逆变器供电永磁直线同步电动机谐波分析

Micromotors Servo Technique(2007)

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Abstract
以脉宽调制电压型逆变器供电的永磁直线同步电动机(PMLSM)为求解对象,用分离变量法求解电动机的电流解析表达式,在此基础上分析了电动机的谐波磁场特性及逆变器供电电源产生的推力谐波分量。分析表明,电源的非正弦畸变引起电动机磁场畸变并使电动机推力产生波动。解析结果与有限元方法结果有较好吻合。
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Key words
Thrust,PWM inverter,Permanent magnet linear synchronous motor,Harmonic field
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