基于混合动力挖掘机的能量管理策略研究  

Research on Energy Management Strategy Based on Hybrid Power Excavator

作　　者：李震 

机构地区：[1]上海理工大学机械工程学院,上海

出　　处：《建模与仿真》2023年第3期2277-2285,共9页Modeling and Simulation

摘　　要：为提高混合动力挖掘机的节能效果,需要使发动机保持在最佳燃油点工作,因此提出了一种基于动态规划算法的控制策略。根据已知的挖掘机工作循环,利用动态规划算法,通过调节发动机的转速以及作用在发动机上的扭矩,使发动机保持在最佳燃油点工作。并以此得到挖掘机在给定工作循环时的最优控制变量轨迹。仿真结果表明,所使用的控制策略在不降低工作性能的情况下油耗降低了31.2%,显著提高了挖掘机的节能效果。To improve the energy efficiency of hybrid power excavator, it is necessary to keep the engine op-erating at the optimum fuel point, so a control strategy based on a dynamic planning algorithm is proposed. Based on the known work cycle of the excavator, the dynamic planning algorithm is used to keep the engine working at the optimal fuel point by adjusting the engine speed and the torque acting on the engine. This is used to obtain the optimal control variable trajectory of the excavator for a given work cycle. The simulation results show that the control strategy used reduces the fuel consumption by 31.2% without reducing the working performance, which significantly improves the energy efficiency of the excavator.

关 键 词：混合动力挖掘机 动态规划算法 能量管理策略 最优控制 节能效果 控制策略 显著提高 发动机 

分 类 号：TU6[建筑科学—建筑技术科学]