Abstract: “The main reason for power loss during transmission and distribution is the resistance of wires used for grid and as growing all technologies in the world, nowadays one of the efforts is trying for accessing the power without wires. Wireless power transmission systems are designed to transmit power without using wires. In this paper Wireless Power Transmission is defined in detail and some of its applications are mentioned. Also components of a Wireless Power Transmission system are explained. Different types of Wireless power Transmission Systems are mentioned and described in detail along with their advantages and shortcomings. Then a comparison is performed between different PWT systems.”

Keywords: WPT; Resonance coupling; Inductive coupling