Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2007.07a
- /
- Pages.196-198
- /
- 2007
A Study on the Power Factor Improvement of DC Power Regenerating Systems Using SVPWM
SVPWM을 이용한 직류전력 회생시스템의 역률개선에 관한 연구
- Ko, Young-Min (Dept. of Electrical Eng., Dankook University) ;
-
Chae, Soo-Yong
(Dept. of Electrical Eng., Dankook University)
;
- Seo, Young-Min (Dept. of Electrical Eng., Dankook University) ;
- Jeong, Dae-Taek (Dept. of Electrical Eng., Dankook University) ;
- Bae, Young-Wook (Dept. of Electrical Eng., Dankook University) ;
- Hong, Soon-Chan (Dept. of Electrical Eng., Dankook University)
- 고영민 (단국대학교 전기공학과) ;
-
채수용
(단국대학교 전기공학과)
;
- 서영민 (단국대학교 전기공학과) ;
- 정대택 (단국대학교 전기공학과) ;
- 배영욱 (단국대학교 전기공학과) ;
- 홍순찬 (단국대학교 전기공학과)
- Published : 2007.07.02
Abstract
In the substations for traction systems and the large-scale discharging system of secondary batteries, the voltage of DC bus line goes up by the regenerated energy and the energy is usually wasted in resistor for system stability. This paper proposes the DC power regenerating system using a three phase PWM inverter. The proposed system can regenerate the excessive DC power from DC bus line to AC supply and control the power factor of AC supply to unity. To implement unity power factor, the magnitude of the inverter output voltage should be higher than that of AC supply and therefore SVPWM technique is adopted. Computer simulations are carried out to verify the validity of the proposed system.
Keywords