DOUBLE FED INDUCTION GENERATOR (DFIG) CONVERTER AND METHOD FOR IMPROVED GRID FAULT RIDETHROUGH

摘要

A double fed induction generator (DFIG) converter, methods and computer readable mediums are presented in which rotor side current spikes are attenuated by selectively activating at least one series damping circuit to conduct current through a series damping circuit resistance coupled in series between one or more DFIG rotor leads and a grid side converter in response to a grid fault occurrence or a grid fault clearance, and selectively bypassing the series damping circuit resistance after activating the series damping circuit.

主权项

1. A method of operating a converter for a double fed induction generator (DFIG), the method comprising:
selectively activating at least one series damping circuit to conduct current through a series damping circuit resistance coupled in series between one of a plurality of rotor leads of a rotor of the DFIG and a grid side converter in response to a grid fault occurrence or a grid fault clearance; and selectively bypassing the series damping circuit resistance to prevent current flow in the series damping circuit resistance a time period after activating the at least one series damping circuit.