Title :
Energy-efficient C-dump converters for switched reluctance motors
Author :
Mir, Sayeed ; Husain, Iqbal ; Elbuluk, Malik E.
Author_Institution :
Dept. of Electr. Eng., Akron Univ., OH, USA
fDate :
9/1/1997 12:00:00 AM
Abstract :
Two energy-efficient converter topologies, derived from the conventional C-dump converter, are proposed for switched reluctance motor (SRM) drives. The proposed topologies overcome the limitations of the conventional C-dump converter, and could reduce the overall cost of the SRM drive. The voltage ratings of the dump capacitor and some of the switching devices in the proposed converters are reduced to the supply voltage (Vdc) level compared to twice the supply voltage (2V dc) in the conventional C-dump converter. Also, the size of the dump inductor is considerably reduced. The converters have simple control requirements, and allow the motor phase current to freewheel during chopping mode. Simulation and experimental results of the converters are presented and discussed
Keywords :
capacitors; inductors; power convertors; reluctance motor drives; switching circuits; chopping mode; cost reduction; dump capacitor; dump inductor size reduction; energy-efficient C-dump converters; motor phase current freewheeling; switched reluctance motor drives; voltage ratings; Circuit topology; Commutation; Energy efficiency; Pulse width modulation converters; Reluctance machines; Reluctance motors; Servomotors; Switching converters; Torque converters; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
