基于动态规划的挖掘机混合动力系统优化与试验  

Hybrid System Optimization and Testing of Excavator Based on Dynamic Programming Algorithm

作　　者：龚进[1] 陈保卫[1] 龚俊[1,2] 张大庆 胡鹏[1,2] 李曙[1] 高继松 

机构地区：[1]中南大学高性能复杂制造国家重点实验室,长沙410083 [2]山河智能装备股份有限公司国家级企业技术中心,长沙410100

出　　处：《机械设计与研究》2016年第1期137-142,共6页Machine Design And Research

基　　金：国家科技支撑计划资助项目(2014BAA04B01)

摘　　要：为了提高液压挖掘机混合动力系统的效率,研究了挖掘机混合动力系统的控制策略与参数优化方法。通过分析挖掘机混合动力系统的工作原理与各元件的特性,建立挖掘机混合动力系统的仿真模型。针对挖掘机工况特点,以系统燃油经济性为目标,提出一种基于动态规划的能量管理控制策略,实现能量管理的全局优化。在前述动态规划算法基础上,对系统进行参数匹配分析,并通过MATLAB对优化结果进行仿真。最后,通过样机进行试验,对系统优化方法的可行性与有效性进行验证。For the purpose of improving the efficiency of excavator hybrid system, the control strategies and parameter optimization methods were researched. The simulation model was established after analyzing the working principal of hybrid system and characteristics of each opponent. Aiming at the working condition of excavators, an energy management control strategy targeting at fuel economy of system and based on dynamic programming algorithm was proposed in order to realize the global optimization of energy management. Then the system parameter matching and analysis were finished based on the dynamic programming algorithm illustrated above, and the simulation to the optimization results was accomplished based on MATLAB. Finally, the feasibility and validity after system optimization were verified through experiment of testing machine.

关 键 词：混合动力挖掘机 控制策略 动态规划 参数匹配 系统优化 

分 类 号：U415.51[交通运输工程—道路与铁道工程]