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Impeller locking automatic control system and method for large wind power generator

A technology of wind turbines and automatic control systems, applied in the control of wind turbines, wind turbines consistent with the wind direction, wind turbines, etc., can solve the problems of increased labor risk, labor-intensive, unrealistic, etc., to reduce labor risk , save maintenance costs and ensure safety

Active Publication Date: 2012-07-04
青海明阳新能源有限公司
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0007] Obviously, this method of manually locking the impeller, which relies on the participation of the maintenance team, consumes a lot of labor and increases labor risks, is in urgent need of improvement
Especially for two-blade fans, it is unrealistic to lock the impeller in a horizontal position by manual operation by maintenance personnel every time the fan is shut down

Method used

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  • Impeller locking automatic control system and method for large wind power generator
  • Impeller locking automatic control system and method for large wind power generator
  • Impeller locking automatic control system and method for large wind power generator

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Embodiment Construction

[0027] According to the actual application scenarios of most wind turbines, when the wind turbine needs to be repaired or maintained, the wind turbine is switched from the operation mode to the shutdown mode under the action of its controller. After the fan enters the stop mode, the impeller decelerates rapidly under the action of the pitch device, and then stops under the forced action of the brake clip. If there is a problem with the equipment inside the impeller, the brake clip needs to be released, and the rotor is manually moved to lock the impeller. The wind turbines based on this mechanism basically have the hardware structure that can realize automatic locking: impeller braking device (including pitch and rotor braking device) and locking device, only need to upgrade part of the hardware on this basis, write the appropriate The control software can establish an automatic control system for impeller locking.

[0028] see figure 1 , an automatic control system for impe...

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Abstract

The invention discloses an impeller locking automatic control system and method for a large wind power generator. The impeller locking automatic control system comprises master and slave brake devices, an impeller locking device, a control element and a controller, and is in combination with the automatic control method obtained by programming of the element. The aim of the invention is to provide an automatic control system and method for realizing automatic braking and locking of a fan on an impeller in a halt process.

Description

[technical field] [0001] The invention relates to an automatic control system for impeller locking of a large-scale wind power generating set and a method for locking the impeller. The automatic control system for impeller locking combines multiple subsystems in the wind power generating set to establish a set of control systems that can realize automatic locking of the impeller. [Background technique] [0002] Large wind turbines can be divided into two types according to their structure: vertical axis wind turbines and horizontal axis wind turbines. For the horizontal axis wind turbine, it can be divided into four parts according to the space structure: the hub, the nacelle, the tower and the tower base. [0003] For the common variable-pitch wind turbines at this stage, the blades and driving devices are installed in the hub. As the part connecting the blade to the nacelle, the hub rotates with the blade. The blade and its drive are one of the most important components ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/02F03D1/06
CPCY02E10/723Y02E10/721Y02E10/72
Inventor 宋冬然马学亮陈刚华
Owner 青海明阳新能源有限公司
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