一种新型九脉冲型三相三电平逆变器

A Novel Nine-pulse Three-phase Three-level Inverter

本文提出了一种新型九脉冲型三相三电平逆变器,详细分析了该电路的运行原理。该逆变器具有能够平衡所有开关管损耗的优点,同时采用模糊控制器和比例谐振控制器代替传统的比例积分(PI)控制器,提高了系统的响应速度,在保证系统功率能分别控制的同时减少了系统的复杂性。试验结果验证了该新型逆变拓扑结构的正确性与有效性。

A novel nine-pulse three-phase three-level inverter is presented, with its operation principle analyzed in details. The inverter has the advantage of balancing the wastage of all power switches. Furthermore, the fuzzy and PR controller is used instead of the conventio nal PI controller in the system, which enhances the response speed of the system and reduces the system complexity, with the system power could being separately controlled in the meantime. The experimental results show that the inverter of the novel topology is correct and effective.