Wind turbine generator set turning control method, device and system

Abstract

The present disclosure relates to a wind turbine unit disc wheel control method, device and system. The method comprises: in response to receiving a disc wheel indication for a wind turbine unit, obtaining a first operating data set of the wind turbine unit; in the case that the first operating data set meets a first preset condition, determining a disc wheel state in the disc wheel indication; in the case that the disc wheel state is an electric control disc wheel, switching a converter of the wind turbine unit from an operating mode to an electric mode; in response to receiving an indication to stop disc wheel, controlling an absolute encoder to collect a current blade position of a blade wheel in the wind turbine unit; determining whether a current position of a target blade wheel locking hole matches a locking structure according to the current blade position; in the case that the current position of the target blade wheel locking hole matches the locking structure, controlling a brake device to brake the blade wheel, and controlling the locking structure to be inserted into the target blade wheel locking hole. The present scheme improves the disc wheel efficiency of the wind turbine unit.

Description

Technical Field

[0001] This disclosure relates to the field of wind power generation technology, and in particular to a method, device and system for controlling the turning gear of a wind turbine generator set. Background Technology

[0002] In related technologies, due to the force of wind, the rotor of a wind turbine may continue to rotate even when the turbine is stopped, requiring a manual rotation operation, also known as a rotor locking operation. However, traditional manual rotation operations rely solely on manual observation of the locking timing, executing the locking operation only when the opportune moment arrives. But since locking involves accurately inserting the locking mechanism into the locking holes on the rotor to achieve a fixed position, the timing is extremely critical. Relying solely on manual operation makes it easy to miss the precise moment, preventing timely completion of the rotation operation. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a method, device and system for turning control of wind turbine generator sets.

[0004] According to a first aspect of the present disclosure, a method for turning control of a wind turbine generator set is provided, comprising:

[0005] In response to receiving a turning instruction for a wind turbine generator set, the first operating dataset of the wind turbine generator set is obtained;

[0006] If the first running dataset meets the first preset condition, the turning gear status in the turning gear instruction is determined;

[0007] When the turning gear state is electrically controlled turning gear, the converter of the wind turbine generator set is switched from the operating mode to the electric mode so as to control the wind turbine generator set to enter the turning gear state;

[0008] In response to receiving a stop cranking instruction, the absolute encoder is controlled to acquire the current rotor position of the wind turbine generator set;

[0009] Determine whether the current position of the target impeller locking hole matches the locking structure based on the current impeller orientation.

[0010] When the current position of the target impeller locking socket matches the locking structure, the braking device is controlled to stop the impeller, and the locking structure is controlled to be inserted into the target impeller locking socket to lock the impeller.

[0011] In some embodiments of this disclosure, the first operational dataset includes whether the safety chain of the wind turbine is closed, whether the brake is released, the wind speed value, and the rotor speed.

[0012] Determining the turning gear status in the turning gear indication when the first running dataset meets the first preset condition includes:

[0013] When the safety chain is closed, the brake is released, the wind speed is less than or equal to a preset wind speed, and the impeller speed is less than or equal to a first preset speed, it is determined that the first running dataset satisfies the first preset condition.

[0014] Determine the turning state in the turning instruction.

[0015] In some embodiments of this disclosure, prior to obtaining the first operating dataset of the wind turbine in response to receiving a turning instruction for the wind turbine, the method further includes:

[0016] The target impeller orientation is determined for each of the multiple locking holes of the impeller, resulting in multiple target impeller orientations; the target impeller orientation is the orientation of the impeller when the first position of the locking hole matches the second position of the locking structure.

[0017] The step of determining whether the current position of the target impeller locking hole matches the locking structure based on the current impeller orientation includes:

[0018] If the current impeller orientation is the same as any one of the multiple target impeller orientations, then the current position is determined to match the locking structure.

[0019] In some embodiments of this disclosure, the method further includes:

[0020] In response to receiving a counterclockwise rotation instruction, the wind turbine generator set is controlled to rotate counterclockwise.

[0021] In response to receiving a clockwise rotation instruction, the wind turbine generator set is controlled to rotate clockwise.

[0022] In some embodiments of this disclosure, after switching the converter of the wind turbine generator set from the operating mode to the motor mode to control the wind turbine generator set into the turning gear state, the method further includes:

[0023] Obtain the second operating dataset of the wind turbine generator set; the second operating dataset includes the current rotational speed of the rotor, whether the safety chain is broken, whether a brake indication signal is received, and whether the converter is faulty; the converter is the converter corresponding to the wind turbine generator set;

[0024] In the event that the current rotational speed is greater than or equal to the second preset rotational speed, or the safety chain is broken, or a brake indication signal is received, or the converter fails, the wind turbine generator set is controlled to stop turning.

[0025] In some embodiments of this disclosure, the method further includes:

[0026] After receiving the stop turning gear instruction, for a first preset period of time, the converter is controlled to switch from the electric mode to the operating mode, and the grid-side circuit breaker of the converter is controlled to open.

[0027] According to a second aspect of the present disclosure, a turning gear control device for a wind turbine generator set is provided, comprising:

[0028] The acquisition unit is configured to acquire a first operating dataset of the wind turbine generator set in response to receiving a turning instruction for the wind turbine generator set.

[0029] The first determining unit is configured to determine the turning state in the turning instruction when the first running dataset meets the first preset condition;

[0030] The switching unit is used to switch the converter of the wind turbine generator set from the operating mode to the electric mode when the turning gear state is electrically controlled turning gear, so as to control the wind turbine generator set to enter the turning gear state.

[0031] The first control unit is used to control the absolute encoder to collect the current rotor position of the rotor in the wind turbine generator set in response to receiving a stop cranking instruction;

[0032] The second determining unit is used to determine whether the current position of the target impeller locking hole matches the locking structure based on the current impeller orientation.

[0033] The second control unit is configured to, when the current position of the target impeller locking socket matches the locking structure, control the braking device to stop the impeller, and control the locking structure to be inserted into the target impeller locking socket to lock the impeller.

[0034] According to a third aspect of the present disclosure, an electronic device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method as described in any one of the first aspects.

[0035] According to a fourth aspect of the present disclosure, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the method as described in any one of the first aspects.

[0036] According to a fifth aspect of the present disclosure, a computer program product is provided, including a computer program that, when executed by a processor, implements the method as described in any one of the first aspects.

[0037] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: In response to receiving a turning instruction for a wind turbine generator set, a first operating dataset of the wind turbine generator set is obtained; if the first operating dataset satisfies a first preset condition, the turning state in the turning instruction is determined; if the turning state is electrically controlled turning, the converter of the wind turbine generator set is switched from operating mode to electric mode to control the wind turbine generator set into the turning state; in response to receiving a stop turning instruction, an absolute encoder is controlled to collect the current rotor position of the rotor in the wind turbine generator set; based on the current rotor position, it is determined whether the current position of the target rotor locking socket matches the locking structure; if the current position of the target rotor locking socket matches the locking structure, a braking device is controlled to stop the rotor, and the locking structure is controlled to be inserted into the target rotor locking socket to lock the rotor. By accurately positioning the rotor using an absolute encoder, the timing for inserting the locking structure into the target rotor locking socket can be accurately grasped, thereby enabling timely locking of the rotor and improving turning efficiency.

[0038] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0039] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0040] Figure 1 This is a flowchart illustrating a turning control method for a wind turbine generator set according to an exemplary embodiment.

[0041] Figure 2 This is a block diagram illustrating a turning control device for a wind turbine generator set according to an exemplary embodiment.

[0042] Figure 3 This is a block diagram illustrating an apparatus for a turning gear control method for a wind turbine generator set according to an exemplary embodiment. Detailed Implementation

[0043] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0044] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0045] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the words “if” and “suppose” as used herein may be interpreted as “when”, “when”, or “in response to a determination”.

[0046] Furthermore, various forms of processes shown in the embodiments of this disclosure can be used to reorder, add, or delete steps. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this disclosure can be achieved, and no limitation is imposed herein.

[0047] In related technologies, due to the force of wind, the rotor of a wind turbine may continue to rotate even when the turbine is stopped, requiring a manual rotation operation, also known as a rotor locking operation. However, traditional manual rotation operations rely solely on manual observation of the locking timing, executing the locking operation only when the opportune moment arrives. But since locking involves accurately inserting the locking mechanism into the locking holes on the rotor to achieve a fixed position, the timing is extremely critical. Relying solely on manual operation makes it easy to miss the precise moment, preventing timely completion of the rotation operation.

[0048] To address the aforementioned issues, this disclosure provides a method, apparatus, and system for controlling the turning gear of a wind turbine generator set. The method involves: upon receiving a turning gear instruction for the wind turbine generator set, acquiring a first operating dataset of the wind turbine generator set; if the first operating dataset satisfies a first preset condition, determining the turning gear state in the turning gear instruction; if the turning gear state is electrically controlled turning gear, switching the converter of the wind turbine generator set from operating mode to electric mode to control the wind turbine generator set into the turning gear state; upon receiving a stop turning gear instruction, controlling an absolute encoder to acquire the current rotor orientation of the rotor in the wind turbine generator set; determining whether the current position of the target rotor locking socket matches the locking structure based on the current rotor orientation; if the current position of the target rotor locking socket matches the locking structure, controlling a braking device to stop the rotor and controlling the locking structure to insert into the target rotor locking socket to lock the rotor. By using an absolute positioner to precisely position the impeller, the timing for inserting the locking mechanism into the target impeller locking hole can be accurately determined, thereby enabling timely locking of the impeller and improving the turning efficiency.

[0049] Figure 1 This is a flowchart illustrating a turning control method for a wind turbine generator set according to an exemplary embodiment, such as... Figure 1 As shown, it should be noted that the wind turbine turning control method of this disclosure is applied in a wind turbine turning control device. For example... Figure 1 As shown, the method may include the following steps:

[0050] Step 101: In response to receiving a turning instruction for the wind turbine generator set, obtain the first operating dataset of the wind turbine generator set.

[0051] It should be noted that "rotating control" refers to controlling the rotation of the impeller when the wind turbine generator is stopped, and locking the impeller at the impeller lock position.

[0052] In one embodiment, the first operational dataset includes various operational data associated with the operational status of the wind turbine generator set.

[0053] As an example, before performing electric turning operations, the maintenance switch on the tower base cabinet corresponding to the wind turbine generator can be switched to maintenance mode; otherwise, the main control module will not respond to the turning operation.

[0054] Step 102: If the first running dataset meets the first preset condition, determine the turning gear status in the turning gear instruction.

[0055] In some embodiments of this disclosure, the first operating dataset includes whether the safety chain of the wind turbine generator is closed, whether the brake is released, the wind speed value, and the rotor speed. Step 102 may specifically include the following steps: when the safety chain is closed, the brake is released, the wind speed value is less than or equal to a preset wind speed, and the rotor speed is less than or equal to a first preset speed, determine that the first operating dataset meets the first preset condition; determine the turning state in the turning indicator.

[0056] Understandably, if the first running dataset meets the first preset condition, it means that the current running status can meet the requirements of the manual check. In this case, the manual check can be performed automatically without relying on manual confirmation.

[0057] For example, when the turning gear is in the electric turning gear state, the HMI screen of the tower base cabinet can display the unit status as "electric turning gear". After entering the "electric turning gear" state, the converter "operating mode" is set to 1 to switch to electric mode. If the converter is not faulty and the unit brake is released, the safety chain is closed, and the impeller speed is less than 50 rpm, the pull-in frame will break (that is, the control circuit will be disconnected).

[0058] Step 103: When the turning gear is in the electric turning gear state, switch the converter of the wind turbine generator set from the operating mode to the electric mode so as to control the wind turbine generator set to enter the turning gear state.

[0059] It should be noted that the traditional turning method relies on wind power to drive the rotor to rotate. However, in this method, when the wind is weak, there is no power and the rotor cannot be turned. When the wind is strong, the rotor rotates too fast, making it difficult to determine the timing of braking and locking the rotor in time, which causes maintenance difficulties. Therefore, this disclosure uses a converter to control the rotation of the wind turbine generator set to improve the controllability of the rotor rotation and thus improve the turning efficiency.

[0060] In one embodiment, when the turning gear state is electrically controlled turning gear, the converter of the wind turbine generator set switches from the operating mode to the electric mode to control the wind turbine generator set to enter the turning gear state.

[0061] It is understandable that the above operating mode refers to the wind turbine converting wind energy into electrical energy to supply power to the grid, while the above electric mode refers to the grid supplying power to the wind turbine through a converter, thereby providing a power source for the rotor rotation.

[0062] In some embodiments of this disclosure, the turning gear speed (generator speed) can be preset to 20 rpm, and can be reset on the human-machine interface (HMI). The allowable speed range of the electric turning gear (generator speed) is 20 to 50 rpm, and the default speed is 20 rpm (the minimum allowable speed), which can be modified through the HMI screen.

[0063] In some embodiments of this disclosure, the following steps may be included after step 103:

[0064] Obtain the second operating dataset of the wind turbine generator set; the second operating dataset includes the current speed of the rotor, whether the safety chain is broken, whether a brake indication signal is received, and whether the converter is faulty; the converter is the converter corresponding to the wind turbine generator set;

[0065] If the current speed is greater than or equal to the second preset speed, or the safety chain is broken, or a brake indication signal is received, or the converter fails, the wind turbine generator set will be controlled to stop turning.

[0066] It is understandable that some unexpected situations may occur during the turning process, causing the current operating state to no longer be suitable for turning. The turning operation should be stopped in time to ensure the normal operation of the equipment.

[0067] For example, during the turning process, if the impeller speed exceeds 250 rpm, the safety chain breaks, the brake feedback signal is valid, or the converter malfunctions, the turning process will automatically stop.

[0068] Step 104: In response to receiving the instruction to stop the turning gear, control the absolute encoder to acquire the current rotor position of the wind turbine generator set.

[0069] Understandably, absolute encoders, due to their absolute uniqueness at each position, interference resistance, and lack of power-off memory, are increasingly widely used in angle, length measurement, and positioning control in various industrial systems. An absolute encoder's code disk has many etched lines, each arranged sequentially with 2, 4, 8, or 16 lines. At each position of the encoder, by reading the on / off state of each etched line, a unique binary code (Gray code) from 2^0 to 2^(n-1) is obtained; this is called an n-bit absolute encoder. Such an encoder is determined by the mechanical position of the code disk and is unaffected by power outages or interference.

[0070] Therefore, an absolute encoder can be used to determine the current impeller orientation (i.e., the impeller's rotational position).

[0071] Step 105: Determine whether the current position of the target impeller locking hole matches the locking structure based on the current impeller orientation.

[0072] It should be noted that the aforementioned target impeller locking socket refers to the impeller locking socket closest to the locking structure along the impeller rotation direction.

[0073] In one embodiment, whether the current position of the target impeller locking socket matches the locking structure means whether the current position of the target impeller locking socket is aligned with the locking structure, that is, whether the locking structure can be smoothly inserted into the target impeller locking socket.

[0074] In some embodiments of this disclosure, the following steps may be included prior to step 101:

[0075] The target impeller orientation is determined for each of the multiple locking holes of the impeller, resulting in multiple target impeller orientations. The target impeller orientation is the orientation of the impeller when the first position of the locking hole matches the second position of the locking structure.

[0076] Step 105 may specifically include: if the current impeller orientation is the same as any one of the multiple target impeller orientations, determine that the current position matches the locking structure.

[0077] For example, during the rotation of the turbine, the current rotor position can be indicated by the absolute encoder installed on the wind turbine (the hub locking position is calibrated when the absolute encoder is installed). When the lockable rotor position is reached, the variable "lockable" is set to TRUE on the human-machine interface.

[0078] Step 106: When the current position of the target impeller locking socket matches the locking structure, control the braking device to stop the impeller and control the locking structure to be inserted into the target impeller locking socket to lock the impeller.

[0079] For example, if the current position of the target impeller locking socket matches the locking structure, turn the turning gear switch to the middle position to stop turning the gear. At the same time, if the wind speed is within the maintainable wind speed range, the mechanical brake will be engaged to stop the impeller at the current position, and the impeller can be locked quickly.

[0080] In one embodiment, the locking structure can be manually inserted into the target impeller locking socket, or the locking structure can be controlled to be inserted into the target impeller locking socket by a retractable device connected to the locking structure.

[0081] In some embodiments of this disclosure, after step 106, the method may further include:

[0082] After receiving the stop turning gear instruction, the control converter switches from motor mode to operating mode within a first preset time period, and the grid-side circuit breaker of the control converter is opened.

[0083] For example, after the turning gear stops (i.e., the turning gear switch is in the middle position) for 5 minutes, the main control will automatically switch the converter's operating mode from motor mode back to operating mode and disconnect the converter's grid-side circuit breaker, returning it to normal unit maintenance status.

[0084] In some embodiments of this disclosure, the method may further include:

[0085] In response to receiving a counterclockwise turning instruction, the wind turbine generator is controlled to turn counterclockwise.

[0086] In response to receiving a clockwise turning instruction, the wind turbine generator is controlled to turn clockwise.

[0087] In one embodiment, the operation can be performed via a turning gear switch inside the engine compartment. When the switch is in the middle position, the turning gear operation is stopped. When switched to the left position, the turning gear starts to turn counterclockwise. When switched to the right position, the turning gear starts to turn clockwise.

[0088] According to the wind turbine generator turning control method proposed in this disclosure, in response to receiving a turning instruction for the wind turbine generator, a first operating dataset of the wind turbine generator is obtained; if the first operating dataset meets a first preset condition, the turning state in the turning instruction is determined; if the turning state is electric turning, the converter of the wind turbine generator is switched from operating mode to electric mode to control the wind turbine generator to enter the turning state; in response to receiving a stop turning instruction, an absolute encoder is controlled to collect the current rotor position of the rotor in the wind turbine generator; based on the current rotor position, it is determined whether the current position of the target rotor locking socket matches the locking structure; if the current position of the target rotor locking socket matches the locking structure, a braking device is controlled to stop the rotor, and the locking structure is controlled to insert into the target rotor locking socket to lock the rotor. By accurately positioning the rotor using an absolute encoder, the timing for inserting the locking structure into the target rotor locking socket can be accurately grasped, thereby enabling timely locking of the rotor and improving turning efficiency.

[0089] Figure 2 This is a block diagram illustrating a turning gear control device for a wind turbine generator set according to an exemplary embodiment. (Refer to...) Figure 2 The device includes an acquisition unit 201, a first determination unit 202, a switching unit 203, a first control unit 204, a second determination unit 205, and a second control unit 206.

[0090] The acquisition unit 201 is used to acquire the first operating dataset of the wind turbine generator set in response to receiving a turning instruction for the wind turbine generator set.

[0091] The first determining unit 202 is used to determine the barring state in the barring instruction when the first running dataset meets the first preset condition;

[0092] The switching unit 203 is used to switch the converter of the wind turbine generator set from the operating mode to the electric mode when the turning gear state is electrically controlled turning gear, so as to control the wind turbine generator set to enter the turning gear state.

[0093] The first control unit 204 is used to control the absolute encoder to acquire the current rotor position of the rotor in the wind turbine generator set in response to receiving an instruction to stop the turning gear;

[0094] The second determining unit 205 is used to determine whether the current position of the target impeller locking hole matches the locking structure based on the current impeller orientation.

[0095] The second control unit 206 is used to control the braking device to stop the impeller when the current position of the target impeller locking socket matches the locking structure, and to control the locking structure to be inserted into the target impeller locking socket to lock the impeller.

[0096] In some embodiments of this disclosure, the first operating dataset includes whether the safety chain of the wind turbine is closed, whether the brake is released, the wind speed value, and the rotor speed. The switching unit 203 can specifically be used for:

[0097] When the safety chain is closed, the brake is released, the wind speed is less than or equal to the preset wind speed, and the impeller speed is less than or equal to the first preset speed, the first running dataset is determined to meet the first preset condition.

[0098] Determine the turning gear status in the turning gear instruction.

[0099] In some embodiments of this disclosure, the apparatus may further include:

[0100] The third determining unit is used to determine the target impeller orientation corresponding to each of the multiple locking holes of the impeller, thereby obtaining multiple target impeller orientations; the target impeller orientation is the orientation of the impeller when the first position of the locking hole matches the second position of the locking structure.

[0101] The second determining unit 205 can be specifically used to: determine the current position and match the locking structure when the current impeller orientation is the same as any one of the multiple target impeller orientations.

[0102] In some embodiments of this disclosure, the apparatus may further include:

[0103] The third control unit is used to control the wind turbine generator to rotate in a counterclockwise direction in response to receiving a counterclockwise rotation instruction.

[0104] The fourth control unit is used to control the wind turbine generator to rotate clockwise in response to receiving a clockwise rotation instruction.

[0105] In some embodiments of this disclosure, the apparatus may further include:

[0106] The acquisition unit is also used to acquire a second operating dataset of the wind turbine generator set; the second operating dataset includes the current speed of the rotor, whether the safety chain is broken, whether a brake indication signal is received, and whether the converter is faulty; the converter is the converter corresponding to the wind turbine generator set.

[0107] The fifth control unit is used to control the wind turbine generator to stop turning when the current speed is greater than or equal to the second preset speed, or the safety chain is broken, or a brake indication signal is received, or the converter fails.

[0108] In some embodiments of this disclosure, the apparatus may further include:

[0109] The sixth control unit is used to control the converter to switch from electric mode to operating mode and to control the grid-side circuit breaker of the converter to open after a first preset time period following receiving a stop turning gear instruction.

[0110] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0111] According to the wind turbine generator turning control device proposed in this disclosure, in response to receiving a turning instruction for the wind turbine generator, the device acquires a first operating dataset of the wind turbine generator; if the first operating dataset meets a first preset condition, it determines the turning state in the turning instruction; if the turning state is electric turning, it switches the converter of the wind turbine generator from the operating mode to the electric mode to control the wind turbine generator to enter the turning state; in response to receiving a stop turning instruction, it controls an absolute encoder to acquire the current rotor position of the rotor in the wind turbine generator; based on the current rotor position, it determines whether the current position of the target rotor locking socket matches the locking structure; if the current position of the target rotor locking socket matches the locking structure, it controls a braking device to stop the rotor and controls the locking structure to be inserted into the target rotor locking socket to lock the rotor. By accurately positioning the rotor using an absolute encoder, the device can accurately grasp the timing of inserting the locking structure into the target rotor locking socket, thereby enabling timely locking of the rotor and improving turning efficiency.

[0112] Figure 3This is a block diagram illustrating an apparatus for a turning gear control method for a wind turbine generator set according to an exemplary embodiment. For example, apparatus 300 may be an electronic device, such as a programmable logic controller (PLC) or a computer.

[0113] Reference Figure 3 The device 300 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, sensor component 314, and communication component 316.

[0114] Processing component 302 typically controls the overall operation of device 300, such as display and data communication. Processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 302 may include one or more modules to facilitate interaction between processing component 302 and other components. For example, processing component 302 may include a multimedia module to facilitate interaction between multimedia component 308 and processing component 302.

[0115] Memory 304 is configured to store various types of data to support operation on device 300. Examples of this data include instructions for any application or method operating on device 300. Memory 304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, or flash memory.

[0116] The power supply component 306 provides power to the various components of the device 300. The power supply component 306 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 300.

[0117] Multimedia component 308 includes a screen that provides an output interface between the device 300 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation.

[0118] Sensor assembly 314 includes one or more sensors for providing condition assessments of various aspects of device 300. For example, sensor assembly 314 may include an absolute encoder for assessing impeller orientation and impeller rotation speed, and may also include an anemometer for assessing wind speed, etc. In addition, it may include other sensors for wind turbines, such as vibration sensors, incremental encoders, anemometer vanes, temperature sensors, and pressure sensors.

[0119] The communication component 316 is configured to facilitate wired or wireless communication between the device 300 and other devices. For example, industrial buses such as Modbus-TCP, Modbus-RTU, CANopen, and PROFIBUS can be used to implement network communication for the wind turbine.

[0120] In an exemplary embodiment, the apparatus 300 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0121] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 304 including instructions, which can be executed by a processor 320 of the device 300 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0122] In an exemplary embodiment, a computer program product is also provided, including a computer program that implements the above-described method when executed by the processor 320 of the device 300.

[0123] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0124] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A wind turbine generator system's turning pad control method, characterized by, The method comprises: obtaining a first operating data set of the wind turbine in response to receiving a cranking instruction for the wind turbine; determining a cranking state in the cranking instruction in a case where the first operating data set meets a first preset condition; switching a converter of the wind turbine from an operating mode to a motor mode to control the wind turbine to enter the cranking state in a case where the cranking state is an electrically controlled cranking; controlling an absolute encoder to collect a current blade position of a rotor of the wind turbine in response to receiving an instruction to stop cranking; determining whether a current position of a target rotor locking hole matches a locking structure according to the current blade position; controlling a brake device to brake the rotor and controlling the locking structure to be inserted into the target rotor locking hole to lock the rotor in a case where the current position of the target rotor locking hole matches the locking structure; wherein the first operating data set comprises whether a safety chain of the wind turbine is closed, whether a brake is released, a wind speed value, and a rotor speed; the determining the cranking state in the cranking instruction in the case where the first operating data set meets the first preset condition comprises: determining that the first operating data set meets the first preset condition in a case where the safety chain is closed, the brake is released, the wind speed value is less than or equal to a preset wind speed, and the rotor speed is less than or equal to a first preset rotor speed; determining the cranking state in the cranking instruction; wherein, before the obtaining the first operating data set of the wind turbine in response to receiving the cranking instruction for the wind turbine, the method further comprises: determining a target blade position corresponding to each locking hole of the rotor to obtain a plurality of target blade positions; the target blade position is a position of the rotor in a case where a first position of the locking hole matches a second position of the locking structure; the determining whether the current position of the target rotor locking hole matches the locking structure according to the current blade position comprises: determining that the current position matches the locking structure in a case where the current blade position is the same as any one of the plurality of target blade positions.

2. The wind turbine generator system equalization control method according to claim 1, characterized by, The method further comprises: controlling the wind turbine to crank in a counterclockwise direction in response to receiving a counterclockwise cranking instruction; controlling the wind turbine to crank in a clockwise direction in response to receiving a clockwise cranking instruction.

3. The wind turbine generator system equalization control method according to claim 1, characterized by, after the switching the converter of the wind turbine from the operating mode to the motor mode to control the wind turbine to enter the cranking state, the method further comprises: obtaining a second operating data set of the wind turbine; the second operating data set comprises a current rotor speed of the rotor, whether the safety chain is disconnected, whether a brake instruction signal is received, and whether the converter is faulty; the converter is a converter corresponding to the wind turbine. In a case that the current rotating speed is greater than or equal to a second preset rotating speed, or the safety chain is disconnected, or a brake instruction signal is received, or the converter fails, the wind turbine generator set is controlled to stop the turning.

4. The wind turbine generator system equalization control method according to claim 1, characterized by, Also included are: After a first preset time period after the turning stop instruction is received, the converter is controlled to switch from the motoring mode to the operating mode, and a grid-side circuit breaker of the converter is controlled to be disconnected.

5. A wind turbine control device for controlling the shutdown of a wind turbine, characterized in that The method of any one of claims 1-4, comprising: an acquisition unit configured to, in response to receiving a turning instruction for a wind turbine generator set, acquire a first operating data set of the wind turbine generator set; a first determination unit configured to, in a case that the first operating data set satisfies a first preset condition, determine a turning state in the turning instruction; a switching unit configured to, in a case that the turning state is electric control turning, switch a converter of the wind turbine generator set from an operating mode to a motoring mode, so as to control the wind turbine generator set to enter a turning state; a first control unit configured to, in response to receiving an instruction to stop turning, control an absolute encoder to acquire a current impeller orientation of an impeller in the wind turbine generator set; a second determination unit configured to determine whether a current position of a target impeller locking hole matches a locking structure according to the current impeller orientation; a second control unit configured to, in a case that the current position of the target impeller locking hole matches the locking structure, control a brake device to brake the impeller, and control the locking structure to be inserted into the target impeller locking hole to lock the impeller.

6. An electronic device, comprising: comprise: a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the method of any one of claims 1-4 is implemented.

7. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the method of any one of claims 1-4.

8. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the method of any one of claims 1-4.

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