基于完全分布式架构和双变控制的电动挖掘机能耗优化分析  

Energy Consumption Optimization Analysis of Electric Excavator Based on Fully Distributed Architecture and Dual-variable Control

作　　者：杨海 苏利强 李怀义 刘晓辉 YANG Hai;SU Liqiang;LI Huaiyi;LIU Xiaohui(Jiangsu Xugong Construction Machinery Research Institute Co.,Xuzhou Jiangsu 221004,China)

机构地区：[1]江苏徐工工程机械研究院有限公司,江苏徐州221004

出　　处：《机床与液压》2025年第4期88-93,共6页Machine Tool & Hydraulics

摘　　要：针对传统集中式架构电挖传动效率低下、续航时间短的问题,提出基于完全分布式架构和双变控制的电动挖掘机。设计挖掘机动力系统与液压系统分布式构型,并分析分布式构型的工作原理与控制方法,根据系统构型设计双变控制策略,通过AMESim-Simulink联合仿真验证双变控制在单个电机泵系统中的控制效果,可知双变控制系统传动效率优于定转速控制与定排量控制。最后根据分布式系统架构与双变控制原理,搭建纯电动中型挖掘机整车仿真模型。结果表明:在相同挖掘甩方工况下,分布式架构挖机整车系统效率为71.7%,高于集中式架构传统挖机(48.5%);与传统挖掘机对比,所提双变控制分布式架构的挖掘机整车能耗降低30.6%。Aiming at the problems of low efficiency and short endurance of traditional centralized electric excavator,an electric excavator based on completely distributed architecture and dual-variable control was proposed.The distributed configuration of excavator power system and hydraulic system was designed,the working principle and control method of the distributed configuration were analyzed,the dual-variable control strategy was designed according to the system configuration,and the control effect of dual-variable control on a single motor pump system was verified by AMESIM-Simulink co-simulation.The transmission efficiency of the dual-variable control system is better than that of the constant speed control and the constant displacement control.Finally,according to the distributed system architecture and dual-variable control principle,the simulation model of the pure electric medium excavator was built.The results show that under the same excavation and dumping condition,the efficiency of the distributed architecture excavator vehicle system is 71.7%,which is higher than that the traditional centralized architecture excavator(48.5%);compared with the traditional excavator,the energy consumption of the proposed dual-variable control distributed architecture is reduced by 30.6%.

关 键 词：挖掘机 分布式架构 双变控制 能耗分析 

分 类 号：TH137[机械工程—机械制造及自动化]