Analysis of Modulation Techniques for Reducing Common Mode Voltage in Variable Speed Drive Systems

Sofia Maria Almeida Dias, N. Rocha, Gilielson Figueredo da Paz, I. Soares de Freitas
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Abstract

This article proposes a comparative analysis between some control techniques that are able to considerably reduce the Common Mode Voltage (CMV), which is one of the main causes of failures in induction machines. Among the various solutions, there is the implementation of the Space Vector Modulation (SVM) and its variations, which depend on the choice and application of selected voltage vectors, such as Space Vector Pulse Width Modulation (SVPWM), Active Zero Space Pulse Width Modulation (AZSPWM) and others. It is also possible to implement the triggering of switches through the Finite Set Model Predictive Control (FS-MPC). Thus, computational simulations were carried out in order to obtain this analysis between strategies that reduce the CMV.
变速传动系统中降低共模电压的调制技术分析
本文提出了一些控制技术之间的比较分析,能够大大降低共模电压(CMV),这是感应电机故障的主要原因之一。在各种解决方案中,有空间矢量调制(SVM)及其变体的实现,这取决于所选电压矢量的选择和应用,例如空间矢量脉宽调制(SVPWM),有源零空间脉宽调制(AZSPWM)等。也可以通过有限集模型预测控制(FS-MPC)实现开关的触发。因此,为了在降低CMV的策略之间获得这种分析,进行了计算模拟。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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