Constant Output Design for Double-Sided LCC WPT System Based on Switch Controlled Capacitor and Novel Active Rectifier

Electric Vehicle (EVs) charging needs constant output mode, but in the case of load change and other conditions, the output voltage and output current are unstable. Based on double-sided LCC compensation, this paper presents an Inductively Coupled Power Transfer (ICPT) system based on Switch Controlled Capacitor (SCC) and novel active rectifier, and completes theoretical analysis and simulation calculation. Under the premise of ensuring efficient energy transmission, the system supports both constant output voltage and constant output current when load changes. Impedance matching can also be realized by means of active rectifier so as to improve efficiency, which is suitable for EVs charging and improves the stability of the system.