| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technology which avoids or suppresses damage to a rotating electric machine caused by the inverse rotation of a rotor which may be induced at plug-in operation when armature windings of the rotating electric machine are used as reactors of three-phase AC power supplies, in a hybrid power supply system. <P>SOLUTION: During plug-in operation, a first winding 12A, a third winding 12C and a second winding 12B which function as the armature windings for feeding R-phase currents of the three-phase rotating electric machine 10 are connected to terminals 30R, 30S and 30T, respectively, which feed phase currents of R, S and T of the three-phase power supplies 30, and the S-phase current and the T-phase current at normal operation are replaced with each other. By this, a field system 14 is intentionally inversely rotated. An inverse rotation prevention mechanism is arranged at the field system 14. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
