关键词: 直接进给轴, 直线电机, 伺服参数, PSO, 数学模型, Matlab/Simulink

Abstract:

The purpose of this study is to explore the method of tuning servo parameters for direct feed drive, which can finally improve the fastresponsiveness, following precision and antiinterference performance of direct feed drive. The main difficulty in using the traditional method to tune servo parameters is analyzed and a servo parameters tuning method of direct feed drive based on PSO algorithm is proposed. First of all, the servo system mathematical model for direct feed axis is established. Secondly, the paper gives the implementation method to tune servo parameters for direct feed drive by the PSO algorithm. Finally, the movement characteristics of direct feed drive are simulated by Matlab/Simulink. The simulation results show that the improved PSO algorithm yields better dynamic behavior of the direct feed drive axis than the conventional servo parameters tuning method, improving the fast-responsiveness, following precision and anti-interference performance of direct feed drive.

Key words: direct feed axis, linear motor, servo parameters, PSO, mathematical model, Matlab Simulink