Kevin (Hua) Bai

Research Interests

Power Electronics with Motor Drive Systems

High Power-density DC/DC Converters

Battery Management Systems

Electric Vehicles



B.S. Electrical Engineering, Tsinghua University, P.R., China 2002

M.S. Electrical Engineering & Power Electronics, Tsinghua University, P.R., China 2007

Ph.D. Electrical Engineering & Power Electronics, Tsinghua University, P.R., China 2007

Postdoctoral Fellow Power Electronics, University of Michigan, Dearborn, MI 2010



Assistant Professor, Kettering University, Flint, MI, 2010-present

Research Scientist, University of Michigan, Dearborn, MI, 2009-2010

Postdoctoral Fellow, University of Michigan, Dearborn, MI, 2007-2009


Research Activities

Design a Solar based Bidirectional Battery Charging Station for Electric Vehicles, CZAR Power Ltd, 2015

The Next-generation High-efficiency Battery Charger for Electric Vehicles, Hella Coporate Center USA Inc, 2015

Design a Wide-bandgap Device Based 720V/380V 5kW DC/DC Converter, Bosch LLC and GaN Systems Inc, 2014

Design A High-efficiency Fast Charger for Electric Vehicle,  Derindere Motorlu Araclar, 2014

Design Sinusoidal Control for BLDC Motor Drive, APES, 2014

Design a Wide-bandgap Device Based 720V/380V 5kW DC/DC Converter, Bosch LLC, 2014

Variable Switching Frequency PWM for Electric Motor Drive System in EVs/PHEVs, for Chrysler, LLC, 2013

Design a 90kW Motor Drive System, for Broad Ocean Technologies, LLC, 2013-2014

Designing the Electric Powertrains of Mahindra Scooters, for Mahindra, 2012-2013

Functionality Test of A 160kW DC/AC Inverter, for FEV, 2012

2.5kW 365V/12V DC/DC Converter for PHEV, for Chrysler LLC, 2012

Development of Control Board and Gate Drive Board for 55kW Traction Inverter, for SinoEV, 2012

12V/1kW Motor Drive System, for Tenneco, 2011-2012

High Efficiency Battery Charger for PHEV, for Magna E-car, 2011-2012

11kW Power Factor Correction Controller, for Magna E-car, 2011

Impact of Charging Algorithms on Battery lifetime, 2011

A working table-top model and a virtual lab, KEEN Foundation, 2014

Control Algorithm Implementation and Experimental Verification of An In-wheel Motor for Electric Vehicle, Denso International North America, 2014

Na4Mn9O18 cathode material for sodium ion battery in aqueous system, Fu-Xin Energy Technology, 2014


Selected Publications

Philip Mike Johnson and Hua Bai, “Back-Emf Based Sensorless Control using the Hijacker Algorithm for full speed range of the motor drive in electrified automobile systems”, Accepted by IEEE Transactions on Transportation Electrification and could be searched online.

Chen Duan, Hua Bai, Wei Guo and Zhong Nie, “Design of A 2.5kW 400V/12V High-Efficiency DC/DC Converter Using A Novel Synchronous Rectification Control for Electric Vehicles”, Accepted by IEEE Transactions on Transportation Electrification and could be searched online.

Hua BAI and Chris Mi, “Transients of Modern Power Electronics”, Willey Publisher, Britain, September, 2011, ISBN: 978-0-470-68664-5.

Hua Bai, et al, “Design of A High-Efficiency Minimum-Torque-Ripple 12V/1kW 3-Phase BLDC Motor Drive System for Diesel Engine Emissions Reductions”, IEEE Transactions on Vehicular Technology, vol.63, no.7,  2014, pp. 3107-3115.

Chenguang Jiang, Chen Duan and Hua Bai, “Design of A Zero-Voltage-Switching Large-Air-Gap Wireless Charger with Low Electrical Stress for Plug-in Hybrid Electric Vehicles”, IET Power Electronics, vol.6, no.9, 2013, pp. 1742 – 1750.

Hua Bai, Allan Taylor, Wei Guo, et al, “Design of An 11kW Power Factor Correction and 10kW ZVS DCDC Converter For A High-efficiency Battery Charger in Electric Vehicles ”, IET Power Electronics, vol.5, no.9, 2012, pp.1714-1722.

Xuesong Wang, Hua Bai, Zhengming Zhao, and Liqiang Yuan, “Mathematical Models of System-level Safe Operational Area of the Power Electronics Systems in PHEVs”, IEEE Transactions on Vehicular Technology, vol.60, no.9, 2011, pp.4288-4298.

Sideng Hu, Zhengming Zhao, Hua Bai, and Liqiang Yuan, “An Enhanced DC Pre-excitation with Effective Flux-Linkage Control for the High-Power Induction Motor Drive System”, IEEE Transactions on Power Electronics, vol.26, no.9, 2011, pp.2375-2380.

Hua BAI, Ziling Nie and Chris Mi, “A Model Based Dead-band Compensation for the Dual Active Bridge Isolated Bidirectional DC-DC Converter”, IEEJ Transactions on Electrical and Electronic Engineering, 2011, 6: 517-524.

Hua Bai, Chris Mi, and Chris Semeanson, “Modeling, Design and Optimization of a Fast Charger for Plug-in Hybrid Electric Vehicles”, IET Electrical System in Transportation, vol.1, no.1, 2011, pp. 3-10.

Hua Bai, Ziling Nie, and Chunting Mi, “Experimental Comparison of Traditional Phase-Shift Control, Dual-Phase-Shift Control, and Enhanced Model Based Control of Isolated Bidirectional DC- DC Converters,” IEEE Trans. on Power Electronics, vol.25, no.6, 2010 , pp. 1444-1449.

Hua Bai, Sanbo Pan, Chris Mi, Sonya Gargies, and Tim Lin, “A Functional Model of Silicon Carbide JFET and its Use in the Analysis of Switching-transient and Impact of Gate Resistor, Miller Effect, and Parasitic Inductance”, International Journal of Power Electronics, vol. 2, no.2, 2010, pp.164-175.

H. Bai, Z.Zhao, C. Mi, “Framework and Research Methodology of Short-Timescale Pulsed Power Phenomena in High Voltage and High Power Converters”, IEEE Trans. on Industrial Electronics, vol. 56, no. 3, 2009, pp. 805-816.

Chunting Mi, Hua Bai, Chongwu Wang, and Sonya Gargies, “The Operation, Design, and Control of Dual H-Bridge Based Isolated Bidirectional DC-DC Converter,” IET Power Electronics, vol. 1, no. 3, 2008, pp. 176-187.

Hua BAI, Chunting Chris Mi, and Sonya Gargies, “The Short-Time-Scale Transient Processes in High-Voltage and High-Power Isolated Bidirectional DC-DC Converters”, IEEE Trans. on Power Electronics, vol. 23, no. 6, 2008, pp. 2648 – 2656.

Hua Bai and Mi C, “Eliminate Reactive Power and Increase System Efficiency of Isolated Bidirectional Dual-Active-Bridge DC–DC Converters Using Novel Dual-Phase-Shift Control”, IEEE Trans. on Power Electronics, vol. 23, no. 6, 2008, pp. 2905 – 2914


Contact Information

Email: hbai@kettering.edu

Phone: (810) 762-7958

Office: 2-703S AB