Title :
Novel Active Islanding Detection Method for Distributed Power Generation System
Author :
Chiang, Wen-Jung ; Jou, Hurng-Liahng ; Wu, Jinn-Chang ; Feng, Ya-Tsung
Author_Institution :
Dept. of Electr. Eng., Nat. Kaohsiung Univ. of Appl. Sci., Kaohsiung
Abstract :
A novel active islanding detection method for a distributed power generation system is proposed in this paper. The distributed power generation system includes a DC power source and a grid-connected power converter. The grid-connected power converter acts as a virtual inductor as the frequency is slightly higher than the fundamental frequency of utility voltage. The distributed power generation system can only supply power to the load as the utility power interruption occurs. At this instant, the load voltage will be changed in amplitude or frequency due to the operation of virtual inductor. Hence, the proposed method can immediately detect the islanding operation.
Keywords :
distributed power generation; fault diagnosis; power convertors; power grids; power system interconnection; DC power source; active islanding detection method; distributed power generation system; grid-connected power converter; utility power interruption; virtual inductors; Distributed power generation; Fluctuations; Frequency conversion; Inductors; Power generation; Power supplies; Power system protection; Solar power generation; Voltage; Wind energy generation; distributed generation system; islanding; power converter;
Conference_Titel :
Power System Technology, 2006. PowerCon 2006. International Conference on
Conference_Location :
Chongqing
Print_ISBN :
1-4244-0110-0
Electronic_ISBN :
1-4244-0111-9
DOI :
10.1109/ICPST.2006.321528
