Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2015.07a
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- Pages.396-397
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- 2015
Study of Self-excited Resonant DC Circuit Breaker in Future DC Grid
향후 DC 전력 계통에서의 자려 공진 DC 차단기에 관한 연구
- Guo, Qinglei (Korea University) ;
- Yoon, Minhan (Seoul National University) ;
- Jang, Gilsoo (Korea University)
- Published : 2015.07.15
Abstract
With the increasing utilization of high-voltage, direct current (HVDC) transmissions in modern power systems, the DC grid is becoming a hot topic in academic and practical systems. In the DC grid, one of the urgent problems is the fast clearance of the DC fault in the DC network. One preferred method is to isolate the faulty point from the DC network in a short time. The DC circuit breaker is to interrupt the overcurrent after DC faults occur. In this paper, a self-excited resonant DC circuit breaker is an easy and cheap equipment to interrupt the DC fault current. The Mayr's arc model is utilized to simulate the self-excited DC circuit breaker in a DC test system in PSCAD/EMTDC.
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