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Establishment and control of a three-phase switched reluctance motor drive using intelligent power modules

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5 Author(s)
Chang, H.C. ; Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan ; Chen, C.H. ; Chiang, Y.H. ; Sean, W.Y.
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This study presents the establishment and control of a digital signal processor-based 5 kW/6000 rpm three-phase switched reluctance motor (SRM) drive. Two three-phase intelligent power modules are employed to construct its converter for achieving a compact power circuit. The motor winding inductance profile is first estimated, and it is used for performing the proper winding current switching control. In the developed ramp-comparison current control PWM scheme, in addition to the adequate feedback control, the current tracking error-adapted commutation instant tuning is made to yield improved current response and torque generating capability. As to the speed control, a feedback controller is augmented with a simple linear model following controller for yielding satisfactory speed tracking and regulation dynamic responses within a wide operation range. The driving performance of an established SRM drive is evaluated experimentally.

Published in:

Electric Power Applications, IET  (Volume:4 ,  Issue: 9 )