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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 unrealistic, increased labor risks, labor-intensive problems, etc., to save maintenance costs , reduce labor risks and ensure safety

Active Publication Date: 2013-11-06
青海明阳新能源有限公司
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  • Summary
  • Abstract
  • Description
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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 turbines need to be repaired or maintained, the wind turbine switches from operating mode to shutdown mode under the action of its controller. After the fan enters the stop mode, the impeller is rapidly decelerated under the action of the pitch device, and then comes to a standstill under the force of the brake clamp. If there is a problem with the equipment inside the impeller, you need to release the brake clamp and move the rotor manually to lock the impeller. The wind turbine based on this mechanism has basically equipped with the hardware structure that can realize automatic locking: the impeller brake device (including the pitch and rotor brake device) and the locking device, only need to upgrade part of the hardware on this basis, and write appropriate The control software can establish an automatic control system for impeller locking.

[0028] See figure 1 , An automatic impeller lo...

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

Claims

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Application Information

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Patent Type & Authority Patents(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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