Development of a 5 kW Inductive Power Transfer System Including Control Strategy for Electric Vehicles

Conference: PCIM Europe 2014 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/20/2014 - 05/22/2014 at Nürnberg, Deutschland

Proceedings: PCIM Europe 2014

Pages: 8Language: englishTyp: PDF

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Petersen, Marinus; Fuchs, Friedrich W. (University of Kiel, Institute of Power Electronics, Kaiserstr. 2, 24143 Kiel, Germany)

In this contribution a dimensioning and analysis of an Inductive Power Transfer (IPT) system for Electric Vehicles exemplarily for a system with a battery voltage of 370 V and an output power of 5 kW is presented. First by magnetic field analysis an oval-shaped single-sided magnetic coupler design is determined. Series-Series (SS) compensation topology is presented and shown to be suitable for the IPT system. The magnetic coupler inductances are determined on the basis of minimum power transfer capability for a resonance frequency of 60 kHz. Output power is controlled by a primary DC/DC-Converter. Simulations and experimental results show good conformity with analytical approach. An efficiency of 90.5 % is realized in the laboratory for an output power of 5 kW and a coupling coefficient of 0.46.