| Summary: | 碩士 === 國立臺北科技大學 === 電機工程系研究所 === 99 === There are so many green energy issues in recent years. Global warming, crisis of fossil energy, the emerging carbon trading market, even the recent nuclear tragedy in Japan, were raising the market share and development of wind energy. The purpose of this study is to optimize the PM Coreless (coreless) magnetic structure design by using Halbach Array. By combining with analysis of magnetic structures, we could reduce the number of permanent magnet magnetic steel usage. Finally, we could reach weight reduction, solve the current problems of small wind turbines and increase power efficiency. This article discusses the optimizing design of permanent magnetic synchronous generator by combining Halbach Array. We could shorten the repeat time of motor designing, manufacturing and testing which were frequently happened in the past manufacturing process by using finite element analysis software simulation. Finally we could compare all products of permanent magnet generator in current market, together with consideration of features of wind power, further analysis and design, we could figure out the most suitable type of generator for wind power by more analysis and design.
The Test results, successfully reduce the number of magnetic yoke, and substantially reduce weight when mass production. The optimization of Halbach Array has verified the results that the best efficiency will happen on a fixed position. Under the same design conditions the output power efficiency of generator can reach more than 58.7%, and solve the problem of sharp power reduction when frequency is double. The electrical frequency could be double of the specifications of the original mass production.
|
|---|
