International Journal of Science, Engineering and TechnologyAuthors: Dr.A.L.Renke, Ayush Katarkar, Sandeep Pawar, Shubham Patyekar, Sanket Suryawanshi
Abstract: Wireless power transfer (WPT) technology represents a transformative approach to electric vehicle charging, eliminating the requirement for direct physical cable connections while offering enhanced convenience, improved safety, and enabling dynamic charging capabilities that substantially extend effective driving range. This comprehensive review examines contemporary developments in wireless electric vehicle charging systems, synthesizing research across multiple technical domains including inductive power transfer principles, magnetic coupler design optimization, compensation network topologies, power electronic converter technologies, advanced control strategies, and infrastructure integration. Resonant inductive power transfer systems operating at standardized frequencies of 85 kHz have emerged as the most extensively developed and commercially viable approach, achieving demonstrated power transfer efficiencies exceeding 90% across practical air gaps of 150-200 mm [1]. The review systematically addresses critical technical challenges including misalignment tolerance between transmitter and receiver coils, electromagnetic field safety and regulatory compliance, and optimization of coil geometries to enhance coupling efficiency [2]. Recent innovations in dual and triple decoupled coil configurations maintain output voltage stability within 3% across ±150 mm lateral misalignment while achieving system efficiencies exceeding 94% [3]. Dynamic wireless charging systems enabling in-motion power transfer represent an emerging frontier, with advanced control strategies incorporating disturbance observers and adaptive frequency tracking maintaining power fluctuations within 0.2% despite vehicle motion [4]. Integration with renewable energy resources and smart grid infrastructure enables sustainable charging infrastructure with electricity cost reductions exceeding 36% compared to conventional grid-dependent systems [5]. Standardization efforts addressing interoperability between equipment from multiple manufacturers have achieved successful operation across diverse coil types with efficiency levels consistently exceeding 85% [6]. The comprehensive synthesis of contemporary research demonstrates that wireless electric vehicle charging technology has reached sufficient maturity for practical infrastructure deployment, with continued advancement focused on cost reduction, enhanced reliability, expanded interoperability standards, and seamless integration with renewable energy and intelligent transportation systems to accelerate widespread electric vehicle adoption and support global sustainable transportation objectives.
DOI: https://doi.org/10.5281/zenodo.20352437
