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International Journal of Energy and Thermal Applications Review Article

Smart Wireless Charging Infrastructure for Electric Vehicles

  1. Ravikant Nanwatkar Department of Mechanical Engineering, Sinhgad Technical Education Society's NBN Sinhgad Technical Institutes Campus, Ambegaon, Pune
  2. Ashish Baad Department of Mechanical Engineering, Sinhgad Technical Education Society's NBN Sinhgad Technical Institutes Campus, Ambegaon, Pune
  3. Atharv Hole Department of Mechanical Engineering, Sinhgad Technical Education Society's NBN Sinhgad Technical Institutes Campus, Ambegaon, Pune
  4. Kunal Abhang Department of Mechanical Engineering, Sinhgad Technical Education Society's NBN Sinhgad Technical Institutes Campus, Ambegaon, Pune
  5. Nirankar Dhotre Department of Mechanical Engineering, Sinhgad Technical Education Society's NBN Sinhgad Technical Institutes Campus, Ambegaon, Pune
  6. Mandar Dalvi Department of Mechanical Engineering, Sinhgad Technical Education Society's NBN Sinhgad Technical Institutes Campus, Ambegaon, Pune

Abstract

Wireless Power Transfer (WPT) of Electric Vehicles (EVs) is a potential technology with large scale potential to change how EVs may be charged, eliminate range anxiety, and simplify charging infrastructure. As opposed to the existing conductive charging systems that necessitate physical contact between two charging points, WPT makes power transfer possible regardless of an air gap between charging and the receptive points, making it possible to recharge EVs practically automatically, both when they are parked, and when they are in motion. This non-contact method of energy transfer is usually accomplished in two ways, which are termed as inductive power transfer (IPT) and capacitive power transfer (CPT). However, IPT, which uses magnetic coupling between two coils (primary and secondary), is the best-studied in the EV usage, thanks to its comparatively high power and efficiency levels. Important developments of WPT to EVs are resonant compensation topologies to achieve high transfer power efficiency, optimization of placement alignment between the transmitter and receiver coils, and adaptive control methods that can ensure high performance considering operating variations. Nevertheless, wireless EV charging has a number of engineering and commercial obstacles to overcome notably the power transfer efficiency in low misalignment cases, the cost of coil designs and power electronics and the issue of stray electromagnetic emissions as a safety issue. The state of affairs is similar in the field of interoperability and scaling the technology to its broader application to the masses, which are places of inquiry by researchers and industry stakeholders. The current study seeks to summarize the status of WPT technology in the EV market, explain the technical issues that need to be addressed to empower the commercialization of wireless charging, and point out some recent developments that can lead to the popularization of wireless EV charging as an effective and safe means of doing automobile energy transfer.

Keywords

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