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


Electrical interconnectors : market opportunities, regulatory issues, technology considerations and implications for the GB energy sector
MacIver Callum, Bell Keith RW, Adam Grain P, Xu Lie
Energy Strategy Reviews Vol 38 (2021)
DC fault study of a point-to-point HVDC system integrating offshore wind farm using high-temperature superconductor DC cables
Xiang Wang, Yuan Weijia, Xu Lie, Hodge Eoin, Fitzgerald John, McKeever Paul, Bell Keith
IEEE Transactions on Energy Conversion (2021)
A diode-MMC AC/DC hub for connecting offshore wind farm and offshore production platform
Huang Kai, Xu Lie, Liu Guangchen
Energies Vol 14 (2021)
Harmonic voltage control in distributed generation systems using optimal switching vector strategy
Srinivas Vedantham Lakshmi, Singh Bhim, Mishra Sukumar, Xu Lie
IEEE Systems Journal (2021)
Impedance modelling and stability analysis of diode-rectifier based HVDC connected offshore wind farms
Yu Lujie, Xu Lie, Zhu Jiebei, Li Rui
IEEE Transactions on Power Delivery (2021)
Microgrid design using folded P-f droop and new grid interface unit to minimize the need for communication
Huang Xiaozuo, Chen Dong, Xu Lie
International Journal of Electrical Power and Energy Systems (2021)

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


Potential solutions for AC protection in converter-dominated networks
Hong, Qiteng (Principal Investigator) Booth, Campbell (Co-investigator) Dysko, Adam (Co-investigator) Egea Alvarez, Agusti (Co-investigator) TZELEPIS, Dimitrios (Co-investigator) Xu, Lie (Co-investigator)
01-Jan-2021 - 31-Jan-2024
Electrical design of HTS cables for offshore wind farm connections
Yuan, Weijia (Principal Investigator) Xu, Lie (Co-investigator) Zhang, Min (Co-investigator)
30-Jan-2020 - 31-Jan-2024
Carbon Trust OWA MVDC
Xu, Lie (Principal Investigator) Egea Alvarez, Agusti (Co-investigator)
15-Jan-2019 - 31-Jan-2020
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) MacIver, Callum (Researcher)
04-Jan-2018 - 03-Jan-2023

More projects


Electronic and Electrical Engineering
Royal College Building

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