전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2013년도 추계학술대회 논문집
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- Pages.258-259
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- 2013
3상 불평형 계통에서의 상 전압 보상을 통한 Sag 및 Swell 검출
Sag & Swell Detection by Phase Voltage Compensation in 3-Phase Unbalanced Grid
- Kim, Min-Gi (Sungkyunkwan University) ;
- Kim, Jun-Gu (Sungkyunkwan University) ;
- Jung, Yong-Chae (Namseoul University) ;
- Won, Chun-Yuen (Sungkyunkwan University)
- 발행 : 2013.11.15
초록
Load connection or disconnection makes instantaneous sag & swell in 3-phase grid. When unbalance state occurs, between sensed phase voltage and actual phase voltage may have discrepancy. It makes difficult to detect accurate sag & swell, so it is hard to satisfy the standard for switching ESS system to UPS mode. In this paper, we analyzed unbalanced 3-phase voltage, and compensated the actual sag & swell magnitude.
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