Blade pitch controller for small-scale wind power generation system

Abstract

Disclosed is a blade pitch controller for a small-scale wind power generation system. Movable segments are integrally formed on an outer circumferential surface of the movable block, have moving grooves, and move backward and forward along with the movable block. Pitch adjustment pieces have adjustment pins formed at one end of each thereof, key grooves into which blade shafts are fixedly inserted are formed in the middles thereof, and pitch angles of blades are changed by angles changed when the movable block moves backward and forward. Pitch adjustment cylinders are coupled to fixing pieces formed at one end of each of the pitch adjustment pieces by hinges so as to be able to be located near the adjustment pins, are compressed when the movable block moves backward, and cause the pitch adjustment pieces to return to an original state after being compressed.

Description

technical field [0001] The present invention relates to a blade pitch control device for a small wind power generation device, and in more detail relates to a blade pitch is automatically controlled by using a pitch adjusting plate and a pitch adjusting cylinder to continuously maintain the required blade rotational force and enable continuous power generation. A blade pitch control device for a small wind power generation device. Background technique [0002] Wind power generation is to convert the kinetic energy of the wind into mechanical kinetic energy with the help of a turbine, and then convert the mechanical kinetic energy into electrical kinetic energy, which is converted into energy proportional to the cube of the ordinary wind speed and the area of ​​the turbine. According to the direction of the rotation axis, wind turbines are divided into horizontal axis type and vertical axis type. At present, horizontal axis type or propeller type wind turbines are mainly used...

AI Technical Summary

Problems solved by technology

However, this type of system has the following disadvantages: every time the rotating body and the nacelle return to the next original position avoiding the wind direction, continuous vibration is applied to the empennage, causing damage to the system or damage to the hinge structure

However, this method is mainly suitable for large wind turbines, and is not suitable for small wind turbines due to the cost and installation limitations of control devices.

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