武海涛;刘永和;

• 1:内蒙古工业大学能源与动力工程学院

摘要(Abstract)：

为克服电压源型换流器在大功率光伏并网系统应用中存在的缺陷,结合谐波注入技术和多电平技术提出了既能够并网发电、又能实现无功补偿和抑制谐波电流的大功率单级式电流源型光伏并网换流器拓扑。首先分析了该拓扑的结构及工作原理,构建了该系统的数学模型;然后提出了适用于该系统的非线性控制策略,重点分析了全局线性化的处理方法;最后在PSCAD平台搭建了仿真模型。仿真结果验证了该拓扑结构和控制策略的有效性。

关键词(KeyWords)： 谐波注入;多电平;非线性;无功补偿;光伏并网;谐波抑制

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51067006);; 内蒙古自治区自然科学基金重大项目(2010ZD06);; 内蒙古工业大学科学研究基金项目(ZS201234)~~

作者(Author): 武海涛;刘永和;

Email:

DOI: 10.13335/j.1000-3673.pst.2013.08.023

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