全液压有轨锻造操作机旋转位置控制系统仿真研究

Simulation Study on Rotation Control System for Fully-hydraulic Forging Manipulators

针对400kN/800kN.m全液压有轨锻造操作机旋转控制系统的特点,通过MATLAB/Simulink和AMESim协同仿真技术对全液压有轨锻造操作机旋转液压伺服控制系统进行建模和仿真研究。仿真结果表明:基于模糊控制算法的控制系统可以自动适应全液压有轨锻造操作机的现场工作环境,动态输出PID控制器的各项调节参数,与基于普通PID算法的控制系统相比,增强了控制系统的鲁棒性和适应性;响应速度加快,提高了控制系统的实时性,使全液压有轨锻造操作机的运行更加平稳,控制精度提高了10%～20%,且负载越小,精度越高。

Considering the characteristics of fully-hydraulic forging manipulator control system,the MATLAB/Simulink-AMESim co-simulation technology was employed to simulate the system.The results show that fuzzy self-tuning PID algorithm-based system can comply with the field environment automatically and can dynamically output adjustable parameters to PID control algorithm;compared with the general PID algorithm,the response curve becomes smooth,and the control system robustness and adaptability get enhanced,as well as the accuracy increased by 10% to 20% together with smaller load and higher precision.