@inproceedings{kabir_jaffar_wan_husain_2017, title={Design and experimental evaluation of a multilayer AC winding configuration for sinusoidal MMF with shorter end-turn length}, DOI={10.1109/ecce.2017.8096966}, abstractNote={This paper presents the design and characterization of a multilayer AC winding configuration that provides high quality rotating MMF with reduced end-turn length. Harmonics in the airgap MMF have been characterized with standard winding functions and verified using finite element analysis (FEA). The multilayer winding design is optimized for a commercial premium/IE3 efficiency class benchmark machine and a prototype has been built. Performance of the designed motor has been verified with both FEA and experiments. Experimental evaluation under IEEE 112 standard shows that the designed motor can yield higher torque per unit Cu-loss and efficiency compared to its benchmark.}, booktitle={2017 ieee energy conversion congress and exposition (ecce)}, author={Kabir, M. A. and Jaffar, M. Z. M. and Wan, Z. and Husain, I.}, year={2017}, pages={5834–5839} }
 @inproceedings{jaffar_husain_2017, title={Path permeance based analytical inductance model for IPMSM considering saturation and slot leakage}, DOI={10.1109/iemdc.2017.8002132}, abstractNote={The magnetizing q-axis inductance of an optimally designed interior permanent magnet machine (IPM) exhibits a saturating behavior as the current excitation increases. This research work proposes an analytical method to study this behavior by expressing armature reaction as the product of stator MMF and flux path permeance function. The path permeance is a function of both the lamination geometry and the saturated conditions in steel regions. In slotted IPMs, the stator tooth conducts both the magnetizing flux and slot leakage flux, which superpose with each other to determine the saturation condition. This subsidiary phenomenon is investigated in detail using Ampere's law and flux continuity law. Two models are developed and applied to IPMs with single layer and double layer rotor topologies. The results are validated with FEA and a single variable optimization of slot dimensions is illustrated.}, booktitle={2017 IEEE International Electric Machines and Drives Conference (IEMDC)}, author={Jaffar, M. Z. M. and Husain, I.}, year={2017} }