模拟转台位置伺服系统的H_∞混合灵敏度控制  

H_∞ Mixed Sensitivity Control of Simulation Turntable Position Servo System

作　　者：吴艳敏[1] 崔光照[1] 姚莉娜[1] 黄春[1] 

机构地区：[1]郑州轻工业学院电气信息工程学院,郑州450002

出　　处：《组合机床与自动化加工技术》2014年第1期121-124,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金资助项目(61272022)

摘　　要：针对模拟转台位置伺服系统的特点和性能要求,采用混合灵敏度控制方法设计了H∞鲁棒控制器。选择了合理的加权函数,给出了加权函数的奇异值曲线。利用Matlab/Simulink进行了仿真实验并与经典PID控制结果比较,验证了H∞混合灵敏度控制的良好跟踪特性和对参数摄动的鲁棒性。研制了基于PC机的模拟转台实时数控系统,用C语言设计了H∞控制器的软件,并进行了初步试验研究。实验结果表明,H∞混合灵敏度控制的模拟转台伺服系统具有更高的控制精度、更强的鲁棒性和抗干扰能力,具有很强的实用性。According to the characteristics and performance requirements of simulation turntable position servo system, a mixed sensitivity design method is applied to designH∞ robust controller. Reasonable weighting functions are selected, and the singular value curves are given. Simulation experiment of H∞ mixed sensitivity control is conducted based on Matlab / Simulink toolbox. The results are compared with of the classical PID control, which verify the good tracking characteristics and robustness to parameter perturbation of this method. Turntable real-time numerical control system is developed base on PC computer; the H∞ control software is designed by C language, and the preliminary experiment is made. The results show that the simulation turntable servo system of H∞ mixed sensitivity control have higher control precision, stronger robustness and anti-interference ability which can be much applied.

关 键 词：模拟转台 位置伺服 H∞控制 混合灵敏度控制 

分 类 号：TH165[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]