车用飞轮储能装置再生制动试验台研究

Research of Regenerative Braking Test Rig of Flywheel Energy Storage for Vehicular Application

针对电动汽车制动能量的回收与再利用现状,提出一种将飞轮储能装置耦合于车辆传动系统的混合动力方案,阐述了车辆运行过程中飞轮储能装置的3种工作模式:制动能量回收模式、存储能量输出模式及回收能量保持模式。设计了车用飞轮储能装置再生制动试验台及能量回收试验系统,确定以能量回收率作为指标分析和评价飞轮储能装置的能量回收效果。惯性飞轮加速至不同旋转速度时所具有的旋转动能模拟车辆以不同速度制动时的能量,完成了多目标车速下的能量回收试验,结果表明,受传动比制约,储能飞轮进行能量回收存储时存在能量平衡点,能量回收率平均值为25.28%,所开发的试验台从体系结构到控制方案都能够很好地满足制动能量回收系统的控制需求。

According to the research situation of electric vehicle braking energy recovery, a new hybrid scheme of flywheel energy storage device coupling to vehicular powertrain is proposed. Three operation modes consist of brake energy recovery mode, storage energy output mode, recovery energy hold mode of flywheel en- ergy storage device during vehicle operation process are presented. The vehicular flywheel energy storage device regenerative braking test rig and experimental system are designed, and the energy recovery rate is regarded as evaluation index to analyze and evaluate the energy recovery effect of flywheel energy storage device. The energy recovery tests under multiple vehicle speed are carried out by taking the rotational kinetic energy of flywheel to simulate the vehicle kinetic energy during braking under different speeds The experimental results show that energy storage flywheel has energy balance in view of transmission ratio restriction during energy recovery storage process, and the average energy recovery rate is 25.28%. The developed test rig is able to satisfy the control demand of regenerative braking system from the architecture to the control scheme.