Improving the Performance of Wireless Charging System for Electric Vehicles Using PS-SS Topology to Achieve High Power Transmission Efficiency
الكلمات المفتاحية:
Wireless Power Transfer، PS-SS Topology، Electric Vehicle Charging، Resonant Capacitance، MATLAB Simulationالملخص
Highly efficient wireless power transfer system for charging electric vehicle batteries with high efficiency, based on a primary-series-secondary compensation (PS-SS) topology. The system is designed with a flat circular transmitter and receiver coil, a full-bridge inverter to convert DC to high-frequency AC, and a full-bridge rectifier on the receiving side to convert AC back to DC for battery charging. Resonant capacitors are used to adjust the frequency response and achieve resonant compatibility for the system . A working methodology based on accurate simulation using MATLAB was adopted to study the effect of several geometric variables on the efficiency of the system. The study included changes in the air gap, resonant capacitance, and load resistance . Four different operational cases were tested to evaluate the ultimate system efficiency and analyze its performance under realistic operating conditions. The results showed that optimizing, reducing the air gap , and precisely adjusting the capacitance values resulted in an efficiency exceeding 96% under optimal operating conditions. These results reinforce the importance of adopting the PS-SS topology with a well-thought-out engineering design to achieve reliable and highly efficient wireless charging systems suitable for modern electric vehicle applications
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