研究生: |
林振德 Jhen-de Lin |
---|---|
論文名稱: |
具能量回收功能之六相永磁式同步電動機驅動器研製 Implementation of Six-Phase Permanent-Magnet Synchronous Motors Drive With Energy Recovery Function |
指導教授: |
葉勝年
Sheng-Nian Yeh |
口試委員: |
黃仲欽
none 林法正 none 廖俊慶 none 劉益華 none |
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: | 2008 |
畢業學年度: | 96 |
語文別: | 中文 |
論文頁數: | 81 |
中文關鍵詞: | 能量回收 、六相永磁式同步電動機 |
外文關鍵詞: | Energy Recovery Function, Six-Phase Permanent-Magnet Synchronous Motors Dr |
相關次數: | 點閱:492 下載:33 |
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本文旨在研製具能量管理之六相永磁式同步電動機的驅動器。六相永磁式同步電動機具有兩組三相繞組,採用兩組三相變頻器將直流電源轉換為交流電源。永磁同步電動機直流鏈電壓方面,採用兩臂分相式昇壓型功率轉換器,將蓄電池48V直流電壓轉換為48V至85V直流鏈電壓,且此電壓隨電動機轉速調整。電動機於低轉速時,由蓄電池直接提供直流鏈電壓;於高轉速運轉時,藉由昇壓型功率轉換器以提供較高直流鏈電壓。如此,使電動機於低速運轉時減少直流鏈電壓功率轉換損失,以提高系統輸出效率。永磁同步電動機煞車能量回收方面採用兩臂分相式降壓型功率轉換器,將永磁同步電動機之感應電動勢轉換為穩定直流電壓,將能量回充蓄電池及具有輔助煞車的效果。
本文之系統以數位訊號處理器TMS320F2808為控制核心,其六相永磁式同步電動機的轉速及電流閉迴路控制及兩臂式直流-直流功率轉換器之控制,皆由軟體程式完成,可減少電路元件。本文已完成250 W六相永磁式同步電動機驅動系統,並由實測結果驗證本文系統之可行性。
This paper presents the implementation of six-phase permanent-magnet synchronous motor (PMSM) drive including energy management system. Six-phase PMSM has double three-phase windings. A couple of three-phase inverters are designed to serve as the dc-ac power converters. Two-leg boost dc-dc power converter is introduced to boost the voltage of battery from 48V to 85V. The dc-link voltage varies with speed of the motor, and is supplied by battery when motor is operated at low speed. Whereas, the dc-link voltage is raised by dc-dc power converter during high speed. Therefore, this strategy not only reduces switching loss of converter but also improves output efficiency of the system. As motor is braking, two-leg buck dc-dc power converter is applied to retrieve the energy to charge the battery through the electromotive force of motor.
In this thesis, a digital signal processor, TMS320F2808, is used as the control core. Closed-loop controls of speed, current and two-leg dc-dc power converter are accomplished by software to reduce circuit components. A 250W, six-phase PMSM drive is developed in the proposed system. Reliability and performance of the system are verified by experiments.
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