Faculty and Staff

M. R. Lak (劉莫翰) Assistant Professor

  • Education

    PhD., Electrical Power Engineering (Feb. 2019- Sep.2022)

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


     MSc., Electrical Power Engineering (Sept. 2016- Sept. 2018)

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


    BSc., Electrical Power Engineering ( Sept. 2011- Nov. 2015)

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

    Research Area

    Power System

    Microgrids

    Power Electronic Converters

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

  • Jurnal Papers

    Publications 

    B. -L. Zhang, M. -F. Guo, M. Lak, C. -M. Lin, S. Solemanifard and Q. Hong, "An Adaptive Total Sliding Mode Control for Cascaded H-bridge Multilevel Converters to Flexibly Suppress Ground Fault Arcs in Active Distribution Networks," in IEEE Transactions on Industry Applications, doi: 10.1109/TIA.2025.3604737.


    J. Gao, M. Lak, Z. Shao, and F. Chen, "Distributed robust optimal control strategy for integrated energy systems based on energy trading," International Journal of Electrical Power & Energy Systems, vol. 172, p. 111012,. doi: 10.1016/j.ijepes.2025.111012.


    B. -L. Zhang, M. -F. Guo, M. Lak, C. -M. Lin and Q. Hong, "Theory and Method of Distributed Virtual Zero-Sequence Synchronous Generators for Cooperative Fault Arc Suppression in Active Distribution Networks," in   IEEE Transactions on Industrial Electronics  , doi: 10.1109/TIE.2025.3591678. 


    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.

  • Conference Papers

    Conferences

    M. Lak and S. Solemanifard, "Comparative Analysis of Carrier-Based Modulation Methods for Dual-Parallel Three-Level T-Type Inverters,"  2025 International Future Energy Electronics Conference (IFEEC) , Bali, Indonesia, 2025, pp. 160-165, doi: 10.1109/IFEEC65025.2025.11301414. 


    S. Solemanifard and M. Lak, "A Comparative Study of Fixed-Slope Carrier Modulation Methods for Direct Matrix Converter,"  2025 International Future Energy Electronics Conference (IFEEC) , Bali, Indonesia, 2025, pp. 130-135, doi: 10.1109/IFEEC65025.2025.11301452.


    M. I. Islam, M. Lak, M. S. Jadin, A. A. Mansur and S. Solemanifard, "Spectroscopic and Morphological Characterization of Dust Deposition Effects on Bifacial PV String Performance After Two-Year Field Exposure in Tropical Climate," 2025 International Future Energy Electronics Conference (IFEEC), Bali, Indonesia, 2025, pp. 382-387, doi: 10.1109/IFEEC65025.2025.11301563.


    M. I. Bhuiyan, M. Lak, N. S. Kamarudin and S. Solemanifard, "Advanced Machine Learning and Neural Network Approaches for Battery State of Charge (SOC) Estimation," 2025 International Future Energy Electronics Conference (IFEEC), Bali, Indonesia, 2025, pp. 388-393, doi: 10.1109/IFEEC65025.2025.11301483.


    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.

  • Research Project

    NSTC Project 2023-2025:

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


    NSTC Project 2025-2026:

    Reducing Common Mode Voltage in Dual Parallel Three-Level T-Type Inverter Systems


    NSTC-Taipower project 2025-2026:

    Taipower Grid Resilience and Innovation Partnerships Project


  • Awards

    • Best paper award 33rd, International Power System Conference (PSC), 2018.

    Outstanding Master’s Student Award,  2019.

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

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

    Excellent Teaching Grade, EE, CECE, Yuan ze university, 2024.

    • Special Contribution in counseling & service Award, EE, CECE, Yuan ze university, 2025.


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