Modeling and analysis of inductively coupled power transfer system

This paper presents an experimental study of an Inductively Coupled Power Transfer (ICPT) system using a full bridge converter operating at variable frequency. Equivalent circuit model for ICPT systems are used to represent the total impedance seen by the power supply, by combining the primary and secondary network is detailed. A variable switching frequency controller is used to control the switching frequency of the converter to transmit the power through inductive coils are described. The modeling of ICPT system, design criteria and its controller details are discussed. Efficiency curves are plotted with respect to variation in frequency and load. The problem of frequency deviation that makes an inefficient power transfer have been investigated. The results obtained from this study provides a foundation and understanding for future design and control of ICPT systems.