Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- summer
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- Pages.1477-1479
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- 2004
Analysis of Active Islanding Dectetion Methods for a Single-phase Photovoltaic Power Conditioning Systems
단상 계통연계형 PCS의 단독운전 검출기법 비교 분석
- Jung Youngseok (Korea Institute of Energy Research) ;
- So Jeonghun (Korea Institute of Energy Research) ;
- Yu Gwonjong (Korea Institute of Energy Research) ;
- Kang Gihwan (Korea Institute of Energy Research) ;
- Choi Jaeho (Chungbuk National Univ.)
- Published : 2004.07.14
Abstract
Increasing numbers of photovoltaic arrays are being connected to the power utility through the power conditioning systems (PCS). This has raised potential problems of network protection. If, due to the action of the PCS, the local network voltage and frequency remain within regulatory limits when the utility is disconnected, then islanding is said to occur. In this paper, the representative methods to prevent the islanding are described and a PSIM-based model and analysis of the reactive power variation (RPV) method are presented. A novel phase detector using the all-pass filter and digital phase locked loop (DPLL) is proposed especially for the single-phase PCS. Finally, this paper provides the simulation and experimental results with a single-phase 3kW prototype PCS. Islanding test method of IEEE Std. 929-2000 was performed for verification.
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