电动汽车用高效回馈制动控制策略  

High efficiency regenerative braking control strategy for electric vehicle

作　　者：李珂[1] 张承慧[1] 崔纳新[1] 

机构地区：[1]山东大学控制科学与工程学院,山东济南250061

出　　处：《电机与控制学报》2008年第3期324-330,共7页Electric Machines and Control

基　　金：国家自然科学基金(50477042);教育部高等学校博士点基金(20040422052);山东省自然科学基金资助项目(Z2004G04)

摘　　要：为了提高电动汽车再生制动能量的回收和利用效率,在分析电动汽车典型循环工况制动时驱动电机的工作特点,并在同步旋转坐标系下考虑铁损的感应电机动态数学模型制动时能量转换关系的基础上,提出了基于损耗模型的高效制动效率优化控制策略。根据制动时的车速和制动转矩需求,重新分配感应电机的转矩和励磁电流,并结合给出的电动汽车前后轮制动力分配方案,可实现制动能量的高效回收利用。通过仿真软件ADVISOR中的对比仿真结果验证了控制策略的有效性,制动能量回收率有明显改善,提高了电动汽车电驱动系统效率,有利于合理利用其有限的能量延长电动汽车续驶里程。To improve the efficiency of recycling and using of the regenerative brake energy for electric vehicles, a high efficiency brake optimization control strategy based on loss model is proposed. The strategy is proposed on the basis of analyzing the braking operation characteristic of electric motor and typical driving cycles and the energy conversion relations in the dynamical mathematic model of the induction motor in consideration of iron losses in synchronous rotating reference frame, The torque current and magnetizing current are redistributed according to the demands of the speed and brake torque under braking operation. High efficiency recycle and use of the brake energy can be achieved by combining the given brake force distribution strategy. The comparative simulation results in advanced vehicle simulator （ADVISOR） software show the effectiveness of the proposed control strategy. The recycling ratio of the brake energy and the efficiency of the propulsion system are improved obviously, and the electric vehicle travel distance is enhanced by rational use of the limited energy.

关 键 词：电动汽车 再生制动 感应电机 效率优化 

分 类 号：TM346[电气工程—电机] U469.72[机械工程—车辆工程]