Detection of islanding in power grids

Details Detection of islanding in power grids Detection of islanding in power grids

H - Electricity

02

J

H02J 13/00 (2006.01) F03D 11/00 (2006.01) H02J 3/38 (2006.01)

Patent

CA 2563479

A method for detecting islanding conditions in an electrical grid having a power line voltage includes monitoring a detectable signal (306) different from the power line voltage at a generating station (310), superimposing the detectable signal onto the power line voltage at a grid point (308) outside the generating station, and switching the generating station from a grid-connected mode of operation to an islanded mode of operation when the signal to which the detector (312) is responsive is determined to be absent.

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