Tuesday 7 December 2021


Chairs welcome



UK's Progress in defining the needs of Grid Forming power electronic converters
Antony Johnson, National Grid (ESO)

Chair: Carl Barker


Themed discussion group

Market approach for energy based services; should delivering inertia, damping, etc. be a requirement or a procured service

Moderator: Andrzej Adamczyk



Session 1a, The integration and use of Grid Forming in power systems

Chair: Colin Davidson

Session 1b, Assessment of HVDC control stability

Chair: Chidinma Agwu

Session 1c, HVDC integrating offshore Wind

Chair: Ben Marshall


Providing Synchronous Grid Forming Capability through HVDC Transmission

Carl Barker, Andrzej Adamczyk, John Fradley, Omar Jasim, GE Grid Solutions, UK


Estimation of symmetrical components with fast dynamics for VSC-HVDC

Pablo Briff, GE Renewable Energy, UK


A new control method for fault-ride-through of HVDC-connected offshore wind parks

Omar Jasim, Pablo Briff, Aleem Abid, GE Renewable Energy, UK


Inertial Support by Virtual Synchronous Machine Control of a MMC-based VSC HVDC Link

Francesco Giacomo Puricelli, Adedotun Jeremiah Agbemuko, Jef Beerten, KU Leuven, Belgium


Application of phasor-based functionality to HVDC control in reduced system strength

Mohammad Golshani, Douglas Wilson, Seán Norris, GE Digital, UK, Ian Cowan, Md Habibur Rahman, Benjamin Marshall, National HVDC Centre, UK


Dynamic studies on HVDC-OWF systems – Impact of WTG on HVDC performances

Hani Saad, Markus Vor Dem Berge, RTE-international, France, Benjamin Marshall, Oluwole D. Adeuyi, HVDC Centre, UK, Razvan Pabat-Stroe, Scottish Power Renewables, UK


Assessment of droop and VSM equivalence considering the cascaded control dynamics

Sam Harrison, Callum Henderson, Panagiotis N. Papadopoulos, Agusti Egea-Alvarez, University of Strathclyde, UK


Equivalence and Accuracy Evaluation of Linearized State-Space Models of the Modular Multilevel Converter for Small-Signal Stability Analysis

Ozgur Can Sakinci, Jef Beerten, KU Leuven, Belgium


A Systematic Review of DC Wind Farm Collector Cost-Effectiveness

Victor Timmers, Agusti Egea-Alvarez, University of Strathclyde, UK, Aris Gkountaras, Siemens Energy, Germany


Effect of short circuit ratio and current limiting on the stability of a virtual synchronous machine type grid-forming converter

Arash Fazel Darbandi, Ajinkya Sinkar, Aniruddha Gole, University of Manitoba, Canada


Passivity-Based Sensitivity Analysis regarding Control Structures in Grid-Following MMC-HVdc Applications

Carolin Hirsching, Alexander Bisseling, Michael Suriyah, Thomas Leibfried, Karlsruhe Institute of Technology (KIT), Germany, Simon Wenig, Max Goertz, TransnetBW GmbH, Stuttgart


The use of Multi-Purpose Interconnectors to meet net zero by 2050

David Devoy, Christopher Smith, Morris Bray, Elizabeth Wells, Rajiv Lodhia, Martin Moran, National Grid Ventures, UK


Interfacing FACTS with HVDC Panel


Themed discussion group

Can grid forming converters do better than synchronous machines

Moderator: Andrzej Adamczyk

Session 2a, Sub-System Simulation and Modelling

Chair: Mike Barnes

Session 2b, Control & Protection of HVDC and FACTS

Chair: Dechao Kong

Session 2c, Increasing Renewable's impact on the existing AC grid

Chair: Chidinma Agwu


Representative Modelling of Very Long HVDC Cables

Josh Schipper, Radnya Mukhedkar, University of Canterbury, New Zealand, Saijie Sim, Quy Dang, Sun Cable Pty Ltd, Australia


Hardware-in-the-loop tests and analysis of HVDC systems impact on distance protection performance

Di Liu, Qiteng Hong, Adam Dyśko, Dimitrios Tzelepis, Campbell Booth, University of Strathclyde, UK, Ian Cowan, Bharath Ponnalagan, National HVDC Centre, UK


Cooling of large rotating machines in highly renewable electricity systems

Vijay Shinde, Jan Braam, Hendrik Steins, Stephan Werkmeister, Siemens Energy, Germany


On modeling of air-core inductors for DC protection studies

Willem Leterme, Dirk Van Hertem,

Ku Leuven, Belgium, Christian Niederauer, Alexander Gaun, Coil Innovation, Austria


Evaluate HVDC Protection and Control Schemes Using High Speed Process Bus Technology

Shane Jin, RTDS Technologies Inc, Canada, Tim Stott, GE Grid Integration Solutions, UK

Session 2.5, VSC Switching Algorithms



Analysis of the Coupling of a Lightning Wave with an Overhead Line

Boumaiza Mostefa, Labed Djamel, University Constantine, Algeria


A Novel Method to Provide Harmonics Damping to VSC-HVDC Converters

Luiz Souza, Amit Kumar, Karolina Carvalho, GE Grid Solutions, UK


Optimal Switching of Submodules in Modular Multilevel Converters

E. P.-Araujo, S. D.-Tavakoli, O. G.-Bellmunt, Universitat Polit`ecnica de Catalunya, Spain, S. Fekriasl, VITO, Belgium, M. Bazargan, Power Technologies Limited, UK


End of Day 1

Wednesday, 8 December 2021


Chairs welcome



Chris Smith, National Grid (ventures)
Chair: Carl Barker


Themed discussion group

Future of bulk vs distributed generation; is the view that we will slowly walk away from bulk power generation in favour distributed generation still true considering the increasing rating of renewable generation plants?

Moderator: Andrzej Adamczyk



Session 3a, Operating experiences (lessons learned) from existing HVDC and FACTS installations

Chair: Ben Marshall

Session 3b, Power electrinic integration in distribution systems

Chair: Mike Barnes

Session 3c, AC Frequency Dynamics (Part 1)

Chair: Omar Jasim


Mid-life refurbishment of an HVDC interconnector control system

Sam Gibson, Mutual Energy Limited, Northern Ireland, Nathaniel Cowton, TNEI, England, Mojtaba Mohaddes, TransGrid Solutions, Canada, Helmut Klimsa, Siemens Energy, Germany


The integration of renewable Generation with Electric Vehicle Charging

Barrie Murray, Electricity Market Services, UK


Dynamic Adjustment of a VSC’s Reactive Current Limit to Improve Frequency Stability

John Fradley, Carl Barker, Li Zou, GE Grid Solutions, UK


Considerations and type tests for steep fronted dv/dt and di/dt fault events in Voltage Sourced Converter HVDC valves

Colin Davidson, Alistair Burnett, Mikel Olalquiaga-Sam-Emeterio, GE Grid Integration Solutions, UK, Theodor Heath, The University of Manchester, UK


Protection of LVDC networks integrating smart transformers: The case of LV engine Falkirk trial site

Vasileios Psaras, Rafael P. Alzola, Ibrahim Abdulhadi, Graeme Burt, University of Stratchclyde, UK, Ali Kazerooni, SP Energy Networks, UK, Francis Shillitoe, WSP, UK


Impact of fast frequency response on power system transient stability

Zaichun Zhang, Surat Asvapoositkul, Robin Preece, The University of Manchester, UK

Session 3.5a, Line commutated Converter (LCC) HVDC in AC power system

Chair: Amit Kumar


Application of a distribution Statcom to manage network voltages

Orla Martin, NIE Networks, UK, Simon Terry, Nathaniel Bottrell, Ricardo Energy & Environment, UK


Investigating Frequency Services to Stabilise Low Inertia Power Systems

Kantitat Sasompholsawat, Robin Preece, The University of Manchester, UK


Calculation method for the contribution of HVDC stations with line-commutated convertes (LCC) to the AC short-circuit current

Andreas Saciak, Uriel Mora, Gerd Balzer, Jutta Hanson, Technical University of Darmstadt, Germany


Research on energy storage configuration and system scheduling optimization strategy in wind-photovoltaic-energy storage-charging topology scenario

Jun Zhuang, China Electrical Power Research Institute, China



Frequency restoration reserves procurement with HVDC systems

Abhimanyu Kaushal, Hakan Ergun, Dirk Van Hertem, KU Leuven, Belgium


Test Case_Modular SSSC and LCC-based HVDC Link Technical Synergies

Sebastian Hincapie, Camilo A. Ordonez, Mario Patino, Alejandro Duque, Smart Wires Inc, USA





Lifecycle of HVDC interlink session

Rajat Aggarwal, Mott MacDonald


Themed discussion group

Future of grid level simulations – will today’s approach hold; RMS to EMT? . Will we have to increase the model fidelity around medium or even low voltage networks?

Moderator: Andrzej Adamczyk

Session 4a, Utilisation of Battery Energy Storage Systems (BESS)

Chair: Ahmed Zobaa

Session 4b, Large network Simulation

Chair: Anna Ferguson

Session 4c, AC Frequency Dynamics (Part 2)

Chair: John Fradley


STATCOM+BESS modelling and harmonic analysis

Damian Vilchis-Rodriguez, Arsim Ahmedi, Mike Barnes, The University of Manchester, UK, Shuhang Shen, Zhongdong Wang, University of Exeter, UK Siyu Gao, National Grid, UK


EMT Simulation of the British Grid

Sean Kelly, Transmission Excellence, UK Djaved Rotom, Xiaolin Ding, National Grid, UK


Hybrid algorithm of particle swarm Optimization and Grey Wolf Optimizer for Load Frequency control aor Interconnected Power Systems

M.A.Sobhy, M.Ezzat, Hany M. Hasanien, Y. Abdelaziz, Ain Shams University, Egypt


Evaluation of a flexible solution, using a BESS scheme to supply 11kV distribution network in islanded mode during disturbances

Dimitrios Vozikis, Abdullah Emhemed, Stewart Hynds, WSP, UK, Maciej Filla, Sarah Rigby, SSEN, UK


An accurate model for steady-state and dynamic analysis of the Sicilian network with HVDC interconnections

Rossano Musca, Eleonora Riva Sanseverino, Gaetano Zizzo, Univeristy of Palermo, Italy, A. L’Abbate, RSE, Italy

Session 4.5c, Multi-terminal HVDC converter control and proetion

Chair: Dechao Kong


Analysis and design of modular multilevel converters with partial integration of energy storage systems

Leandro D O Porto, Florian Errigo, Florent Morel, SuperGrid Institute, France


DC segmentation: A promising solution to improve angle stability of stressed power systems

Mathieu Robin, Juan-Carlos Gonzalez-Torres, Abdelkrim Benchaib, SuperGrid Institute, France Javier Renedo, Aurelio Garcia-Cerrada, Pablo Garcia-Gonzalez, Instituto de Investigación Tecnológica, Spain


A double bus configuration with multi-port DC circuit breakers for DC switching stations

Shuai Shao, Kenichiro Sano, Tokyo Institute of Technology, Japan





A MISO Fault detection for HVDC grids

Ilka Jahn, Mehrdad Nahalparvari, Staffan Norrga, KTH Royal Institute of Technology, Sweden


End of Day 2