As one of the core parts of large-scale wind turbine control system, pitch control system plays a very important role in safe, stable and efficient operation of wind turbine. Stable pitch control has become one of the hotspots and difficulties in the control technology research of large-scale wind turbine. Variable pitch control adjusts the pitch angle of blades with the change of wind speed to stabilize the output power of the generator.

In the process of grid connection, variable pitch control can also realize fast impact-free grid connection, while in case of emergency shutdown, the variable pitch mechanism adjusts the pitch angle of the blades to 90 degrees, so that the blades are reversely propelled, the rotating speed of the wind wheel is reduced, the load impact on the wind turbine is reduced, and the service life of the system is prolonged.

The variable pitch control system is combined with variable speed and constant frequency technology to improve the power generation efficiency and power quality of the whole wind power generation system.

The research on variable pitch control is of great significance to the development of variable speed constant frequency wind turbine.

We can provide hydraulic pitch control system and electric pitch control system to meet different needs of users.

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