Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2009.07a
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- Pages.932_933
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- 2009
Sequence Control of Small-scaled ITER Power Supply for Reactive Power Compensation
무효전력을 보상하는 축소형 ITER 전원공급장치의 순차제어
- Heo, Hye-Seong (POSCON Co.) ;
- Park, Ki-Won (POSCON Co.) ;
- Ahn, Hyun-Sik (POSCON Co.) ;
- Jang, Gye-Yong (POSCON Co.) ;
- Shin, Hyun-Seok (POSCON Co.) ;
- Choi, Jung-Wan (National Fusion Research Institute) ;
- Oh, Jong-Seok (National Fusion Research Institute)
- 허혜성 ((주) 포스콘) ;
- 박기원 ((주) 포스콘) ;
- 안현식 ((주) 포스콘) ;
- 장계용 ((주) 포스콘) ;
- 신현석 ((주) 포스콘) ;
- 최정완 (국가핵융합 연구소) ;
- 오종석 (국가핵융합 연구소)
- Published : 2009.07.14
Abstract
A technology based on thyristors will be used to manufacture the super-conducting coil AC/DC converters because of the low ratio of cost over installed power compared to a design based on GTO or similar technology. But phase-controlled converter suffers from fundamental disadvantage. They inject current harmonics into the input ac mains due to their nonlinear characteristics, thereby distort the supply voltage waveform, and demand reactive power from the associated ac power system at retarded angles. To overcome this disadvantage, in the case of two series converters at the DC side, connected to the same step-down transformer, apply for the sequence control. It is the most simple and efficient way to reduce the reactive power consumption at low cost. Analytical sequence control algorithm is suggested, the validity of the proposed scheme has been verified by experimental results with the small-scaled International Thermonuclear Experimental Reactor (ITER) Power Supply to minimize reactive power consumption.
Keywords