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基于模块化多电平逆变器的STATCOM环流抑制策略研究

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摘要 模块化多电平静止同步补偿器(MMC-STATCOM)在运行中存在环流问题,它会对系统的运行产生较大负面影响,例如增加功率损耗,降低器件使用寿命等。针对此问题,首先分析了环流的产生机理,建立了环流模型。为有效抑制环流的各次谐波,提出了一种基于准比例谐振控制的环流谐波抑制方法。在MATLAB/Simulink平台搭建模型进行仿真,结果表明,所提方法能够有效控制环流,降低桥臂电流的畸变程度,有利于减少MMC-STATCOM功率器件的功率损耗。
出处 《机电信息》 2018年第18期18-19,21,共3页
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