Patent ID: 7309974
Filing Date: 2007-12-18
Classification: F01D,F05D,H02P,Y02T

Abstract:
1. A method of reluctance power production using a synchronous reluctance machine, said method comprising the steps of: coupling a prime mover with a synchronous reluctance machine, wherein said synchronous reluctance machine is electrically coupled with a power converter and driven by said prime mover; measuring at least one of a DC link voltage for comparison with a commanded DC link voltage V generating reluctance power by reason of different magnetic reluctance between direct and quadrature axes of the driven synchronous reluctance machine and the control of said power converter using said measured DC link voltage, AC capacitor voltage and AC inductor current; said method further comprising the steps of: where said synchronous machine comprises a salient-pole synchronous machine, monitoring a main field flux in said salient-pole synchronous reluctance machine to detect a loss of rotor field; monitoring said prime mover engaged with said salient-pole synchronous machine to detect machine rotor rotation; and controlling said power converter to generate reluctance power from said salient-pole synchronous machine when there is a loss of rotor field and machine rotor rotation is detected.