电动挖掘机能量回收系统分析

Analysis of Energy Recovery System for Electric Excavator

为降低挖掘机能量的消耗,该文设计了一种以超级电容为储能元件的能量回收液压系统,为了回收的电能可以在挖掘机工作中直接进行再利用,为此将以前挖掘机的内燃机驱动变为发动机驱动。通过建立超级电容数学模型,结合该系统设置超级电容主要参数,同时结合AMESim与MATLAB进行联合仿真。仿真结果表明,能量回收系统在满足传统液压系统工况下,挖掘机动臂在下放与上升一个周期内,能量的消耗减少了32.22%,该能量回收系统具有较好的节能效果。

In order to reduce the energy consumption of excavators,this paper designs an energy recovery hydraulic system with supercapacitors as energy storage components.In order to recover the electrical energy that can be directly reused during excavator work,the internal combustion engine of the previous excavator is driven It becomes engine driven.Through the establishment of a super capacitor mathematical model,combined with the system to set the main parameters of the super capacitor,at the same time combined with AMESim and matlab for joint simulation.The simulation results show that the energy recovery system meets the working conditions of the traditional hydraulic system,and the energy consumption of the excavating boom is reduced by 32.22%within a cycle of lowering and raising.The energy recovery system has a good energy-saving effect.