Design of a Resonant Converter for a Regenerative Braking System Based on Ultracap Storage for Application in a Formula SAE Single-Seater Electric Racing Car

Electronics

Sonia Leva¹  Alberto Dolara¹  Giacomo Moretti¹  Marco Mussetta¹  YalesRomulo de Novaes² 

[1] Dipartimento di Energia, Politecnico di Milano, 20133 Milano, Italy;Power Electronics Laboratory, Universidade do Estato de Santa Catarina, Joinville, SC 89219-710, Brazil;

关键词: resonant converter;    ultracaps;    regenerative braking;    electric vehicle;   

DOI  :  10.3390/electronics10020161

来源: DOAJ

【 摘 要 】

Electric mobility can represent a game changing technology for the long-term sustainability of the transportation sector. Pursuing this target, a model to simulate an Electric Vehicle (EV) for Formula SAE Electric competition is herein proposed: all the subsystems of the EV and the hybrid storage of the Li-ion batteries and Ultra-Capacitors (UCs) are implemented, in order to store the kinetic energy of the regenerative braking in the storage system through the Kinetic Energy Recovery System (KERS). A bidirectional DC-DC resonant converter is herein applied to the KERS to manage the UC pack. The operational limits of the proposed system, keeping the soft-switching properties, are discussed, and the results show the capability of the converter to operate under resonant mode in both boost and buck mode. A drawback is the presence of high current peaks in the resonant inductor. The use of more than one converter in interleaving and the adoption of a suitable capability factor ensure the proper operation of the system.

【 授权许可】

Unknown