Turning control method, device and system for wind generating set

Abstract

The invention relates to a barring control method, device and system for a wind generating set. The method comprises the following steps: in response to a received turning instruction for the wind generating set, obtaining a first operation data set of the wind generating set; under the condition that the first operation data set meets a first preset condition, determining a turning state in the turning indication; under the condition that the barring state is the electric control barring state, a converter of the wind generating set is switched to an electric mode from an operation mode; in response to the received instruction of stopping turning, controlling an absolute encoder to collect the current impeller orientation of an impeller in the wind generating set; whether the current position of the target impeller locking insertion hole is matched with the locking structure or not is determined according to the current impeller direction; and under the condition that the current position of the target impeller locking insertion hole is matched with the locking structure, the brake device is controlled to brake the impeller, and the locking structure is controlled to be inserted into the target impeller locking insertion hole. According to the scheme, the turning efficiency of the wind generating set is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wind power generation, and in particular to a method, device and system for controlling a cranking gear of a wind power generator set. Background Art

[0002] In the related art, due to the effect of wind force, the impeller of the wind turbine generator set will still rotate even when it is stopped, and it is necessary to perform a cranking operation on the wind turbine generator set, that is, to lock the impeller. However, the traditional cranking operation only relies on manual observation of the locking timing and performs the locking operation when the locking timing comes. However, since the locking is to accurately insert the locking structure into the locking socket of the impeller to achieve the fixing effect, the control of the timing is very strict. It is easy to miss the accurate timing and fail to complete the cranking work in time if it only relies on manual operation. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a method, device and system for controlling a cranking of a wind turbine generator set.

[0004] According to a first aspect of an embodiment of the present disclosure, a method for controlling a cranking gear of a wind turbine generator set is provided, comprising:

[0005] In response to receiving a cranking instruction for a wind turbine generator set, acquiring a first operating data set of the wind turbine generator set;

[0006] In the case where the first operating data set satisfies a first preset condition, determining a cranking state in the cranking indication;

[0007] When the cranking state is the electric-controlled cranking state, switching the converter of the wind turbine generator set from the running mode to the electric mode, so as to control the wind turbine generator set to enter the cranking state;

[0008] In response to receiving an instruction to stop cranking, controlling an absolute encoder to collect a current impeller position of an impeller in the wind turbine generator set;

[0009] Determining whether a current position of a target impeller locking socket matches a locking structure according to the current impeller orientation;

[0010] When the current position of the target impeller locking socket matches the locking structure, the brake 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 the present disclosure, the first operating data set includes whether the safety chain of the wind turbine generator set is closed, whether the brake is released, the wind speed value, and the rotor speed;

[0012] The step of determining the cranking state in the cranking indication when the first operating data set satisfies a first preset condition includes:

[0013] When the safety chain is closed, the brake is released, the wind speed value is less than or equal to the preset wind speed, and the impeller speed is less than or equal to the first preset speed, determining that the first operating data set meets the first preset condition;

[0014] A cranking state in the cranking indication is determined.

[0015] In some embodiments of the present disclosure, before acquiring the first operating data set of the wind turbine generator set in response to receiving a cranking instruction for the wind turbine generator set, the method further includes:

[0016] Determine the target impeller orientation corresponding to each of the multiple locking sockets of the impeller respectively, and obtain multiple target impeller orientations; the target impeller orientation is the orientation of the impeller when the first position of the locking socket matches the second position of the locking structure;

[0017] The determining, according to the current impeller orientation, whether the current position of the target impeller locking socket matches the locking structure comprises:

[0018] In a case where the current impeller orientation is the same as any one of the plurality of target impeller orientations, it is determined that the current position matches the locking structure.

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

[0020] In response to receiving the counterclockwise cranking instruction, controlling the wind turbine generator set to crank in a counterclockwise direction;

[0021] In response to receiving the clockwise cranking instruction, the wind turbine generator set is controlled to crank in a clockwise direction.

[0022] In some embodiments of the present disclosure, after switching the converter of the wind turbine generator set from the running mode to the motor mode so as to control the wind turbine generator set to enter the cranking state, the method further includes:

[0023] Acquire a second operating data set of the wind turbine generator set; the second operating data set includes the current rotation speed of the impeller, whether the safety chain is disconnected, whether a brake indication signal is received, and whether the converter is faulty; the converter is a converter corresponding to the wind turbine generator set;

[0024] When the current rotation speed is greater than or equal to a second preset rotation 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 cranking.

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

[0026] After a first preset time period after receiving the cranking stop instruction, 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 be disconnected.

[0027] According to a second aspect of an embodiment of the present disclosure, there is provided a wind turbine generator cranking control device, comprising:

[0028] an acquisition unit, configured to acquire a first operating data set of the wind turbine generator set in response to receiving a cranking instruction for the wind turbine generator set;

[0029] A first determining unit, configured to determine a cranking state in the cranking indication when the first operating data set satisfies a first preset condition;

[0030] A switching unit, used for switching the converter of the wind turbine generator set from the running mode to the electric mode when the cranking state is the electric-controlled cranking state, so as to control the wind turbine generator set to enter the cranking state;

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

[0032] a second determination unit, configured to determine whether a current position of a target impeller locking socket matches a locking structure according to the current impeller orientation;

[0033] The second control unit is used to control the braking device to brake the impeller when the current position of the target impeller locking socket matches the locking structure, 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 an embodiment 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 when the processor executes the computer program, the method described in any one of the first aspects is implemented.

[0035] According to a fourth aspect of an embodiment of the present disclosure, there is provided a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the method according to any one of the first aspects is implemented.

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

[0037] The technical solution provided by the embodiment of the present disclosure may include the following beneficial effects: by responding to receiving a cranking instruction for a wind turbine generator set, obtaining a first operating data set of the wind turbine generator set; when the first operating data set meets a first preset condition, determining the cranking state in the cranking instruction; when the cranking state is an electric-controlled cranking, switching the converter of the wind turbine generator set from an operating mode to an electric mode, so as to control the wind turbine generator set to enter a cranking state; in response to receiving an instruction to stop the cranking, controlling the absolute encoder to collect the current impeller position of the impeller in the wind turbine generator set; determining whether the current position of the target impeller locking socket matches the locking structure according to the current impeller position; when the current position of the target impeller locking socket matches the locking structure, controlling the brake device to stop the impeller, and controlling the locking structure to be inserted into the target impeller locking socket to lock the impeller. The impeller is accurately positioned by the absolute encoder, so that the timing of inserting the locking structure into the target impeller locking socket can be accurately grasped, so that the impeller can be locked in time, thereby improving the cranking efficiency.

[0038] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings, which are incorporated in and constitute a 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 The present invention is a flow chart showing a method for controlling a cranking gear of a wind turbine generator set according to an exemplary embodiment.

[0041] Figure 2 The present invention is a block diagram of a wind turbine generator cranking control device according to an exemplary embodiment.

[0042] Figure 3 The invention is a block diagram showing a device for a method for controlling a cranking gear of a wind turbine generator set according to an exemplary embodiment. DETAILED DESCRIPTION

[0043] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0044] The terms used in the disclosed embodiments are only for the purpose of describing specific embodiments, and are not intended to limit the disclosed embodiments. The singular forms "a", "an" and "the" used in the disclosed embodiments and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

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

[0046] In addition, various forms of processes shown in the embodiments of the present disclosure may be used to reorder, add or delete steps. For example, the steps described in the present application may be performed in parallel, sequentially or in different orders, as long as the desired results of the technical solution disclosed in the present disclosure can be achieved, and this document does not limit this.

[0047] In the related art, due to the effect of wind force, the impeller of the wind turbine generator set will still rotate even when it is stopped, and it is necessary to perform a cranking operation on the wind turbine generator set, that is, to lock the impeller. However, the traditional cranking operation only relies on manual observation of the locking timing and performs the locking operation when the locking timing comes. However, since the locking is to accurately insert the locking structure into the locking socket of the impeller to achieve the fixing effect, the control of the timing is very strict. It is easy to miss the accurate timing and fail to complete the cranking work in time if it only relies on manual operation.

[0048] In order to solve the above problems, the present disclosure provides a method, device and system for controlling a cranking of a wind turbine generator set, which obtains a first operating data set of the wind turbine generator set in response to receiving a cranking indication for the wind turbine generator set; determines the cranking state in the cranking indication when the first operating data set meets a first preset condition; when the cranking state is an electric-controlled cranking, switches the converter of the wind turbine generator set from an operating mode to an electric mode to control the wind turbine generator set to enter a cranking state; in response to receiving an indication to stop cranking, controls an absolute encoder to collect a current impeller position of an impeller in the wind turbine generator set; determines whether a current position of a target impeller locking socket matches a locking structure according to the current impeller position; controls a braking device to brake the impeller when the current position of the target impeller locking socket matches the locking structure, and controls the locking structure to be inserted into the target impeller locking socket to lock the impeller. The impeller is precisely positioned through an absolute device, so that the timing of inserting the locking structure into the locking socket of the target impeller can be accurately grasped, so that the impeller can be locked in time, thereby improving the turning efficiency.

[0049] Figure 1 is a flow chart of a method for controlling a cranking of a wind turbine generator set according to an exemplary embodiment. Figure 1 As shown, it should be noted that the wind turbine generator cranking control method of the embodiment of the present disclosure is applied to the wind turbine generator cranking control device. Figure 1 As shown, the method may include the following steps:

[0050] Step 101: in response to receiving a cranking instruction for a wind turbine generator set, obtaining a first operating data set of the wind turbine generator set.

[0051] It should be noted that turning the wheel refers to the action of controlling the rotation of the impeller when the wind turbine generator set is shut down, and locking the impeller when the impeller lock position is reached.

[0052] In one embodiment, the first operating data set includes a variety of operating data associated with the operating status of the wind turbine generator set.

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

[0054] Step 102: when the first operating data set meets a first preset condition, determining a cranking state in a cranking indication.

[0055] In some embodiments of the present disclosure, the first operating data set includes whether the safety chain of the wind turbine generator set is closed, whether the brake is released, the wind speed value and the impeller 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 the preset wind speed, and the impeller speed is less than or equal to the first preset speed, determine that the first operating data set satisfies the first preset condition; determine the cranking status in the cranking indication.

[0056] It can be understood that when the first operating data set meets the first preset condition, it means that the current operating state can meet the cranking requirement. In this case, the cranking operation can be performed automatically without relying on manual confirmation one by one.

[0057] For example, when the cranking state is electric control cranking, the HMI screen of the tower base cabinet can display the unit state as "electric cranking". After entering the "electric cranking" state, set the "operating mode" of the converter to 1 and switch to electric mode. If the converter has no faults and the unit brake is released, the safety chain is closed, and the impeller speed is less than 50rpm, the suction frame is disconnected (that is, the control circuit is disconnected).

[0058] Step 103 , when the cranking state is the electric-controlled cranking state, switching the converter of the wind turbine generator set from the running mode to the electric mode, so as to control the wind turbine generator set to enter the cranking state.

[0059] It should be noted that the traditional method of turning the wind turbine relies on wind power to drive the impeller to rotate. However, under this method, when the wind is light, there is no power and the turbine cannot be turned. When the wind is strong, the impeller rotates slightly faster, and it is not easy to determine the timing of braking and locking the impeller in time, resulting in maintenance difficulties. Therefore, the present invention adopts an inverter to control the rotation of the wind turbine generator set to improve the controllability of the impeller rotation, thereby improving the turning efficiency.

[0060] In one embodiment, when the cranking state is the electrically controlled cranking state, 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 cranking 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, and the above electric mode refers to the grid reversely supplying power to the wind turbine through the converter, thereby providing a power source for the rotation of the impeller.

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

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

[0064] Acquire a second operating data set of the wind turbine generator set; the second operating data set includes the current rotation speed of the impeller, whether the safety chain is disconnected, whether a brake indication signal is received, and whether the converter is faulty; the converter is a converter corresponding to the wind turbine generator set;

[0065] When the current rotation speed is greater than or equal to the second preset rotation 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 cranking.

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

[0067] For example, during the cranking process, if the impeller speed is greater than 250rpm or the safety chain is disconnected or the brake feedback signal is valid or the converter fails, the cranking will be automatically stopped.

[0068] Step 104 , in response to receiving the instruction to stop cranking, controlling the absolute encoder to collect the current impeller position of the impeller in the wind turbine generator set.

[0069] It is understandable that absolute encoders have been increasingly widely used in angle, length measurement and positioning control in various industrial systems because of their unique position, anti-interference and no need for power-off memory. There are many engraved lines on the absolute encoder optical code disk, and each engraved line is arranged in 2 lines, 4 lines, 8 lines, 16 lines, etc. At each position of the encoder, by reading the pass and dark of each engraved line, a set of unique binary codes (Gray code) from 2 to the power of zero to 2 to the power of n-1 is obtained, which is called an n-bit absolute encoder. Such an encoder is determined by the mechanical position of the code disk and is not affected by power outages or interference.

[0070] Therefore, an absolute encoder may be used to determine the current impeller position of the impeller (ie, the rotational position of the impeller).

[0071] Step 105, determining whether the current position of the target impeller locking socket matches the locking structure according to the current impeller orientation.

[0072] It should be noted that the above-mentioned target impeller locking socket refers to an impeller locking socket that is 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 refers to whether the current position of the target impeller locking socket has been 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 the present disclosure, the following steps may be included before step 101:

[0075] Determine the target impeller orientation corresponding to each of the multiple locking sockets of the impeller respectively, and obtain multiple target impeller orientations; the target impeller orientation is the orientation of the impeller when the first position of the locking socket matches the second position of the locking structure;

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

[0077] For example, when turning the turbine, the current wind 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 impeller 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 brake 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, when the current position of the target impeller locking socket matches the locking structure, turn the cranking switch to the middle position to stop the cranking. At the same time, if the wind speed is within the maintainable wind speed range, the mechanical brake is engaged to stop the wind wheel at the current position, at which time the wind wheel can be quickly locked.

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

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

[0082] After a first preset time period after receiving the instruction to stop cranking, the converter is controlled to switch from the motoring mode to the operating mode, and the grid-side circuit breaker of the converter is controlled to be disconnected.

[0083] For example, 5 minutes after stopping the cranking (that is, the cranking switch is in the middle position), the main control automatically switches the operating mode of the inverter from the electric mode to the operating mode, disconnects the grid-side circuit breaker of the inverter, and returns to the normal unit maintenance state.

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

[0085] In response to receiving the counterclockwise cranking instruction, controlling the wind turbine generator set to crank in a counterclockwise direction;

[0086] In response to receiving the clockwise cranking instruction, the wind turbine generator set is controlled to crank in a clockwise direction.

[0087] In one embodiment, the operation can be performed through a cranking switch in the cabin cabinet. When the switch is in the middle position, it indicates that the cranking operation stops. When it is switched to the left position, counterclockwise cranking starts. When it is switched to the right position, clockwise cranking starts.

[0088] According to the wind turbine generator set cranking control method proposed in the embodiment of the present disclosure, in response to receiving a cranking instruction for the wind turbine generator set, a first operating data set of the wind turbine generator set is obtained; when the first operating data set meets the first preset condition, the cranking state in the cranking instruction is determined; when the cranking state is the electric control cranking, the converter of the wind turbine generator set is switched from the operating mode to the electric mode to control the wind turbine generator set to enter the cranking state; in response to receiving an instruction to stop the cranking, the absolute encoder is controlled to collect the current impeller position of the impeller in the wind turbine generator set; according to the current impeller position, whether the current position of the target impeller locking socket matches the locking structure; when the current position of the target impeller locking socket matches the locking structure, the brake 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. The impeller is accurately positioned by the absolute encoder, so that the timing of inserting the locking structure into the target impeller locking socket can be accurately grasped, so that the impeller can be locked in time, thereby improving the cranking efficiency.

[0089] Figure 2 FIG. 1 is a block diagram of a wind turbine generator cranking control device according to an exemplary embodiment. 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 a first operating data set of the wind turbine generator set in response to receiving a cranking instruction for the wind turbine generator set;

[0091] A first determining unit 202, configured to determine a cranking state in a cranking indication when the first operating data set satisfies a first preset condition;

[0092] The switching unit 203 is used to switch the converter of the wind turbine generator set from the running mode to the electric mode when the cranking state is the electric control cranking state, so as to control the wind turbine generator set to enter the cranking state;

[0093] A first control unit 204 is used to control the absolute encoder to collect the current impeller position of the impeller in the wind turbine generator set in response to receiving the instruction to stop the cranking;

[0094] A second determination unit 205, for determining whether the current position of the target impeller locking socket matches the locking structure according to the current impeller orientation;

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

[0096] In some embodiments of the present disclosure, the first operating data set includes whether the safety chain of the wind turbine generator set is closed, whether the brake is released, the wind speed value and the impeller speed. The switching unit 203 can be specifically used to:

[0097] When the safety chain is closed, the brake is released, the wind speed value is less than or equal to the preset wind speed, and the impeller speed is less than or equal to the first preset speed, determining that the first operating data set meets the first preset condition;

[0098] Determine the cranking status in the cranking indication.

[0099] In some embodiments of the present disclosure, the device may further include:

[0100] A third determination unit is used to respectively determine a target impeller orientation corresponding to each of the multiple locking sockets of the impeller to obtain multiple target impeller orientations; the target impeller orientation is the orientation of the impeller when the first position of the locking socket matches the second position of the locking structure;

[0101] The second determination unit 205 may be specifically configured to determine that the current position matches 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 the present disclosure, the device may further include:

[0103] A third control unit is used for controlling the wind turbine generator set to crank in a counterclockwise direction in response to receiving a counterclockwise cranking instruction;

[0104] The fourth control unit is used to control the wind turbine generator set to crank in a clockwise direction in response to receiving a clockwise cranking instruction.

[0105] In some embodiments of the present disclosure, the device may further include:

[0106] The acquisition unit is further used to acquire a second operating data set of the wind turbine generator set; the second operating data set includes the current rotation speed of the impeller, whether the safety chain is disconnected, whether the brake indication signal is received, and whether the converter is faulty; the converter is a converter corresponding to the wind turbine generator set;

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

[0108] In some embodiments of the present disclosure, the device may further include:

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

[0110] 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.

[0111] According to the wind turbine generator set cranking control device proposed in the embodiment of the present disclosure, in response to receiving a cranking instruction for the wind turbine generator set, a first operation data set of the wind turbine generator set is obtained; when the first operation data set meets the first preset condition, the cranking state in the cranking instruction is determined; when the cranking state is the electric control cranking, the converter of the wind turbine generator set is switched from the operation mode to the electric mode to control the wind turbine generator set to enter the cranking state; in response to receiving an instruction to stop the cranking, the absolute encoder is controlled to collect the current impeller position of the impeller in the wind turbine generator set; according to the current impeller position, whether the current position of the target impeller locking socket matches the locking structure; when the current position of the target impeller locking socket matches the locking structure, the brake 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. The impeller is accurately positioned by the absolute encoder, so that the timing of inserting the locking structure into the target impeller locking socket can be accurately grasped, so that the impeller can be locked in time, thereby improving the cranking efficiency.

[0112] Figure 33 is a block diagram of a device for a method for controlling a cranking gear of a wind turbine generator set according to an exemplary embodiment. For example, the device 300 may be an electronic device, such as a programmable logic controller (PLC) or a computer.

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

[0114] The processing component 302 generally controls the overall operation of the device 300, such as communicating with the display and data. The processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the above method. In addition, the processing component 302 may include one or more modules to facilitate the interaction between the processing component 302 and other components. For example, the processing component 302 may include a multimedia module to facilitate the interaction between the multimedia component 308 and the processing component 302.

[0115] The memory 304 is configured to store various types of data to support operations on the device 300. Examples of such data include instructions for any application or method operating on the device 300. The 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 component 306 provides power to the various components of the device 300. The power component 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 300.

[0117] The 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 touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.

[0118] The sensor assembly 314 includes one or more sensors for providing various aspects of status evaluation for the device 300. For example, the sensor assembly 314 may include an absolute encoder for evaluating the impeller position and impeller speed, and may also include an anemometer for evaluating wind speed, etc. In addition, it may also include other sensors for wind turbines, such as: a vibration sensor, an incremental encoder, an anemometer vane, a temperature sensor, and a pressure sensor.

[0119] The communication component 316 is configured to facilitate wired or wireless communication between the apparatus 300 and other devices. For example, an industrial bus such as modbus-tcp, modbus-rtu, canopen, profibus, etc. can be used to implement wind turbine network communication.

[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 above method.

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

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

[0123] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0124] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A method for controlling a turning gear of a wind turbine generator set, characterized in that: include: In response to receiving a cranking instruction for a wind turbine generator set, acquiring a first operating data set of the wind turbine generator set; In the case where the first operating data set satisfies a first preset condition, determining a cranking state in the cranking indication; When the cranking state is the electric-controlled cranking state, switching the converter of the wind turbine generator set from the running mode to the electric mode, so as to control the wind turbine generator set to enter the cranking state; In response to receiving an instruction to stop cranking, controlling an absolute encoder to collect a current impeller position of an impeller in the wind turbine generator set; Determining whether a current position of a target impeller locking socket matches a locking structure according to the current impeller orientation; When the current position of the target impeller locking socket matches the locking structure, the brake 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.

2. The method for controlling the turning gear of a wind turbine generator set according to claim 1, characterized in that: The first operating data set includes whether the safety chain of the wind turbine generator set is closed, whether the brake is released, the wind speed value and the impeller speed; The step of determining the cranking state in the cranking indication when the first operating data set satisfies a first preset condition includes: When the safety chain is closed, the brake is released, the wind speed value is less than or equal to the preset wind speed, and the impeller speed is less than or equal to the first preset speed, determining that the first operating data set meets the first preset condition; A cranking state in the cranking indication is determined.

3. The method for controlling the turning gear of a wind turbine generator set according to claim 1, characterized in that: Before acquiring the first operating data set of the wind turbine generator set in response to receiving a cranking instruction for the wind turbine generator set, the method further includes: Determine the target impeller orientation corresponding to each of the multiple locking sockets of the impeller respectively, and obtain multiple target impeller orientations; the target impeller orientation is the orientation of the impeller when the first position of the locking socket matches the second position of the locking structure; The determining, according to the current impeller orientation, whether the current position of the target impeller locking socket matches the locking structure comprises: In a case where the current impeller orientation is the same as any one of the plurality of target impeller orientations, it is determined that the current position matches the locking structure.

4. The method for controlling the turning gear of a wind turbine generator set according to claim 1, characterized in that: Also includes: In response to receiving the counterclockwise cranking instruction, controlling the wind turbine generator set to crank in a counterclockwise direction; In response to receiving the clockwise cranking instruction, the wind turbine generator set is controlled to crank in a clockwise direction.

5. The method for controlling the turning gear of a wind turbine generator set according to claim 1, characterized in that: After the converter of the wind turbine generator set is switched from the operation mode to the motor mode so as to control the wind turbine generator set to enter the cranking state, the method further includes: Acquire a second operating data set of the wind turbine generator set; the second operating data set includes the current rotation speed of the impeller, whether the safety chain is disconnected, whether a brake indication signal is received, and whether the converter is faulty; the converter is a converter corresponding to the wind turbine generator set; When the current rotation speed is greater than or equal to a second preset rotation 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 cranking.

6. The method for controlling the turning gear of a wind turbine generator set according to claim 1, characterized in that: Also includes: After a first preset time period after receiving the cranking stop instruction, 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 be disconnected.

7. A wind turbine generator turning control device, characterized in that: include: an acquisition unit, configured to acquire a first operating data set of the wind turbine generator set in response to receiving a cranking instruction for the wind turbine generator set; A first determining unit, configured to determine a cranking state in the cranking indication when the first operating data set satisfies a first preset condition; A switching unit, used for switching the converter of the wind turbine generator set from the running mode to the electric mode when the cranking state is the electric control cranking state, so as to control the wind turbine generator set to enter the cranking state; A first control unit is used for controlling an absolute encoder to collect a current impeller position of an impeller in the wind turbine generator set in response to receiving an instruction to stop the cranking; a second determination unit, configured to determine whether a current position of a target impeller locking socket matches a locking structure according to the current impeller orientation; The second control unit is used to control the braking device to brake the impeller when the current position of the target impeller locking socket matches the locking structure, and control the locking structure to be inserted into the target impeller locking socket to lock the impeller.

8. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method according to any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that The computer program implements the method according to any one of claims 1 to 6 when executed by a processor.

Images