Patents:

  1. D. Banerjee, C. Lai, J. Tian, A. Kundu, E. Ghosh, N. C. Kar, J. J. Sinkular, and L. V. Iyer, “Multilevel Motor Drive with Gallium Nitride Power Switches,” Submitted U. S. Provisional Patent, Application No. 62/681,244, 2018.
  2. J. Tian, C. Lai, J. Cai, N. C. Kar, J. J. Sinkular, and L. V. Iyer, “Electric Motor Drive with Gallium Nitride Power Switches,” Submitted U. S. Provisional Patent, Application No. 62/633,455, 2018.

Journal Papers:

  1. G. Feng, C. Lai, J. Tjong, and N. C. Kar, Exploring the Phase Angle of Measured Speed Harmonic for Efficient Permanent Magnet Temperature Estimation of PMSMs,” Submitted to the IEEE Transactions on Energy Conversion, 2018.
  2. W. Li, G. Feng, H. Dhulipati, J. Tjong, and N. C. Kar, “A Comparative Study of Dual-Three-Phase Permanent Magnet Motors with Different Phase Shifts for Direct-Drive Electric Vehicles,” Submitted to the IEEE Transactions on Transportation Electrification, 2018.
  3. M. Zhu, W. Hu, and N. C. Kar, “The State of Charge Estimation of LiFePO4 Power Battery Based on Dynamic Bayesian Network,” Submitted to the International Journal of Environmental Studies (Taylor & Francis), 2018.
  4. C. Lai, G. Feng, J. Tian, A. Balamurali, and N. C. Kar, “DC Link Measurements based Maximum Efficiency Modelling and Control of PMSM Drive System Using a Novel Gradient Descent Algorithm,” Submitted to the IEEE Transactions on Industrial Electronics, 2018.
  5. F. Ahmed, E. Ghosh, S. Mukundan, H. Dhulipati, and N. C. Kar, “LPTN and FEA Modeling for Thermal Characterization of an Interior Permanent Magnet Synchronous Motor (IPMSM) for Electric Vehicle Application,” Submitted to the International Journal of Sustainable Energy (Taylor & Francis), 2018.
  6. G. Feng, C. Lai, W. Li, J. Tjong, and N. C. Kar, “Noninvasive and Efficient Maximum Torque per Current Square Control for Interior Permanent Magnet Synchronous Machines,” Under revision, the IEEE Transactions on Power Electronics, 2018.
  7. H. Dhulipati, S. Mukundan, C. Lai, K. Mukherjee, J. Tjong and N. C. Kar, “Multiple Reference Frame Theory based Simplified Electromagnetic Torque Computation for Concentrated Wound PMSM”, Under revision, IEEE Transactions on Energy Conversion, 2018.
  8. S. Mukundan, H. Dhulipati, C. Lai, K. Mukherjee and N. C. Kar, “Design and Optimization of Traction IPMSM with Asymmetrical Damper Bars for Integrated Charging Capability using Evolutionary Algorithm,” Under revision, IEEE Trans. on Energy Conversion, 2018.
  9. G. Feng, C. Lai, J. Tian, and N. C. Kar, “Multiple Reference Frame-based Torque Ripple Minimization for PMSM Drive under both Steady-state and Transient Conditions,” Under revision, IEEE Transactions on Power Electronics, 2018.
  10. K. L. V. Iyer, C. Lai, S. Mukundan, H. Dhulipati, K. Mukherjee, and N. C. Kar, “Investigation of Interior Permanent Magnet Motor with Dampers for Electric Vehicle Propulsion and Mitigation of Saliency Effect during Integrated Charging Operation,” accepted for publication in the IEEE Transactions on Vehicular Technology, 2018.
  11. A. Balamurali, G. Feng, C. Lai, J. Tjong and N. C. Kar, “Maximum Efficiency Control of PMSM Drives Considering Harmonic Losses using Gradient Descent Algorithm Based on DC Power Measurement,” accepted for publication in the IEEE Transactions on Energy Conversion, 2018.
  12. G. Feng, C. Lai, M. Kelly, and N. C. Kar, “Dual Three-phase PMSM Torque Modelling and Maximum Torque per Peak Current Control through Optimized Harmonic Current Injection,” accepted for publication in the IEEE Transactions on Industrial Electronics, 2018.
  13. Y. He, M. Mehdi, E. J. Hilinski, A. Edrisy, A. Mollaeian, S. Mukundan, and N. C. Kar, “Evaluation of Local Anisotropy of Magnetic Response from Non-Oriented Electrical Steel by Magnetic Barkhausen Noise,” accepted for publication in the IEEE Transactions on Magnetics, 2018.
  14. G. Feng, C. Lai, and N. C. Kar, “Speed Harmonic based Modeling and Estimation of Permanent Magnet Temperature for PMSMs Using a Kalman Filter,” accepted for publication in the IEEE Transactions on Industrial Informatics, 2018.
  15. S. Mukundan, H. Dhulipati, J. Tjong, and N. C. Kar, “Parameter Determination of PMSM using Coupled Electromagnetic and Thermal Model Incorporating Current Harmonics,” accepted for publication in the  IEEE Transactions on Magnetics, 2018.
  16. M. Zhu, W. Hu, S. Mukundan, and N. C. Kar, “Multi-Sensor Fusion Based Permanent Magnet Demagnetization Detection in Permanent Magnet Synchronous Machines,” accepted for publication in the IEEE Transactions on Magnetics, 2018.
  17. K.L.V. Iyer, C. Lai, S. Mukundan, H. Dhulipati, K. Mukherjee, and N. C. Kar, “Investigation of a Six-phase Interior Permanent Magnet Synchronous Machine for Integrated Charging and Propulsion in EVs,” in press, SAE International Journal of Alternative Powertrains, 2018.

Conference Papers:

  1. C. Lai, G. Feng, M. Kelly, N. C. Kar, “Multiple parameter estimation of dual three-phase PMSM considering magnetic saturation and inverter nonlinearity”, accepted, the Eighteenth Biennial IEEE Conference on Electromagnetic Field Computation, Hangzhou, China, 2018.
  2. F. Ahmed, P. Roy, G. Feng, and N. C. Kar, “CFD and LPTN Hybrid Technique to Determine Convection Coefficient in End-winding of TEFC Induction Motor with Copper Rotor,” accepted,  the IEEE Annual Conference of the IEEE Industrial Electronics Society, Washington, USA, 2018.
  3. M. Zhu, W. Hu, G. Feng, and N. C. Kar, “Vold‐Kalman Filtering Order Tracking Based Rotor Flux Linkage Monitoring in PMSM,” accepted, IEEE International Conference on Electrical Machines, Greece, 2018.
  4. G. Feng, C. Lai, W. Li, M. Kelly, and N. C. Kar, “Simultaneous Stator Winding and Permanent Magnet Temperature Estimation for Permanent Magnet Synchronous Machines,” accepted, IEEE International Conference on Electrical Machines, Greece, 2018.
  5. D. Alame, J. Wang, M. Azzouz, and N. C. Kar, “Impact Assessment of Electric Vehicle Charging on Distribution Transformers Including State-of-Charge,” Accepted for Presentation at the IEEE International Midwest Symposium on Circuits and Systems, Windsor, Ontario, Canada, 2018.
  6. F. Ahmed, E. Ghosh, S. Mukundan, H. Dhulipati, and N. C. Kar, “LPTN and FEA Modeling for Thermal Characterization of an Interior Permanent Magnet Synchronous Motor (IPMSM) for Electric Vehicle Application,” Presented at the Energy and Sustainability Conference, June 2018.
  7. M. Zhu, W. Hu, and N. C. Kar, “The State of Charge Estimation of LiFePO4 Power Battery Based on Dynamic Bayesian Network,” Presented at the Energy and Sustainability Conference, June 2018.
  8. D. Alame, M. Abdelkhalek, and N. C. Kar, “Assessing and Mitigating the Impacts of Electric Vehicle Battery Charging on Distribution Transformers and on Distribution Systems,” Presented at the Energy and Sustainability Conference, June 2018.
  9. W. Li, G. Feng, C. Lai, Z. Li, and N. C. Kar, “Demagnetization Analysis of Interior Permanent Magnet Machines Under Integrated Charging Operation,” Accepted, IEEE International Conference on Electrical Machines and Systems, South Korea, 2018.
  10. D. Banerjee, Z. Li, S. Mukundan, A. Balamurali, C. Lai, and N. C. Kar, “Online Parameter Estimation and Self Commissioning of Interior Permanent Magnet Motor Drive,” Accepted, IEEE International Conference on Electrical Machines and Systems, South Korea, 2018.
  11. Z. Li, G. Feng, C. Lai, and N. C. Kar, “Investigations of Online Parameter Estimation for Interior PMSMs Considering Current Injection and Machine Operating Conditions,” Accepted, IEEE International Conference on Electrical Machines and Systems, South Korea, 2018.
  12. H. Dhulipati, S. Mukundan, W. Li, and N. C. Kar, “Investigation of Phase Angle Displacements in Six-phase PMSM with Non-overlapping Windings for Reduced MMF Harmonics,” Accepted, IEEE International Conference on Electrical Machines and Systems, South Korea, 2018.
  13. J. Bo Tian, C. Lai, and N. C. Kar, “Review of Recent Progress on Gallium Nitride Transistor in Power Conversion Application,” Presented at the Energy and Sustainability Conference, June 2018.
  14. A. Mollaeian, M. Mehdi, E. Ghosh, A. Edrisy, S. Kim, J. Tjong, and N. C. Kar, “Investigation of Electromagnetic Torque Capability Reduction of Electric Machine due to Magnetic Property Deterioration of Laminations,” Accepted for Presentation at the IEEE International Conference on Magnetism, San Francisco, USA, 2018.
  15. H. Dhulipati, E. Ghosh, S. Mukundan, J. Tjong, and N. C. Kar, “Adagrad Algorithm based Optimal Slot-Pole Selection for Reduced Inductance Harmonics in Concentrated Wound Multiphase PMSM,” Presented at the IEEE International Magnetics Conference, Singapore, 2018.
  16. A. Balamurali, C. Lai, H. Dhulipati, V. Loukanov, and N. C. Kar, “Improved Analytical Eddy Current Loss Modelling Considering Carrier Harmonics towards Maximum Efficiency Control of PMSM- Drive Systems,” Presented at the IEEE International Magnetics Conference, Singapore, 2018.
  17. M. Zhu, W. Hu, S. Mukundan, and N. C. Kar, “Multi-Sensor Fusion Based Permanent Magnet Demagnetization Detection in Permanent Magnet Synchronous Machines”, Presented at the IEEE International Magnetics Conference, Singapore, 2018.
  18. Y. He, M. Mehdi, E. J. Hilinski, A. Edrisy, A. Mollaeian, S. Mukundan, and N. C. Kar, “Evaluation of Local Anisotropy of Magnetic Response from Non-Oriented Electrical Steel by Magnetic Barkhausen Noise,” Presented at the IEEE International Magnetics Conference, Singapore, 2018.
  19. S. Mukundan, H. Dhulipati, J. Tjong, and N. C. Kar, “Parameter Determination of PMSM using Coupled Electromagnetic and Thermal Model Incorporating Current Harmonics,” Presented at the IEEE International Magnetics Conference, Singapore, 2018.