| 研究生: |
鍾昭玟 Chao-Wen Chung |
|---|---|
| 論文名稱: |
無刷直流馬達直接轉矩控制方法之轉矩漣波改善 The Torque Ripple Improvement of Brushless DC Motor by Direct Torque Control Method |
| 指導教授: |
徐國鎧
Kuo-Kai Shyu |
| 口試委員: | |
| 學位類別: |
碩士 Master |
| 系所名稱: |
資訊電機學院 - 電機工程學系 Department of Electrical Engineering |
| 畢業學年度: | 89 |
| 語文別: | 中文 |
| 論文頁數: | 78 |
| 中文關鍵詞: | 直流無刷馬達 、直接轉矩控制 、轉矩漣波 |
| 外文關鍵詞: | Brushless DC Motor, Direct Torque Control, Torque Ripple |
| 相關次數: | 點閱:8 下載:0 |
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以直接轉矩控制法(Direct Torque Control, DTC)設計驅動器時,傳統的電壓向量切換方式並不能同時兼顧動態和穩態的性能要求,所以本論文實現二種改良型的DTC電壓向量切換方式。第一種方式是於變頻器控制中加入零向量切換狀態,由傳統的三階轉矩控制迴路轉為五階;而第二種方式則是劃分空間向量區域為十二個區間,而不是傳統的六個區間。如此,使得DTC的轉矩輸出不論動態或穩態都能有優異的表現,並進而改善傳統DTC之穩態轉矩漣波現象。
在設計整體驅動器及控制系統時,若能輔以電腦輔助設計系統,常常能有事半功倍的效果,所以在本論文中也以電腦模擬的方式先行對DTC之控制架構做一模擬,以利於和實驗結果相互驗證。
由本論文的分析、研究、模擬和驗證,可證明本論文所提出的改良型直接轉矩控制方法,確實改善了無刷直流馬達的轉矩漣波,並符合了實際應用場合的高性能需求。
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