Patents & Publications

Patents:

  • “Fault-tolerant topology for multilevel T-type converters,”  U.S. Patent 10,658,920, issued May 19, 2020.
  • “Compact design of multilevel power converter systems,” U.S. Patent 10,658,941, issued May 19, 2020.
  • “Three-level two-stage decoupled active NPC converter,” U.S. Patent 10,581,342, issued Mar 03, 2020.
  • “Method for shutdown of an active neutral point clamped converter,” U.S. Patent 10,547,251, issued Jan 28, 2020.
  • “Method and system for operating a phase-leg of a three-level active neutral point clamped converter,” U.S. Patent 10,291,150, issued May 14, 2019.
  • “Methods and systems for operating hybrid power devices using driver circuits that perform indirect instantaneous load current sensing using stored I-V characteristics,” U.S. Patent 10,020,802, issued July 10, 2018.
  • “Modulator for a hybrid converter system,” U.S. Patent 9,979,322, issued May 22, 2018.
  • “Methods and systems for operating hybrid power devices using driver circuits that perform indirect instantaneous load current sensing,” U.S. Patent 9,722,581, issued Aug 01, 2017.
  • “Methods and systems for operating hybrid power devices using multiple current-dependent switching patterns,” U.S. Patent 9,397,657, issued July 19, 2016. 
     

Selected Journal Papers:

  • J. He, D. Zhang, and D. Pan, "PWM Strategy for MW-Scale “SiC+Si” Active NPC Converter in Electric Aircraft Propulsion Applications," IEEE Transactions on Industry Applications, June 2020.
  • H. Chen, J. He, N. Demerdash, X. Guan, and C. Lee, "Diagnosis of Open-Phase Faults for a Five-Phase PMSM Fed by a Closed-Loop Vector-Controlled Drive Based on Magnetic Field Pendulous Oscillation Technique," IEEE Transactions on Industrial Electronics, May 2020.
  • L. Wang, J. He, T. Han and T. Zhao, "Finite Control Set Model Predictive Control with Secondary Problem Formulation for Power Loss and Thermal Stress Reductions," IEEE Transactions on Industry Applications, April 2020.
  • S. Huang, G. Cao, J. Xu, Y. Cui, C. Wu and J. He, "Predictive Position Control of Long-Stroke Planar Motors for High-Precision Positioning Applications," IEEE Transactions on Industrial Electronics, April 2020.
  • X. Wang, Z. Wang, M. Gu, D. Xiao, J. He and A. Emadi, "Diagnosis-Free Self-Healing Scheme for Open-Circuit Faults in Dual Three-Phase PMSM Drives," IEEE Transactions on Power Electronics, Mar 2020.
  • Y. Xu, Z. Wang, P. Liu and J. He, "A Soft-Switching Current-Source-Inverter Fed Motor Drive With Reduced Common-Mode Voltage," IEEE Transactions on Industrial Electronics, Mar 2020.
  • D. Pan, D. Zhang, J. He, C. Immer and M. Dame, "Control of MW-Scale High-Frequency “SiC+Si” Multilevel ANPC Inverter in Pump-Back Test for Aircraft Hybrid-Electric Propulsion Applications," IEEE Journal of Emerging and Selected Topics in Power Electronics, Jan 2020.
  • D. Zhang, J. He and D. Pan, "A Megawatt-Scale Medium-Voltage High Efficiency High Power Density “SiC+Si” Hybrid Three-Level ANPC Inverter for Aircraft Hybrid-Electric Propulsion Systems," IEEE Transactions on Industry Applications, vol. 55, no. 6, pp. 5971-5980, Nov.-Dec. 2019.
  • J. He et al., "Multi-Domain Design Optimization of dv/dt Filter for SiC-Based Three-Phase Inverters in High-Frequency Motor-Drive Applications," IEEE Transactions on Industry Applications, vol. 55, no. 5, pp. 5214-5222, Sept.-Oct. 2019.
  • R. Katebi, J. He and N. Weise, "Investigation of Fault Tolerant Capabilities in an Advanced Three-Level Active T-Type Converter," IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 7, no. 1, pp. 446-457, Mar. 2019.
  • D. Zhang, J. He and S. Madhusoodhanan, “Two-Stage Decoupled 3-Level Active Neutral Point Clamped Converter with SiC MOSFET and Si IGBT,” IEEE Transactions on Industry Applications, vol. 54, no. 6, Nov/Dec 2018.
  • J. He, R. Katebi, N. Weise, N. Demerdash, and L. Wei, “A Fault-Tolerant T-Type Multilevel Inverter Topology with Increased Overload Capability and Soft-Switching Characteristics,” IEEE Transactions on Industry Applications, vol. 53, no. 3, pp. 2826-2839, May 2017.
  • J. He, N. Demerdash, N. Weise, and R. Katebi, "A Fast On-Line Diagnostic Method for Open-Circuit Switch Faults in SiC-MOSFET Based T-Type Multilevel Inverters," IEEE Transactions on Industry Applications, vol. 53, no. 3, pp. 2948-2958, May-June 2017.
  • J. He, R. Katebi, and N. Weise, “A Current-Dependent Switching Strategy for Si/SiC Hybrid Switch Based Power Converters,” IEEE Transactions on Industrial Electronics, vol. 64, no. 10, Oct. 2017.
  • R. Katebi, J. He and N. Weise, “An Advanced Three-Level Active Neutral-Point Clamped Converter with Improved Fault-Tolerant Capabilities,” IEEE Transactions on Power Electronics, vol. 33, no. 8, pp. 6897-6909, Oct. 2017.
  • X. Wang, Z. Wang, Z. Xu, J. He and W. Zhao, "Diagnosis and Tolerance of Common Electrical Faults in T-type Three-level Inverters Fed Dual Three-phase PMSM Drives," IEEE Transactions on Power Electronics, vol. 35, no. 2, pp. 1753-1769, Feb. 2020.
  • J. Sun, G. Cao, S. Huang, Y. Peng, J. He and Q. Qian, "Sliding-Mode-Observer-Based Position Estimation for Sensorless Control of the Planar Switched Reluctance Motor," IEEE Access, vol. 7, pp. 61034-61045, 2019.
  • G. Cao, H. Hu, S. Huang, J. Sun and J. He, "An Assistant-Mover-Based Position Estimation Method for Planar Switched Reluctance Motors," IEEE Transactions on Industrial Electronics, vol. 67, no. 7, pp. 6066-6077, July 2020.
  • H. Chen, X. Liu, N. A. O. Demerdash, A. El-Refaie, Z. Chen and J. He, "Computationally Efficient Optimization of a Five-Phase Flux-Switching PM Machine Under Different Operating Conditions," IEEE Transactions on Vehicular Technology, May 2019.
  • S. Huang, G. Cao, Y. Peng, C. Wu, D. Liang and J. He, "Design and Analysis of a Long-Stroke Planar Switched Reluctance Motor for Positioning Applications," IEEE Access, vol. 7, pp. 22976-22987, 2019.
  • H. Chen, X. Liu, N. Demerdash, A. EL-Refaie, J. Zhao and J. He, "Comparison and Design Optimization of a Five-Phase Flux-Switching PM Machine for In-Wheel Traction Applications," IEEE Transactions on Energy Conversion, 2019.
  • G. Cao, N. Chen, S. Huang, S. Xiao, and J. He, “Nonlinear Modeling of the Flux Linkage in Two-Dimensional Plane for the Planar Switched Reluctance Motor,” IEEE Transactions on Magnetics, vol. 54, no. 11, June 2018.
  • H. Chen, X. Liu, A. EL-Refaie, J. Zhao, N. Demerdash and J. He, "Comparative Study of Winding Configurations of a Five-Phase Flux-Switching PM Machine," IEEE Transactions on Energy Conversion, 2019.
  • G. Cao, W. Li, S. Huang, and J. He, “Modeling, Analysis, and Implementation of a Novel Wireless-Moving-Levitating System with Multiple Magnetic Fields,” Electric Power Components and Systems, vol. 47, no. 6-7, 515-525, March 2019.
  • P. Zhang, G. Sizov, J. He, D. M. Ionel, and N. Demerdash, “Calculation of magnet losses in concentrated-winding permanent magnet synchronous machines using a Computationally Efficient - Finite Element method,” IEEE Transactions on Industry Applications, vol. 49, No. 5, pp. 3672-3678, Sep/Oct 2013. (Prize Paper recognized by IEEE IAS Electric Machine Committee)

Selected Conference Papers:

  • T. Arvin, J. He, N. Weise and T. Zhao, "Modeling and Simulation of a 20kV Ultra-Fast DC Circuit Breaker for Electric Shipboard Applications," 2020 IEEE Transportation Electrification Conference & Expo (ITEC), Chicago, IL, USA, 2020, pp. 795-801.
  • M. T. Fard, J. He and Z. Wang, "Fault Diagnosis and Fault-tolerant Operation of Current Source Inverter for Safety-Critical Applications," 2020 IEEE Transportation Electrification Conference & Expo (ITEC), Chicago, IL, USA, 2020, pp. 925-929.
  • Y. Zhang, O. Akeyo, J. He and D. M. Ionel, "On the Control of a Solid State Transformer for Multi-MW Utility-Scale PV-Battery Systems," 2019 IEEE Energy Conversion Congress and Exposition (ECCE), Baltimore, MD, USA, 2019, pp. 6481-6486.
  • Y. Zhang, J. He and D. M. Ionel, "Modeling and Control of a Multiport Converter based EV Charging Station with PV and Battery," 2019 IEEE Transportation Electrification Conference and Expo (ITEC), Detroit, MI, USA, 2019, pp. 1-5.
  • J. He, D. Zhang, and D. Pan, “A Novel PWM Strategy for SiC Three-Level Active Neutral Point Clamped Converter,” 2018 IEEE Energy Conversion Congress and Exposition (ECCE), Portland, Oregon, Sept. 2018.
  • D. Zhang, J. He, and D. Pan, “A Megawatt-Scale Medium-Voltage High Efficiency High Power Density "SiC+Si" Hybrid Three-Level ANPC Inverter for Aircraft Hybrid-Electric Propulsion Systems” 2018 IEEE Energy Conversion Congress and Exposition (ECCE), Portland, Oregon, Sept. 2018.
  • J. He, C. Li, A. Jassal, N. Thoagarajan, Y. Zhang, S. Prabhakaran, and X. Kang, “Multi-Domain Design Optimization of dv/dt Filter for SiC-based Three-Phase Inverter in High-Frequency Motor-Drive Applications,” 2018 IEEE Energy Conversion Congress and Exposition (ECCE), Portland, Oregon, Sept. 2018.
  • H. Chen, J. He, N. Demerdash, and H. Koti, “Diagnosis of Open-Phase Faults for a Five-Phase PMSM Fed by Closed-Loop Controlled Drives Using Pendulous Oscillation Phenomenon,” IEEE Industry Application Society (IAS) Annual Meeting, Portland, Oregon, Sept. 2018.
  • Y. Zhang, J. He, S. Padmanaban and D. M. Ionel, “Transistor-Clamped Multilevel H-Bridge Converter in Si and SiC Hybrid Configuration for High-Efficiency Low-Power Photovoltaic Applications”, 2018 IEEE Energy Conversion Congress and Exposition (ECCE), Portland, Oregon, Sept. 2018.
  • J. He, D. Zhang, D. Torrey, “Recent Advances of Power Electronics Applications in More Electric Aircrafts,” 2018 AIAA/IEEE Electric Aircraft Technologies Symposium (EATS), Cincinnati, Ohio, 2018.
  • D. Zhang, J. He, D. Pan, M. Dame, M. Schutten, “Development of Megawatt-Scale High-Efficiency High-Power-Density Power Converters for Aircraft Hybrid-Electric Propulsion Systems,” 2018 AIAA/IEEE Electric Aircraft Technologies Symposium (EATS), Cincinnati, Ohio, 2018.
  • G. Cao, N. Chen, S. Huang, S. Xiao, and J. He, “Nonlinear Modeling of the Flux Linkage in Two-Dimensional Plane for the Planar Switched Reluctance Motor,” 2018 IEEE International Magnetics Conference (INTERMAG), Singapore, 2018.
  • Y. Zou, S. Kuruppu, J. He, and B. Cao, “Reliability Improvement of Power Inverters for Low-Speed High-Power Motor Drives,” 2019 IEEE Applied Power Electronics Conference and Exposition (APEC 2019), Anaheim, CA, March 2019.
  • D. Pan, D. Zhang, J. He, C. Immer, and M. Dame, "Pump-Back Validation of a Medium-Voltage High-Frequency "SiC+Si" Hybrid Three-Level ANPC Inverter for Hybrid-Electric Propulsion Application," 2019 IEEE International Electric Machines and Drives Conference (IEMDC), San Diego, CA, May 2019. 
  • J. He, H. Chen, R. Katebi, N. Weise, and N. Demerdash, “Mitigation of Uneven Surge Voltage Stress on Stator Windings of Induction Motors Fed by SiC-MOSFET-based Adjustable Speed Drives,” International Electric Machines and Drives Conference (IEMDC), Miami, FL, May 2017.
  • V. Rallabandi, D. Lawhorn, J. He, and D. M. Ionel, “Current Weakening Control of Coreless AFPM Motor Drives for Solar Race Cars with a Three-port DC/DC Converter,” International Conference on Renewable Energy Research and Applications, San Diego, CA, Nov. 2017.
  • D. Zhang, J. He, and S. Madusoodhanan, “Two-Stage Decoupled 3-Level Active Neutral Point Clamped Converter with SiC MOSFET and Si IGBT,” 2017 IEEE Energy Conversion Congress and Exposition (ECCE), Cincinnati, OH, Oct. 2017.
  • Y. Zou and J. He, “Maximum Power Point Tracking (MPPT) of Sensorless Permanent Magnet Synchronous Generator Wind Power Systems,” 2016 IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, September 2016.
  • J. He and N. Demerdash, “An On-Line Diagnostic Method of Open-Circuit Switch Faults in Neutral-Point-Clamped Converters,” 2016 IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, 2016.
  • J. He, N. Weise, R. Katebi, L. Wei, and N. Demerdash, “A Fault-Tolerant T-Type Multilevel Converter Topology with Soft-Switching Capability based on Si and SiC Hybrid Phase Legs,” 2016 IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, 2016.
  • R. Katebi, N. Weise, A. Stark, and J. He, “Advanced Three Level Active Neutral Point Converter with Fault Tolerant Capabilities,” 2016 IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, 2016.
  • Y. Zou and J. He, “Comprehensive Modeling, Simulation and Experimental Validation of Permanent Magnet Synchronous Generator Wind Power System,” IEEE 52nd Industrial & Commercial Power Systems Conference (I&CPS), Detroit, MI, May 2016.
  • J. He, N. Weise, L. Wei, and N. Demerdash, “A Fault-Tolerant Topology of T-Type NPC Inverter with Improved Thermal Overload Capability,” 2016 IEEE Applied Power Electronics Conference and Exposition (APEC 2016), Long Beach, CA, March 2016. (Won Outstanding Presentation Award in APEC 2016)
  • J. He, L. Wei, and N. Demerdash, “Power Cycling Lifetime Improvement of Neutral-Point-Clamped Inverters Used in Adjustable Speed Drives,” 2016 IEEE Applied Power Electronics Conference and Exposition (APEC 2016), Long Beach, CA, March 2016.
  • J. He, Z. Vrankovic, P. Ozimek and C. Winterhalter, “DC-Bus Voltage Pump-Up Caused by Common-Mode EMI in Multi-Drive Systems,” 2016 IEEE Applied Power Electronics Conference and Exposition (APEC 2016), Long Beach, CA, March 2016.
  • T. Zhao and J. He, “An optimal switching pattern for “SiC+Si” Hybrid Device Based Voltage Source Converters,” IEEE Applied Power Electronics Conference and Expo (APEC), Charlotte, NC, March 2015.
  • J. He, A. Fatemi, N. Demerdash, and D. M. Ionel, “Diagnosis of Stator Short-Circuit Faults in Series and Parallel Winding Connections of Current-Controlled Permanent Magnet Synchronous Machines,” IEEE International Electric Machines and Drives Conference (IEMDC), Idaho, May 2015.
  • J. He, T. Zhao, X. Jing, and N. Demerdash, “Application of Wide Bandgap Devices in Renewable Energy Systems - Benefits and Challenges,” International Conference on Renewable Energy Research and Applications (ICRERA), Milwaukee, WI, Oct 2014.
  • J. He, C. Somogyi, A. Strandt, and N. Demerdash, “Diagnosis of Stator Winding Short-Circuit Faults in an Interior Permanent Magnet Synchronous Machine,” 2014 IEEE Energy Conversion Congress and Exposition (ECCE 2014), Pittsburg, PA, Sep. 2014.
  • J. He and N. Demerdash, “Diagnosis of Open-Circuit Switch Faults in Multilevel Active-NPC Inverters,” IEEE Transportation Electrification Conference and Expo (ITEC), Detroit, MI, 2014.
  • M. Li, J. He, and N. Demerdash, “A Flux-Weakening Control Approach for Interior Permanent Magnet Synchronous Motors based on Z-Source Inverters,” IEEE Transportation Electrification Conference and Expo (ITEC 2014), Dearborn, MI, June, 2014.
  • X. Jing, J. He, and N. Demerdash, “Loss Balancing SVPWM for Active Neutral-Point-Clamped Multilevel Converters,” 2014 IEEE Applied Power Electronics Conference and Exposition (APEC 2014), Fort Worth, TX, 2014.
  • J. He, A. Strandt, A. Manarik and N. Demerdash, “Diagnosis of Stator Short-Circuit Faults in an IPM Synchronous Machine Using a Space-Vector Pendulous Oscillation Method,” IEEE International Electric Machines and Drives Conference, Chicago, IL, May 2013.
  • X. Jing, J. He, and N. Demerdash, “Application and Losses Analysis of ANPC Converters in Doubly-Fed Induction Generator Wind Energy Conversion System,” IEEE International Electric Machines and Drives Conference (IEMDC 2013), Chicago, IL, May 2013.
  • N. Huang, J. He, and N. Demerdash, “Sliding Mode Observer Based Position Self-Sensing Control of a Direct-Drive PMSG Wind Turbine System Fed by NPC Converters,” IEEE International Electric Machines and Drives Conference (IEMDC 2013), Chicago, IL, May 2013.
  • P. Zhang, G. Sizov, J. He, D. Ionel, and N. Demerdash, “Calculation of magnet losses in concentrated-winding permanent magnet synchronous machines using a Computationally Efficient - Finite Element method,” IEEE Energy Conversion Congress and Exposition (ECCE), Raleigh, NC, Sept. 2012.
  • J. He, G. Sizov, P. Zhang, and N. Demerdash, “A Review of Mitigation Methods for Overvoltage in Long-Cable-Fed PWM AC Drives,” IEEE Energy Conversion Congress and Exposition (ECCE), Phoenix, AZ, Sep. 2011.