Patent ID: 8076894
Filing Date: 2011-12-13
Classification: B63H,H02P,Y02T

Abstract:
1. A superconductive rotating electric machine drive control system comprising: a synchronous rotating electric machine that has a superconductive field winding and a copper armature winding or a superconductive armature winding; a power unit provided as a power supply unit that supplies power to the synchronous rotating electric machine or as a load unit that receives power from the synchronous rotating electric machine; an armature-side power converting device that converts electric power exchanged between the synchronous rotating electric machine and the power unit; a field power supply that supplies a field current to the synchronous rotating electric machine; a field-side power converting device that controls the current supplied from the field power supply to the superconductive field winding; an unified controller that coordinately controls a direct or alternating current flowing in the superconductive field winding and the copper armature winding or superconductive armature winding; and a refrigerating unit that cools down the superconductive field winding or both the superconductive field winding and the superconductive armature winding to a very low temperature, wherein, when the synchronous rotating electric machine is used as a synchronous motor, the unified controller performs a control operation so that a field current I where I