武海涛;刘永和;王志和;

• 1:内蒙古工业大学电力学院

摘要(Abstract)：

为了解决大功率应用场合中传统电流源型变换器与交流电网连接时涉及交流侧感性储能缓冲问题,在传统并联式三相12脉波电流源型变换器直流侧设计一种基于分流电感的直流电流复注变换电路,并以此构造一种新型STATCOM系统。在分析电路结构的基础上给出开关触发时序,获得理论波形;根据系统的等效电路推导数学模型,并提出无功功率控制方法;通过仿真和实验,验证所提电路结构和无功控制方法的可行性与正确性。结果表明:新型STATCOM输入输出性能优良,无需设置入网接口缓冲交流电容器即可保证三相交流电流的连续,无需滤波即可获得高质量的电流波形;根据控制角度命令,STATCOM系统能准确调整输出电流的相位,输出相应的容性无功或感性无功,具备自由调节无功功率的能力。

关键词(KeyWords)： FACTS;STATCOM;CSC;无功补偿;控制方法

Abstract:

Keywords:

基金项目(Foundation): 内蒙古自治区自然科学基金重大项目(2010ZD10)~~

作者(Author): 武海涛;刘永和;王志和;

Email:

DOI: 10.13335/j.1000-3673.pst.2017.0291

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