A Simplified Multilevel SVPWM Algorithm Based on Cascade H Bridge STATCOM

SHI Liping; LIU Jiaxuan; LU Yuning

doi:10.14044/j.1674-1757.pcrpc.2016.04.005

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A Simplified Multilevel SVPWM Algorithm Based on Cascade H Bridge STATCOM

更新时间：2024-09-14

- A Simplified Multilevel SVPWM Algorithm Based on Cascade H Bridge STATCOM
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 37, Issue 4, Pages: 24-30(2016)
- 作者机构：
  
  中国矿业大学信息与电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2016.04.005
  CLC： TM464
- Published：2016，
- 稿件说明：
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[1]史丽萍,刘佳璇,鹿峪宁.一种级联H桥STATCOM的简化多电平SVPWM调制算法[J].电力电容器与无功补偿,2016,37(04):24-30.

SHI LIPING, LIU JIAXUAN, LU YUNING. A Simplified Multilevel SVPWM Algorithm Based on Cascade H Bridge STATCOM. [J]. Power capacitor & reactive power compensation, 2016, 37(4): 24-30.
[1]史丽萍,刘佳璇,鹿峪宁.一种级联H桥STATCOM的简化多电平SVPWM调制算法[J].电力电容器与无功补偿,2016,37(04):24-30. DOI： 10.14044/j.1674-1757.pcrpc.2016.04.005.

SHI LIPING, LIU JIAXUAN, LU YUNING. A Simplified Multilevel SVPWM Algorithm Based on Cascade H Bridge STATCOM. [J]. Power capacitor & reactive power compensation, 2016, 37(4): 24-30. DOI： 10.14044/j.1674-1757.pcrpc.2016.04.005.

摘要

级联H桥逆变器采用SVPWM调制算法具有直流电压利用率高、波形畸变小的优点。而随着电平数增多产生的大量的冗余矢量会使传统算法的复杂度急剧上升。针对多电平SVPWM传统算法的实现复杂的问题

提出一种简化的多电平调制算法

结合零序电压注入相间电压平衡策略来选取冗余矢量

应用于级联H桥STATCOM。在Simulink中搭建了级联2个模块的STATCOM仿真模型

仿真表明STATCOM具有良好的无功和谐波补偿效果

极大地简化了多电平SVPWM算法

验证了该简化算法的有效性及可行性。

Abstract

Multilevel SVPWM algorithm used in cascade H bridge STATCOM has the advantage of high DC voltage utilization

providing good voltage waveform. But the complexity of the traditional algorithm will rises rapidly due to a large amount of redundant space vectors appearing when the number of level becomes larger. To solve the problem of difficult in implementing the traditional algorithm

a simplified multilevel modulation algorithm used in STATCOM is proposed

which combines with zerosequence voltage injection

the DC voltage balance between three phrases. A two-module STATCOM model is built in Simulink

and the simulation results shows that the STATCOM has good ability of reactive current and harmonic current compensation. The multilevel SVPWM algorithm is simplified and the simplified alg-orithm. The results verifies the validity and feasibility of the proposed algorithm.

关键词

级联H桥多电平SVPWM零序电压注入

Keywords

cascade H bridgemultilevel SVPWMzerosequence voltage injection

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