纯电驱液压挖掘机复合动作电液能量回收再利用系统研究

Research on the Electro-hydraulic Energy Recovery and Reuse System in Compound Operation of Pure Electro-hydraulic Excavator

为了改善纯电驱液压挖掘机工作过程中大量能量浪费的情况,提出一种基于超级电容和蓄能器的挖掘机复合动作能量回收与再利用系统。首先对该系统的主要元件进行参数匹配和泄漏分析,然后基于SimulationX平台建立某6 t纯电驱液压挖掘机能量回收再利用系统仿真模型,对标准工况下的一个循环周期进行运行及能耗特性的仿真研究。结果表明,该系统比原纯电驱液压挖掘机系统实现了29%的节能,达到了良好的节能效果。

In order to improve the large amount of energy waste in the working process of pure electric drive hydraulic excavator,a composite action energy recovery and reuse system of excavator based on supercapacitor and accumulator was proposed.In this paper,parameter matching and leakage analysis are carried out for the main components of the system,and based on SimulationX platform,a simulation model of the energy recovery and reuse system of a 6 t pure electric drive hydraulic excavator is established,and its operation and energy consumption characteristics are simulated and studied in a cycle under standard working conditions.The results show that the system achieves 29%energy saving compared with the original pure electric drive hydraulic excavator system,and achieves good energy saving effect.