05. - 07.06.2018
Power Electronics | Intelligent Motion | Renewable Energy | Energy Management
Advanced Solutions for Charging of Electric Vehicles
Tuesday, 05.06.2018, 11:00 - 12:40 hrs
Alfred Rufer, EPFL, CH
85kHz Band Wireless Charging System for EV or Electric Bus
We have developed a 44kW wireless charging system for electric buses, which achieves a reduction in radiated electromagnetic emissions by devising structure alignment. The receive output power of 44 kW or more was confirmed by test verification. And system efficiency exceeds 85%. Moreover we have conducted verification operation tests using electric buses running on public roads. The tests have verified that these wireless charging systems offer enhanced convenience and achieve the targeted power transmission efficiency.
Advanced Vehicle Charging Solutions Using SiC and GaN Power Devices
Very compact and highly efficient charging solutions for plug in hybrid and full electric vehicles are mandatory for the break trough of electric mobility. There fore designs for uni- and bidirectional chargers using SiC and GaN devices are presented. In the very challenging field of inductive charging, a small, lightweight solution is shown and the benefits of SiC MOSFETs compared to Si devices are evaluated.
System Architectures for Multiple Ports, Bidirectional and Buffered Charging Unit for EV's
Bidirectional buffered units for Multi-port charging of EV's are presented, allowing to charge with high power even if the line current capability is limited. The systems are also dedicated to operate as reactive power compensators, or to provide grid system services as V2G operation or other power smoothing functions.
Fraunhofer Institut für Integrierte Systeme und Bauelementetechnologie IISB, Erlangen, Deutschland
Dr. Bernd Eckardt:Since 2014 Head of Automotive Electronics Department2010-2013 Head of Vehicle Systems Group2007 -2010 Head of System Integration and Mechatronics Group2004 Join Fraunhofer IISB as Scientist in the field of power electronics1998-2003 Study Electric Engineering at the Friedrich Alexander University Erlangen-Nürnberg (FAU)
Toshiba, Fuchu-shi, Japan
Akihisa Matsushita received his B.S. and M.S. degrees in 2000 and 2002, respectively, in Electrical Engineering from Nagoya University. He is currently with Toshiba Corporation/Japan. His main research interests include electrical machines, power electronics for railway vehicle traction systems and motor drive systems. He is a member of the Institute of Electrical Engineering of Japan.
EPFL - Ecole polytechnique fédérale de Lausanne, Lausanne, Schweiz
Alfred Rufer is honorary professor in power electronics at the Swiss Federal Institute of Technology EPFL, Lausanne Switzerland. He has been leading the Industrial Electronics Lab (LEI-EPFL) from 1997 to 2016. Beneath many research projects in Power electronic circuits and applications, he has initialized several activities in energy storage systems and components, from the design and modeling of supercapacitor based power assistance systems to multiphysics modeling of complex storage devices as Vanadium Redox Flow Batteries or CAES, Compressed Air Energy Storage. Alfred Rufer has authored or co-authored more than 250 scientific papers in international conferences and journals. He has supervised over 30 PhD students. Prof. Rufer is a Fellow of the IEEE and has received many IEEE Transactions or Conference Prize Paper Awards. In addition, Alfred Rufer is a honorary board member of the PCIM conference where he served as a General Conference Director.