液压系统群的相邻交叉耦合同步自抗扰控制

Active Disturbance Rejection Control for Adjacent Cross Coupling Synchronization of Hydraulic System Group

针对液压载重车的悬挂群系统在进行同步顶升作业过程中悬挂油缸受扰动导致的调整时间较长问题,提出在相邻交叉耦合控制策略基础上引入自抗扰环节对系统内外扰动进行主动补偿的控制方案。采用AMESim/Simulink联合仿真的方法对各缸同步过程进行仿真分析,将仿真结果和实际结果进行对比验证了仿真模型正确性。仿真结果表明,该控制方法在保证系统良好的同步控制效果的同时加快了系统的响应速度。研究结果对于同类工程车辆悬挂系统的同步控制有借鉴意义。

Aiming at the long adjustment time caused by disturbance in the process of simultaneous lifting objects in hydraulic trucks suspension system,based on the adjacent cross coupling control strategy,an active compensation scheme is proposed to compensate the internal and external disturbances.The AMESim/Simulink joint simulation method is used to simulate and analyze each suspension hydraulic cylinder,the simulation results are compared with the actual results to verify the correctness of the simulation model.The results show that the control algorithm can not only ensure the good synchronization control effect,but also accelerate the system response speed,the results can be used as a reference for suspension system synchronous control of similar engineering vehicles.