功率多频段分解的车载混合储能系统能量管理策略  

Energy management strategy for on-board hybrid energy storage system with multi-band power decomposition

作　　者：石智强 卢仁祥(指导)[1] SHI Zhiqiang;LU Renriang(School of Business,Shanghai Dianji University,Shanghai 201306,China)

机构地区：[1]上海电机学院商学院,上海201306

出　　处：《上海电机学院学报》2025年第1期33-38,共6页Journal of Shanghai Dianji University

摘　　要：为提高混合储能系统的功率分配和能量管理效率,延长蓄电池循环使用寿命,提出一种功率多频段分解的混合储能系统能量管理策略。将电动汽车的需求功率按高、中、低3个频段进行分解,在兼顾2个储能单元SOC的反馈情况下进行功率分配,并根据储能单元SOC值的高低将混合储能系统划分成“五区四态”的运行模式。在该运行模式下,蓄电池在功率需求中频段电能由中向低的过渡过程减缓,在功率需求高频段低电量状态下的高倍率放电过程也得到了缓解。仿真结果表明:该能量管理策略的功率分配精度更高,与储能系统的特征适配性更好,在提升能量管理效率的同时,延长了蓄电池的循环使用寿命。In order to improve the power allocation and energy management efficiency of the hybrid energy storage system and extend the battery cycle life,a hybrid energy storage system energy management strategy with multi-frequency band power decomposition is proposed.The demand power of the electric vehicle is decomposed into three frequency bands:high,medium and low.And the power allocation strategy is designed with consideration of the feedback of the SOC of the two storage units.According to the SOC of the two storage units,the hybrid energy storage system is divided into"five zones and four states"operation mode.In this operation mode,the transition from medium power to low power in the medium frequency band of power demand is slowed down.And the high rate discharge process in the low power state in the high frequency band of power demand is also alleviated.Simulation results demonstrate that the power management strategy achieves higher power allocation accuracy and better function adaptability with the energy storage system,and improves the efficiency of power management while effectively extending the battery cycle life.

关 键 词：电动汽车 功率分配 多频段分解 混合储能系统 能量管理 

分 类 号：TK02[动力工程及工程热物理]