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Wei Liu - Selected Publications

To access my full publication list, please refer to here or Google Scholar.

Journal Publications

  1. S. Li, W. Liu, Y. Hou, and K. T. Chau, “Wireless energy conversion in wireless energy internet,” Nature Reviews Electrical Engineering, vol. 3, no. 5, pp. 274–287, May 2026. DOI: 10.1038/s44287-026-00279-6.
  2. W. Liu, J. Lu, C. C. Mi, and K. T. Chau, “Integrated sensorless wireless charging using symmetric high-order network for multistorey car parks,” IEEE Transactions on Power Electronics, vol. 39, no. 8, pp. 10568–10581, Aug. 2024. DOI: 10.1109/TPEL.2024.3395461.
  3. W. Liu, K. T. Chau, X. Tian, H. Wang, and Z. Hua, “Smart wireless power transfer — opportunities and challenges,” Renewable and Sustainable Energy Reviews, vol. 180, p. 113298, Jul. 2023. DOI: 10.1016/j.rser.2023.113298.
  4. S. Niu, W. Liu, C. Liu, C. Jia, M. Liserre, and K. T. Chau, “A non-intrusive integration of wireless chargers into electric vehicles: 95.60% dc-dc efficiency at 0.51 LD-to-CL ratio with on-vehicle demonstration,” eTransportation, vol. 27, p. 100547, Jan. 2026. DOI: 10.1016/j.etran.2026.100547. (Highly Cited Paper)
  5. W. Liu, K. T. Chau, C. H. T. Lee, W. Han, X. Tian, and W. H. Lam, “Full-range soft-switching pulse frequency modulated wireless power transfer,” IEEE Transactions on Power Electronics, vol. 35, no. 6, pp. 6533–6547, Jun. 2020. HKU Scholars Hub
  6. C. Jia, W. Liu, K. T. Chau, H. He, J. Zhou, and S. Niu, “Passenger-aware reinforcement learning for efficient and robust energy management of fuel cell buses,” eTransportation, vol. 27, p. 100537, Jan. 2026. DOI: 10.1016/j.etran.2025.100537. (Highly Cited Paper, Hot Paper)
  7. C. Jia, W. Liu, H. He, and K. T. Chau, “Health-conscious energy management for fuel cell vehicles: An integrated thermal management strategy for cabin and energy source systems,” Energy, vol. 333, p. 137330, Oct. 2025. DOI: 10.1016/j.energy.2025.137330. (Highly Cited Paper, Hot Paper)
  8. W. Liu, T. Placke, and K. T. Chau, “Overview of batteries and battery management for electric vehicles,” Energy Reports, vol. 8, pp. 4058–4084, Nov. 2022. DOI: 10.1016/j.egyr.2022.03.016. (Highly Cited Paper, Hot Paper, selected as Article Digests by Elsevier)
  9. C. Jia, W. Liu, H. He, and K. T. Chau, “Superior energy management for fuel cell vehicles guided by improved DDPG algorithm: Integrating driving intention speed prediction and health-aware control,” Applied Energy, vol. 394, p. 126195, Sept. 2025. DOI: 10.1016/j.apenergy.2025.126195. (Highly Cited Paper, Hot Paper)
  10. C. Jia, W. Liu, H. He, and K. T. Chau, “Deep reinforcement learning-based energy management strategy for fuel cell buses integrating future road information and cabin comfort control,” Energy Conversion and Management, vol. 321, p. 119032, Dec. 2024. DOI: 10.1016/j.enconman.2024.119032. (Highly Cited Paper, Hot Paper)
  11. S. Niu, R. Lyu, J. Lyu, K. T. Chau, W. Liu, and L. Jian, “Optimal resonant condition for maximum output power in tightly coupled WPT systems considering harmonics,” IEEE Transactions on Power Electronics, vol. 40, no. 1, pp. 152–156, Jan. 2025. DOI: 10.1109/TPEL.2024.3481247. (Highly Cited Paper, Hot Paper)
  12. X. Tian, W. Liu, K. T. Chau, and S. M. Goetz, “Omnidirectional magnetic resonant extender design for underwater wireless charging system,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 12, no. 4, pp. 3325–3333, Aug. 2024. DOI: 10.1109/JESTPE.2023.3318130. (Second Place Prize)
  13. Z. Li, W. Liu, Y. Wang, L. Wang, and K. T. Chau, “PCB-embedded SiC MOSFET packaging using shield to suppress near-field magnetic radiation,” IEEE Transactions on Magnetics, early access, 2026. DOI: 10.1109/TMAG.2026.3696692.
  14. C. Liu, W. Liu, T. Liu, Y. Wei, J. Guo, and K. T. Chau, “Reciprocal sinusoidal vector modulation in matrix converter-based WPT system,” IEEE Transactions on Transportation Electrification, early access, 2026. DOI: 10.1109/TTE.2026.3689942.
  15. Y. Wei, W. Liu, F. Wu, C. Liu, and K. T. Chau, “Admittance reconfiguration for cascaded-system stability enhancement in two-stage electrolytic-capacitor-less WPT system,” IEEE Transactions on Transportation Electrification, early access, 2026. DOI: 10.1109/TTE.2026.3689164.
  16. S. Niu, W. Liu, C. Y. V. Li, and K. T. Chau, “Impact of interlayer parasitic capacitance in dual-layer coils for wireless electric vehicle charging,” IEEE Transactions on Magnetics, early access, 2026. DOI: 10.1109/TMAG.2026.3690050.
  17. Y. Wei, W. Liu, C. Liu, and K. T. Chau, “Transient current protection for direct grid-connected wireless charging of electric vehicles,” World Electric Vehicle Journal, vol. 17, no. 6, pp. 319, Jun. 2026. DOI: 10.3390/wevj17060319.
  18. Z. Li, K. Zhao, M. Jiang, S. Niu, W. Liu, and K. T. Chau, “Design of a high-PM-utilization tubular transverse flux dual-PM linear motor with π-shaped core for long stroke application,” IEEE Transactions on Magnetics, early access, 2026. DOI: 10.1109/TMAG.2026.3690476.
  19. Z. Lyu, S. Niu, H. Zhan, L. Dai, H. Yin, W. Liu, and K. T. Chau, “Average torque improvement of open-end winding PMSM drive via third-order harmonic utilization,” IEEE Transactions on Magnetics, early access, 2026. DOI: 10.1109/TMAG.2026.3689200.
  20. M. Hu, W. Liu, X. Xie, H. Yin, S. Niu, W. Hua, and K. T. Chau, “Discrete-time ADRC for multifrequency disturbance mitigation in PMSM drives,” IEEE Transactions on Industrial Electronics, early access, 2026. DOI: 10.1109/TIE.2026.3684212.
  21. H. Zhan, W. Liu, Z. Lyu, J. Song, S. Niu, and K. T. Chau, “Investigation of post-demagnetization back-EMF in modular multi-three-phase permanent magnet synchronous machines,” IEEE Transactions on Magnetics, early access, 2026. DOI: 10.1109/TMAG.2026.3683558.
  22. Z. Lyu, S. Niu, L. Dai, H. Zhan, H. Wu, W. Liu, and K. T. Chau, “Demagnetization-induced harmonic currents in PMSM drives: Analysis and online neural network-based suppression,” IEEE Transactions on Power Electronics, vol. 41, no. 9, pp. 15041–15053, Sep. 2026. DOI: 10.1109/TPEL.2026.3683062.
  23. C. Jia, W. Liu, H. He, and K. T. Chau, “Decoupled safety supervision empowering efficient and safe energy management for fuel cell vehicles,” npj Sustainable Mobility and Transport, vol. 3, p. 16, Mar. 2026. DOI: 10.1038/s44333-026-00087-3.
  24. Y. Wei, W. Liu, F. Wu, C. Liu, and K. T. Chau, “V2G control strategy for single-phase matrix converter-based WPT system to suppress grid current harmonics,” IEEE Transactions on Industrial Electronics, vol. 73, no. 4, pp. 5455−5465, Apr. 2026. DOI: 10.1109/TIE.2025.3639741.
  25. M. Hu, W. Liu, Z. Lyu, Z. Li, S. Niu, and K. T. Chau, “Active thermal control for EV motor drives under stall and low-frequency conditions using additional current degrees of freedom,” IEEE Transactions on Transportation Electrification, vol. 12, no. 3, pp. 4289-4300, Jun. 2026. DOI: 10.1109/TTE.2026.3667037.
  26. H. Wu, S. Niu, Z. Lyu, M. Jiang, C. Liu, W. Liu, and K. T. Chau, “Virtual moment of inertia-based independent dual-speed regulation of brushless dual rotor machines,” IEEE Transactions on Power Electronics, vol. 41, no. 4, pp. 6616-6629, Apr. 2026. DOI: 10.1109/TPEL.2025.3628347.
  27. X. Cui, L. Liang, W. Yin, W. Liu, and Y. Hou, “EV semi-dynamic routing and bidirectional dynamic wireless power transfer for service restoration in coupled traffic-power networks,” Applied Energy, vol. 403, Part B, p. 127021, Jan. 2026. DOI: 10.1016/j.apenergy.2025.127021.
  28. Y. Tang, W. Liu, Y. Hou, and K. T. Chau, “Scalable and robust energy routing optimization in stochastic vehicular energy network,” IEEE Internet of Things Journal, vol. 13, no. 3, pp. 5163-5178, Feb. 2026. DOI: 10.1109/JIOT.2025.3641667.
  29. S. Niu, W. Liu, C. Liu, J. Lyu, C. Yang, and K. T. Chau, “Wireless power transfer for IoT bolts in railways: Overcoming coupling challenges due to conductive and ferromagnetic rails,” IEEE Transactions on Industrial Electronics, vol. 73, no. 4, pp. 5409-5419, Apr. 2026. DOI: 10.1109/TIE.2025.3629381.
  30. Y. Duan, K. T. Chau, W. Liu, and Y. Hou, “A hierarchical predictive control approach for wireless electric vehicle energy network with integrated microgrids incorporating degradation costs,” IEEE Transactions on Transportation Electrification, vol. 12, no. 1, pp. 699-714, Feb. 2026. DOI: 10.1109/TTE.2025.3620882.
  31. Z. Li, S. Niu, M. Jiang, Z. Lyu, W. Liu, and K. T. Chau, “An integrated toroidal winding design for open-winding magnetless Vernier reluctance linear machine in long-stroke module,” IEEE Transactions on Industrial Electronics, vol. 73, no. 2, pp. 2779-2790, Feb. 2026. DOI: 10.1109/TIE.2025.3595982.
  32. Z. Xue, K. T. Chau, W. Liu, J. Guo, W. H. Chung, and Y. Hou, “Analysis and suppression of current oscillations in wireless power transfer system using multilevel pulse magnitude modulation,” IEEE Transactions on Power Electronics, vol. 41, no. 2, pp. 3060-3077, Feb. 2026. DOI: 10.1109/TPEL.2025.3618272.
  33. M. Hu, W. Liu, S. Niu, X. Yuan, and K. T. Chau, “Digital current control for permanent magnet synchronous machine drives with fractional-step computation delay,” IEEE Transactions on Transportation Electrification, vol. 12, no. 1, pp. 641-651, Feb. 2026. DOI: 10.1109/TTE.2025.3619989.
  34. Y. Wei, W. Liu, F. Wu, J. Guo, M. Liserre, and K. T. Chau, “Grid current harmonic suppression strategy for electrolytic capacitorless WPT system under nonideal grid condition,” IEEE Transactions on Power Electronics, vol. 41, no. 2, pp. 3046-3059, Feb. 2026. DOI: 10.1109/TPEL.2025.3616346.
  35. C. Yang, W. Liu, B. Song, X. Xie, S. Niu, and K. T. Chau, “Signal-injection-based efficient direct-determination of controller gains and nonlinear friction compensation values in SPMSM drives,” IEEE Transactions on Power Electronics, vol. 41, no. 2, pp. 1627-1633, Feb. 2026. DOI: 10.1109/TPEL.2025.3618648.
  36. C. Si, K. T. Chau, W. Liu, and Y. Hou, “Optimal scheduling for electric vehicle charging: A review of methods, technologies, and uncertainty management,” Journal of Energy Storage, vol. 131, Part A, p. 117500, Sept. 2025. DOI: 10.1016/j.est.2025.117500.
  37. D. W. S. Suen, C. Y. V. Li, X. Sun, J. Chen, C. Yang, M. Qiu, X. Y. Lu, B. Wang, S. Niu, W. Liu, and C. W. Tsang, “Dual-active site engineering of Co/Cu single atoms and nanoclusters on M-Nx-CNTs (M = Co, Cu, CoCu): Synergistic catalysis for ultrafast hydrogen production from Ammonia borane,” Journal of Colloid and Interface Science, vol. 700, Part 3, p. 138560, Dec. 2025. DOI: 10.1016/j.jcis.2025.138560.
  38. H. Zhan, W. Liu, Z. Lyu, S. Niu, L. Wu, and K. T. Chau, “Eccentricity fault diagnosis in multimodule permanent magnet synchronous machines based on zero-sequence voltage component,” IEEE Transactions on Industrial Electronics, vol. 72, no. 12, pp. 12332-12342, Dec. 2025. DOI: 10.1109/TIE.2025.3574542.
  39. K. T. Chau, T. Liu, W. Liu, S. Niu, and C. C. Chan, “Translation of electric vehicle research into education,” World Electric Vehicle Journal, vol. 16, no. 6, pp. 327, Jun. 2025. DOI: 10.3390/wevj16060327.
  40. C. Si, Y. Hou, W. Liu, and K. T. Chau, “Mirror-symmetrical Dijkstra’s algorithm-based deep reinforcement learning for dynamic wireless charging navigation of electric vehicles,” IEEE Internet of Things Journal, vol. 12, no. 16, pp. 33561–33578, Aug. 2025. DOI: 10.1109/JIOT.2025.3577752.
  41. C. Yang, W. Liu, S. Niu, J. Lyu, and K. T. Chau, “Parameter-tuning-free two-step identification of mechanical parameters for PMSM drives,” IEEE Transactions on Industrial Electronics, vol. 72, no. 12, pp. 12378-12392, Dec. 2025. DOI: 10.1109/TIE.2025.3577312.
  42. J. Guo, K. T. Chau, W. Liu, Y. Hou, and H. Pang, “Bang-bang pulse magnitude modulation and binary search tree-based voltage balancing method of multilevel inverter for wireless power transfer,” IEEE Transactions on Power Electronics, vol. 40, no. 10, pp. 14868–14880, Oct. 2025. DOI: 10.1109/TPEL.2025.3576790.
  43. J. Guo, K. T. Chau, W. Liu, and Y. Hou, “Pulse increment modulation of three-level inverter-based wireless power transfer,” IEEE Transactions on Transportation Electrification, vol. 11, no. 4, pp. 10441–10452, Aug. 2025. DOI: 10.1109/TTE.2025.3561239.
  44. S. Li, K. T. Chau, W. Liu, J. Guo, C. Liu, and Y. Hou, “A wireless permanent-magnet brushless DC motor using contactless feedback and autonomous commutation,” IEEE Transactions on Power Electronics, vol. 40, no. 7, pp. 10140–10153, Jul. 2025. DOI: 10.1109/TPEL.2025.3543572.
  45. X. Tian, W. Liu, Y. Tang, and S. M. Goetz, “Linking electric vehicle traffic and the stationary power system: Technology needs and economical aspects,” IEEE Industrial Electronics Magazine, vol. 19, no. 2, pp. 25−38, Jun. 2025. DOI: 10.1109/MIE.2025.3542736.
  46. Y. Tang, W. Liu, K. T. Chau, Y. Hou, and J. Guo, “Stochastic behavior modeling and optimal bidirectional charging station deployment in EV energy network,” IEEE Transactions on Intelligent Transportation Systems, vol. 26, no. 5, pp. 6231–6247, May 2025. DOI: 10.1109/TITS.2025.3553513. 
  47. J. Lyu, W. Liu, S. Niu, T. Liu, S. Niu, and K. T. Chau, “Three-dimensional free-positioning wireless power transfer via multiple-current amplitude modulation,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 13, no. 4, pp. 4377−4387, Aug. 2025. DOI: 10.1109/JESTPE.2025.3544587.
  48. K. T. Chau, C. C. Chan, S. Niu, W. Liu, and T. Liu, “Graduate degree in electric vehicles—A timely programme for modern society,” World Electric Vehicle Journal, vol. 16, no. 1, pp. 31, Jan. 2025. DOI: 10.3390/wevj16010031. (Editor's Choice Article)
  49. Z. Xue, W. Liu, C. Liu, and K. T. Chau, “Critical review of wireless charging technologies for electric vehicles,” World Electric Vehicle Journal, vol. 16, no. 2, pp. 65, Jan. 2025. DOI: 10.3390/wevj16020065.
  50. J. Guo, K. T. Chau, W. Liu, Y. Hou, and W. L. Chan, “Pulse magnitude modulation and token rotation-based voltage balancing method of multilevel inverter for wireless power transfer,” IEEE Transactions on Power Electronics, vol. 40, no. 3, pp. 4652–4663, Mar. 2025. DOI: 10.1109/TPEL.2024.3506612.
  51. X. Cui, L. Liang, W. Liu, W. Yin, J. Liu, and Y. Hou, “Modelling EV dynamic wireless charging loads and constructing risk constrained operating strategy for associated distribution systems,” Applied Energy, vol. 378, Part A, p. 124735, Jan. 2025. DOI: 10.1016/j.apenergy.2024.124735.
  52. R. Lyu, W. Liu, Q. Li, and K. T. Chau, “Overview of superconducting wireless power transfer,” Energy Reports, vol. 12, pp. 4055–4075, Dec. 2024. DOI: 10.1016/j.egyr.2024.09.067.
  53. H. Zhang, W. Liu, Z. Li, and C. K. Lee, “Pulse frequency modulation of 3D wireless power transfer for capsule endoscopy,” IEEE Transactions on Industrial Electronics, vol. 72, no. 1, pp. 308–317, Jan. 2025. DOI: 10.1109/TIE.2024.3404150.
  54. Z. Xue, K. T. Chau, W. Liu, Y. Fan, and Y. Hou, “Wireless power, drive, and data transfer for ultrasonic motors,” IEEE Transactions on Industrial Electronics, vol. 72, no. 1, pp. 134–144, Jan. 2025. DOI: 10.1109/TIE.2024.3401207.
  55. S. Li, K. T. Chau, W. Liu, C. Liu, and C. K. Lee, “Design and control of wireless hybrid stepper motor system,” IEEE Transactions on Power Electronics, vol. 39, no. 8, pp. 10518–10531, Aug. 2024. DOI: 10.1109/TPEL.2024.3392376.
  56. J. Guo, K. T. Chau, W. Liu, Z. Hua, and S. Li, “Segmented-vector pulse frequency modulated three-level converter for wireless power transfer,” IEEE Transactions on Power Electronics, vol. 39, no. 7, pp. 8959–8972, Jul. 2024. DOI: 10.1109/TPEL.2024.3383723.
  57. H. Wang, N. Tashakor, W. Jiang, W. Liu, C. Q. Jiang, and S. M. Goetz, “Hacking encrypted frequency-varying wireless power: cyber-security of dynamic charging,” IEEE Transactions on Energy Conversion, vol. 39, no. 3, pp. 1947–1957, Sept. 2024. DOI: 10.1109/TEC.2024.3355743.
  58. Z. Xue, K. T. Chau, W. Liu, and T. W. Ching, “Design, analysis, and implementation of wireless traveling-wave ultrasonic motors,” IEEE Transactions on Power Electronics, vol. 39, no. 4, pp. 4601–4611, Apr. 2024. DOI: 10.1109/TPEL.2024.3351142.
  59. Z. Xue, K. T. Chau, W. Liu, and Z. Hua, “Magnetic-free wireless self-direct drive motor system for biomedical applications with high-robustness,” IEEE Transactions on Power Electronics, vol. 39, no. 2, pp. 2882–2891, Feb. 2024. DOI: 10.1109/TPEL.2023.3335373.
  60. W. Liu, K. T. Chau, C. C. T. Chow, and C. H. T. Lee, “Wireless energy trading in traffic internet,” IEEE Transactions on Power Electronics, vol. 37, no. 4, pp. 4831–4841, Apr. 2022. DOI: 10.1109/TPEL.2021.3118458.
  61. W. Liu, K. T. Chau, C. H. T. Lee, L. Cao, and W. Han, “Wireless power and drive transfer for piping network,” IEEE Transactions on Industrial Electronics, vol. 69, no. 3, pp. 2345–2356, Mar. 2022. DOI: 10.1109/TIE.2021.3068675.
  62. W. Liu, K. T. Chau, C. H. T. Lee, X. Tian, and C. Jiang, “Hybrid frequency pacing for high-order transformed wireless power transfer,” IEEE Transactions on Power Electronics, vol. 36, no. 1, pp. 1157–1170, Jan. 2021. HKU Scholars Hub
  63. W. Liu, K. T. Chau, C. H. T. Lee, C. Jiang, W. Han, and W. H. Lam, “A wireless dimmable lighting system using variable-power variable-frequency control,” IEEE Transactions on Industrial Electronics, vol. 67, no. 10, pp. 8392–8404, Oct. 2020. DOI: 10.1109/TIE.2019.2947814.
  64. W. Liu, K. T. Chau, C. H. T. Lee, C. Jiang, W. Han, and W. H. Lam, “Wireless energy-on-demand using magnetic quasi-resonant coupling,” IEEE Transactions on Power Electronics, vol. 35, no. 9, pp. 9057–9069, Sept. 2020. HKU Scholars Hub
  65. W. Liu, K. T. Chau, H. Wang, and T. Yang, “Long-range wireless power drive using magnetic extender,” IEEE Transactions on Transportation Electrification, vol. 9, no. 1, pp. 1897–1909, Mar. 2023. DOI: 10.1109/TTE.2022.3178688.
  66. W. Liu, K. T. Chau, C. H. T. Lee, C. Jiang, and W. Han, “A switched-capacitorless energy-encrypted transmitter for roadway-charging electric vehicles,” IEEE Transactions on Magnetics, vol. 54, no. 11, pp. 8401006: 1–6, Nov. 2018. HKU Scholars Hub
  67. W. Liu, K. T. Chau, C. H. T. Lee, C. Jiang, W. Han, and W. H. Lam, “Multi-frequency multi-power one-to-many wireless power transfer system,” IEEE Transactions on Magnetics, vol. 55, no. 7, pp. 8001609: 1–9, Jul. 2019. HKU Scholars Hub
  68. W. Liu, K. T. Chau, C. H. T. Lee, W. Han, and X. Tian, “Low-frequency-switching high-frequency-resonating wireless power transfer,” IEEE Transactions on Magnetics, vol. 57, no. 2, pp. 8000408: 1–8, Feb. 2021. DOI: 10.1109/TMAG.2020.3007156.
  69. W. Liu, K. T. Chau, C. H. T. Lee, L. Cao, and C. Jiang, “Frequency-modulated wireless direct-drive motor control,” IEEE Transactions on Magnetics, vol. 57, no. 2, pp. 8201907: 1–7, Feb. 2021. DOI: 10.1109/TMAG.2020.3021708.
  70. W. Liu, J. Zhang, and R. Chen, “Modelling and control of a novel zero-current-switching inverter with sinusoidal current output,” IET Power Electronics, vol. 9, no. 11, pp. 2205–2215, Sept. 2016. DOI: 10.1049/iet-pel.2015.0296.
  71. W. Liu, K. T. Chau, W. H. Lam, and Z. Zhang, “Continuously variable-frequency energy-encrypted wireless power transfer,” Energies, vol. 12, no. 7, pp. 1286, Apr. 2019. DOI: 10.3390/en12071286.
  72. H. Pang, F. Xu, W. Liu, C. K. Tse, and K. T. Chau, “Impedance buffer-based reactance cancellation method for CLC-S compensated wireless power transfer,” IEEE Transactions on Industrial Electronics, vol. 71, no. 7, pp. 6894–6906, Jul. 2024. DOI: 10.1109/TIE.2023.3314863.
  73. H. Wang, K. T. Chau, W. Liu, and S. M. Goetz, “Design and control of wireless permanent-magnet brushless DC motors,” IEEE Transactions on Energy Conversion, vol. 38, no. 4, pp. 2969–2979, Dec. 2023. DOI: 10.1109/TEC.2023.3292178.
  74. H. Wang, K. T. Chau, W. Liu, S. Li, and S. M. Goetz, “A novel speed-sensorless wireless universal motor with bidirectional movement,” IEEE Transactions on Magnetics, vol. 59, no. 11, pp. 8202105: 1–5, Nov. 2023. DOI: 10.1109/TMAG.2023.3277272.
  75. T. Yang, K. T. Chau, W. Liu, T. W. Ching, and L. Cao, “Comparative analysis and design of double-rotor stator-permanent-magnet motors with magnetic-differential application for electric vehicles,” World Electric Vehicle Journal, vol. 13, no. 11, pp. 199, Oct. 2022. DOI: 10.3390/wevj13110199.
  76. Z. Hua, K. T. Chau, W. Liu, X. Tian, and H. Pang, “Autonomous pulse frequency modulation for wireless battery charging with zero-voltage switching,” IEEE Transactions on Industrial Electronics, vol. 70, no. 9, pp. 8959–8969, Sept. 2023. DOI: 10.1109/TIE.2022.3215814.
  77. C. C. T. Chow, A. Y. S. Lam, W. Liu, and K. T. Chau, “Multisource-multidestination optimal energy routing in static and time-varying vehicular energy network,” IEEE Internet of Things Journal, vol. 9, no. 24, pp. 25487–25505, Dec. 2022. DOI: 10.1109/JIOT.2022.3197242.
  78. X. Tian, K. T. Chau, W. Liu, H. Pang, and C. H. T. Lee, “Maximum power tracking for magnetic field editing-based omnidirectional wireless power transfer,” IEEE Transactions on Power Electronics, vol. 37, no. 10, pp. 12901–12912, Oct. 2022. DOI: 10.1109/TPEL.2022.3178097.
  79. Z. Hua, K. T. Chau, W. Liu, and X. Tian, “Pulse frequency modulation for parity-time-symmetric wireless power transfer system,” IEEE Transactions on Magnetics, vol. 58, no. 8, pp. 8002005: 1–5, Aug. 2022. DOI: 10.1109/TMAG.2022.3153499.
  80. H. Pang, K. T. Chau, W. Liu, and X. Tian, “Multi-resonating-compensation for multi-channel multi-pickup wireless power transfer,” IEEE Transactions on Magnetics, vol. 58, no. 8, pp. 8600506: 1–6, Aug. 2022. DOI: 10.1109/TMAG.2022.3145878.
  81. X. Yuan, J. Chen, W. Liu, and C. H. T. Lee, “A linear control approach to design digital speed control system for PMSMs,” IEEE Transactions on Power Electronics, vol. 37, no. 7, pp. 8596–8610, Jul. 2022. DOI: 10.1109/TPEL.2022.3146174.
  82. X. Tian, K. T. Chau, H. Pang, and W. Liu, “Power adaption design for multifrequency wireless power transfer system,” IEEE Transactions on Magnetics, vol. 58, no. 8, pp. 8600605: 1–5, Aug. 2022. DOI: 10.1109/TMAG.2021.3132959.
  83. Z. Hua, K. T. Chau, W. Han, W. Liu, and T. W. Ching, “Output-controllable efficiency-optimized wireless power transfer using hybrid modulation,” IEEE Transactions on Industrial Electronics, vol. 69, no. 5, pp. 4627–4636, May 2022. DOI: 10.1109/TIE.2021.3086733.
  84. W. Han, K. T. Chau, W. Liu, H. Wang, and Z. Hua, “Wireless power and drive transfer using orthogonal bipolar couplers and separately excited modulation,” IEEE Transactions on Industrial Electronics, vol. 69, no. 4, pp. 3492–3502, Apr. 2022. DOI: 10.1109/TIE.2021.3073302.
  85. X. Tian, K. T. Chau, and W. Liu, “Design and analysis of optimal current vector for HTS-based multi-input wireless power transfer systems,” Energies, vol. 15, no. 12, pp. 4337, Jun. 2022. DOI: 10.3390/en15124337.
  86. K. T. Chau, C. Jiang, W. Han, W. Liu, and H. Wang, “Direct wireless power conversion systems and their applications,” Studies in Science and Technology, vol. 10, no. 1, pp. 5–12, Jul. 2021. DOI: 10.11425/sst.10.5.
  87. C. Jiang, K. T. Chau, W. Liu, C. Liu, W. Han, and W. H. Lam, “An LCC-compensated multiple-frequency wireless motor system,” IEEE Transactions on Industrial Informatics, vol. 15, no. 11, pp. 6023–6034, Nov. 2019. DOI: 10.1109/TII.2019.2904798.
  88. C. Jiang, K. T. Chau, C. H. T. Lee, W. Han, W. Liu, and W. H. Lam, “A wireless servo motor drive with bidirectional motion capability,” IEEE Transactions on Power Electronics, vol. 34, no. 12, pp. 12001–12010, Dec. 2019. DOI: 10.1109/TPEL.2019.2904757.
  89. W. Han, K. T. Chau, C. Jiang, W. Liu, and W. H. Lam, “High-order compensated wireless power transfer for dimmable metal halide lamps,” IEEE Transactions on Power Electronics, vol. 35, no. 6, pp. 6269–6279, Jun. 2020. DOI: 10.1109/TPEL.2019.2950206.
  90. W. Han, K. T. Chau, C. Jiang, W. Liu, and W. H. Lam, “Design and analysis of wireless direct-drive high-intensity discharge lamp,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 8, no. 4, pp. 3558–3568, Dec. 2020. DOI: 10.1109/JESTPE.2019.2948069.
  91. X. Tian, K. T. Chau, W. Liu, and C. H. T. Lee, “Selective wireless power transfer using magnetic field editing,” IEEE Transactions on Power Electronics, vol. 36, no. 3, pp. 2710–2719, Mar. 2021. DOI: 10.1109/TPEL.2020.3017000.
  92. L. Ming, Z. Xin, W. Liu, and P. C. Loh, “Structure and modelling of four-layer screen-returned PCB Rogowski coil with very few turns for high-bandwidth SiC current measurement,” IET Power Electronics, vol. 13, no. 4, pp. 765–775, Mar. 2020. DOI: 10.1049/iet-pel.2019.0694.
  93. H. Pang, K. T. Chau, W. Han, W. Liu, and Z. Zhang, “Decoupled-double D coils based dual-resonating-frequency compensation topology for wireless power transfer,” IEEE Transactions on Magnetics, vol. 58, no. 2, pp. 8000407: 1–7, Feb. 2022. DOI: 10.1109/TMAG.2021.3091456.
  94. L. Cao, K. T. Chau, C. H. T. Lee, W. Liu, and T. W. Ching, “Analysis of air-gap field modulation in parallel-hybrid-excited harmonic-shift machines,” IEEE Transactions on Magnetics, vol. 57, no. 2, pp. 8102606: 1–6, Feb. 2021. DOI: 10.1109/TMAG.2020.3020126.
  95. X. Tian, K. T. Chau, W. Liu, and C. H. T. Lee, “Analysis of multi-coil omnidirectional energy harvester,” IEEE Transactions on Magnetics, vol. 57, no. 2, pp. 8000806: 1–6, Feb. 2021. DOI: 10.1109/TMAG.2020.3015732.
  96. W. Han, K. T. Chau, W. Liu, X. Tian, and H. Wang, “A dual-resonant topology-reconfigurable inverter for all-metal induction heating,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 10, no. 4, pp. 3818–3829, Aug. 2022. DOI: 10.1109/JESTPE.2021.3071700.
  97. W. Han, K. T. Chau, C. Jiang, W. Liu, and W. H. Lam, “Design and analysis of quasi-omnidirectional dynamic wireless power transfer for fly-and-charge,” IEEE Transactions on Magnetics, vol. 55, no. 7, pp. 8001709: 1–9, Jul. 2019. DOI: 10.1109/TMAG.2019.2895716.
  98. W. Han, K. T. Chau, C. Jiang, and W. Liu, “All-metal domestic induction heating using single-frequency double-layer coils,” IEEE Transactions on Magnetics, vol. 54, no. 11, pp. 8400705: 1–5, Nov. 2018. DOI: 10.1109/TMAG.2018.2846548.
  99. W. Han, K. T. Chau, C. Jiang, and W. Liu, “Accurate position detection in wireless power transfer using magnetoresistive sensors for implant applications,” IEEE Transactions on Magnetics, vol. 54, no. 11, pp. 4001205: 1–5, Nov. 2018. DOI: 10.1109/TMAG.2018.2843796.
  100. C. Jiang, K. T. Chau, C. Liu, C. H. T. Lee, W. Han, and W. Liu, “Move-and-charge system for automatic guided vehicles,” IEEE Transactions on Magnetics, vol. 54, no. 11, pp. 8600105: 1–5, Nov. 2018. DOI: 10.1109/TMAG.2018.2829727.
  101. C. Jiang, K. T. Chau, W. Han, and W. Liu, “Development of multilayer rectangular coils for multiple-receiver multiple-frequency wireless power transfer,” Progress in Electromagnetics Research, vol. 163, pp. 15–24, Aug. 2018. DOI: 10.2528/PIER18060206.
  102. C. Jiang, K. T. Chau, C. Liu, C. H. T. Lee, W. Han, and W. Liu, “Development of multiple-frequency wireless coordinative motor drives,” Progress in Electromagnetics Research C, vol. 91, pp. 143–156, Mar. 2019. DOI: 10.2528/PIERC18122803.
  103. R. Chen, J. Zhang, and W. Liu, “Modified dual-buck inverter based on resonant link,” Journal of Power Electronics, vol. 15, no. 6, pp. 1421–1428, Nov. 2015. DOI: 10.6113/JPE.2015.15.6.1421.
  104. R. Chen, J. Zhang, W. Liu, and C. Zheng, “Half load-cycle worked dual SEPIC single-stage inverter,” Journal of Electrical Engineering and Technology, vol. 11, no. 1, pp. 143–149, Jan. 2016. DOI: 10.5370/JEET.2016.11.1.143.
  105. Z. Guo, J. Zhang, and W. Liu, “Study of speed control characteristic and simulation of induction motor driven by current-source,” Computer Simulation, vol. 33, no. 2, pp. 304–307, Feb. 2016. CNKI

Book Chapters

  • W. Liu and K. T. Chau, Battery Management Technologies in Hybrid and Electric Vehicles, Springer Nature, Jan. 2024. DOI: 10.1007/978-981-99-3060-9_8.

Patents

  1. W. Liu, C. Yang, K. T. Chau, and X. Xie, “Method and system for determining nonlinear friction compensation term using signal injection,” China National Intellectual Property Administration, Application No. 202610174487.8, filed, February 6, 2026. (Featuring the invention of using a signal-injection-based method for the efficient direct-determination of the nonlinear friction compensation term in permanent magnet synchronous motor (PMSM) servo systems)
  2. W. Liu, M. Hu, K. T. Chau, and S. Niu, “A thermal management method and motor drive system,” China National Intellectual Property Administration, Application No. 202512019362.6, filed, December 29, 2025. (Featuring the invention of an active thermal management method and system for a three-phase open-end winding motor drive system in electric vehicles, to address the critical issue of localized thermal stress in power semiconductor devices during low-speed, high-torque, and locked-rotor operations)
  3. W. Liu, M. Hu, K. T. Chau, and S. Niu, “Digital current control method and system for permanent magnet synchronous motor,” China National Intellectual Property Administration, Application No. 202511935774.8, filed, December 22, 2025. (Featuring the invention of a discrete-time motor model incorporating fractional-step computation delay and identifying the transmission zeros causing cross-axis coupling, while reducing computational load)
  4. W. Liu, S. Niu, K. T. Chau, and T. Liu, “Wireless charging system and method,” U.S. Patent and Trademark Office, Application No. 19/333,451, filed, September 19, 2025. (Featuring the invention of a universal wireless charger achieving very high system efficiency withstanding a high distance-to-radius ratio)
  5. W. Liu, J. Song, T. Liu, C. Liu, and K. T. Chau, “Gate driver circuit,” U.S. Patent and Trademark Office, Application No. 19/359,619, filed, October 15, 2025. (Featuring the invention of a novel drive circuit for gallium nitride power converters)
  6. Z. Xue, K. T. Chau, W. Liu, Y. Duan, and X. Xie, “Control of highly integrated wireless ultrasonic motor systems with autonomous frequency adaptive pulse step modulation,” U.S. Patent and Trademark Office, Application No. 19/348,766, filed, October 2, 2025. (Featuring the invention of a novel wireless motor system for enclosed environments)
  7. S. Niu, K. T. Chau, W. Liu, and Y. Wang, “Wireless charging apparatus and method,” China National Intellectual Property Administration, Application No. 202411598154.5, filed, November 11, 2024. (Featuring the invention of a sensorless wireless charging system without requiring external communication modules)
  8. W. Liu, J. Guo, K. T. Chau, Q. Zhu, Y. Wang, and Y. Yang, “Motor control circuit, control method, device, terminal equipment and storage medium,” China National Intellectual Property Administration, Application No. 202410354030.6, filed, March 27, 2024. (Featuring the invention of wireless unipolar induction motor system and its implementation)
  9. J. Guo, K. T. Chau, W. Liu, Y. Wang, Q. Zhu, and Z. Liu, “Control circuit, control method, device, equipment, storage medium and program product,” China National Intellectual Property Administration, Application No. 202410780751.3, filed, June 18, 2024. (Featuring the invention of three-level converter using new segmented-vector pulse frequency modulation for wireless power transfer)
  10. J. Guo, K. T. Chau, W. Liu, and Y. Hou, “PMM multilevel inverter-based wireless power transmission system and control method,” China National Intellectual Property Administration, Application No. 202411081448.0, filed, August 8, 2024. (Featuring the invention of new modulation strategy and voltage balancing method for multilevel inverter)
  11. Z. Xue, K. T. Chau, and W. Liu, “Dual-frequency reconfigurable topology-based single-wire electric field coupled wireless power transfer system,” China National Intellectual Property Administration, Application No. 202411392553.6, filed, October 8, 2024. (Featuring the invention of new single-wire wireless power transfer system for constant current and constant voltage charging independent of mutual capacitance and load variation)

Conference Proceedings

  1. Z. Li, W. Liu, Y. Wang, S. Niu, L. Wang, C. C. Chan, and K. T. Chau, “Challenges and opportunities of wide-bandgap power semiconductor packaging for electric vehicles,” Proceedings of 39th Electric Vehicle Symposium & Exhibition (EVS), Long Beach, CA, USA, pp. 1–12, Jun. 2026.
  2. W. H. Chung, W. Liu, T. Liu, S. Niu, and K. T. Chau, “Thermal-balancing delta-sigma pulse frequency modulation for wireless power transfer,” Proceedings of IEEE 27th Workshop on Control and Modeling for Power Electronics (COMPEL), Cambridge, UK, paper no. 67, Jul. 2026.
  3. C. Liu, W. Liu, T. Liu, Y. Wei, C. Y. V. Li, and K. T. Chau, “Secondary sinusoidal modulation for single-phase matrix converter-based WPT system using bidirectional GaN-FETs,” Proceedings of IEEE 27th Workshop on Control and Modeling for Power Electronics (COMPEL), Cambridge, UK, paper no. 80, Jul. 2026.
  4. Z. Sun, W. Liu, S. Niu, and K. T. Chau, “Model analysis and impedance trajectory optimization of high-frequency wireless power transfer using relay coils,” Proceedings of IEEE 27th Workshop on Control and Modeling for Power Electronics (COMPEL), Cambridge, UK, paper no. 35, Jul. 2026.
  5. Z. Li, W. Liu, Y. Wang, Z. Sun, T. Long, and K. T. Chau, “A crosstalk mitigation method for SiC MOSFET based on negative voltage and Miller clamping,” Proceedings of IEEE 27th Workshop on Control and Modeling for Power Electronics (COMPEL), Cambridge, UK, paper no. 50, Jul. 2026.
  6. Y. Tang, W. Liu, Y. Hou, S. Niu, C. C. Chan, K. T. Chau, et al., “Wireless electric vehicle energy network – From innovation to implementation,” Proceedings of 39th Electric Vehicle Symposium & Exhibition (EVS), Long Beach, CA, USA, pp. 1–12, Jun. 2026.
  7. Y. Duan, W. Liu, Y. Hou, C. C. Chan, and K. T. Chau, “Challenges and opportunities of vehicle-to-grid,” Proceedings of 32nd International Council on Electrical Engineering Conference (ICEE), Seoul, Korea, pp. 1–12, Jul. 2026.
  8. R. Lyu, C. T. Chow, W. Liu, Y. Hou, C. C. Chan, and K. T. Chau, “Overview of superconductors and their diversified applications,” Proceedings of 32nd International Council on Electrical Engineering Conference (ICEE), Seoul, Korea, pp. 1–12, Jul. 2026.
  9. J. Song, W. Liu, Z. Xue, T. Liu, and K. T. Chau, “Voltage oscillation and crosstalk suppression of gate driver for GaN HEMT half-bridge converters,” Proceedings of 2025 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), Singapore, pp. 1–6, Jan. 2026.
  10. X. Xie, W. Liu, H. Wang, H. Zhan, J. Song, and K. T. Chau, “Half-cycle sinusoidal wireless power and drive transfer for single-phase induction motor,” Proceedings of 2025 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), Singapore, pp. 1–6, Jan. 2026.
  11. X. She, L. Wang, F. Yang, C. Shi, Y. Wang, W. Liu, K. T. Chau, and C. C. Chan, “Investigation on the effect of packaging on SiC MOSFETs under short-circuit conditions,” Proceedings of 2025 IEEE 3rd International Power Electronics and Application Symposium (PEAS), Shenzhen, China, pp. 1888–1893, Feb. 2026.
  12. Y. Wang, L. Wang, T. Hou, C. C. Chan, K. T. Chau, and W. Liu, “A common source impedance compensation method to achieve balanced dynamic current sharing of paralleled SiC MOSFETs,” Proceedings of 2025 IEEE 3rd International Power Electronics and Application Symposium (PEAS), Shenzhen, China, pp. 1877–1882, Feb. 2026.
  13. C. Liu, W. Liu, Y. Wei, J. Guo, Q. Zhu, and K. T. Chau, “Single-phase matrix converter-based wireless power transfer using bidirectional GaN-FETs,” Proceedings of 2025 IEEE Energy Conversion Conference Congress and Exposition (ECCE), Philadelphia, PA, USA, pp. 1–5, Dec. 2025.
  14. H. Zhan, W. Liu, X. Xie, Z. Lyu, and K. T. Chau, “Detection and discernment of asymmetric fault based on zero-sequence voltage component in PMSM under flux-weakening control,” Proceedings of 2025 IEEE Energy Conversion Conference Congress and Exposition (ECCE), Philadelphia, PA, USA, pp. 1–5, Dec. 2025. 
  15. H. Pang, W. Liu, X. Xie, C. Liu, T. Liu, and K. T. Chau, “Improved LCC topology for multi-frequency wireless power transfer system with constant-voltage under coupling and load variations,” Proceedings of 51st Annual Conference of the IEEE Industrial Electronics Society (IECON), Madrid, Spain, pp. 1–6, Nov. 2025.
  16. M. Hu, W. Liu, Z. Lyu, S. Niu, and K. T. Chau, “Multi-frequency cascade disturbance observer for harmonic mitigation in PMSM drives,” Proceedings of the 51st Annual Conference of the IEEE Industrial Electronics Society (IECON), Madrid, Spain, pp. 1–6, Nov. 2025.
  17. H. Wu, S. Niu, M. Jiang, W. Liu, and K. T. Chau, “Model compensation-based active disturbance rejection control of brushless dual-electrical-port dual-mechanical-port machine,” Proceedings of 2025 IEEE International Electric Machines and Drives Conference (IEMDC), Houston, TX, USA, pp. 234–239, Jul. 2025.
  18. C. Si, K. T. Chau, Y. Hou, and W. Liu, “EV dynamic wireless charging navigation in electrified transportation network: A shortest-path-based deep reinforcement learning method,” Proceedings of 38th Electric Vehicle Symposium & Exhibition (EVS), Gothenburg, Sweden, paper no. EVS3800096, Jun. 2025.
  19. Y. Duan, K. T. Chau, J. Guo, W. Liu, and Y. Hou, “Hardware-in-the-loop simulation of multistorey charging carpark for wireless (dis)charging electric vehicles,” Proceedings of 38th Electric Vehicle Symposium & Exhibition (EVS), Gothenburg, Sweden, paper no. EVS3800063, Jun. 2025.
  20. S. Li, K. T. Chau, W. Liu, C. Liu, and Y. Hou, “A frequency-modulated wireless power drive for electric vehicles,” Proceedings of 38th Electric Vehicle Symposium & Exhibition (EVS), Gothenburg, Sweden, paper no. EVS3800095, Jun. 2025.
  21. Y. Wang, W. Liu, S. Niu, Z. Xue, and K. T. Chau, “A multistage constant-current wireless charging method using pulse frequency modulation for multistorey EV carparks,” Proceedings of 20th IEEE Asia Pacific Wireless Communications Symposium, Singapore, paper no. 2024202914, Aug. 2024.
  22. Z. Xue, K. T. Chau, W. Liu, H. Pang, and Y. Hou, “Wireless smart charging station for multi-unmanned aerial vehicles,” Proceedings of 2024 IEEE Wireless Power Technology Conference and Expo (WPTCE), Kyoto, Japan, pp. 850–855, May 2024.
  23. Y. Tang, W. Liu, Y. Hou, and K. T. Chau, “Intelligent charging and discharging scheduling in multistorey car parks with wireless electric vehicle network,” Proceedings of International Council on Electrical Engineering Conference (ICEE) 2024, Kitakyushu, Japan, paper no. 5752768, Jun. 2024.
  24. X. Cui, J. Deng, Y. Hou, and W. Liu, “Coordinating wireless charging-enabled EVs in multistorey car parks and on traffic roads for optimal operation of urban electrified transportation networks,” Proceedings of International Council on Electrical Engineering Conference (ICEE) 2024, Kitakyushu, Japan, paper no. 5706373, Jun. 2024.
  25. S. Li, K. T. Chau, W. Liu, C. Liu, C. K. Lee, and C. C. Chan, “A multi-frequency wireless power and drive transfer system for electric vehicles,” Proceedings of 37th Electric Vehicle Symposium & Exhibition (EVS), Seoul, Korea, Apr. 2024.
  26. H. Pang, W. Liu, Z. Xue, Y. Hou, and C. C. Chan, “Load-independent dual-frequency constant-current and constant-voltage wireless power transfer system for multiple pickups,” Proceedings of 2024 IEEE Wireless Power Technology Conference and Expo (WPTCE), Kyoto, Japan, pp. 641–645, May 2024.
  27. J. Guo, K. T. Chau, W. Liu, Y. Tang, and S. C. Tan, “Commutative voltage-balancing PWM for three-level flying-capacitor inverter-based wireless power transfer,” Proceedings of 37th Electric Vehicle Symposium & Exhibition (EVS), Seoul, Korea, Apr. 2024.
  28. S. Li, K. T. Chau, W. Liu, and C. Liu, “Design and analysis of wireless stepper motors using selective wireless power transfer,” Proceedings of IEEE International Magnetic Conference (Intermag), Sendai, Japan, paper no. IPB-03, May 2023.
  29. H. Wang, K. T. Chau, W. Liu, and C. Jiang, “Wireless power transfer for shaded-pole induction motor with secondary self-drive half-bridge inverter,” Proceedings of IEEE Wireless Power Technology Conference and Expo (WPTCE), San Diego, CA, US, paper no. 134, Jun. 2023.
  30. Z. Xue, K. T. Chau, W. Liu, T. Yang, and T. W. Ching, “Pulse frequency modulation control for capacitive power transfer system with flexible output voltage,” Proceedings of IEEE Wireless Power Technology Conference and Expo (WPTCE), San Diego, CA, US, paper no. 12, Jun. 2023.
  31. Y. Tang, K. T. Chau, and W. Liu, “Charging station placement optimization using probability distribution and queueing model with time-varying arrival rate,” Proceedings of 36th Electric Vehicle Symposium & Exhibition (EVS), Sacramento, CA, US, paper no. 174, Jun. 2023.
  32. Z. Xue, K. T. Chau, W. Liu, and T. W. Ching, “Bidirectional wireless charging for electric vehicle network,” Proceedings of 36th Electric Vehicle Symposium & Exhibition (EVS), Sacramento, CA, US, paper no. 27, Jun. 2023.
  33. S. Li, K. T. Chau, W. Liu, C. Liu, and Y. He, “Multi-channel multi-frequency wireless power transfer system for automated guided vehicles,” Proceedings of 36th Electric Vehicle Symposium & Exhibition (EVS), Sacramento, CA, US, paper no. 28, Jun. 2023.
  34. S. Li, K. T. Chau, W. Liu, and C. Jiang, “A wireless separately excited DC motor system using pulse frequency modulation,” Proceedings of International Council on Electrical Engineering (ICEE), Hong Kong, China, paper no. ICEE23JY-133, Jul. 2023.
  35. J. Guo, W. Liu, Q. Li, K. T. Chau, and Y. Tang, “Finite-time speed control of three-level inverter for superconducting machines in electric aircraft,” Proceedings of 49th Annual Conference of the IEEE Industrial Electronics Society (IECON), Singapore, paper no. 000590, Oct. 2023.
  36. H. Wang, K. T. Chau, W. Liu, Y. Tang, C. Jiang, and S. M. Goetz, “Stepless frequency regulation for load-independent wireless power transfer with time-division switched capacitors,” Proceedings of 49th Annual Conference of the IEEE Industrial Electronics Society (IECON), Singapore, paper no. 001523, Oct. 2023.
  37. Y. Tang, K. T. Chau, W. Liu, and J. Guo, “Optimal deployment of traffic energy router for wireless energy trading,” Proceedings of 49th Annual Conference of the IEEE Industrial Electronics Society (IECON), Singapore, paper no. 001085, Oct. 2023.
  38. W. Liu and K. T. Chau, “Design and control of wireless electric vehicle direct charging for multistorey car parks,” Proceedings of International Council on Electrical Engineering Conference (ICEE) 2024, Kitakyushu, Japan, paper no. 5751809, Jun. 2024.
  39. W. Liu, K. T. Chau, C. C. T. Chow, and C. Jiang, “Design and analysis of wireless electric vehicle energy network,” Proceedings of IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific 2022), paper no. F0335, Haining, China, Oct. 2022. (Best Presentation Award)
  40. W. Liu, K. T. Chau, and Z. Hua, “Overview of batteries for electric vehicle propulsion,” Proceedings of 34th International Electric Vehicle Symposium & Exhibition (EVS), Nanjing, China, Jun. 2021. (Excellent Paper Award)
  41. W. Liu, K. T. Chau, and X. Tian, “Overview of battery chargers and charging technologies for electric vehicles,” Proceedings of 34th International Electric Vehicle Symposium & Exhibition (EVS), Nanjing, China, Jun. 2021. (Excellent Paper Award)
  42. W. Liu, K. T. Chau, C. H. T. Lee, L. Cao, and C. Jiang, “Frequency-modulated wireless direct-drive motor control,” Proceedings of IEEE International Magnetics Conference (INTERMAG), Montreal, Canada, May 2020.
  43. W. Liu, K. T. Chau, C. H. T. Lee, W. Han, and X. Tian, “Low-frequency-switching high-frequency-resonating wireless power transfer,” Proceedings of IEEE International Magnetics Conference (INTERMAG), Montreal, Canada, May 2020.
  44. W. Liu, K. T. Chau, C. H. T. Lee, T. W. Ching, and C. C. Chan, “Energy-encrypted wireless power transfer for electric vehicle dynamic charging,” Proceedings of 32nd International Electric Vehicle Symposium (EVS), Lyon, France, May 2019.
  45. W. Liu, K. T. Chau, C. H. T. Lee, C. Jiang, and W. Han, “A switched-capacitorless energy-encrypted transmitter for roadway-charging electric vehicles,” Proceedings of 2018 IEEE International Magnetics Conference (INTERMAG), Singapore, Apr. 2018.
  46. W. Liu, K. T. Chau, C. H. T. Lee, C. Jiang, W. Han, and W. H. Lam, “Multi-frequency multi-power one-to-many wireless power transfer system,” Proceedings of 2019 Joint MMM-Intermag Conference (2019 Joint), Washington DC, US, Jan. 2019.
  47. H. Wang, W. Liu, and K. T. Chau, “Wireless motors – A new breed of power electronics drives,” Proceedings of 9th International Conference on Power Electronics Systems and Applications (PESA), paper no. 5803, Hong Kong SAR, Sept. 2022.
  48. C. Si, W. Liu, K. T. Chau, and C. Jiang, “Perspectives on lithium-based batteries and post-lithium batteries for electric vehicles,” Proceedings of IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), Kiel, Germany, Jun. 2022.
  49. C. Zheng, J. Zhang, W. Liu, Z. Guo, and L. Zhang, “Equivalent disturbance observer based discrete-time integral sliding mode control for PMSM speed regulation system,” Proceedings of IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), Harbin, China, pp. 1–6, Aug. 2017.
  50. C. Zheng, J. Zhang, W. Liu, N. Zhang, and W. Hua, “A novel reduced-order load torque observer based discrete-time sliding mode control for PMSM speed servo system,” Proceedings of 20th International Conference on Electrical Machines and Systems (ICEMS), Sydney, NSW, pp. 1–6, Aug. 2017.
  51. R. Chen, J. Zhang, Z. Shao, and W. Liu, “Simulation study on a novel vector control strategy for asynchronous motor,” Proceedings of IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), Busan, South Korea, pp. 072–076, Jun. 2016.