Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 1999.07a
- /
- Pages.675-679
- /
- 1999
A Study on the Single-Phase PWM Rectifier with Neutral Leg
중성점을 가진 단상 PWM 정류기에 관한 연구
Abstract
A single-phase PWM current source rectifier with a neutral leg is presented and throughly analyzed in this paper. This novel topology is implemented by adding an extra leg a step-down single phase PWM space vector modulation method to reduce the dc output voltage harmonics is proposed. The PWM pattern generation need a digital system. As compared with a conventional single-phase PWM rectifier, over 20% improvement of the total harmonics distortion in the output voltage can be obtained. Different SVM techniques are analyzed for this PWM rectifier and simulation result are presented.
Keywords