基于CPS-SPWM调制方式的链式STATCOM研究

赵强, 王加军

赵强, 王加军. 基于CPS-SPWM调制方式的链式STATCOM研究[J]. 工矿自动化, 2012, 38(6): 72-76.
引用本文: 赵强, 王加军. 基于CPS-SPWM调制方式的链式STATCOM研究[J]. 工矿自动化, 2012, 38(6): 72-76.
ZHAO Qiang, WANG Jia-jun. Research of Chain Circuit STATCOM Based on CPS-SPWM Modulatio[J]. Journal of Mine Automation, 2012, 38(6): 72-76.
Citation: ZHAO Qiang, WANG Jia-jun. Research of Chain Circuit STATCOM Based on CPS-SPWM Modulatio[J]. Journal of Mine Automation, 2012, 38(6): 72-76.

基于CPS-SPWM调制方式的链式STATCOM研究

基金项目: 

山东省煤炭工业科学技术发展计划(2011-93 )

详细信息
  • 中图分类号: TD608

Research of Chain Circuit STATCOM Based on CPS-SPWM Modulatio

  • 摘要: 针对非线性、冲击性负荷给煤矿电网注入了大量无功功率和谐波的问题,研究了基于CPS-SPWM调制方式的链式静止同步补偿器STATCOM;介绍了链式STATCOM主电路结构;针对链式STATCOM调制方式包括单极性CPS-SPWM和双极性CPS-SPWM两种调制方式,采用Matlab仿真分析了基于H桥基本模块和基于级联H桥的单极性CPS-SPWM调制方式与双极性CPS-SPWM调制方式的差别,结果表明,单极性CPS-SPWM调制方式的波形质量明显好于双极性CPS-SPWM调制方式,链式STATCOM应选用单极性CPS-SPWM调制方式;采用Matlab/Simulink平台对不同调制比下的基于单极性CPS-SPWM调制方式的链式STATCOM进行仿真,结果表明,该链式STATCOM具有输出波形好、谐波低、扩展性强等特点。
    Abstract: In view of problem that nonlinear and impact load inject plenty of reactive power and harmonic wave into coal mine power grid, the paper researched chain circuit STATCOM based on CPS-SPWM modulation. It introduced main circuit structure of chain circuit STATCOM; for two modulations of unipolar CPS-SPWM and bipolar CPS-SPWM in chain circuit STATCOM, it used Matlab to analyze differences between unipolar CPS-SPWM modulation and bipolar CPS-SPWM modulation based on H-bridge basic module and cascade H-bridge, the simulation result showed that waveform quality of unipolar CPS-SPWM modulation is superior to one of bipolar CPS-SPWM modulation, so chain circuit STATCOM should select unipolar CPS-SPWM modulation; it used Matlab/Simulink platform to make simulation for chain circuit STATCOM based on unipolar CPS-SPWM modulation under different modulation ratios, the simulation result showed that the chain circuit STATCOM has characteristics of good output waveform, low harmonics and strong expandability.
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出版历程
  • 刊出日期:  2012-06-09

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