The series H-bridge multilevel converter's power circuit is composed of uncontrolled rectifier with filtering capacitor and single phase H-bridge voltage-type inverter.
串联H桥多电平变频器的主回路从结构上可分为三相电容滤波不可控整流电路和单相电压型全桥逆变电路。
The PWM rectifier technology, of which the uncontrolled diode rectifier is replaced by a controlled IGBT is used in this paper in order to overcome these shortcomings.
为了克服这些缺点，本文利用PWM整流技术，用可控的IGBT取代不可控二极管整流。
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