螺纹磨床在线自动补偿磨削系统设计与实现  

The Design and Realization of The Online Auto-compensation System for Screw-grinding

作　　者：李琳[1] 李永华[1] 李可佳[1] 刘元东[1] 

机构地区：[1]中南林业科技大学电子与信息工程学院,中国长沙410004

出　　处：《湖南师范大学自然科学学报》2008年第4期62-65,共4页Journal of Natural Science of Hunan Normal University

基　　金：国家自然科学基金资助项目(50321402)

摘　　要：根据交流伺服系统的强时变性、非线性的特点,采用了分段模糊PID控制算法对电机进行速度调控,当速度误差较大时采用Bang-Bang控制,能尽快的减小误差;当速度误差控制在较小的范围之内时采用模糊控制,能使误差进一步减小;实验证明采用模糊PID控制算法可以将丝杆的精度控制在几个微米之内.Because the AC servo system was a non-linear system and its parameters were time-varying, the fuzzy-PID arithmetic was the subsection-control method which can regulate the speed of servo electrical machine, the Bang-Bang control method can decrease error in a short time when the speed error is high, and PID control method can decrease error further when the speed error can control in a smaller bound. Experiments proved the precision of the ball screw was limited in several microns.

关 键 词：交流伺服系统 误差 模糊控制 模糊PID 

分 类 号：O211.62[理学—概率论与数理统计]