Professor Lie Xu

Electronic and Electrical Engineering

Personal statement

I joined the University in 2013 and is currently a Professor in the Department of Electronic and Electrical Engineering. I received my PHD in Electrical engineering from University of Sheffield in 2000 and started my career with ALSTOM, developing VSC based HVDC systems. My main research interests and experiences are in the areas of power electronics, converter control for grid connection of renewables, control and operation of HVDC systems and DC microgrid. I have published over 100 journal and conference papers and received the 2013 IET Renewable Power Generation Premium Award for my published paper “DC voltage control and power dispatch of a multi-terminal HVDC system for integrating large offshore wind farms”.


Has expertise in:

    • Power electronic system modelling and control design
    • HVDC system modelling and control
    • Renewable energy integration


PhD in Electrical Eneginnering from University of Sheffield, 2000


A hybrid modular multilevel converter with reduced full-bridge submodules
Li Rui, Xu Lie, YU Lujie, Yao Liangzhong
IEEE Transactions on Power Delivery (2019)
Leaky least logarithmic absolute difference based control algorithm and learning based InC MPPT technique for grid integrated PV system
Kumar Nishant, Singh Bhim, Panigrahi Bijaya Ketan, Xu L
IEEE Transactions on Industrial Electronics Vol 66, pp. 9003-9012 (2019)
Stability margin definition for a converter-grid system based on diagonal dominance property in the sequence-frame
Amico Gabriele, Egea Alvarez Agusti, Xu Lie, Brogan Paul
21st European Conference on Power Electronics and Applications (EPE2019) (2019)
Energy efficient three-phase utility interactive residential microgrid with mode transfer capabilities at weak grid conditions
Kumar Shailendra, Singh Bhim, Pal Bikash, Xu Lie, Al-Durra Ahmed
IEEE Transactions on Industry Applications (2019)
Coordinated control of parallel DR-HVDC and MMC-HVDC systems for offshore wind energy transmission
Li Rui, Yu Lujie, Xu Lie, Adam Grain Philip
IEEE Journal of Emerging and Selected Topics in Power Electronics, pp. 1-11 (2019)
Simulation-based optimisation of LCC-HVDC controller parameters using surrogate model solvers
Leavy Aaron S C, Xu Lie, Filizadeh Shaahin, Gole Aniruddha M
20th IEEE Workshop on Control and Modeling for Power Electronics (2019)

more publications


Power electronics, converter modelling, HVDC transmission

Research interests

  • Power electronics for renewable power generation and integration
  • HVDC system for renewable energy integration and network connection
  • DC Microgrid


Realising the value of offshore grid access for small pools
Ahmed, Khaled (Principal Investigator) Burt, Graeme (Co-investigator) Xu, Lie (Co-investigator)
03-Jan-2019 - 31-Jan-2020
UK HVDC Centre Phase II Converter Interaction
Xu, Lie (Principal Investigator) Ased, Grain Philip (Co-investigator) Egea Alvarez, Agusti (Co-investigator)
01-Jan-2019 - 31-Jan-2020
Bell, Keith (Principal Investigator) Anaya-Lara, Olimpo (Co-investigator) Burt, Graeme (Co-investigator) Stewart, Brian (Co-investigator) Xu, Lie (Co-investigator)
04-Jan-2018 - 03-Jan-2023
SmartNet H2020 SC3
Kockar, Ivana (Principal Investigator) McArthur, Stephen (Co-investigator) Xu, Lie (Co-investigator) Plecas, Milana (Researcher)
01-Jan-2016 - 30-Jan-2019
PROMOTioN - Progress on Meshed HVDC Offshore Transmission Networks H2020 SC3 Secure, Clean and Efficient Energy
Xu, Lie (Principal Investigator) Bell, Keith (Co-investigator) Finney, Stephen (Co-investigator) Holliday, Derrick (Co-investigator) MacIver, Callum (Researcher)
01-Jan-2016 - 31-Jan-2019
EPSRC Centre for Doctoral Training in Wind & Marine Energy Systems | Amico, Gabriele
Egea Alvarez, Agusti (Principal Investigator) Xu, Lie (Co-investigator) Amico, Gabriele (Research Co-investigator)
01-Jan-2015 - 20-Jan-2019

more projects


Electronic and Electrical Engineering
Royal College Building

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