| Summary: | 碩士 === 國立中山大學 === 電機工程學系研究所 === 96 === The wind-turbine generation system (WTGS) exhibits a nonlinear characteristic, thus its maximum power point varies with changing atmospheric conditions. In order to operate the WTGS at maximum power output under various wind speeds, it is necessary to improve the controller system to operate the WTGS.
There are three factors to influence wind generator, the wind speed, power coefficient and the radius of blade. In order to capture more energy, the radius of blade should be larger, but larger radius brings higher costs and more difficulties to install. The objective of the thesis is to find the power coefficient of wind turbine for various pitch angle to obtain the maximum power output. The pitch angle control system uses RBFNN controller, the result is fed to the wind turbine system, and a proportional-integral controller is used to control wind turbine and combine the speed estimation algorithm, which is based on model reference adaptive system theory, to achieve the maximum power tracking.
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