Passive blade pitch control module

Abstract

Disclosed is a passive blade pitch control module. An embodiment of the present invention provides a passive blade pitch control module comprising: a body part which includes a center column and is connected to a rotation shaft of a wind power generator; one or more rotation blocks which are coupled to the body part so as to be rotatable about a pitch axis and to which a blade is mounted and supported; a link plate which is coupled to the center column so as to be movable along the center column and is eccentrically coupled to the rotation blocks with respect to the pitch axis; and a spring for elastically supporting the link plate.

Description

technical field [0001] The invention relates to a blade pitch control module capable of adjusting the blade pitch angle of a wind power generator. Background technique [0002] In general, a wind turbine converts the rotational force of the wind-based blades into electrical energy, and has the following advantages: it does not emit carbon dioxide, so does not cause pollution, and uses natural wind, so there is almost no power generation cost, compared with other energy sources , less initial equipment cost. The wind of the appropriate wind speed in the wind generator is beneficial to the power production of the wind generator, but the normal wind often does not maintain an appropriate speed, and suddenly changes into a strong wind or a sudden gust of wind that can threaten the blades of the wind generator, Or it can become a low-speed wind that can cause errors in power production. In particular, excessive loads are applied to the blades of wind turbines above the rated wi...

AI Technical Summary

Problems solved by technology

However, most of these conventional pitch control devices are expensive equipment, which are limitedly applicable to some large-scale wind turbines. Due to the complicated internal structure, there are difficulties in use or maintenance management.

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