Multimode Charging of Electric Vehicles

Conference: PCIM Europe 2016 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/10/2016 - 05/12/2016 at Nürnberg, Deutschland

Proceedings: PCIM Europe 2016

Pages: 9Language: englishTyp: PDF

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Authors:
Jung, Marco; Seibel, Axel; Steffen, Jonas; Lempidis, Georgios; Kirchhof, Joerg; Gaber, Roland; Marklein, Rene (Fraunhofer IWES, Germany)

Abstract:
In this paper, a complete multimode (wired and wireless) charging and discharging infrastructure and their implementation in an electric vehicle are presented. The overall system management and a control strategy for increasing the efficiency are discussed. In order to increase the grid connection of an electric vehicle, a highly flexible bidirectional battery charging concept has been developed which is capable of charging 1-phase grid wired, 3-phase grid wired as well as wireless with an inductive power transfer system. Ancillary services and self-consumption are possible due to the bidirectional power flow capabilities. The multiple use of components, for saving costs and overall installed size, requires a compromise in efficiency and dimensioning of power electronic components, since they must satisfy all requirements for a bidirectional 1-phase and 3-phase wired grid connection as well as a wireless grid connection of the battery. To reduce the negative aspects by reason of over dimensioning for different charging modes, a new operating control technique will be presented to find an acceptable solution. Measurements of the efficiency and electromagnetic compatibility document the performance and electromagnetic safety of the system. A proof of concept and the system integration in an electric vehicle is demonstrated.