전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2001년도 전력전자학술대회 논문집
- /
- Pages.552-555
- /
- 2001
직류전력 회생시스템의 역률개선에 관한 연구
A Study on the Power Factor Improvement of DC Power Regenerating Systems
- Yoon In-Sic (Dankook University) ;
- Seo Young-Min (Dankook University) ;
- Hong Soon-Chan (Dankook University) ;
- Yoon Duck-Yong (Chonan National Technical College) ;
- Han Sung-Soo (Korea Rolling Stock Co)
- 발행 : 2001.07.01
초록
This paper deal with the power factor improvement of DC power regenerating systems, which are composed of two inverters, zig-zag connected output transformers, and an AC filter. The output voltages of the inverter system are not sinusoidal. Regenerated complex power is analyzed on the basis of fundamental components and therefore the reactive power produced by harmonics is not considered. Therefore, it is needed a new control scheme capable of controlling the reactive power nearly to zero for nonsinusoidal case. Computer simulations are carried out to verify the validity of the proposed control scheme.
키워드