無轉軸偵測元件之開關磁阻馬達驅動系統研製

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姓名

楊義隆(Yi-Long Young ) 查詢紙本館藏

畢業系所

電機工程研究所

論文名稱

無轉軸偵測元件之開關磁阻馬達驅動系統研製
(Implementation and Design of a Switched reluctance Drive system without a Rotor Position Sensor.)

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摘要(中)

摘要
本文主旨在探討研製一無轉軸角度偵測元件之開關磁阻馬達驅動器。文中將就開關磁阻馬達之結構、數學模式、運動原理及電氣特性加以說明，並且回顧目前現有的轉軸角度偵測方法，接著本論文將針對開關磁阻馬達，設計一全數位化的控速系統，並在此一架構下，利用開關磁阻馬達運轉時之激磁電流特性，配合外部硬體偵測電路及內部的DSP 程式撰寫，以獲得轉軸位置資訊，藉由此一轉子位置資訊進而達到轉速控制之目的，另外從靜止起動問題，仍是無轉軸偵測元件驅動器製作技術的一大主題，文中也將對此一部份有所探討說明。
此外為了縮短系統發展時間及驗證所使用的理論方法，本論文利用Matlab/Simulink建立一模擬系統，不僅可為初期理論發展的依據，也可作為日後實測結果的驗證依據。

摘要(英)

This paper describes a method for indirect sensing of the rotor position in switched reluctance motors (SRMs) using pulse width modulation voltage control. The detection method uses the change of the derivative of the phase current to detect the position where a rotor pole and stator pole start to overlap, giving one position update per energy conversion. As no a priori knowledge of motor parameters is required (except for the numbers of stator and rotor poles), the method is applicable to most SRM topologies in a wide power and speed range and for several inverter topologies. The method allows modest closed-loop dynamic performance. To start up the motor, a feedforward stepping method is used which assures robust startup (even under load) from standstill to a predefined speed at which closed-loop sensorless operation can be applied. Experimental results demonstrate the robust functionality of the method with just one current sensor in the inverter, even with excitation overlap, and the sensorless operation improves with speed. A detailed operation and implementation of this scheme is shown, together with steady-state and dynamic transient test results.

關鍵字(中)

★ DSP
★ 開關磁阻馬達

關鍵字(英)

★ DSP
★ Switched Reluctance Motor

論文目次

目錄
摘要I
目錄II
圖表目錄IV
第一章緒論
1.1動機及目的1
1.2文獻回顧2
1.3章節與組織3
第二章開關磁阻馬達介紹
2.1 簡介4
2.2 扭矩原理7
2.3 轉矩與速度特性10
2.4 磁阻馬達數學模式11
2.5 磁阻馬達轉矩方程式13
2.6 馬達簡化之電感與轉矩模型17
2.7 換流器之介紹19
第三章無轉軸位置偵測元件之驅動方法
3.1 簡介24
3.2 無轉軸位置偵測元件驅動器的驅動方法28
第四章全數位化驅動器及微處理機程式
4.1 簡介43
4.2 數位控制器單元44
4.3 速度回授單元51
4.4 換流器電路單元52
4.5電流感測與濾波電路單元55
4.6 轉軸位置偵測電路56
第五章模擬輔助系統與實驗結果
5.1 簡介60
5.2 電腦模擬輔助系統的建立60
5.3 模擬及實驗結果64
第六章結論78
附錄A79
參考文獻80

參考文獻

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指導教授

徐國鎧(Kuo-Kai Shyu)

審核日期

2001-7-7

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