CN111884550A - Self-driven wind wheel turning device and method for wind turbine generator - Google Patents
Self-driven wind wheel turning device and method for wind turbine generator Download PDFInfo
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- 238000005516 engineering process Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 description 8
- 230000001360 synchronised effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/026—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for starting-up
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0272—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor by measures acting on the electrical generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/50—Maintenance or repair
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/15—Special adaptation of control arrangements for generators for wind-driven turbines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention provides a self-driven wind wheel turning gear of a wind turbine generator, which comprises a transformer, a converter, a generator, a transmission chain, a wind wheel and a master control system which are connected in sequence; the converter comprises a joggling control module which is used for reading generator parameters and controlling the generator to work in a joggling manner; the invention also provides a wind turbine generator self-driven wind wheel turning method, which comprises the following steps: stopping the wind turbine generator to feather; the converter reads generator parameters and adjusts the output of the converter to control the starting rotating speed of the generator; the converter controls the generator to operate in a inching working mode to drive the wind wheel to rotate discontinuously; the generator is started by inching for multiple times, so that the wind wheel rotates to gradually approach the locking position; when the wind wheel rotates to the locking position, the wind wheel locking pin is inserted into the wind wheel locking disc positioning hole; the invention can solve the technical problems of poor fault tolerance and low safety of the operation of workers when the converter is used for driving the generator to drive the vehicle.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a self-driven wind wheel turning device and method for a wind turbine generator.
Background
Wind turbine generator system wind wheel barring means that when unit maintenance personnel got into the cabin or need get into wheel hub, in order to guarantee unit and personal safety, made the wind wheel slowly rotate through manual or machinery, electric method to the wind wheel locking pin can easily insert in wind wheel locking dish locating hole, prevented that wind turbine generator system wind wheel from rotating. At present, a large-scale wind turbine generator mostly realizes barring by manually barring a high-speed shaft brake disc, and when a wheel hub needs to be entered, a wind wheel locking disc positioning hole is often waited to be close to a wind wheel locking pin insertion hole by means of weak rotation of the wind wheel in a feathering state; only a small part of onshore large megawatt units and offshore units are additionally provided with special barring frequency converters and motors. The manual or mechanical method is time-consuming and labor-consuming, and the special barring gear is installed at a high cost and is inconvenient to popularize.
The prior art provides a system for driving a generator of a wind generating set to perform barring by a full-power converter, which comprises a transformer, the full-power converter, a synchronous generator, a gear box and an impeller, wherein the transformer, the full-power converter, the synchronous generator, the gear box and the impeller are sequentially connected with a power grid; the full power converter comprises a machine side converter connected to the synchronous generator and a grid side converter connected to the transformer. When the wind turbine generator needs to be turned on, the fan main control system controls the grid-side converter to enable energy to be rectified into direct current from a power grid through the grid-side converter and flow to a direct current bus of the full-power converter; the machine side converter controls the machine side IGBT to be switched on and switched off, output voltage and frequency are adjusted to drive the synchronous generator to rotate, and the synchronous motor drives the impeller to rotate at a low speed to achieve turning of the wind turbine generator. The system can complete the automatic barring function of the wind turbine generator by utilizing the original components of the wind turbine generator without adding any external equipment.
However, in the above technical scheme, the synchronous motor drives the impeller to rotate at a slow speed, which is a continuous rotation process, when the wind wheel rotates to a position to be locked, if a worker carelessly operates the wind wheel, the wind wheel locking pin is not inserted into the wind wheel locking disc positioning hole at the first time, the wind wheel can continue to rotate under the driving of the synchronous motor, so that the barring locking position is missed, and the technical scheme has poor fault tolerance and low safety on the operation of the worker.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a wind turbine self-driven wind wheel turning device and a method thereof, and aims to solve the technical problems of poor operation fault tolerance and low safety of workers when a converter is used for driving a generator to turn in the prior art.
The technical scheme adopted by the invention is as follows:
in a first aspect, a wind turbine generator self-driven wind wheel turning gear is provided;
in a first implementation mode, the wind turbine self-driven wind wheel turning device comprises a transformer, a converter, a generator, a transmission chain, a wind wheel and a master control system which are connected in sequence; the converter comprises a joggling control module which is used for reading generator parameters and controlling the generator to work in a joggling mode.
In combination with the first implementable manner, in the second implementable manner, the manner in which the inching control module controls the generator to inching work includes setting the number of rotations of the single-start generator and the single-start time.
In combination with the first implementation manner, in a third implementation manner, the wind turbine generator self-driven wind wheel turning device further comprises a misoperation preventing controller, and the misoperation preventing controller is used for controlling the inching control module to receive the instruction.
With reference to the first or third implementable manner, in a fourth implementable manner, the wind turbine includes a full-power converter wind turbine and a doubly-fed wind turbine.
In combination with the fourth implementable manner, in the fifth implementable manner, the converter of the doubly-fed wind turbine generator set includes a stator short-circuit contactor, and the stator short-circuit contactor is connected with a grid-connected contactor in the converter.
In a second aspect, a method for turning a self-driven wind wheel of a wind turbine generator is provided;
in a sixth implementation manner, the wind turbine barring device is used for wind turbine barring by using the wind turbine generator self-driven wind turbine barring device in any one of the first to fifth implementation manners, and the wind turbine barring device comprises the following steps:
stopping the wind turbine generator to feather;
the inching control module of the converter reads generator parameters and adjusts the output of the converter according to the generator parameters to control the starting rotating speed of the generator;
the inching control module of the converter controls the generator to operate in an inching working mode, so that the rotor of the generator intermittently rotates, and the rotor of the generator drives the wind wheel to intermittently rotate through the transmission chain;
the generator is started by inching for multiple times, so that the wind wheel rotates to gradually approach the locking position;
when the wind wheel rotates to the locking position, the wind wheel locking pin is inserted into the wind wheel locking disc positioning hole.
With reference to the sixth implementable manner, in the seventh implementable manner, before the converter reads the generator parameter, the method further comprises controlling, using a malfunction prevention controller, reception of the command by the converter.
In combination with the sixth or seventh implementation manners, in an eighth implementation manner, the wind turbine is a full-power variable-current wind turbine, and the converter controls the motor by using a voltage space vector control technology.
In combination with the sixth or seventh implementable manner, in a ninth implementable manner, the wind turbine is a doubly-fed wind turbine, and the converter controls the motor by using a scalar control method.
According to the technical scheme, the beneficial technical effects of the invention are as follows:
1. according to the technical scheme in the embodiment, the converter and the generator of the wind turbine generator can be fully utilized, the original converter operates as a barring frequency converter, the original generator operates as a motor, the self-driven wind wheel slowly rotates, and self-barring is achieved. The generator is controlled to operate in a inching working mode through the inching control module in the self-turning process, and the fault tolerance of operation of workers can be improved. Meanwhile, the wind wheel rotates discontinuously instead of continuously, so that even if emergency braking is needed when an accident occurs in the barring process, processing time is reserved for workers, and the barring operation safety is improved.
2. For a full-power variable-current wind turbine generator, a current transformer controls a motor by using a Space Vector Pulse Width Modulation (SVPWM) technology; for the double-fed wind turbine generator, the converter controls the motor by using a scalar control technology; the effect of smooth control can be achieved.
3. Through the setting that prevents the maloperation controller, can effectually prevent staff's maloperation, improve the fault-tolerance to staff's operation, guarantee wind turbine generator system equipment safety and staff personal safety.
4. The stator short-circuit contactor is additionally arranged in the converter of the double-fed wind turbine generator, the stator short-circuit contactor is connected with the grid-connected contactor in the converter, electrical interlocking can be formed, under-voltage protection and voltage loss protection of a generator can be achieved, and safety in the turning process is further improved.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a block diagram of a system of a converter of the present invention installed in a nacelle.
Fig. 2 is a block diagram of an apparatus system in which the converter of the present invention is installed in a tower footing.
Fig. 3 is a flow chart of a method for turning the wind turbine generator into a self-driven wind wheel.
Fig. 4 is a block diagram of an apparatus system in which the converter is provided in the tower footing in embodiment 3 of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Example 1
The invention provides a self-driven wind wheel turning gear of a wind turbine generator, which comprises a transformer, a converter, a generator, a transmission chain, a wind wheel and a master control system which are connected in sequence; the converter comprises a joggling control module which is used for reading generator parameters and controlling the generator to work in a joggling mode.
The working principle of example 1 is explained in detail below:
as shown in fig. 1 or fig. 2, the self-driven wind wheel barring device comprises a transformer, a converter, a generator, a transmission chain and a wind wheel which are connected in sequence; in fig. 1, the converter is arranged in the tower footing, in fig. 2, the converter is arranged in the engine room, and the converter and the generator are connected through a tower power cable. In this embodiment, the converter is located in the tower footing or in the nacelle, which does not affect the implementation of the technical solution. The common wind turbine generator set comprises a full-power converter wind turbine generator set and a double-fed wind turbine generator set, and the self-driven wind wheel jiggering of the two wind turbine generator sets is performed according to the following steps as shown in fig. 3:
1. shutdown feathering of wind turbine generator
After the wind turbine generator is shut down, the converter is in a standby state, the generator is in a rotation stop state, and meanwhile the blades are in a feathering state.
2. The converter reads generator parameters and adjusts the converter output according to the generator parameters to control the starting speed of the generator
For the control of the converter, a certain operation terminal, such as a portable computer and the converter, can be used for realizing communication connection; the connection method is not limited, and may be a network cable, an optical fiber, a serial port cable, or the like. And a main control system of the wind turbine generator can be used, and the converter can be called in the main control system.
When the converter is arranged in the cabin, as shown in fig. 1, the portable computer is in direct communication with the converter, and the portable computer sends an instruction to the converter to control the inching control module in the converter. When the converter is arranged in the tower footing, as shown in fig. 2, the portable computer is in communication connection with the converter through the main control system, and the portable computer sends an instruction to the converter through the main control system to control the inching control module in the converter. The specific implementation form of the jog control module is not limited, and is described in the present embodiment by way of example. The inching control module can be realized by adding a PLC (programmable logic controller) in the converter; the original industrial control board in the converter can also be used, and an embedded control program is written in a system of the industrial control board to realize the inching control function.
Specifically, the portable computer sends an instruction to the converter, controls a inching control module in the converter, reads parameters of a stator equivalent circuit and a rotor equivalent circuit of the generator, mainly comprises performance parameters such as main reactance, leakage reactance, direct current resistance value and iron resistance, and operating parameters such as working voltage, rotating speed and frequency of the generator, and returns the read parameters to the portable computer. The portable computer adjusts the output of the converter according to the generator parameters read by the inching control module, including output current, output voltage and the like, so that the starting rotating speed of the generator can be controlled, the purpose of stable starting is achieved, starting impact is reduced, and the overlong stroke of single rotation of the wind wheel caused by overlarge starting rotating speed is avoided.
3. The converter controls the generator to run in a inching working mode, so that the rotor of the generator rotates discontinuously, and the wind wheel rotates discontinuously through the driving chain
The portable computer sends a inching working mode starting instruction to a inching control module in the converter, and the converter receives the starting instruction and then controls the generator to operate in a inching working mode. When the generator operates in a inching working mode, a rotor of the generator can generate discontinuous rotation; the rotor of the generator drives the wind wheel to rotate discontinuously through the driving chain.
In this embodiment, the inching mode of the generator will ensure that the wind wheel does not miss a proper fixing hole when rotating, and two parameters need to be set in the inching control module: the number of turns of the single-start generator and the single-start time. The two parameters can be adjusted in the background, default values, upper limit values and lower limit values are set, and the maximum/minimum values are executed after the maximum/minimum setting range is exceeded. The numerical values are not limited, and according to the actual configuration of the wind turbine, the following are illustrated in this embodiment: because the radian of the central distance between the fixing holes of the wind wheel locking pin is generally 15 degrees, the radian occupied by a single fixing hole is 9 degrees, the radian for starting the rotation of the wind wheel in a inching mode every time is calculated according to 1/3 of the radian occupied by a single positioning hole, namely 3 degrees, and the number of turns of the rotation of the wind wheel every time is 3/360-1/120 turns. The transmission ratio of a gearbox in a transmission chain of the wind turbine generator is generally 90-120, so that the converter controls the generator to rotate 3/4-1 turn each time, and the wind wheel can be ensured not to miss a proper fixed hole in the rotating process.
Wind wheel locking pin and fixed orifices diameter differ little, and when the wind wheel rotated, for making things convenient for maintainer to insert the wind wheel locking pin, it is preferred in this embodiment, control single inching control start time is 3s, stops 3 seconds after the generator start work 3 seconds and restarts start work promptly.
In order to realize the effect of stable control, for a full-power variable-flow wind turbine generator, a generator used by the wind turbine generator is a synchronous motor, and a converter controls a motor by using a voltage space vector control technology (SVPWM); for a double-fed wind turbine generator, a generator used by the wind turbine generator is an asynchronous motor, and a converter controls a motor by using a scalar control technology.
4. The generator is started by inching for many times, so that the wind wheel rotates to be gradually close to the locking position
And the inching control module of the converter is started for multiple times at certain time intervals according to a preset program. The wind wheel is driven by the generator rotor through the transmission chain to gradually rotate to be close to the locking position.
5. When the wind wheel rotates to the locking position, the wind wheel locking pin is inserted into the positioning hole of the wind wheel locking disc
In this embodiment, the wind wheel rotates 1/120 circles each time, and when the wind wheel rotates to the position near the locking position, the wind wheel rotates 3 times when rotating from one side to the other side of the positioning hole of the wind wheel locking disc, so that 9 seconds of reaction preparation time is reserved for workers. When the wind wheel rotates to the locking position, the wind wheel can stay for 3 seconds and keep still, so that the operating time of 3 seconds is provided for the working personnel, at the moment, the working personnel can easily insert the wind wheel locking pin into the positioning hole of the wind wheel locking disc, the situation that the working personnel are not sufficiently prepared basically can be avoided, or the wind wheel locking pin is inserted into the positioning hole of the wind wheel locking disc and is not inserted into the positioning hole at the first time, and the wind wheel continuously rotates and staggers the positioning hole.
According to the technical scheme in the embodiment, the converter and the generator of the wind turbine generator can be fully utilized, the original converter operates as a barring frequency converter, the original generator operates as a motor, the self-driven wind wheel slowly rotates, and self-barring is achieved. The generator is controlled to operate in a inching working mode through the inching control module in the self-turning process, and the fault tolerance of operation of workers can be improved. Meanwhile, the wind wheel rotates discontinuously instead of continuously, so that even if emergency braking is needed when an accident occurs in the barring process, processing time is reserved for workers, and the barring operation safety is improved.
Example 2
When the preparation work of the barring is carried out on the engineering site, if the portable computer is in communication connection with the converter, the preparation work of other barring is not completed, for example, the blades of the wind wheel are not in a feathering state, and if a worker operates by mistake, the portable computer sends a inching operation mode starting instruction to the inching control module in the converter, and the blades of the wind wheel start to rotate.
In order to solve the technical problem, the self-driven wind wheel turning device of the wind turbine generator system is further optimized on the basis of the embodiment 1, and a misoperation preventing controller is added for controlling a inching control module in a converter to receive a starting instruction.
The specific implementation form of the misoperation prevention controller is not limited, and is described in the embodiment by way of example. The misoperation prevention controller can use various forms such as a switch, a knob, a button and the like, such as a red emergency stop button which is common on equipment. When the button is in the bounce state in front of the barring gear, the communication connection between the portable computer and the converter is disconnected in fig. 1, and the communication connection between the portable computer and the main control system is disconnected in fig. 2, namely the communication connection between the portable computer and the converter is also disconnected. After the preparation work of the barring is done, the staff presses the misoperation preventing button, at the moment, the communication connection between the portable computer and the converter is opened, and the portable computer sends an instruction to the inching control module in the converter to be received.
In the embodiment, the misoperation prevention controller plays an auxiliary role in switching the normal working mode and the inching working mode of the generator, and the portable computer finally realizes the switching by sending a starting instruction to the inching control module. Through the setting that prevents the maloperation controller, can effectually prevent staff's maloperation, improve the fault-tolerance to staff's operation, guarantee wind turbine generator system equipment safety and staff personal safety.
Example 3
Because the double-fed wind power generator set is sensitive to the induction of power grid disturbance, the voltage input into the generator can be reduced due to the disturbance caused by faults such as power grid short circuit and the like in the self-driven wind wheel barring process; even the power loss causes the generator to stop, and the generator can start automatically after the power grid is restored. Both of these conditions can cause an uncontrolled number of turns of the rotor. In order to solve the technical problem, the following technical scheme is adopted for further optimization on the basis of the embodiment 1 or the embodiment 2:
the converter of the double-fed wind turbine generator comprises a stator short-circuit contactor, and the stator short-circuit contactor is connected with a grid-connected contactor in the converter.
The working principle of example 3 is explained in detail below:
as shown in fig. 4, the converter includes a main breaker, a main contactor, a grid-connected contactor, and a power module inside. And a stator short-circuit contactor is added in the converter and is connected with the grid-connected contactor. After the inching control mode is started, the stator short-circuit contactor is closed to enable the stator to be in short circuit, the double-fed generator operates as a general asynchronous motor at the moment, the double-fed converter operates as a full-power converter, excitation and control are carried out through the rotor side, meanwhile, the stator short-circuit contactor and the grid-connected contactor form electrical interlocking, under-voltage protection and voltage loss protection of the generator can be achieved, and safety in the turning process is further improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (9)
1. The utility model provides a wind turbine generator system self-driven wind wheel barring gear, includes transformer, converter, generator, driving chain, wind wheel and the major control system that the order was connected, its characterized in that: the converter comprises a joggling control module, and the joggling control module is used for reading the generator parameters and controlling the generator to work in a joggling mode.
2. An apparatus according to claim 1, characterized in that: the mode that the inching control module controls the generator to inching work comprises the setting of the rotation number of turns of a single-start generator and the single-start time.
3. An apparatus according to claim 1, characterized in that: the anti-misoperation system further comprises an anti-misoperation controller, wherein the anti-misoperation controller is used for controlling the inching control module to receive the instruction.
4. A device according to claim 1 or 3, characterized in that: the wind turbine generator set comprises a full-power converter wind turbine generator set and a double-fed wind turbine generator set.
5. An apparatus according to claim 4, characterized in that: the converter of the double-fed wind turbine generator set comprises a stator short-circuit contactor, and the stator short-circuit contactor is connected with a grid-connected contactor in the converter.
6. A wind turbine generator self-driven wind wheel turning method, characterized in that the device of any one of claims 1-5 is used for turning the wind wheel, comprising the following steps:
stopping the wind turbine generator to feather;
the inching control module of the converter reads generator parameters, adjusts the output of the converter according to the generator parameters and controls the starting rotating speed of the generator;
the inching control module of the converter controls the generator to operate in an inching working mode, so that the rotor of the generator intermittently rotates, and the rotor of the generator drives the wind wheel to intermittently rotate through the transmission chain;
the generator is started by inching for multiple times, so that the wind wheel rotates to gradually approach the locking position;
when the wind wheel rotates to the locking position, the wind wheel locking pin is inserted into the wind wheel locking disc positioning hole.
7. A method according to claim 6, characterized in that: before the inching control module of the converter reads the generator parameters, the method further comprises the step of using a misoperation prevention controller to control the inching control module of the converter to receive commands.
8. A method according to claim 6 or 7, characterized in that: the wind turbine generator is a full-power converter wind turbine generator, and the converter controls the motor by using a voltage space vector control technology.
9. A method according to claim 6 or 7, characterized in that: the wind turbine generator is a double-fed wind turbine generator, and the converter controls the motor by using a scalar control method.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010543537.8A CN111884550A (en) | 2020-06-15 | 2020-06-15 | Self-driven wind wheel turning device and method for wind turbine generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010543537.8A CN111884550A (en) | 2020-06-15 | 2020-06-15 | Self-driven wind wheel turning device and method for wind turbine generator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669195A (en) * | 2021-07-23 | 2021-11-19 | 明阳智慧能源集团股份公司 | Converter dragging mode-based wind turbine generator impeller automatic alignment method and system |
| CN113885405A (en) * | 2021-10-29 | 2022-01-04 | 中国船舶重工集团海装风电股份有限公司 | Integrated control method and control system for wind generating set |
| CN114922778A (en) * | 2022-04-29 | 2022-08-19 | 重庆海装风电工程技术有限公司 | Wind turbine automatic positioning starting method and system based on wind generating set |
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2020
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113669195A (en) * | 2021-07-23 | 2021-11-19 | 明阳智慧能源集团股份公司 | Converter dragging mode-based wind turbine generator impeller automatic alignment method and system |
| CN113669195B (en) * | 2021-07-23 | 2022-09-16 | 明阳智慧能源集团股份公司 | Converter dragging mode-based automatic alignment method and system for wind turbine impeller |
| CN113885405A (en) * | 2021-10-29 | 2022-01-04 | 中国船舶重工集团海装风电股份有限公司 | Integrated control method and control system for wind generating set |
| CN114922778A (en) * | 2022-04-29 | 2022-08-19 | 重庆海装风电工程技术有限公司 | Wind turbine automatic positioning starting method and system based on wind generating set |
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