电动汽车制动能量回馈技术研究

制动能量回馈可实现能源再利用,有效提升电动汽车续驶里程。所以,制动能量回馈技术是电动汽车研发的关键技术之一。能量回馈效率最大化是制动能量回馈技术研究的重点,而制动能量回馈系统结构设计及控制策略是影响能量回馈效率的重要因素。基于此,首先给出了蓄电池、飞轮、超导、超级电容器和混合储能等电动汽车制动能量回馈系统常用储能技术的优缺点及其最新应用。而且,分析了几种典型的制动能量回馈系统及控制方法。其次,重点分析了几种常见的制动能量回馈控制策略。最后,提出了一种新型的电动汽车制动能量回馈系统,并分析了该系统的结构组成及其控制方法。

Research on Regenerative Braking Technology for Electric Vehicle

Regenerative braking (RB) can realize energy reused and effectively extend the driving mileage of electric vehicle (EV). Therefore, the RB is one of the key technologies in the research and development of EV. Research on the regenerative efficiency maximize is the focus of RB technology. The regenerative braking system (RBS) structure and its main control strategy are the important factors that impact the regenerative efficiency. Based on this, firstly, the commonly used energy storage technologies of EV RBS are summarized, such as battery, flywheel, superconductor, super capacitor (SC) and hybrid energy storage. The advantages, the disadvantages and the latest applications of these energy storage technologies are explained. Secondly, several typical RBSs and its control methods are analyzed. Thirdly, several common RB control strategies are analyzed emphatically. Finally, a novel EV RBS is presented, moreover, the structure and control methods of RBS are analyzed.