WIND-POWERED SQUIRREL-CAGE INDUCTION GENERATOR WITH LOW VOLTAGE RIDE THROUGH

摘要

An apparatus for generating electricity from wind includes a wind-driven rotor; a transformer; a squirrel-cage induction generator, and a grid clutch. The squirrel cage induction generator includes a squirrel cage rotor driven by the wind-driven rotor for providing power to a utility grid via the transformer. The grid clutch disengages the squirrel-cage induction generator from the grid in response to a voltage sag and controls a speed of the squirrel-cage rotor during the voltage sag.