Eliminating Common-mode Voltage of Cascaded High Voltage Inverter Based on Support Vector Machine

YANG Zhen-yu1; CAO Min-zhu1; NI Xi-jun2; ZHAO Jian-feng2

doi:10.13296/j.1001-1609.hva.2010.03.024

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Eliminating Common-mode Voltage of Cascaded High Voltage Inverter Based on Support Vector Machine

更新时间：2025-04-26

- Eliminating Common-mode Voltage of Cascaded High Voltage Inverter Based on Support Vector Machine
- High VoltageApparatus Vol. 46, Issue 3, Pages: 32-36(2010)
- 作者机构：
  
  1. 常州供电公司
  2. 东南大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.03.024
  CLC： TN773
- Published：2010
- 稿件说明：
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[1]杨振宇,曹敏珠,倪喜军,赵剑锋.基于SVM的级联型高压变频器共模电压抑制研究[J].高压电器,2010,46(03):32-36.

YANG Zhen-yu1, CAO Min-zhu1, NI Xi-jun2, et al. Eliminating Common-mode Voltage of Cascaded High Voltage Inverter Based on Support Vector Machine[J]. High voltageapparatus, 2010, 46(3): 32-36.
[1]杨振宇,曹敏珠,倪喜军,赵剑锋.基于SVM的级联型高压变频器共模电压抑制研究[J].高压电器,2010,46(03):32-36. DOI： 10.13296/j.1001-1609.hva.2010.03.024.

YANG Zhen-yu1, CAO Min-zhu1, NI Xi-jun2, et al. Eliminating Common-mode Voltage of Cascaded High Voltage Inverter Based on Support Vector Machine[J]. High voltageapparatus, 2010, 46(3): 32-36. DOI： 10.13296/j.1001-1609.hva.2010.03.024.

摘要

为消除级联型高压变频器输出共模电压

针对其特殊结构

提出左右桥臂组概念

并采用两电平SVM

将两参考矢量的相差调整为2π/3。由于级联型结构每层均能输出3种电平

可挑选共模电压为0的三电平矢量进行调制。该两种SVM通过错时采样技术

平滑应用于级联型高压变频器

并可完全抑制其共模电压。仿真和实验结果都证明了这两种SVM的有效性。

Abstract

To eliminate common-mode voltage of cascaded multi-level inverter

a concept of left and right legs is proposed according to the special structure of the converter.Each leg adopts 2-level support vector machine（SVM）

and the phase difference between their reference vectors is set 2π/3.As every cascade of cascaded inverter can output 3-level voltages

3-level vectors with zero common-mode voltage are used for modulation.These two SVMs can be smoothly used in cascaded high-voltage inverter via staggered sampling time to completely eliminate common-mode voltage.The results of simulation and experiment verify the effectiveness of the proposed SVMs.

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