Research & Publications

General Directions: Energy storage and management, wireless power transfer (WPT), dynamics and motion control, and a wide range of applications in electronic devices, electric vehicles, microgrids and smart grids, etc. Current major interests include

1. Design, control and implementation of high-frequency power electronic devices, especially for WPT and energy routing;

2. Coordination and management of distributed energy networks from the perspective of new hardware architectures and algorithms;

Ongoing New Topics:

1. All-in-one multi-port multi-function energy routers (power routing, heating, EIS measurement, etc.);

2. Integrated battery electrical-thermal management system (power conversion architecture, modeling and control);

3. Three-dimensional magnetic field shaping by modular planar or quasi-planar transmitting coil arrays;

4. High-spatial-freedom wireless power transfer for medical implants, wearable devices, quadrotors, etc;

5. Cloud-local joint management of microgrids and smartgrids with dual redundancy;

6. Charging behavior-based EV fleet charging coordination and demand-side management.

Research Summary: [PPT]

Current Students:  4 PhD Students, 2 Master students (Oct. 2023)

Alumni: 13 PhD Students, 17 Master students (the first batch of graduate students enrolled in Sep. 2010)

Journals Publications: supervised students are delineated with an asterisk (*)

1. N. Kang*, H. Qin*, R. Ma*, C. H. T. Lee, M. Liu, C. Ma: "Magnetic Field Projection and Current Phase Control in a 2D Planar Transmitting Coil Array", IEEE Transactions on Power Electronics, accepted on May 3, 2024.

2. H. Qin*, C. Liu*, Y. Shi, M. Liu, C. Ma: "Prediction-based MIMO Control of A Multiport Magnetic-coupled Energy Router", IEEE Transactions on Power Electronics, vol. 39, no. 5, pp. 6409 - 6420, May 2024. [PDF]

3. Y. Shao*, N. Kang, H. Zhang, R. Ma, M. Liu, C. Ma: "A Lightweight and Robust Drone MHz WPT System via Novel Coil Design and Impedance Matching", IEEE Transactions on Industry Applications, vol. 59, no. 3, pp. 3851 - 3864, May-Jun. 2023. [PDF]

4. C. Ma, A. Alsabbagh*, A. Damiano: "Guest Editorial: Special Section on Advances in Coordination of Large-Scale EV Charging Networks”, IEEE Transactions on Industrial Informatics, vol. 19, no. 3, pp. 3251-3253, Mar. 2023.

5. H. Zhang*, Y. Shao*, N. Kang*, H. Qin*, C. Ma, M. Liu: "A Vertically Modularized Reconfigurable Wireless Power Transfer System: Architecture, Modeling, and Design", IEEE Transactions on Power Electronics, vol. 38, no. 2, pp. 2730-2742, Feb. 2023.

6. D. Yan*, C. Ma, Y. Chen: "Distributed Coordination of Charging Stations Considering Aggregate EV Power Flexibility ", IEEE Transactions on Sustainable Energy, vol. 14, no. 1, pp. 356 - 370, Oct. 2022.

7. Y. Shao*, H. Zhang*, M. Liu, C. Ma: "Explicit Design of Impedance Matching Networks for Robust MHz WPT Systems with Different Features", IEEE Transactions on Power Electronics, vol. 37, no. 9, pp. 11382 - 11393, Sep. 2022. [PDF]

8. Z. Li,*  C. Ma: "A Temporal-Spatial Charging Coordination Scheme Incorporating Probability of EV Charging Availability," Applied Energy, vol. 325. 119838, Aug. 2022. [PDF]

9. J. She,  H. Guzmán-Miranda, V. Huang, A. C. Chen, S. Karnouskos, L. Dunai, C. Ma, A. Tisan, S. Yokota: "A Cross-Disciplinary Outlook of Directions and Challenges in Industrial Electronics", in IEEE Open Journal of the Industrial Electronics Society, vol. 3, pp. 375-391, May 2022.

10. N. Kang*, Y. Shao*, M. Liu, C. Ma: "Analysis and Implementation of 3D Magnetic Field Shaping via A 2D Planar Transmitting Coil Array", IEEE Transactions on Power Electronics, vol. 37, no. 1, pp. 1172-1184, Jan. 2022. [PDF]

11. M. Liu, J. Song*, C. Ma: "Analysis and Design of a Self-Resonant Rectenna for Small-Size and Ultra-Loosely Coupling MHz Wireless Power", IEEE Journal of Emerging and Selected Topics in Industrial Electronics,  vol.  2, no. 4, pp. 535-544, Oct. 2021.

12. H. Zhang*, Y. Shao*, M.  Liu, C. Ma: "A Wide Load-Range and Compact MHz Wireless Power Transfer System based on Novel Reactance Compression Design and Edge Inductor", IEEE Transactions on Power Electronics, vol. 36, no. 10, pp. 11183-11195, Oct. 2021.[PDF]

13. D. Yan*, H. Yin*, T.  Li, C. Ma: "A Two-Stage Scheme for Both Power Allocation and EV Charging Coordination in A Grid Tied PV-Battery Charging Station", IEEE Transactions on Industrial Informatics, vol. 17, no. 10, pp. 6994-7004, Oct. 2021.[PDF]

14. J. Xu*, A. Alsabbagh*, C. Ma: "Prediction-based Game-theoretic Strategy for Energy Management of Hybrid Electric Vehicles", IEEE Journal of Emerging and Selected Topics in Industrial Electronics, vol. 3, no. 1, pp. 79-89, Jun. 2021.

15. J. Song*, N. Kang*, M. Liu*, C. Ma: “A Universal Optimal Drain-Source-Voltage Tracking Scheme for Synchronous Resonant Rectifiers in Megahertz Wireless Power Transfer Applications”, IEEE Transactions on Power Electronics, vol. 36, no. 5, pp. 5147-5156, May 2021. [PDF]

16. A. Alsabbagh*, B. Wu, C. Ma: "Distributed Electric Vehicles Charging Management Considering Time Anxiety and Customer Behaviors", IEEE Transactions on Industrial informatics, vol. 17, no. 4, pp. 2422-2431, Apr. 2021. [PDF]

17. C. Ma, I. R. Bojoi, A. Damiano, S. Bayhan, G. Buticchi, T. I. Strasser, R. K. Keshiri: "IES Technical Committee Cluster of Energy", IEEE Industrial Electronics Magazine, vol. 15, no. 1, pp. 89-103, Mar. 2021. [PDF]

18. M. Liu*, H. Zhang*, Y. Shao*, J. Song*, C. Ma: "High-Performance Megahertz Wireless Power Transfer: Topologies, Modeling, and Design", IEEE Industrial Electronics Magazine, vol. 15, no. 1, pp. 28-42, Mar. 2021. [PDF]

19. H. Yin*, C. Ma: "A Decentralized Power Dispatch Strategy in An Electric Vehicle Charging Station", IET Electrical Systems in Transportation, vol. 11, pp. 25-35, Mar. 2021.

20. J. Song*, M. Liu*, C. Ma: "Analysis and Design of A High-Efficiency 6.78-MHz Wireless Power Transfer System with Scalable Number of Receivers", IEEE Transactions on Industrial Electronics, vol. 67, no. 10, pp. 8281-8291, Oct. 2020.  [PDF]

21. D. Yan*, C. Ma: "Stochastic Planning of Electric Vehicle Charging Station Integrated with Photovoltaic and Battery Systems", IET Generation, Transmission & Distribution,  vol. 14, issue 19, pp. 4217–4224 Oct. 2020. [Link]

22. M. Liu*, J. Song*, C. Ma: "Active Class E Rectifier for DC Output Voltage Regulation in Megahertz Wireless Power Transfer Systems", IEEE Transactions on Industrial Electronics, vol. 67, no. 5, pp. 3618-3628, May 2020. [PDF]

23. A. Alsabbagh*, H. Yin*, C. Ma: "Distributed Electric Vehicles Charging Management with Social Contribution Concept", IEEE Transactions on Industrial Informatics,  vol. 16, no. 5, pp. 3483-3492, May 2020 . [PDF]

24. C. Zhao*, H. Yin*, C. Ma: "Equivalent Series Resistance-based Real-time Control of Battery-Ultracapacitor Hybrid Energy Storage Systems", IEEE Transactions on Industrial Electronics, vol. 67, no. 3, pp. 1999-2008, Mar. 2020. [PDF]

25. A. Alsabbagh*, C. Ma: "Distributed Charging Management of Electric Vehicles Considering Different Customer Behaviors", IEEE Transactions on Industrial Informatics, vol. 16, no. 8, pp. 5119-5127, Nov. 2019. [PDF]

26. A. Alsabbagh*, H. Yin*, C. Ma: "Distributed Charging Management of Multi-Class Electric Vehicles with Different Charging Priorities", IET Generation, Transmission & Distribution, vol. 13, issue 22, pp. 5257–5264, Nov. 2019. [Link]

27. M. Fu*, Z. Tang*, M. Liu*, C. Ma: "Analysis and Optimized Design of Compensation Capacitors for A Megahertz WPT System Using Full-Bridge Rectifier", IEEE Transactions on Industrial Informatics, vol. 15, no. 1, pp. 95-104, Jan. 2019.  [PDF]

28. H. Yin*, C. Zhao*, C. Ma: "Decentralized Real-Time Energy Management for A Reconfigurable Multiple-Source Energy System", IEEE Transactions on Industrial Informatics, vol. 14, no. 9, pp. 4128-4137, Sep. 2018 . [PDF]

29. X. Hu, F. Baronti, C. Ma, C. Lv: "Guest Editorial Special Section on Cyber-Physical Systems in Green Transportation", IEEE Transactions on Industrial Informatics, vol. 14, no. 9, pp. 4124-4127, Sep. 2018. [Link]

30. H. Yin*, M. Fu*, M. Liu*, J. Song*, C. Ma: "Autonomous Power Control in A Reconfigurable 6.78 Megahertz Multiple-receiver Wireless Charging System", IEEE Transactions on Industrial Electronics, vol. 65, no. 8, pp. 6177-6187, Aug. 2018. [PDF]

31. S. Liu*, M. Liu*, X. Zhu, C. Ma: "Tunable Class E^2 DC-DC Converter with High-Efficiency and Stable-Output-Power for 6.78 MHz Wireless Power Transfer", IEEE Transactions on Power Electronics, vol. 33, no. 8, pp. 6877-6886, Aug. 2018. [PDF]

32. M. Fu*, C. Zhao*, J. Song*, C. Ma: "A Low-Cost Voltage Equalizer Based on Wireless Power Transfer and Voltage Multiplier", IEEE Transactions on Industrial Electronics, vol. 65, no. 7, pp. 5487-5496, Jul. 2018. [PDF]

33. M. Fu*, H. Yin*, M. Liu*, C. Ma: A 6.78 MHz Multiple-Receiver Wireless Power Transfer System with Constant Output Voltage and Optimum Efficiency", IEEE Transactions on Power Electronics, vol. 33, no. 6, pp. 5330-5340, Jun. 2018. [PDF] 

34. M. Liu*, M. Fu*, C. Ma: "Battery Cell Equalization via Megahertz Multiple-Receiver Wireless Power Transfer", IEEE Transactions on Power Electronics, vol. 33, no. 5, pp. 4135-4144, May 2018. [PDF]

35. M. Liu*, S. Liu*, C. Ma: "A High Efficiency/Output Power and Low Noise Megahertz Wireless Power Transfer System over A Wide Range of Mutual Inductance", IEEE Transactions on Microwave Theory and Techniques, vol. 65, no. 11, pp. 4317-4325, Nov. 2017. [PDF]

36. M. Fu*, H. Yin*, C. Ma: "Megahertz Multiple-Receiver Wireless Power Transfer Systems with Power Flow Management and Maximum Efficiency Point Tracking", IEEE Transactions on Microwave Theory and Techniques, vol. 65, no. 11, pp. 4285-4293, Nov. 2017. [PDF]

37. M. Liu*, C. Zhao*, C. Ma: "Battery Charging Profile-Based Parameter Design of A 6.78-MHz Class E^2 Wireless Charging System”, IEEE Transactions on Industrial Electronics, vol. 64, no. 8, pp. 6169-6178, Aug. 2017. [PDF]

38. S. Liu*, M. Liu*, S. Yang, C. Ma, X. Zhu: "A Novel Design Methodology for High-Efficiency Current-Mode and Voltage-Mode Class-E Power Amplifiers in Wireless Power Transfer Systems", IEEE Transactions on Power Electronics, vol. 32, no. 6, pp. 4514-4523, Jun. 2017. [PDF]

39. M. Liu*, Y. Qiao*, S. Liu, C. Ma: "Analysis and Design of A Robust Class E^2 DC-DC Converter for Megahertz Wireless Power Transfer", IEEE Transactions on Power Electronics, vol. 32, no. 4, pp. 2835-2845, Apr. 2017. [PDF]

40. M. Liu*, M. Fu*, C. Ma: "Low-Harmonic-Contents and High-Efficiency Class E Full-Wave Current-Driven Rectifier for Megahertz Wireless Power Transfer Systems", IEEE Transactions on Power Electronics, vol. 32, no. 2, pp. 1198-1209, Feb. 2017. [PDF]

41. M. Fu*, H. Yin*, M. Liu*, C. Ma: "Loading and Power Control for A High-Efficiency Class E PA Driven Megahertz WPT System", IEEE Transactions on Industrial Electronics, vol. 63, no. 11, pp. 6867-6876, Nov. 2016. [PDF]

42. C. Zhao*, H. Yin*, C. Ma: "Quantitative Efficiency and Temperature Analysis of Battery-Ultracapacitor Hybrid Energy Storage Systems", IEEE Transactions on Sustainable Energy, vol. 7, no. 4, pp. 1791-1802, Oct. 2016. [PDF]

43. C. Ma, M.-Y. Chow, A. Khaligh, H. Razik: "Guest Editorial: Special Section on Networked Energy Systems: Architectures, Communication, and Management”, IEEE Transactions on Industrial Informatics, vol. 12, no. 5, pp. 1896-1899, Oct. 2016. [PDF]

44. H. Yin*, W. Zhou, C. Zhao*, M. Li, C. Ma, C. Zhao: "An Adaptive Fuzzy Logic Based Energy Management Strategy on Battery/Ultracapacitor Hybrid Electric Vehicles", IEEE Transactions on Transportation Electrification, vol. 2, no. 3, pp. 300-311, Sep. 2016. [PDF]

45. H. Yin*, C. Zhao*, M. Li, M.-Y. Chow, C. Ma: "A Game Theory Approach to Energy Management of An Engine-generator/Battery/Ultracapacitor Hybrid Energy System", IEEE Transactions on Industrial Electronics, vol. 63, no. 7, pp. 4266-4277,  Jul. 2016. [PDF]

46. F. Baronti, M.-Y. Chow, C. Ma, H. Rahimi-Eichi, R. Saletti: "The Role of Embedded Systems in Electric Energy Transfer from Grid to Vehicle", EURASIP Journal on Embedded Systems, no. 1, May 2016. [PDF]

47. M. Fu*, T. Zhang*, X. Zhu, P. Luk, C. Ma: "Compensation of Cross Coupling in Multiple-Receiver Wireless Power Transfer Systems", IEEE Transactions on Industrial Informatics, vol. 12, no. 2, pp. 474-482, Apr. 2016. [PDF]

48. C. Zhao*, H. Yin*, C. Ma: "Quantitative Evaluation of LiFePO4 Battery Cycle Life Improvement Using Ultracapacitors", IEEE Transactions on Power Electronics, vol. 31, no. 6, pp. 3989-3993,  Jun. 2016. [PDF]

49. M. Liu*, M. Fu*, C. Ma: "Parameter Design for A 6.78-MHz Wireless Power Transfer System Based on Analytical Derivation of Class E Current-Driven Rectifier", IEEE Transactions on Power Electronics, vol. 31, no. 6, pp. 4280-4291,  Jun. 2016. [PDF]

50. C. Zhao*, Y. He*, Y. Noguchi, Z. Yang, C. Ma: "Equivalent Series Resistance-Based Energy Efficiency Analysis of A Battery Semi-Active Hybrid System", IEEE Transactions on Energy Conversion, vol. 30, no. 7, pp. 3952-3963,  Jul. 2015. [PDF]

51. Y. Qiao*, C. Ma: "The Assignment of Generalized Time Constant for A Non-All-Pole System", IEEE Transactions on Industrial Electronics, vol. 62, no. 7, pp. 4276-4287,  Jul. 2015. [PDF]

52. M. Fu*, H. Yin*, X. Zhu, C. Ma: "Analysis and Tracking of Optimal Load in Wireless Power Transfer Systems", IEEE Transactions on Power Electronics, vol. 30, no. 7, pp. 3952-3963,  Jul. 2015. [PDF]

53. M. Fu*, T. Zhang*, C. Ma, X. Zhu: "Efficiency and Optimal Loads Analysis for Multiple-Receiver Wireless Power Transfer Systems", IEEE Transactions on Microwave Theory and Techniques, vol. 63, no. 3, pp. 801-812, Mar. 2015. [PDF]

54. H. Yin*, C, Zhao*, M. Li, C. Ma: "Utility Function-Based Real-Time Control of A Battery-Ultracapacitor Hybrid Energy System", IEEE Transactions on Industrial Informatics, vol. 11, no. 1, pp. 220-231, Feb. 2015. [PDF]

55. X. Wu, C. Ma: "Single-Parameter Skidding Detection and Control Specified for Electric Vehicles", Journal of the Franklin Institute, vol. 352, pp. 724-743, 2015. [PDF]

56. Y. Qiao*, J. Cao, C. Ma: "Transient Response Control of Two-Mass System via Polynomial Approach", ASME Journal of Dynamic Systems Measurement and Control, vol. 136, no. 6, 064503, Aug. 2014. [PDF]

57. M. Chow, F. Baronti, S. S. Williamson, C. Ma: "Guest Editorial: Special Section on Information and Control Technologies in the Electrification of Transportation", IEEE Transactions on Industrial Informatics, vol. 10, no. 3, pp. 1904-1906, Aug. 2014. [PDF]

58. M. Fu*, C. Ma, X. Zhu: "A Cascaded Boost-Buck Converter for High Efficiency Wireless Power Transfer Systems", IEEE Transactions on Industrial Informatics, vol. 10, no. 3, pp. 1972-1980, Aug. 2014. [PDF]

59. C. Ma, J. Cao, Y. Qiao*: "Polynomial Method Based Design of Low Order Controllers for Two-Mass System", IEEE Transactions on Industrial Electronics, vol. 60, no. 3, pp. 969-978, Mar. 2013. [PDF]

60. J. Cao, C. Ma, Z. Jiang, S. Liu: "Nonlinear Dynamic Analysis of Fractional Order Rub-impact Rotor System", Communications in Nonlinear Science and Numerical Simulation, vol. 16, no. 3,  pp. 1443-1463, Mar. 2011. [PDF]

61. C. Ma, M. Xu, H. Wang*: "Dynamic Emulation of Road/Tire Longitudinal Interaction for Developing Electric Vehicle Control Systems", Vehicle System Dynamics, vol. 49, no. 3, pp. 433-447,  Mar. 2011. [PDF]

62. J. Cao, C. Ma, H. Xie, Z. Jiang: "Nonlinear Dynamics of Duffing System with Fractional Order Damping", ASME Journal of Computational and Nonlinear Dynamics, 041012-1, vol. 5, Oct. 2010. [PDF]

63. C. Ma, Y. Hori: "Fractional-Order Control: Theory and Applications in Motion Control", IEEE Industrial Electronics Magazine, vol. 1, no. 4, pp. 6-16, 2007. [PDF]

64. C. Ma, Y. Hori: "The Time-Scaled Trapezoidal Rule for Discrete Fractional Order Controllers", Nonlinear Dynamics, Kluwer Academic Publishers, vol. 38, pp. 171-180, 2004. [PDF]

65. C. Ma, Y. Hori: "Time-domain Evaluation of Fractional Order Controllers' Direct Discretization Methods", IEEJ Transactions on Industry Applications, vol. 124, no. 8, pp. 837-842, 2004 (IEEJ: The Institute of Electrical Engineers of Japan). [PDF]

66. C. Ma, Y. Hori: "Backlash Vibration Suppression Control of Torsional System by Novel Fractional Order PID^k Controller", IEEJ Transactions on Industry Applications, vol. 124, no. 3, pp. 312-317, 2004. [PDF]

67. C. Ma, Y. Fujii and K. Yamaji: "China's electric power sector's options considering its environmental impacts'', Environmental Economics and Policy Studies, Springer-Verlag Publisher, vol. 5, no. 4, pp. 319-340, 2002. [PDF]