A permanent magnet (PM) machine includes a plurality of reconfigurable fault condition mechanisms disposed within a stator core portion, the plurality of reconfigurable fault condition mechanisms together automatically reconfigurable to reduce fault currents and internal heat associated with the PM machine...http://www.google.com/patents/US7605503?utm_source=gb-gplus-sharePatent US7605503 - Fault-tolerant permanent magnet machine with reconfigurable stator core slot opening and back iron flux paths
