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은석준(Seog-Jun Eun),최종우(Jong-Woo Choi),김흥근(Heung-Geun Kim) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
Islanding of PV systems can cause a variety of problems and must be prevented. However, if the real and active powers of RLC load and PV system are closely matched, islanding detection by passive methods becomes difficult. Active methods enables islanding detection by forcing the frequency of the voltage in the island to drift up/down. This paper shows the simulation and comparision by Matlab for the active methods.
계통연계형 PV 시스템의 주파수 변동에 의한 새로운 단독운전 검출기법
은석준(Seog-Jun Eun),최종우(Jong-Woo Choi),김흥근(Heung-Geun Kim) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
PV system's islanding occurs when the uitilty grid is removed but local sources continue to operate and provide power to local loads. Islanding is one of the serious problems in an electric power system connected with dispersed power sources. Also, this can present safety hazards and the possibility of damage to other electric equipments. If the real and reactive power of RLC load and PV system are closely matched, islanding detection by passive methods becomes difficult. Novel islanding detection method using frequency drift is proposed for grid-connected PV system.