Study of Single-phase Three-level NPC Rectifier Based on Space Vector PWM

doi:10.13890/j.issn.1000-128x.2012.01.022

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Study of Single-phase Three-level NPC Rectifier Based on Space Vector PWM

更新时间：2021-12-13

- Study of Single-phase Three-level NPC Rectifier Based on Space Vector PWM
- Electric Drive for Locomotives Issue 1, Pages: 11-15(2012)
- 作者机构：
  
  1. 西南交通大学电气工程学院
  2. 唐山轨道客车有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2012.01.022
  CLC：
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Study of Single-phase Three-level NPC Rectifier Based on Space Vector PWM. [J]. Electric Drive for Locomotives (1):11-15(2012)
DOI：

Study of Single-phase Three-level NPC Rectifier Based on Space Vector PWM. [J]. Electric Drive for Locomotives (1):11-15(2012) DOI： 10.13890/j.issn.1000-128x.2012.01.022.

摘要

介绍了单相三电平中点箝位(Neutral Point Clamped，NPC)整流器的工作原理，推导了空间矢量脉宽调制(Space Vector Pulse Width Modulation, SVPWM)与正弦脉宽调制(Sinusoidal Pulse Width Modulation, SPWM)之间的关系，并在此基础上把基于SPWM 的中点电压平衡算法推广至SVPWM。计算机仿真和试验结果表明，在支撑电容参数不相等的恶劣情况下，基于SVPWM的中点电压平衡方法仍能有效地抑制单相三电平中点箝位整流器的中点电压不平衡问题。

Abstract

Working principle of single-phase three-level neutral-point-clamped (NPC) rectifier was discussed, and the relation between SVPWM and carrier-based PWM was established, thereby, balance control method based on SPWM for single phase three-level NPC rectifier was presented. Computer simulation and experiment results demonstrated that the proposed neutral-point voltage balance control method could solve the neutral-point voltage unbalance problem effectively even if the parameters of the two capacitors were different.

关键词

中点电压平衡SVPWM三电平整流器中点箝位

Keywords

neutral-point voltage balanceSVPWMthree-level rectifierneutral-point clamped

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