| 逆变器供电永磁直线同步电动机谐波分析 |
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| 引用本文： | 汪旭东,郭欣欣,王飞,王艳. 逆变器供电永磁直线同步电动机谐波分析[J]. 微电机, 2007, 40(7): 10-12 |
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| 作者姓名： | 汪旭东 郭欣欣 王飞 王艳 |
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| 作者单位： | 河南理工大学,电气工程自动化学院,焦作,454000 |
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| 基金项目： | 国家自然科学基金;河南省杰出青年科学基金 |
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| 摘 要： | 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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| 关 键 词： | 永磁直线同步电动机 PWM逆变器 谐波磁场 推力 |
| 文章编号： | 1001-6848（2007）07-0010-03 |
| 修稿时间： | 2007-01-192007-06-10 |
Harmonic Analysis of Permanent Magnet Synchronous Motor Fed by Inverter |
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| WANG Xu-dong,GUO Xin-xin,WANG Fei,WANG Ya. Harmonic Analysis of Permanent Magnet Synchronous Motor Fed by Inverter[J]. Micromotors, 2007, 40(7): 10-12 |
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| Authors: | WANG Xu-dong GUO Xin-xin WANG Fei WANG Ya |
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| Abstract: | In this paper,harmonic characteristics of the permanent magnet linear synchronous motor(PMLSM)fed by pulse width modulation(PWM)voltage source inverter are discussed.The analytical expression of harmonic currents is presented using variable separation method.Harmonic field characteristic and components of the thrust are also studied.The analysis shows that the non-sinusoidal power from the inverter causes thrust ripple and pulsation in motor.The results are verified by comparison of FEM. |
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| Keywords: | Permanent magnet linear synchronous motor PWM inverter Harmonic field Thrust |
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