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|Title:||Optimization and evaluation of torque-sharing functions for torque ripple minimization in switched reluctance motor drives|
Cheng, K. W. Eric
|Subjects:||Genetic algorithm (GA)|
Switched reluctance motor (SRM) drives
Torque ripple minimization (TRM)
Torque-sharing function (TSF)
|Source:||IEEE transactions on power electronics, Sept. 2009, v. 24, no. 9, p. 2076-2090.|
|Abstract:||Two improved torque-sharing functions for implementing torque ripple minimization (TRM) control are presented in this paper. The proposed torque-sharing functions are dependent on the turn-on angle, overlap angle, and the expected torque. This study shows that for a given torque the turn-on angle and the overlap angle have significant effects upon speed range, maximum speed, copper loss, and efficiency. Hence, genetic algorithm is used to optimize the turn-on angle and the overlap angle at various expected torque demands operating under the proposedTRMcontrol in order to maximize the speed range and minimize the copper loss. Furthermore, four torque-sharing functions are used to derive the optimized results. At the same time, a fast and accurate online approach to compute the optimal turn-on and overlap angles is proposed. Therefore, this paper provides a valuable method to improve the performances of switched reluctance motor drives operating under TRM control.|
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|Appears in Collections:||EE Journal/Magazine Articles|
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