赵鹏豪;王朝亮;许建中;宗波;赵成勇;

• 1:新能源电力系统国家重点实验室(华北电力大学)
• 2:国网浙江省电力公司电力科学研究院
• 3:国网智能电网研究院

摘要(Abstract)：

模块化多电平换流器(multilevel modular converter,MMC)具有高度模块化、输出波形谐波含量低、开关频率低等优点,因而在高压直流输电领域得到了广泛应用。如何处理直流侧故障是MMC需要面对的主要难题。在分析已有子模块拓扑的基础上,提出了一种具有直流故障穿越能力的子模块拓扑,在不改变原有控制策略与调制策略的情况下能够快速切断故障电流。最后在PSCAD/EMTDC下搭建了仿真模型,对所提子模块拓扑进行了验证,仿真结果证明了所提出的子模块拓扑在切断直流故障电流方面的有效性。

关键词(KeyWords)： 模块化多电平换流器;高压直流输电;子模块拓扑;直流故障

Abstract:

Keywords:

基金项目(Foundation): 国家高技术研究发展计划(863计划)主题项目(2013AA050105)~~

作者(Author): 赵鹏豪;王朝亮;许建中;宗波;赵成勇;

Email:

DOI: 10.13335/j.1000-3673.pst.2014.12.027

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