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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/19995

    Title: 水平風力機之轉向控制機構創新設計
    其他題名: Innovative Mechanism Design for Yawing System Control in a Horizontal Wind Turbine
    Authors: 尹雅芳
    Ivonne Elizabeth Cartagena Padilla
    指導教授: 陳恕行
    Shu-Hsing Chen
    Keywords: Wind power;Brake system;Centrifugal force;Yaw system;Yaw control
    Date: 2013
    Issue Date: 2013-10-09 10:30:59 (UTC+8)
    Abstract: Wind power generation currently takes the second place in the growth rate of the modern technologies to produce energy. Up until 2010 the energy generation capacity of wind power reached the 196 GW and during 2011 it continued growing reaching a capacity of 238.4 GW. However, wind power technology still needs improvements on efficiency and methods of control. Wind load is the force of the wind acting on a surface. It cannot be confused with wind speed although they are relatively associated. Many methods for protection of the turbine components such as the blades, rotor and generator are used in several models. Brake systems, furling systems, blade pitch control and yawing systems are some of the many methods used. This document emphasizes on an innovative mechanism that uses the same source of kinetic energy to trigger the mechanism that controls the yawing already used by some small wind turbines to control the load of the wind acting upon the blades. The yaw control mechanism is used to tilt the angle of the turbine away from the direction of the wind causing it to reduce the load when the wind over pass certain wind speed. The mechanism described in this document is a mechanical device that controls the yawing angle using centrifugal force to trigger a pushing rod that tilts the tail. Tilting the tail to an angle will increase the wind load at the tail creating a moment to tilt the whole turbine at the yawing axis. This is significant due to the fact that it is totally a mechanical device which suggests that it can be mass produced since this system is reliable and less expensive than those driven by electrical or hydraulic power.
    Appears in Collections:[機械工程系所] 博碩士論文

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