Title :
A choppingless converter for switched reluctance motor with unity power factor and sinusoidal input current
Author :
Rim, Geun-Hie ; Kim, Won-Ho ; Kim, Eun-Soo ; Lee, Ki-Chul
Author_Institution :
Korea Electrotechnol. Res. Inst., Changwon, South Korea
Abstract :
This paper describes a new converter topology for switched reluctance motor drives. The new topology consists of a pair of boost-buck power converters and a machine converter. The boost converter lets the system deliver sinusoidal input current and enhances the DC source voltage having the capability of fast current rise/decay of the stator windings. It also provides DC voltage regulation. The buck converter is used to regulate the DC source voltage responding to the motor speed variations. The wide pre-voltage regulation by the two power conversion stages eliminates the high voltage-choppings to control the stator winding currents. This enables the machine-drive converter to work in single pulse-current mode, hence, removing the switching losses
Keywords :
electric current control; electric drives; machine control; power convertors; power factor; reluctance motors; stators; switching circuits; voltage control; DC source voltage; DC voltage regulation; boost-buck power converters; choppingless converter; fast current decay; fast current rise; machine converter; motor speed variations; pre-voltage regulation; single pulse-current mode; sinusoidal input current; stator windings current control; switched reluctance motor drives; switching losses removal; unity power factor; Buck converters; DC motors; Energy conversion; Inductance; Power conversion; Reactive power; Reluctance machines; Reluctance motors; Stator windings; Switching converters; Switching loss; Topology; Torque; Voltage; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, PESC '94 Record., 25th Annual IEEE
Conference_Location :
Taipei
Print_ISBN :
0-7803-1859-5
DOI :
10.1109/PESC.1994.349690
