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| 研究生： |
張立穎 Li-Ying Chang |
|---|---|
| 論文名稱： |
針對數位控制脈寬調變轉換器於運算時間延遲之相位領前補償方法 Phase Advance Compensation for Computational Time Delay of a Digital Controlled PWM Converter |
| 指導教授： |
鄭博泰
Po-Tai Cheng |
| 口試委員: | |
| 學位類別： |
碩士 Master |
| 系所名稱： |
電機資訊學院 - 電機工程學系 Department of Electrical Engineering |
| 論文出版年： | 2004 |
| 畢業學年度： | 92 |
| 語文別： | 中文 |
| 論文頁數： | 86 |
| 中文關鍵詞： | 轉換器 、主動濾波 、能量回生 、時間延遲 、數位信號處理器 |
| 相關次數： | 點閱：2 下載：0 |
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近年來，由於數位信號處理器對於實現複雜控制法及程式撰寫的便利性，許多電力電子之應用皆偏好使用數位信號處理器來實現控制法。然而數位信號處理器所伴隨的時間延遲卻使得控制法在實現上有未盡理想之處。以並聯式主動濾波器為例，其濾波效果之優劣主要取決於電流控制的能力，若以數位信號處理器來實現其電流控制法，則所造成的時間延遲勢必降低電流的追隨性能，進而影響整體濾波的效果。因此，關於數位信號處理器時間延遲之研究遂成為一重要課題。
目前在各式電流控制法中，以預測電流調節器最常應用於並聯式主動濾波器，其對諧波電流的追隨性能及定頻操作為其最大優點。因此本文特針對數位控制器的時間延遲對預測電流調節器所產生的影響加以研究及提出補償方法，並以電腦模擬及實驗測試結果來驗證本文所提之控制
Recently, many power electronics applications use digital signal processors for control implementation because of their advantages in handling complex mathematics operations and easy programming. However, the inherent time delay of the digital signal processor deteriorates its control performance. For example, the filtering capability of the shunt active filter highly depends on the current control capability. The time delay of the digital signal processor reduces the current tracking capability and harmonic compensation performance. Thus, the research on the time delay of the digital controller becomes an issue.
The predictive current regulator is often used for shunt active filters because it has the advantages of high current tracking capability and fixed switching frequency operation. This thesis studies the effect of the time-delay caused by digital controllers on the predictive current regulator, and proposes a compensation method. Computer simulation and laboratory test results are presented to validate the functionalities of the proposed method.
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