Patent ID: 8203302
Filing Date: 2012-06-19
Classification: H02P

Abstract:
1. A method of regulating the speed of a two-phase switched reluctance machine (TPSRM) rotor, the method comprising: selecting either a motoring mode or a braking mode of operation for the TPSRM; regulating the rotor speed, when the motoring mode is selected, using a control signal cooperatively produced by a speed control feedback loop and a current control feedback loop; and regulating the rotor speed, when the braking mode is selected, using a control signal produced by the current control feedback loop without the cooperation of the speed control feedback loop, wherein: the speed control feedback loop uses an established speed control signal and a signal indicative of the rotor's speed to dynamically adjust a first parameter governing the control signal, the current control feedback loop uses an established current control signal and a signal indicative of the current flowing through a stator winding of the TPSRM to dynamically adjust a second parameter governing the control signal, and the braking mode of operation converts the TPSRM's mechanical energy into electrical energy to produce a braking effect on the rotation of the rotor.