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Robust quantitative speed control of a switched reluctance motor drive

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2 Author(s)
Hwu, K.I. ; Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan ; Liaw, C.M.

The robust quantitative speed control for a switched reluctance motor (SRM) drive is studied. The drive circuit with proper current control for the SRM motor is implemented. Since it is difficult to obtain an accurate dynamic model of the SRM drive via physical derivation, it is estimated through measurements at nominal case. A simple two-degree-of-freedom (2DOF) speed controller, using an inverse model approach, and its quantitative design procedure are presented. According to the estimated nominal dynamic model and the prescribed speed tracking and regulation control specifications, the parameters of the proposed 2DOF speed controller can be systematically solved. A robust controller, handling the performance improvement of the perturbed motor drive and considering the effect of the system transport delay, is developed. The effects of parameter uncertainties and disturbances on the control performance can be reduced significantly. After confirming the effectiveness of the designed speed controller by simulation results, its performance is further demonstrated experimentally

Published in:

Electric Power Applications, IEE Proceedings -  (Volume:148 ,  Issue: 4 )