| 摘要 |
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. |
