學系成員

劉莫翰 (Lak) 助理教授

  • 學歷

    PhD., Electrical Power Engineering

    ●Dissertation: A Common-Mode Voltage Elimination Method with Active Neutral Point Voltage Balancing Control for Three-Level T-type Inverter

    MSc., Electrical Power Engineering

    ●Thesis: Re-planning and scheduling of microgrids considering electrical vehicles as mobile energy storage.

    BSc., Electrical Power Engineering

    ●Thesis: Simultaneous control and online monitoring of DC Motor RPM by J-DAQ module

    研究專長

    Power System

    Microgrids

    Power Electronic Converters

    Artificial Intelligence (Optimization, Neural Network, and Fuzzy Logic)

  • 期刊論文

    Publications 

    B. -L. Zhang, M. -F. Guo, M. Lak, C. -M. Lin and Q. Hong, "Improved Fault Arc Suppression Capability and Minimized Required Power of Y-Type Cascaded H-bridge Converters without DC Sources in Active Distribution Networks," in IEEE Journal of Emerging and Selected Topics in Power Electronics, doi: 10.1109/JESTPE.2025.3572045. 


    J. Gao, Z. Shao, F. Chen, and M. Lak, "Energy Trading Strategies for Integrated Energy Systems Considering Uncertainty," Energies, vol. 18, no. 4, p. 935, 2025. doi: 10.3390/en18040935.


    B.-L. Zhang, M.-F. Guo, M. Lak, C.-M. Lin, Q. Hong, "Minimizing Required DC Sources of Cascaded H-bridge Multilevel Converter for Fault Suppression in Active Distribution Networks," IEEE Transactions on Industrial Electronics,  ISSN 0278-0046.


    J. Gao, Z. Shao, F. Chen, and M. Lak, "Multi-energy trading strategies for integrated energy systems based on low-carbon and green certificate," Electric Power Systems Research, vol. 238, no. 111120, Jan. 2025, doi: 10.1016/j.epsr.2024.111120.


     S. Solemanifard, C. -C. Hu, T. -L. Lee and M. Lak , "A Novel Discontinuous PWM Method With Hybrid Three-Step Commutation to Reduce Common-Mode Voltage for Direct Matrix Converter," in IEEE Open Journal of the Industrial Electronics Society , vol. 5, pp. 400-414, 2024 , doi: 10.1109/OJIES.2024.3397681.


    J. Gao, Z. Shao, F. Chen, and M. Lak , "Robust optimization for integrated energy systems based on multi-energy trading," Energy, vol. 308, p. 132302, 2024. doi: 10.1016 /j.energy.2024.132302.


    S. Solemanifard, Y. -X. Chen, M. Lak and T. -L. Lee, "A Novel Three-Step Commutation Method for Direct Matrix Converter Free From Inrush Current and Voltage Error," in IEEE Access , vol. 11, pp. 25020-25034, 2023 , doi: 10.1109/ACCESS.2023.3255989.


    M. Lak , B. -R. Chuang and T. -L. Lee, "A Common-mode Voltage Elimination Method with Active Neutral Point Voltage Balancing Control for Three-level T-type Inverter," in IEEE Transactions on Industry Applications, 2022 , doi:  10.1109/TIA.2022.3201175.


    M. Lak , Y. -T. Tsai, B. -R. Chuang, T. -L. Lee and MH Moradi, "A Hybrid Method to Eliminate Leakage Current and Balance Neutral Point Voltage for Photovoltaic Three-Level T -Type Inverter," in IEEE Transactions on Power Electronics , doi: 10.1109/TPEL. 2021 .3073471 .


    M. Lak , T. -L. Wu and T. -L. Lee, "A Hybrid Method for Three-Level T-type Inverters to Eliminate Neutral Point Voltage Ripple and Control DC-link Capacitors' Voltage for Separate MPPT ," in IEEE Access , doi: 10.1109/ACCESS. 2021 .3124295.






  • 會議論文

    Conferences

    B.-L. Zhang, M. Lak, M.-F. Guo, and S. Solemanifard, "An adaptive total sliding mode control for cascaded H-bridge multilevel converters to suppress ground fault in active distribution networks," 2024 IEEE Energy Conversion Congress and Exposition (ECCE), Phoenix, AZ, USA.


    B.-L. Zhang, M. Lak, M.-F. Guo, and S. Solemanifard, "An innovative multiport soft open point with ground fault suppression for future continuous power supply-oriented distribution networks," 2024 IEEE Energy Conversion Congress and Exposition (ECCE), Phoenix, AZ, USA.


    J. Gao, M. Lak, and Z. Shao, "A Multi-microgrid Energy Trading Strategy to Achieve Carbon Neutrality," 27th International Conference on Electrical Machines and Systems (ICEMS2024-Fukuoka), Fukuoka, Japan, Nov. 26-29, 2024.

    M. lak , B. -R. Chuang, T. -L. Wu and T. -L. Lee, "A Novel Hybrid Modulation For Photovoltaic Three-Level T-type Inverter To Simultaneously Eliminate Neutral-Point Voltage Ripple And Interact With Maximum Power Point Tracking Process," 2020 IEEE Energy Conversion Congress and Exposition ( ECCE ) , Detroit, MI, USA, 2020 , pp. 2224-2230, doi: 10.1109/ECCE44975.2020.9235974.


    M. Lak , B. -R. Chuang and T. -L. Lee, "An MVPWM based method for three-level T-type inverter with neutral point voltage balancing capability in the full range of power factor," 2021 IEEE 12th Energy Conversion Congress & Exposition - Asia ( ECCE-Asia ) , Singapore, Singapore, 2021 , pp. 920-925, doi: 10.1109/ECCE-Asia49820.2021.9479309.


    S. Solemanifard, Y. -X. Chen, M. Lak and T. -L. Lee, "A Commutation Method Free from Inrush Current for the Carrier-Based PWM Controlled Direct Matrix Converter," 2021 IEEE Energy Conversion Congress and Exposition ( ECCE ) , Vancouver, BC, Canada, 2021 , pp. 3253-3260, doi: 10.1109/ECCE47101.2021.9595330.


    M. Lak , Y. -H. Sie and T. -L. Lee, "A Discontinuous Modulation for Dual-parallel Three-level Inverters to Reduce Harmonic Distortion, Common-mode Voltage, and Circulating Current," 2023 IEEE Energy Conversion Congress and Exposition ( ECCE ) , Nashville, TN, USA, 2023 , pp. 3695-3700, doi: 10.1109/ECCE53617.2023.10362089.


    M. Lak and T. -L. Lee, "Improving the Economic and Technical Performance of Islanded Microgrids Using Nonlinear Droop Buses," 2021 IEEE International Future Energy Electronics Conference ( IFEEC ) , 2021 , pp. 1-5, doi : 10.1109/IFEEC53238.2021.9661748.


    M. Lak and T. -L. Lee, "Optimal Re-designing and Scheduling of Microgrids to Use Electric Vehicles as Mobile Energy Storages," 2021 IEEE International Future Energy Electronics Conference ( IFEEC ) , 2021 , pp. 1- 5, doi: 10.1109/IFEEC53238.2021.9661703.


    T. -S. Wu, P. -J. Huang, Y. -H. Sie, P. -W. Lee, M. Lak and T. -L. Lee, "An Efficiency Study of SiC-MOSFET Based Three-Level NPC Inverters," 2023 IEEE International Future Energy Electronics Conference ( IFEEC ) , Sydney, Australia, 2023 , pp. 465-468, doi: 10.1109/IFEEC58486.2023.10458608.


    T. -Y. Hsu, J. -T. Kuo, B. -Y. Li, M. Lak and T. -L. Lee, "A Modulation Method with Low Distortion for Isolated Three-phase AC-DC Matrix Converters," 2023 IEEE International Future Energy Electronics Conference ( IFEEC ) , Sydney, Australia, 2023, pp. 522-525, doi: 10.1109/IFEEC58486.2023.10458529.

  • 研究計畫

    NSTC Project 2023-2024

    A Study of Carrier-Based Modulation Methods for Dual-Parallel Three-Level T-Type Inverter

    並聯三電平 T 型逆變器基於載波的調變方法研究

  • 得獎事蹟

    Excellent Teaching Award, YZU, 2023

    Outstanding Doctoral Research Award (110學年度博士生研究績優獎勵金), 2022.

    Excellent Graduation Thesis Award (博士研究生優秀畢業論文獎), 2022.

    International Elite Doctoral Student Scholarship Award, 2019-2022.

    Outstanding Master's Student Award, 2019.

    Best paper award 33rd, International power system conference (PSC), 2018.

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