Inductive Wireless Power Transfer Charging for Electric Vehicles–A Review

Abstract

Considering a future scenario in which a driverless Electric Vehicle (EV) needs an automatic charging system without human intervention. In this regard, there is a requirement for a fully automatable, fast, safe, cost-effective, and reliable charging infrastructure that provides a profitable business model and fast adoption in the electrified transportation systems. These qualities can be comprehended through wireless charging systems. Wireless Power Transfer (WPT) is a futuristic technology with the advantage of flexibility, convenience, safety, and the capability of becoming fully automated. In WPT methods resonant inductive wireless charging has to gain more attention compared to other wireless power transfer methods due to high efficiency and easy maintenance. This literature presents a review of the status of Resonant Inductive Wireless Power Transfer Charging technology also highlighting the present status and its future of the wireless EV market. First, the paper delivers a brief history throw lights on wireless charging methods, highlighting the pros and cons. Then, the paper aids a comparative review of different type's inductive pads, rails, and compensations technologies done so far. The static and dynamic charging techniques and their characteristics are also illustrated. The role and importance of power electronics and converter types used in various applications are discussed. The batteries and their management systems as well as various problems involved in WPT are also addressed. Different trades like cyber security economic effects, health and safety, foreign object detection, and the effect and impact on the distribution grid are explored. Prospects and challenges involved in wireless charging systems are also highlighting in this work. We believe that this work could help further the research and development of WPT systems..

Electric Vehicles: Bibliometric Analysis of the Current State of the Art and Perspectives

“…Due to the flexibility that wireless charging offers, the EV charging process can also occur during temporary stops or even while driving, thus allowing, a reduced power capacity for the batteries [73]. The Wireless Power Transfer (WPT) is a wireless charging method and stands out as futuristic technology with the advantage of flexibility, convenience, and safety and the capacity to become fully automated in addition to its high efficiency and easy maintenance [74].…”

Research on Constant Voltage/Current Output of LCC–S Envelope Modulation Wireless Power Transfer System

“…In recent research, the compensation is very important in reducing the VA rating of the compensation at both sides and the CC/CV charging. In [26], S-LCC, LCC-S and LCC-LCC are compared in detail. Especially, LCC-S compensation topology shows that the WPT system still has a good transmission efficiency in a wide range of load changes [27][28][29][30][31].…”

A Comparative Analysis of S-S and LCCL-S Compensation for Wireless Power Transfer with a Wide Range Load Variation

“…To increase the efficiency and reduce the reactive power of the WPT system, it is necessary to achieve the resonant condition for both transmitter and receiver sides [3]. There are four types of traditional resonant topologies using a capacitor compensated coil on one side as Series-Series (S-S), Series-Parallel (S-P), Parallel-Series (P-S), Parallel-Parallel (P-P) [4].…”