三相四开关结构的容错型有源电力滤波器Fault-tolerant Active Power Filter Based on 3-phase 4-switch Structure
李刚,樊晓平,彭劲杰
摘要(Abstract):
提出了一种基于三相四开关结构容错型有源电力滤波器,并提出其控制方法。首先给出了容错型有源电力滤波器的结构和运行模式。逆变器某相故障时,逆变器的容错结构为三相四开关型逆变器,即以两个电容组成的桥臂代替故障相,并分析了其工作原理。提出了稳定直流侧总电压和两个电容电压平衡的方法。仿真结果表明,三相四开关结构容错型有源电力滤波器在正常工作状态和故障状态都能较好地抑制谐波,直流侧电压保持稳定,系统可靠性高。
关键词(KeyWords): 有源电力滤波器;谐波抑制;三相四开关;直流侧电压控制
基金项目(Foundation): 中南大学中央高校基本科研业务费专项资金资助项目(721500232)
作者(Author): 李刚,樊晓平,彭劲杰
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