| 三电平逆变器的无速度传感器矢量控制系统 |
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| 引用本文： | 牛一川,孙东.三电平逆变器的无速度传感器矢量控制系统[J].应用科技,2012,39(1):16-20. |
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| 作者姓名： | 牛一川 孙东 |
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| 作者单位： | 同济大学电子与信息工程学院,上海,200092 |
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| 摘 要： | 介绍三电平逆变器的基本结构并推导了三电平空间矢量脉宽调制（SVPWM）原理，为防止电容中点电压的偏移，采用改进型SVPWM控制方法作为逆变器的控制策略．同时，引入模型参考自适应技术，并在三电平转速、磁链双闭环控制中使用该技术实现了无速度传感器控制．通过仿真结果证明了方法的正确性和可行性．
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| 关 键 词： | 无速度传感器矢量控制 三电平逆变器 模型参考自适应系统（MRAS） 空间矢量脉宽调制（SVPWM） |
Speed-sensorless vector control system based on the three-level inverter |
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| NIU Yichuan
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SUN Dong.Speed-sensorless vector control system based on the three-level inverter[J].Applied Science and Technology,2012,39(1):16-20. |
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| Authors: | NIU Yichuan SUN Dong |
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| Institution: | College of Electronics and Information Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | The basic structure of the three-level inverter is introduced and the three-level space vector pulse width modulation （SVPWM） theory is derived. An improved SVPWM control algorithm is adopted as the control strategy for the inverter in order to compensate the neutral-point shifting. Besides, model reference adaptive system （MRAS） is researched and is applied to the three-level inverter in double closed-loop control of rotation speed and magnetic flux. Validity and feasibility related to this technique are proved through simulation results. |
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| Keywords: | speed-sensorless vector control three-level inverter model reference adaptive system （MRAS） space vector pulse width modulation （SVPWM） |
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