Wei Liu

Project: Development of fast and discriminative HVDC grid protection at Cardiff University (4 April 2018 – 14 July 2020 and 16 September 2020 – 3 June 2021).

Watch his work package 3 short video and read the work package reports.

Journal publications:
Analysis and Protection of Converter-Side AC Faults in a Cascaded Converter-Based MVDC Link: ANGLE-DC Project, IEEE Transactions on Smart Grid, 2021.
Operation and Control of an HVDC Circuit Breaker with Current Flow Control Capability, IEEE Journal of Emerging and Selected Topics in Power Electronics 2020.
Protection of Single-Phase Fault at the Transformer Valve-Side of FB-MMC Based Bipolar HVDC Systems, IEEE Transactions on Industrial Electronics 2020.
Double-Thyristor based Protection for Valve-Side Single-Phase-to-Ground Faults in HB-MMC based Bipolar HVDC Systems, IEEE Transactions on Industrial Electronics 2019.

Conference presentations and posters:
CIGRE UK, Manchester, Feb 2020.
EV Workshop, Hangzhou, Nov 2019.
Renewable Power Generation, Shanghai, Oct 2019.
Energy Conversion Congress & Exposition, Baltimore, Oct 2019.
EPE’19 ECCE Europe, Genova, Sept 2019.
HVDC Colloquium, KU Leuven, Aug 2019.
Postgraduate conference, Gregynog, June 2019.
HVDC Colloquium, UPC, Barcelona, Sept 2018.

PowerPoint video presentations:
Operation and Control of an HVDC Circuit Breaker with Current Flow Control (10 mins) Oct 2020.
Protection of Single-Phase Fault at the Transformer Valve-Side of FB-MMC Based Bipolar HVDC systems (20 mins) Feb 2020.

Policy related work:
European Energy Innovation InnoDC feature contributor, winter 2020.
International Electrotechnical Commission, Oct 2020.
Senedd Cymru / Welsh Parliament, June 2019.

Public work:
Virtual lecture to MSc students, Oct 2020.
Science Magic Show, Cardiff, Dec 2019.
European Researchers’ Night, international, Sept 2019.
Renewable energy demonstration, Cardiff, May 2019.
Community Centre Careers Day, Cardiff, March 2019.
Museum After Dark, Cardiff, Feb 2019.
European Researchers’ Night, Bristol, Sept 2018.
Secondary School, Figueres, May 2018.

International Electrotechnical Commission (IEC) Committee Assistant (2020/21) for TC-8/SC-8A (Grid Integration of Renewable Energy Generation) – Working Group 6 ‘Operational Behaviour and Coordinated Control between Renewable Energy and HVDC systems’.

Institute of Engineering & Technology’s ‘Best Conference Paper 3rd prize’, RPG, Oct 2019.

CEPRI, winter 2020/21.
Efacec, winter 2020.

With Scottish Power Energy Networks, 2020.

German (2019 onwards);  contributed to successful funding proposal application (2020); Relay Protection Forum, Beijing (2020);  ACDC international conference, Coventry (2019);  BIN@Porto (2018).  Network meetings: KU Leuven (2021), Cinergia & UPC (2020), Cardiff University (2020), Elia (2019), DTU (2019), Uporto & Efacec (2018) and UPC (2018).  Imperial College London: IEEE Workshop on Representations of Power Electronics for Grid Dynamic Studies (2019).  Cardiff University: Science Busking workshop (2019); Research & Presenting workshop (2019).

I come from China and received my BSc and MSc degree in Electrical Engineering from Zhejiang University, China in 2012 and 2015, respectively.  I then joined an HVDC company in China as a power electronics engineer.

My research interests are power electronics-based power systems, eg off-shore wind energy systems, LCC and VSC HVDC systems; and I worked on stability and reliability during my engineering experience.

Being a member of the Marie Curie Early Stage Researchers (ESRs) and working for the InnoDC project at Cardiff University is a great honour.  I am now working on the topic ‘Development of fast and discriminative HVDC grid protection’, which is one of the most challenging problems for HVDC systems, especially for the multi-terminal DC system.  The ESRs are given a great opportunity to solve these problems by working with outstanding universities, professors and leading industries.

A PhD is not only a degree, but is also a way of life.  I will treasure my time working for InnoDC and my contribution to the project.

My hobbies are reading, swimming and badminton.  And I aim to explore new areas during my time in Wales.

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