Publisher : The Korean Institute of Power Electronics
DOI : 10.6113/TKPE.2015.20.6.540
Title & Authors
A Novel Islanding Detection Scheme without Non Detection Zone Jo, Yeong-Min; Kim, Dong-Gyun; Cho, Sang-Yoon; Song, Seung-Ho; Choy, Ick; Lee, Young-Kwoun; Choi, Ju-Yeop;
Unintentional islanding results in safety hazards, reliability, and many other issues. Therefore, the islanding detection of a power conditioning system of a distributed generation, such as a grid-connected photovoltaic inverter, is a key function for standard compliance. Currently, many anti-islanding schemes have been examined, but existing anti-islanding schemes have poor power quality and non-detection zone issues. Therefore, this study analyzes the non-detection zone in a more deliberate manner than the existing analysis of the non-detection zone and proposes a new anti-islanding scheme, which has negligible power quality degradation and no non-detection zone. Simulation and experimental results validate that the proposed scheme shows much better performance than other existing schemes.
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