대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2005년도 추계학술대회 논문집 전력기술부문
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- Pages.255-257
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- 2005
DSP를 이용한 변류기 보상 알고리즘
CT compensating algorithm Based on a Digital Signal Processor
- 강용철 (전북대학교) ;
- 이병은 (전북대학교) ;
- 소순홍 (전북대학교) ;
- 황태근 (전북대학교) ;
- 이지훈 (전북대학교) ;
- 차선희 (전북대학교) ;
- 김연희 (전북대학교) ;
- 장성일 (한국IED Eng.)
- Kang, Yong-Cheol ;
- Lee, Byung-Eun ;
- So, Soon-Hong ;
- Hwang, Tae-Keun ;
- Lee, Ji-Hoon ;
- Cha, Sun-Hee ;
- Kim, Yeon-Hee ;
- Jang, Sung-Il
- 발행 : 2005.11.18
초록
This paper proposes a compensating algorithm of a measurement torrent transformer (CT) using DSP. The core flux is calculated and then magnetizing current is estimated in accordance with the flux-magnetizing current curve. The core loss current is obtained with the core loss resistance and the secondary voltage. The correct secondary current is estimated by adding the exciting current to the measured secondary current. The performance of the proposed algorithm was tested using EMTP generated data. The experiment on the real CT was conducted using the prototype compensated system based on a digital signal processor. The results indicate that the algorithm can increase the accuracy of the measurement CT significantly.
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