Abstract
AbstractIn this paper, a combined multi‐resonant converter for electric vehicle (EV) charging is proposed. The primary side of the converter is composed of dual LCLCL five‐element multi‐resonant tanks which are placed in parallel, and they share the primary side‐switches. Further, it comprises two rectifier bridges on the secondary side that act as the output in series. By combining the two constant voltage (CV) frequencies of the multi‐resonant tanks with the CV frequency and the constant current (CC) frequency of the other multi‐resonant tank respectively, the converter can achieve the CC and the CV output respectively at fixed frequency in order to meet the EV charging requirements. Theoretically, the open‐loop control can achieve the CC and CV modes of the converter. In the entire load range, the zero voltage turn‐on (ZVS) of the primary‐side switches and the zero current turn‐off (ZCS) of the secondary‐side rectifier diodes are realized. In order to verify the feasibility and the reliability of the converter, a 3.3‐kW experimental prototype was built and experimental analysis was carried out. From the results, it is found that the maximum efficiency of the prototype is 97.29% and the overall efficiency is above 95%.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
