Five-Level Diode Clamped Inverter to EliminateCommon Mode Voltage and Reduce $dv/dt$ inMedium Voltage Rating Induction Motor Drives
Five-Level Diode Clamped Inverter to EliminateCommon Mode Voltage and Reduce $dv/dt$ inMedium Voltage Rating Induction Motor Drives
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DOI：
10.1109/tpel.2008.925423
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发表时间：
2008-07
影响因子：
6.7
通讯作者：
M. Renge;H. Suryawanshi
中科院分区：
文献类型：
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作者：
M. Renge;H. Suryawanshi
高功率感应电机设计为中压（MV）额定值，以获得更好的性能。与传统的双电平逆变器相比，多电平逆变器（MLI）能够在低开关频率下提供中压高质量输出。除此之外，MLI还降低了dv/dt、开关损耗和漏电流。本文介绍了利用五电平二极管箝位多电平逆变器（DCMLI）降低和消除共模电压（CMV）的方法。CMV尖峰也可以通过移过相极的死区时间来消除。提出了一种选择开关态合成愿望矢量的新方法。本文实现了五电平二极管箝位三相异步电动机MLI的实现。实验结果证明了该方法的可行性。
The High power induction machines are designed at medium voltage (MV) rating for better performance. The multilevel inverters (MLI) are able to provide medium voltage with high quality output at low switching frequency as compared to conventional two-level inverter. In addition to this, MLI reduces dv/dt, switching losses and leakage current. In this paper, approaches to reduce and eliminate the common mode voltage (CMV) using five- level diode clamped multilevel inverter (DCMLI) are presented. The CMV spikes are also eliminated by shifting dead-time across the phase pole. A novel technique for the selection of switching states to synthesize the desire vector is proposed. This paper realizes the implementation of five-level diode clamped MLI for three phase induction motor. Experimental results demonstrate the feasibility of the proposed solution.