电液伺服滑模消抖控制差分优化研究及仿真

Research and Simulation of Electro-hydraulic Servo Sliding Mode Debounce Control of Differential Optimization

为建立电液伺服控制系统低抖振滑模控制模型,离线优化控制算法,采用差分优化对滑模因子和饱和函数边界层参数进行优化,将输入输出误差和控制输入作为优化指标。设置个体拥有30个染色体,在MATLAB/Simulink中对系统进行正弦激励,系统从零初始条件启动,设置每代3s仿真时间,迭代次数为50次,仿真后得到优化的滑模因子和边界层厚度,优化后得到了较好的位置跟踪精度及消抖效果。

In order to establish a low-jitter sliding mode control model for electro-hydraulic servo control system,optimization control algorithm offline is used.Using differential optimization to optimizing the sliding mode factor and saturation function boundary layer parameters,the input and output errors and control inputs are optimization indicators.The individual is set to have 30 chromosomes.Sinusoidal excitation is used in MATLAB/Simulink.The system starts from zero initial condition,3 seconds simulation time per generation,40 iterations,the optimized sliding mode factor and thickness of the boundary layer is obtained after the simulation,and the convergence speed and the position tracking accuracy and debounce performance is better after optimization.