Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2001.07a
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- Pages.552-555
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- 2001
A Study on the Power Factor Improvement of DC Power Regenerating Systems
직류전력 회생시스템의 역률개선에 관한 연구
- 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)
- Published : 2001.07.01
Abstract
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.
Keywords