| 逆变器供电下异步电动机低频振荡现象的研究 |
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| 引用本文： | 李红梅,李忠杰,刘良成.逆变器供电下异步电动机低频振荡现象的研究[J].电工技术学报,2000,15(3):16-19. |
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| 作者姓名： | 李红梅 李忠杰 刘良成 |
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| 作者单位： | 合肥工业大学电气系 230009 |
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| 摘 要： | 对PWM电压源逆变器供电下异步电动机开环控制下低频振荡进行了模拟，分析了低频振荡的原因，提出了用逆变器输入电流ⅠD中的负电流分量间隔时间是否大于1／Fc（Fc是PWM信号的载波频率）来作为低频振荡的判据。
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| 关 键 词： | 逆变器-异步电动机 低频振荡 振荡原因 振荡判据 |
| 修稿时间： | 1999年11月3日 |
Analysis Low Frequency Oscillation of Inverter Fed Asynchronou s Motor |
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| Li Hongmei,Li Zhongjie,Liu Liangcheng.Analysis Low Frequency Oscillation of Inverter Fed Asynchronou s Motor[J].Transactions of China Electrotechnical Society,2000,15(3):16-19. |
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| Authors: | Li Hongmei Li Zhongjie Liu Liangcheng |
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| Abstract: | The reason of low frequency oscillation that is generaed when an asynchronous motor is drivenby PWM inverter of voltage source using open loop control strategy is simulated, we analyze the reason of lowfrequency oscillation, and bring up a judging factor for low frequency oscillation whether the negative currentperiod of inverter input curmnt is more than 1/Fc (Fc is carrier frequency of PWM signals) or not. |
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| Keywords: | Inverter-asynchronous motor Low frequency oscillation Oscillatory reason Oscillation judging factor |
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