An Analysis and Optimization on Circuit Characteristics of Non-Contact Wireless Charging System for Electric Vehicles with the TS Resonant Network

摘要

The load characteristics of non-contact wireless charging system to electric vehicle are exploited in this paper to improve the output power and transmission efficiency of the system. Firstly, this paper makes a mathematical modeling for the TS-S wireless charging system based on Two-Port Network theory. Then, the features of constant voltage output, output power, and transmission efficiency are discussed later. The results show that TS resonant compensation network could improve the system's output power, and transmission efficiency. After that, the system's frequency and load resistance in the optimal working state are calculated. Finally, simulations and experimental results are presented to verify the correctness from theoretical derivations.