Automatic control system of wind driven generator blade unloading device
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ζ¨ζθ£
- Publication Date
- 2011-03-30
- Estimated Expiration
- Not applicable Β· inactive patent
Smart Images
Figure 1 Figure 2
Abstract
Description
technical field
[0001] The invention relates to a wind power generator, in particular to an automatic control system for a blade unloading device of a wind power generator. Background technique
[0002] At present, fixed-pitch wind wheel devices are commonly used in wind turbines, and the electronically controlled servo system is used to control the stall of the wind turbine. That is, when the wind speed is too high, the system makes the wind wheel turn to yaw as a whole, reducing the area of ββthe windward force, so as to ensure the wind turbine. The number of rotations does not exceed the rated number of rotations of the generator to protect the generator from being damaged. At the same time, it also avoids the damage of the wind turbine and the wind turbine pillar, so as to ensure the safe operation of the wind power generating set.
[0003] Although the existing fixed-pitch wind wheel device has protected the operation safety of the wind power generating set, it still h...