公开(公告)号：US20120141267A1

公开(公告)日：2012-06-07

申请号：US12906100

申请日：2010-12-03

Applicant: Michael Ching Kwei Kang

Inventor： Michael Ching Kwei Kang

IPC: F03D7/00

CPC classification number: F03D7/0224 ,  F03D7/042 ,  F05B2270/328 ,  Y02E10/723

Abstract: A method and related apparatus to control pitch angle of the blade of any horizontal axis wind turbines (wind generators or wind mills), which employs only the centrifugal force of the blade assembly including the blades and the moving parts of the patented apparatus.The pitch control is automatic when the rotational speed of the turbine rotor reaches certain pre-set value, the blade pitch angle is increased by the centrifugal forces of the blade assembly, thus the apparatus restricts the maximum rotating speed of the turbine rotor, and protects the wind turbine from being destructed by excessive wind speed, yet the wind turbine will keep running and producing power at the excessive wind speed.Due to the simplicity and low cost, this method and related apparatus are more suitable for medium and small wind generators (e.g., power

Abstract translation: 一种用于控制任何水平轴风力涡轮机（风力发电机或风力发电机）的叶片的俯仰角的方法和相关装置，其仅采用包括叶片的叶片组件的离心力和专利设备的运动部分。 当涡轮转子的转速达到一定的预设值时，桨距控制是自动的，叶片桨距角由于叶片组件的离心力而增加，因此该装置限制了涡轮转子的最大转速，并保护 风力涡轮机被风速过高所破坏，风力发电机将以过高的风速保持运行和发电。 由于简单性和低成本，该方法和相关装置更适用于中小型风力发电机（例如，功率<10KW），其中传统的液压或电动变桨控制装置太复杂并且对于 安装。