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微网友好接入的柔性变流器并网接口控制方法 被引量:6

A Flexible Converter Grid-connected Interface Control Method for Friendly Accession of Microgrid
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摘要 针对微网友好接入对高性能并网接口的需求,提出了一种新型的柔性变流器并网接口。为了使该并网接口有效地工作,给出了基于瞬时无功功率理论的电流检测方法,深入研究了柔性变流器并网接口直流侧电压和定无功功率控制方法;此外,基于加权电流反馈的思想,提出了谐波和不对称电流综合补偿的滞环电流控制方法。最后应用Matlab/Simulink进行了仿真,仿真结果进一步验证了使用所提并网接口与控制策略实现微网友好接入的有效性和可行性。 For the needs of friendly accession of microgrid to high-performance grid-connected interface,a new type of grid-connected interface based on flexible converter is proposed in this paper. To enable the grid-connected interface to work efficiently and effectively, an approach to detect compensative current based on instantaneous reactive power theory is given, and the corresponding DC side voltage and constant reactive power control strategy are presented. Furthermore, a hysteresis current controller based on weighted current feedback is also given. Finally, by simulation on Matlab/simulink platform, the feasibility and effectiveness of the provided microgrid interface and its control strategy are verified.
出处 《电力系统及其自动化学报》 CSCD 北大核心 2015年第7期54-59,共6页 Proceedings of the CSU-EPSA
基金 湖南省研究生科研创新项目(CX2012B362)
关键词 微网 并网接口 柔性变流器 谐波补偿 并网控制 microgrid grid-connected interface flexible converter harmonic compensation grid-connected control
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参考文献15

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