains the battery capacity data of the battery pack and controls the working mode (rest mode or charging mode) of the micro fan according to the preset protection thresholds (first protection threshold and second protection threshold). This automated management significantly reduces manual intervention and improves the operating efficiency and reliability of the system. By setting two protection thresholds (first protection threshold and second protection threshold), the system can more finely control the working status of the micro fan and the battery pack to avoid overcharging or over-discharging of the battery, thereby extending the service life of the equipment and improving the overall stability of the system.

[0041] That is, this embodiment provides a backup power supply system, method, equipment, medium and product for a wind turbine. By integrating the communication connection between the micro wind turbine and the main controller of the wind turbine and the load equipment of the cabin system, it is realized that when the power grid is disconnected, the backup power supply is charged by the micro wind turbine, so that the wind turbine can get sufficient backup power supply during hoisting, commissioning and operation. It not only improves the power support capacity of the backup power supply, ensures the power demand and operation safety of the wind turbine in typhoon resistance and various special working conditions, but also significantly reduces the manual charging and operation and maintenance costs, optimizes the overall performance and reliability of the wind turbine, and solves the technical problem that the existing wind power plant backup power supply is mostly powered by diesel generators, which requires regular maintenance and fuel replenishment, and is particularly inconvenient in remote areas or bad weather.

[0042] For the above embodiments, please refer to Figure 3 , Figure 3 A structural diagram of an electronic device provided in an embodiment of the present application, as shown in the figure, includes a processor, an input device, an output device and a memory, the processor, the input device, the output device and the memory are interconnected, wherein the memory is used to store a computer program, the computer program includes program instructions, the processor is configured to call the program instructions, and the above program includes instructions for performing the following steps:

[0043] Acquire product demand information of the user, wherein the product demand information includes function information of the target business product;

[0044] Acquire a functional module group based on a preset product, wherein the functional module group includes at least one functionally independent functional module;

[0045] According to the product requirement information, one or more function modules matching the product requirement information are determined in the function module group, and the target business product is generated based on the one or more function modules.

[0046] In this example, by obtaining the user's product demand information, one or more functional modules matching the product demand information are determined in the functional module group, and the target business product is generated based on the one or more functional modules. Thus, the target business product can be automatically generated through the product demand information, thereby improving the efficiency of determining the target business product.

[0047] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the execution process on the method side. It is understandable that, in order to realize the above functions, the electronic device includes a hardware structure and / or software module corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and algorithm steps of each example described in the embodiments provided herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present application.

[0048] The embodiment of the present application can divide the electronic device into functional units according to the above method example. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional units. It should be noted that the division of units in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0049] An embodiment of the present application also provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of the wind turbine backup power supply method as recorded in the above method embodiment.

[0050] An embodiment of the present application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program enables a computer to execute some or all steps of the wind turbine backup power supply method recorded in the above method embodiment.

[0051] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0052] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0053] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the device or unit can be electrical or other forms.

[0054] 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 on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0055] In addition, the functional units in the various embodiments of the application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware or in the form of software program modules.

[0056] If the integrated unit is implemented in the form of a software program module and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory, including a number of instructions to enable a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, disk or optical disk and other media that can store program codes.

[0057] A person of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable memory, which can include: a flash drive, a read-only memory, a random access memory, a magnetic disk or an optical disk, etc.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A wind turbine backup power supply system, It is characterized in that include: A main controller of a wind turbine set and a load device of a cabin system of the wind turbine set, wherein the main controller of the wind turbine set and the load device of the cabin system of the wind turbine set are communicatively connected; A backup power supply module, the backup power supply module is electrically connected to the load device of the wind turbine cabin system, the backup power supply module includes a battery pack and a backup power supply controller, and the backup power supply module is electrically signal connected to the backup power supply controller; and A micro wind power generation system, wherein the micro wind power generation system is electrically connected to a backup power supply module, and the micro wind power generation system comprises a micro fan and a micro fan controller, and the micro fan and the micro fan controller are electrically signal connected.

2. The wind turbine backup power supply system according to claim 1, It is characterized in that The backup power supply module also includes an energy storage converter, which is used to enable energy conversion and bidirectional flow between the battery pack and the power grid. The energy storage converter is communicatively connected to the main controller of the wind turbine set.

3. The wind turbine backup power supply system according to claim 2, It is characterized in that The energy storage converter includes a DC / AC bidirectional converter and a converter control unit, and the control unit is communicatively connected with the main controller of the wind turbine generator set.

4. The wind turbine backup power supply system according to claim 2, It is characterized in that The energy storage converter is connected to the micro fan controller using the ModbusTCP communication protocol.

5. The wind turbine backup power supply system according to claim 2, It is characterized in that The backup power supply module also includes a battery management unit, which is used to monitor the status of the battery and includes a battery management chip and an embedded microprocessor.

6. The wind turbine backup power supply system according to claim 2, It is characterized in that The backup power supply module also includes an energy management system, which is used to perform real-time monitoring and functional management of the equipment operating status.

7. A method for supplying power to a backup power supply of a wind turbine generator set, It is characterized in that The wind turbine backup power supply system according to claims 1 to 6 is implemented, comprising: Obtaining battery capacity data of the battery pack, determining whether the battery capacity is greater than a first protection threshold, if the battery capacity is greater than the first protection threshold, the micro fan enters a rest mode, if less than the first protection threshold, the micro fan enters a charging mode to charge the battery pack; When the micro fan enters the charging mode, it is determined whether the battery capacity is greater than the second protection threshold. If it is greater than the second protection threshold, the battery pack is fully charged and the micro fan enters the rest mode. If it is not greater than the second protection threshold, it is continued to determine whether the battery capacity is greater than the first protection threshold and the first step is repeated.

8. An electronic device, It is characterized in that It includes a processor, an input device, an output device and a memory, which are interconnected, wherein the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions to execute the wind turbine backup power supply method as described in claim 7.

9. A computer-readable storage medium, It is characterized in that The computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes the wind turbine backup power supply method according to claim 7.

10. A computer program product, It is characterized in that The computer program product comprises a non-transitory computer-readable storage medium storing a computer program, and the computer program enables a computer to execute all steps of the method for supplying power to a wind turbine generator set with a backup power supply as claimed in claim 7.

Images