Dynamic Wireless Charging System for Electrical Vehicles

Electric vehicles are seen as an alternative option given the scarcity of resources. In order to increase the usage of EVs in daily life, convenient and reliable methods of charging EV batteries are very important, so Wireless Power Transfer (WPT) is being considered as a solution to charge the batteries. In this project, prototype hardware for charging system with dual coils and operating frequency of 60 kHz will be designed and implemented. Plug-in electric vehicles (PEVs) are overwhelmed by the need for plug-in cables and chargers, the galvanic isolation of the onboard electronics, the bulk and cost of this charger, and the large assemblies of energy storage systems (ESS) required. But through the use of wireless charging systems, wireless charging capability offers customer convenience, inherent electrical isolation, grid-side regulation, and reduces the size of onboard ESS through on-road dynamic charging. The main goal of our project is to design and develop a vehicle-grade antenna system that uses resonant magnetically-coupled wireless energy transfer technology to EV charging system. The use of WPT in electric vehicles enables clean, comfortable and safe operation. At the heart of WPT systems are primary and secondary coils. These coils form a weakly coupled system where the coupling coefficient is between 0.1 and 0.5. To transmit the rated power, both sides must be tuned by resonance capacitors. The operating frequency is a central selection criterion for all applications and particularly influences the dimensioning of the coils and the selection of the components for the power electronic circuit. A resonant wireless transmission system is designed for vehicle charging technology.