Patent ID: 8378617
Filing Date: 2013-02-19
Classification: H02P

Abstract:
1. A method of controlling current of a high-speed Switched Reluctance Motor (SRM) using an inverter circuit including a first switching element, a second switching element, a first diode, a second diode and a reactor, wherein: the first switching element and the first diode, the second diode and the second switching element are connected to a bridge circuit, and one end of the reactor is connected to a junction of the first switching element and the first diode, and a remaining end of the reactor is connected to a junction of the second diode and the second switching element; and excitation mode in which the first switching element is turned on the second switching element is turned on, free-wheeling mode- wherein in the excitation mode, the current of the high-speed SRM is sequentially controlled in maximum voltage mode and in counter electromotive voltage mode, and in PI control mode, and wherein in the maximum voltage mode, maximum voltage is applied in an interval from a point at which the switch is turned on to a point of rising interval time delay t