复合储能式混合动力系统全局最优控制策略研究

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（1.大连理工大学能源与动力学院，大连116024，中国；2.教育部海洋能源利用与节能重点试验室，大连116024，中国）

关键词：工程车辆；复合储能式混合动力系统；动态规划(DP)；能量管理；硬件在环(HIL)测试中图分类号：U489 文献标识码：A DOI:10.3969/j.issn.1674-8484.2025.06.007

Research on global optimal control strategy for hybrid power system with composite energy storage

LI Zhao1,LONG Wuqiang*1.2,TIAN Hua1,2

1.SchoolofEnergyandPower,DalianUniversityofTechnologyalianll6o24,China;2.KeyLaboratoryof MarineEnergy UtilizationandEnergy Conservation,MinistryofEducation,Dalian6o24,China)

Abstract:To address the insuffcient energy management effciency of composite energy storage hybrid systems in engineering vehicles undercomplex operating conditions,aglobal optimization strategy based on dynamic programming (DP)was proposed.This strategy constructed an optimal power allcation control modelusing load demand torque,thestateof charge (SOC)of hydraulicaccumulator,and battery SOCas state variables,andsolved the control sequence through inverse recursive-forward optimization.The feasibility of applying the DPstrategyin practical engineering was furthervalidated through hardware-in-the-loop testing. The results show that compared to rule-based (RB)and adaptive neural fuzzy inference system (ANFIS) strategies,the DP strategy increases the proportion of engine operation within the high-efficiency zone by

38.28% and 30.27% ,respectively. It reduces the comprehensive fuel consumption by 15.17% and 11.23% and the battery SOC fluctuation by 34.02% and 23.97% ,respectively.Theaverage SOCof the brake energy recoveryaccumulatorare increasedby 29.46% and 23.51% ，and theaveragebatterySOCare improvedby 11.57% and 8.62% ,respectively.These results demonstrate that the DP strategy effectively enhances engine efficiency，maintainsstable operation within the high-effciency zone,and achieves overallsystemenergy optimization.The DPstrategyprovides both theoretical justificationand practical solutions forenergy-saving control in construction machinery.

Key words:engineering vehicles; composite energy storage hybrid power system; dynamic programming (DP); energymanagement; hardware-in-the-loop (HIL) testing

工程车辆的能源效率优化对节能减排具有重要意义[1。（剩余17373字）