以DSP為基底之升壓型三相感應電動機無感測驅動器

DSP Based Boost-type Three-phase Sensorless Induction Motor Drive

汪張育(Jhang-Yue Wang)

指導教授 ： 陳政裕

國立虎尾科技大學/電機資訊學院/電機工程研究所/碩士(2009年)

摘要

本論文提出一以DSP為基底之新型升壓型直流轉交流(DC/AC)變頻器來驅動交流感應電動機。此新型變頻器應用廣義零向量(Generalized Zero Vector,GZV)技巧，將傳統升壓型直流轉交流三相變頻器的兩級結合成單級(SingleStage)，可直接應用於較高額定電壓之交流感應電動機，以提高電動機效率，並降低電瓶數量與空間。電動機控制部份採用120度導通控制方式，由電動機定子線圈之反電勢可得到氣隙磁通大小及相位，同時獲得轉子轉速，藉此三個信號可即時修正電動機參數，以達到真正的無感測電動機向量控制。最後，實際研製一交流最高輸出電壓可達200V，容量250W之新型變頻器雛型，驗證所提新型變頻器具備升壓及無感測速度控制等特點。

關鍵字

廣義零向量 ； 向量控制 ； 無感測

並列摘要

This thesis proposes a novel sensorless boost-type DC/AC motor drive based on DSP. Using a generalized zero vector technique, the proposed drive has several advantages such as higher output voltage to increase motor efficiency, reduced weight and space of battery. Adapted o 120 control strategy, the magnitude, phase and frequency of air-gap flux can be obtained for motor coil. Therefore, using those
signals of the motor parameter can be modified in real time to achieve the real sensorless vector control. Finally, same experimental results are presented for verification.

並列關鍵字

generalized zero vector ； vector control ； sensorless

參考文獻

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