Abstract

© 2018 IEEE. In this paper, the parallel-series compensation approach, based on LCL circuit, for Inductive Power Transfer (IPT) is designed, analyzed, and assessed with respect to the seriesseries compensation approach for transportation applications, shedding light typically on railway systems. Moreover, the design of the primary and secondary coils is addressed since it influences the performance and efficiency of the IPT system. A study considering two different coil shapes, namely DD and oblong, is conducted to select a proper design that would provide a good coupling between the system's coils. Theoretical analysis and system design are provided for an electric railway vehicle with a rated power of 75 kW and a DC input voltage of 750V. Experimental results for a scaled down prototype, at an airgap of 1cm, are Prasented to validate the proposed concept. An output power of 215W with an efficiency of 93% of the IPT system has been achieved experimentally.

Abstract

The paper proposes the development of a set of rules for the resizing of inductive power transfer systems with particular attention to the ones dedicated to the charge of electric vehicles. These rules aim at the construction of down-scaled prototypes allowing the study and the design with benefits in terms of costs, time consumption and flexibility. The theoretical results are experimentally validated by comparing a 1.1 kW system with its down-scaled version. Document type: Article

Abstract

This study presents an inductive power transfer (IPT) system for electric vehicles (EVs) based on EE-shaped ferrite cores. The issues of the IPT system such as efficiency, air gap, displacement, dislocation, and motion are discussed. Furthermore, finite element analysis software is utilized to simulate the IPT system operated under large air gap conditions. Simulation and measurement results are presented to validate the performance of the proposed scheme and meet the requirements for bus-stop-powered EVs. Document type: Article