DC and hybrid AC/DC - WG 2021-1



A growing number of sources and electricity loads are natively producing or using direct current (DC), such as: Renewable Energy Sources (RES), including PV panels and wind turbines, e-mobility solutions, storage units and most new electric appliances from domestic to industrial sectors. At the same time, a lot of progress is reported in terms of high-power electronic components, adapted DC breakers and solid-state power transformers.
This has resulted in several worldwide LVDC and MVDC network demonstration projects documented in the DC DISTRIBUTION NETWORKS WG 2019-1 report, showing the high grid flexibilization potential of DC technologies. It is now considered important to develop key standards for new DC network applications; this working group will focus on following these ongoing international developments and provide a platform to foster market-ready DC and hybrid AC/DC grid technologies, as well as applications.


The working group will cover:

DC components & solutions, planning issues, operational safety & experience, standardization and regulatory framework; 
 Use Cases:
   - LV and MV distribution networks (≤100 kVDC) use-cases;
   - public networks and industrial, buildings, factories, facilities, or other specialized networks.
 New, ongoing and demonstration projects will be followed to identify benefits, constraints, lessons learned and action lists. Legal, regulatory, standardization issues will be identified where these either speed up or 
hamper the development and the large-scale implementation of DC and hybrid AC/DC 
distribution networks.

The WG will investigate:
 DC vs AC economic viability, technical challenges, architecture and environmental /sustainability (energy efficiency and usage of sustainable resources) analysis
 DC and hybrid AC/DC grids issues, such as: resilience, protection, state-of-the-art and roadmap of DC components, metering, DC and hybrid AC/DC grids, interoperability & multivendor solutions
 How can DC solutions help to promote the energy transition to decarbonisation?
 Multiterminal DC and hybrid AC/DC grids, interoperability & multivendor solutions
 DC and AC/DC testing and validation infrastructure/-method

Convener :

Jambrich Gerhard, Austrian Institute of Technology, Austria

Members :

Ažbe Valentin, University of Ljubljana, Slovenia
Bauer Pavol, TU Delft, Netherlands
Burt Graeme, University of Strathclyde, United Kingdom
Cho Jintae, Korea Electric Power Research Institute (KEPRI), Korea
Dai Jing, Centrale Supélec, France
Griot Samuel, Nexans, France
Haghifam Mahmoud-Reza, Tarbiat Modares University, Iran
Kazerooni Ali, Scottish Power Energy Networks, United Kingdom
Lin Zhengyu,  Aston and Loughborough Universities, United Kingdom
Makkieh Ahmad, Schneider Electric, United Kingdom
Muñoz-Cruzado Alba Jesus Circe, EC H2020 project TIGON, Spain
Nasr Sarah, EDF, France
Novak Pavel, Schneider Electric, Germany
Peltoniemi Pasi, Lappeenranta University of Technology, Finland
Pena Alzola Rafael, University of Strathclyde, United Kingdom
Qu Lu, Tsinghua University, China
Rabinovici Raul, Ben Gurion University, Israel
Rose Maximilian, Schleswig-Holstein Netze, Germany
Rupp Stefan, Maschinenfabrik Reinhausen, Germany
Schichler Uwe, Technical University of Graz, Austria
Stammberger Hartwig, Eaton Bonn, Germany
Stokman Harry, DC Current BV (Schneider Electric), Netherlands
Wang Jack, Schneider Electric, FranceTundo Alessandro, Nexans, France
Wunder Bernd, Franhofer Institute Erlangen, Germany