Patent ID: 7663849

Claim:
A fault protection system for use with a permanent magnet (PM) generator, the fault protection system comprising: a monitoring device for monitoring a first signal corresponding to a first phase of power generated by the PM generator and a second signal corresponding to a second phases of power generated by the PM generator, the first signal and the second signal each being a function of at least one of current and voltage; overload and short-circuit protection means for detecting an overload or short-circuit fault condition based on the first signal and for generating a first fault condition signal if an overload or short-circuit fault condition is detected; unbalanced protection means for detecting an unbalanced condition based on the first signal and the second signal and for generating a second fault condition signal if an unbalanced fault condition is detected; and control means for controlling mechanical power provided to the PM generator as a function of the first fault condition signal and second fault condition signal.