研究生: |
蔡鴻儒 Hung-ru Tsai |
---|---|
論文名稱: |
磁通估測法達成無轉軸偵測元件開關式磁阻電動機驅動系統的研製 Design and Implementation of a Sensorless Drive for a Reluctance Motor by Using Flux Estimating Method |
指導教授: |
劉添華
Tian-hua Liu |
口試委員: |
葉勝年
Sheng-nian Yeh 徐國鎧 Kuo-kai Shyu 賴炎生 Yen-shin Lai 楊勝明 Shang-ming Yang |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電機工程系 Department of Electrical Engineering |
論文出版年: | 2007 |
畢業學年度: | 95 |
語文別: | 中文 |
論文頁數: | 106 |
中文關鍵詞: | 開關式磁阻電動機 、轉軸角度估測 、轉速估測 、數位控制系統 |
外文關鍵詞: | switched reluctance machine, rotor position estimation, rotor speed estimation, digital control system |
相關次數: | 點閱:276 下載:5 |
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本文旨在研製無轉軸偵測元件之開關式磁阻電動機驅動系統。文中,首先介紹開關式磁阻電動機的基本原理、架構、及數學模式,接著探討無轉軸偵測元件驅動系統。本文使用二種方法估測電動機的轉速及轉軸角度:方法一利用估測電動機激磁線圈的磁通鏈,配合滑動模式觀測器,計算電動機轉速及轉軸角度;方法二使用查表法,即時運算電動機激磁線圈的磁通鏈,配合事先建立的電動機磁通鏈對電流及轉軸角度的關係表,決定激磁相位及估測轉速。
本文使用Motorola公司的32位元微電腦,以組合語言撰寫的控制程式,執行速度及電流控制,完成閉迴路控制系統,實測結果說明本文所提方法確實可行。
This thesis is concerned with the development of the sensorless switched reluctance machine drive system. First, the basic principle, structure, and mathematical model of the switched reluctance machine are introduced. Then, two sensorless techniques of the drive system for switched reluctance machines are presented. The first method estimates the flux of the machine by using a sliding-mode observer to obtain the rotor position and speed, with the second method calculates the flux of the machine, and compares it with a look-up table to determine the commutation sequences and the estimated speed.
Using a 32-bit microprocessor manufactured by Motorola Company, a digital system including the closed-loop speed controller and current controller, is implemented. The experimental results show that the proposed methods are feasible and practical.
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