@article{latif_agoro_jaffar_husain_2023, title={Control of a 4-Pole/2-Pole Electronic Pole-Changing Induction Motor for Traction Applications}, volume={59}, ISSN={["1939-9367"]}, DOI={10.1109/TIA.2023.3307090}, abstractNote={Pole-changing motors can be very useful for traction applications which require high torque at low speeds and an extended speed range of operation. The dual pole operation can be used to extract high torque during starting with a high pole configuration and an increased constant power region with a lower pole operation. The design and control of a 4-pole/2-pole induction motor is presented in this article where pole-transition can be performed on the fly through electronic control. The electronic pole-changing is augmented through controls that stabilizes the flux of the incoming pole of operation before initializing a change in torque commands. Torque and power characteristics of the pole changing motor are shown to have enhanced performance in the constant power region in comparison to the baseline motor. Appropriate torque and flux commands are used to experimentally demonstrate a smooth electronic pole-changing transition with minimum torque transients.}, number={6}, journal={IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS}, author={Latif, Taohid and Agoro, Sodiq and Jaffar, Mohamed Zubair M. and Husain, Iqbal}, year={2023}, month={Nov}, pages={6704–6714} }
 @article{latif_agoro_jaffar_husain_2023, title={Dynamic Loss Minimization Control of a 4-Pole/2-Pole Electronic Pole-Changing Induction Motor Using a Look-Up Table}, volume={59}, ISSN={["1939-9367"]}, DOI={10.1109/TIA.2023.3307054}, abstractNote={A pole-changing motor with dual pole configurations can operate over an extended torque-speed region of operation. The higher pole configuration can be used for high torque in the low-speed region of operation, whereas at higher speeds an enhanced constant power speed region can be obtained with the lower pole configuration. The pole-changing can be accomplished electronically by changing the current directions in certain windings by using an inverter. This article discusses the current and flux dynamics associated with pole changing and presents a controller for the 4-pole/2-pole induction motor that initiates a pole change from one pole configuration to another with a power loss minimization method when the operating region overlaps for the two pole configurations. Simulation and experimental results using a look-up table-based loss-minimization approach are provided to validate the control method. The electronic pole-changing control results demonstrate a smooth torque transition while minimizing the motor loss.}, number={6}, journal={IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS}, author={Latif, Taohid and Agoro, Sodiq and Jaffar, Mohamed Zubair M. and Husain, Iqbal}, year={2023}, month={Nov}, pages={6715–6725} }
 @article{latif_husain_2021, title={Design and analysis of an induction motor for an enhanced constant power region with electronic pole changing}, DOI={10.1109/IEMDC47953.2021.9449577}, abstractNote={Pole changing motors can be very useful for traction applications, which require high torque at low speeds and an extended speed range of operation. The dual pole operation can be used to extract high torque during starting with a high pole configuration and an increased constant power region with a lower pole operation. Although pole changing motors have been studied in the past, there is essentially no research related to how a motor can be optimized for improved performance in terms of the overall torque-speed characteristics of operation. In this paper, we discuss the design and analysis of a 4-pole/2-pole induction motor using the Finite Element Analysis and analytical computation tools in Motor-CAD software. An induction motor is designed and optimized for improved performance for the entire range of operation. Torque and power characteristics of the pole changing motor are shown to have enhanced performance in the constant power region in comparison to the baseline motor.}, journal={2021 IEEE INTERNATIONAL ELECTRIC MACHINES & DRIVES CONFERENCE (IEMDC)}, author={Latif, Taohid and Husain, Iqbal}, year={2021} }
 @article{latif_jaffar_husain_2021, title={Loss Minimization Control of an Electronic Pole Changing 4-pole/2-pole Induction Motor}, ISSN={["2329-3721"]}, DOI={10.1109/ECCE47101.2021.9595843}, abstractNote={A pole changing motor can operate in a dual pole configuration for high torque during low-speed operation with a higher pole configuration and an enhanced constant power speed region at higher speeds with a lower pole configuration. In these motors, electronic pole changing is accomplished by changing the currents in certain windings by using an inverter. Although pole-changing transition on the fly has been explored in literature, the specifics as to when a pole change is required is yet to be established. This paper discusses the control of a 4-pole/2-pole induction motor where the controller initiates a pole change from one pole configuration to another to minimize the power loss of the motor when the operating region overlaps for the two pole configurations. Results from Simulink based on parameters extracted from Motor-CAD are provided to validate the control method. The pole changing control results demonstrate a smooth torque transition while minimizing the motor loss. The open loop experimental results are also given.}, journal={2021 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE)}, author={Latif, Taohid and Jaffar, Mohamed Zubair M. and Husain, Iqbal}, year={2021}, pages={4097–4102} }