NeMo and ELECTRIFIC jointly organised a one-day workshop on Electric Vehicle Systems, Data and Applications on 12 June 2018 in Karlsruhe, Germany, in conjunction with the ACM e-Energy 2018 Conference.

The ACM e-Energy annual international conference has been held previously in Hong Kong, Canada, India, the UK, the USA and Spain. The 2018 conference was hosted by the Karlsruhe Institute of Technology (KIT) over four days from Tuesday 12 to Friday 15 June, with the first day being dedicated to externally organised workshops: EV-Sys was one of four workshops taking place simultaneously on that day.

The EV-Sys2018 workshop builds up on previous workshops held as part of the ACM e-Energy Conferences in Waterloo, Canada (2016) and Hong Kong, China (2017), to deal with EV Systems, Data, and Applications.

The workshop on 12 June was organised in partnership with the ELECTRIFIC project,  which aims to enable seamless electromobility through smart vehicle-grid integration, and as such complements the activities pursued within NeMo.

The workshop focused on the following thematic areas:

  • Methodological concepts through the improvement of the battery management system;
  • Extensive use of information and communication technologies (ICT) to increase energy efficiency and thus the range of the vehicle;
  • The revision of the electric and electronic architecture to reduce complexity and the number of components and interconnections, whilst improving energy efficiency, functionality and modularity;
  • The development of tools and networks to enable the interoperable charging and services provision to owners of electric vehicles.

Co-Chairman Dr. Robert Basmadjian opened the event with an overview of the current passenger EV market in Europe and worldwide, as well as challenges including range, availability of charging stations, impact on the power grid, lack of common charging infrastructure and lack of interoperability. Following an introduction of NeMo and ELECTRIFIC, Olivier Lenz from FIA addressed perceptions of electromobility based on a public survey on light electric vehicles in six European cities recently conducted by the ELVITEN project. The discussion points from the morning session also covered NeMo’s impact on the grid, how to build B2B and B2C services, and possible prioritisation of users.

Five peer-reviewed papers were presented during the workshop following a call for papers:

“Experimental performances assessment of a dynamic wireless power transfer system for future EV in real driving conditions” by Stéphane Laporte, Gérard Coquery, Marc Revilloud, Virginie Deniau (VEDECOM, France) and Angelos Amditis (ICCS, Greece). This paper focuses on an innovative prototype of a dynamic Wireless Power Transfer system for EVs that was developed by Qualcomm CDMA Technologies GmbH and integrated and demonstrated by VEDECOM at the Satory test site (Versailles, France) as part of the EU project FABRIC (https://fabric-project.eu).

“Dynamic EV Battery Health Recommendations” by Markus Eider and Andreas Berl (Deggendorf Institute of Technology, Germany). The authors suggest so-called dynamic recommendations for battery health that are able to advise the user in specific situations with respect to battery use. Recommendations from literature were broken down into a list, which can be automatically computed. They also propose the dynamic creation of recommendations for display to the EV user just in time.

“Flexibility Reward Scheme for Grid-Friendly Electric Vehicle Charging in the Distribution Power Grid” by Philipp Danner, Wolfgang Duschl, Dominik Danner (Bayernwerk AG, Germany), Ammar Alyousef and Hermann de Meer (University of Passau, Germany). This paper introduces a new concept, called the Reward Scheme, the main objective of which is to advertise grid-friendly charging processes in order to avoid power quality issues in the distribution grid. To achieve this, the authors distinguish between guaranteed and flexible power at a charging spot. Using the guaranteed power as a reference, the authors calculated the grid-friendliness factor of different flexible charging rates, which in turn are proposed to the grid user.

“Approximation Scheduling Algorithms for Electric Vehicle Charging with Discrete Charging Options” by Majid Khonji, Sid Chi-Kin Chau and Khaled Elbassioni (Masdar Institute, Khalifa University, Abu Dhabi, United Arab Emirates). The authors studied the scheduling optimization problem of EV charging in the presence of discrete charging options with minimum power requirements, and presented an approximation algorithm to solve the scheduling optimization problem of EV charging, which has a provably small parameterized gap with the optimal solution.

“Coordinating E-Mobility Charging for Frequency Containment Reserve Power Provision” by Jonas Schlund Ronny Steinert and Marco Pruckner (Friedrich-Alexander University Erlangen-Nürnberg, Germany). This paper presented a novel approach of coordinating battery electric vehicle charging processes as an ancillary service for the grid. This concept enables the mass integration of battery electric vehicles into the electrical power system and mobilizes flexibility options for large-scale frequency stability.

The EV-Sys workshop was attended by 32 participants from Germany, France, Portugal, Belgium, Czechia, Denmark, Italy, Greece, the United States, India and the United Arab Emirates, hailing from universities, research institutes and industry.

All workshop presentations are available at https://evsys2018.iccs.gr/index.php/material/6-draft-programme.html

All workshop papers are available at https://conferences.sigcomm.org/eenergy/2018/workshops.php