@article{kabir_jaffar_wan_husain_2019, title={Design, Optimization, and Experimental Evaluation of Multilayer AC Winding for Induction Machine}, volume={55}, ISSN={["1939-9367"]}, DOI={10.1109/TIA.2019.2910775}, abstractNote={This paper presents the design characterization, optimization, and experimental validation of a multilayer ac winding that provides a 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 efficiency/IE3 benchmark machine using grid multiobjective genetic algorithm (GMGA) and a prototype has been built. Performance of the designed motor has been verified with both FEA and experiments. Evaluation under IEEE 112 test standard demonstrates that by only updating its stator winding design, the designed motor can achieve IE4 class efficiency under the same frame size and cooling type as its IE3 class benchmark.}, number={4}, journal={IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS}, author={Kabir, Md Ashfanoor and Jaffar, Mohamed Zubair M. and Wan, Zhao and Husain, Iqbal}, year={2019}, pages={3630–3639} }
 @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{wan_husain_2017, title={Design of a flux switching transverse flux machine based on generalized inductance analysis}, DOI={10.1109/iemdc.2017.8002333}, abstractNote={This paper is dedicated to studying the inductance of Transverse Flux Machines (TFMs). The high inductance of TFMs causes low power factor, high armature reaction, high core loss, and core saturation that limits available torque. This paper aims to conduct a quantitative study on various components of TFM inductance through analytical equations and 3-D finite element analysis (FEA) to show the reasons for, and the effects of, TFM's high inductance. The study finds that even though the high inductance and low power factor are unavoidable in TFM because of its unique winding structure, there are design methods to mitigate this issue. Finally, utilizing the proposed methods, a novel flux switching TFM (FS-TFM) is designed that achieves reduced inductance and improved power factor.}, booktitle={2017 IEEE International Electric Machines and Drives Conference (IEMDC)}, author={Wan, Z. and Husain, I.}, year={2017} }
 @inproceedings{wan_husain_2017, title={Design, analysis and prototyping of a flux switching transverse flux machine with ferrite magnets}, DOI={10.1109/ecce.2017.8095929}, abstractNote={This paper presents a novel Flux Switching Transverse Flux Machine (FS-TFM) topology. This new topology is well suited to use low cost ferrite magnets in a flux focusing design to achieve high torque density. An electric scooter traction motor featuring the proposed topology is designed using soft magnetic composites through 3D finite element analysis. Design optimization and analysis are conducted regarding cogging torque, efficiency, power factor, and demagnetization. The designed FS-TFM has extremely low cogging torque, high torque density even with ferrite magnets, and moderate power factor. A prototype motor is under construction to verify the motor performance through experimental evaluation. Benchmark comparison shows the proposed topology is promising for low-cost, direct-drive applications.}, booktitle={2017 ieee energy conversion congress and exposition (ecce)}, author={Wan, Z. and Husain, I.}, year={2017}, pages={1227–1233} }
 @inproceedings{wan_ahmed_husain_muljadi_2015, title={A novel transverse flux machine for vehicle traction aplications}, DOI={10.1109/pesgm.2015.7286494}, abstractNote={A novel transverse flux machine topology for electric vehicle traction application using ferrite magnets is presented in this paper. The proposed transverse flux topology utilizes novel magnet arrangements in the rotor that are similar to Halbach-array to boost flux linkage; on the stator side, cores are alternately arranged around a pair of ring windings in each phase to make use of the entire rotor flux that eliminates end windings. Analytical design considerations and finite element methods are used for an optimized design of a scooter in-wheel motor. Simulation results from Finite Element Analysis (FEA) show the motor achieved comparable torque density to conventional rare-earth permanent magnet machines. This machine is a viable candidate for direct drive applications with low cost and high torque density.}, booktitle={2015 ieee power & energy society general meeting}, author={Wan, Z. and Ahmed, A. and Husain, I. and Muljadi, E.}, year={2015} }
 @inproceedings{ahmed_wan_husain_2015, title={Permanent magnet transverse flux machine with overlapping stator poles}, DOI={10.1109/ecce.2015.7309770}, abstractNote={A Transverse Flux Machine (TFM) topology with ring winding configuration is proposed. A novel approach for stator pole configuration is presented that ensures lower leakage between adjacent poles. The unique stator pole configuration permits an overlapping region between adjacent stator poles resulting in a significant improvement in space utilization that helps attain higher torque-to-volume ratio. In addition, the innovative pole design reduces the end winding length which helps reduce the copper mass. Simulation results are presented based on 3D Finite Element Analysis (FEA). Significant performance improvement was achieved compared to similar transverse flux machines.}, booktitle={2015 ieee energy conversion congress and exposition (ecce)}, author={Ahmed, A. and Wan, Z. and Husain, I.}, year={2015}, pages={791–798} }