Multi-Objective Tradeoffs in the Design Optimization of a Brushless Permanent-Magnet Machine With Fractional-Slot Concentrated Windings
Format of Original
Institute of Electrical and Electronics Engineers (IEEE)
IEEE Transactions on Industry Applications
In this paper, a robust parametric model of a brushless permanent magnet machine with fractional-slot concentrated windings, which was developed for automated design optimization is presented. A computationally efficient finite-element analysis method was employed to estimate the dq-axes inductances, the induced voltage and torque ripple waveforms, and losses of the machine. A method for minimum effort calculation of the torque angle corresponding to the maximum torque per ampere load condition was developed. A differential evolution algorithm was implemented for the global design optimization with two concurrent objectives of minimum losses and minimum material cost. An engineering decision process based on the Pareto-optimal front for 3,500 candidate designs is presented together with discussions on the tradeoffs between cost and performance. One optimal design was finally selected, prototyped and successfully tested.
Zhang, Peng; Sizov, Gennadi Y.; Li, Muyang; Ionel, Dan M.; Demerdash, Nabeel; Stretz, Steven J.; and Yeadon, Alan W., "Multi-Objective Tradeoffs in the Design Optimization of a Brushless Permanent-Magnet Machine With Fractional-Slot Concentrated Windings" (2014). Electrical and Computer Engineering Faculty Research and Publications. 205.
ADA Accessible Version
Accepted version. IEEE Transactions on Industry Applications, Vol. 50, No. 5 (September-October 2014): 3285-3294. DOI. © 2014 The Institute of Electrical and Electronics Engineers. Used with permission.