摘要
根据锂离子电池高能量比和超级电容高功率密度比的特性,将两者优势互补构成电动汽车的双能量源复合电源。在AVL Cruise中搭建复合电源整车仿真模型,以汽车加速度、蓄电池荷电状态(SOC_b)和超级电容荷电状态(SOC_(uc))为输入,在Matlab/Simulink里设计模糊控制器,并将模糊控制器和整车仿真模型在新欧洲标准行驶循环(New European Driving Cycle,NEDC)工况下进行联合仿真。仿真结果表明,与单一锂离子电池作为能量源的电动汽车相比较,所建立的复合电源能够充分发挥超级电容的"削峰填谷"作用,减少大电流对电池的冲击,并减少能量损耗,使得电动汽车的续驶里程有所提高。
Battery and ultra-capacitor constitute a hybrid energy system of double power source to achieve mutual complementarity on the basis of high energy density of Li-Ion battery and high power densityof ultra-capacitor. A simulation model of electric vehicle equipped with hybrid energy system is established by AVL Cruise and a fuzzy control is designed by Matlab/Simulink. Then the co-simulation in the NEDC circulation condition is made. The simulation results show that the uhra-capacitor had a prominent effect of ＂clipped peak and filled channel＂ in the established hybrid power system, avoiding the big-current impact on the battery well and reducing the power loss and prolonging the driving range in comparison with the electric vehicle with single Li-Ion battery power system.
出处
《北京信息科技大学学报（自然科学版）》
2017年第2期60-65,共6页
Journal of Beijing Information Science and Technology University
基金
清华大学汽车安全与节能国家重点实验室开放基金课题资助(KF16032)
关键词
能量管理
复合电源
超级电容
加速度
模糊控制
energy management
hybrid energy system
ultra-capacitor
acceleration
fuzzy control
