Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1998.07f
- /
- Pages.1940-1943
- /
- 1998
Boosting Inductor Distribution Type PWM Rectifier
승압인덕턴스 분산형 PWM 정류기
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Lee, Moo-Young
(Doowon Technical Collage)
;
- Kim, Woo-Hyun (Kyungpook National University) ;
- Ma, Jin-Suck (Kyungpook National University) ;
- Im, Sung-Un (Kyungil University) ;
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Kwon, Woo-Hyen
(Kyungpook National University)
- Published : 1998.07.20
Abstract
A new PWM rectifier which offers a unity power factor is proposed. The circuit has same inductance as the conventional boosting type PWM rectifier in powering mode, but the inductance is splitted to 2 part in freewheeling mode. So the period of freewheeling mode is shorter than that of conventional boosting type PWM rectifier, and discontinuous input current is obtained in wide duty range. Therefore the proposed PWM rectifier accomplishs a unity power factor in wide range of duty ratio and boosting factor. And the conventional boosting type PWM rectifier has poor power factor near the unity boosting ratio, the proposed PWM rectifier improves this problem. The mathmatical analysis are presented and experimental results are given.
Keywords