Problems related to Islanding Protection of Distributed Generation in Distribution Network

In this paper, the problems related to islanding detection in distribution network with distributed generation are described. Typical methods for islanding detection and needs for protection coordination are discussed. Example simulations are performed in a PSCAD environment. The results for the simulations reveal certain problems. As expected, the theoretical case with power balance results in sensitivity problems. The possibility of nuisance trippings is also observed. Some novel methods are also ideated during the simulations.

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