A Review of Dynamic Wireless Charging System for Electric Vehicles and IoT Technology

Venkateswara Rao Kurra; Jyothsna Thummala; Amarendra Reddy B.

Abstract

Dynamic charging of Electric Vehicles (EVs) by Wireless Power Transfer (WPT) is a key emerging technology in the field of power electronics. Even though Electric vehicles (EVs) are beneficial to the environment, they have their own limitations with respect to charging difficulties and mileage anxiety. These problems are overcome by dynamic wireless power transfer (DWPT) technology. By DWPT technology the size of the main storage battery can be reduced, significantly reducing cost and weight. In a typical dynamic charging system coil embedded in the roadway, referred to as primary pads, are energized sequentially as a vehicle mounted coil moves over them. Magnetic coupling between the coils allows power to be transferred to the EV. This paper presents IoT technology, cyber-attacks, and security. Using magnetic (inductive) coupling, a primary pad powered by the grid wirelessly transfers energy to a secondary pad placed beneath an EV in a conventional WPT charging setup. Power converters can be categorised into two main groups based on their location: transmitter-side and receiver-side conversion. Transmitter-side conversion can be single- or dual-stage, whereas receiver-side conversion can be accomplished with a rectifier alone or with a rectifier plus dc-dc converter.