Simulation Analysis of MPC Control of Electro-hydraulic Position Servo Systems
Electro-hydraulic position servo systems are widely used in the control of large loads,fast and precise responses,but their time-varying non-linear characteristics make traditional control systems unable to achieve the desired control effect.Model Predictive Control(MPC)is suitable for control of time-varying non-linear systems because of its model-less,robustness and immunity to disturbances.In this paper,four control strategies,namely PID control,linear MPC,adaptive MPC and non-linear MPC,are used to simulate the control performance of electro-hydraulic position servo systems.The results show that linear MPC,adaptive MPC and non-linear MPC all perform better than PID control,with non-linear MPC having higher control accuracy,faster response speed and better anti-disturbance capability,and adaptive MPC having the second highest control accuracy,response speed and robustness.
electro hydraulic servo systemmodel predictive controlphysical modelPID control
万方数据
维普
