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.

中文翻译：

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基于超级电容存储的蓄能制动系统谐振变换器的设计，用于SAE一级方程式电动赛车

电动交通可以代表交通行业长期可持续发展的颠覆性技术。为实现这一目标，本文提出了一种模拟电动汽车（EV）进行SAE电动方程式竞赛的模型：电动汽车的所有子系统以及锂离子电池和超级电容器（UC）的混合存储均已实现。为了通过动能回收系统（KERS）将再生制动的动能存储在存储系统中。双向DC-DC谐振转换器在此应用于KERS以管理UC组件。讨论了所提出系统的工作极限，保持了软开关特性，结果表明转换器具有在升压和降压模式下均在谐振模式下工作的能力。缺点是谐振电感器中存在高电流峰值。在交织中使用不止一个转换器，并采用适当的容量因子，可以确保系统正常运行。