超磁致伸缩致动器中的时滞建模与Smith控制策略  

Modeling of Time-delay in Giant Magnetostrictive Actuator and Smith Strategy

作　　者：舒亮[1] 陈定方[1] 卢全国[1,2] 黄珍[3] 

机构地区：[1]武汉理工大学智能制造与控制研究所,武汉430063 [2]南昌工程学院,南昌330006 [3]武汉理工大学自动化学院,武汉430063

出　　处：《系统仿真学报》2009年第10期3017-3021,共5页Journal of System Simulation

基　　金：国家863高技术研究发展计划基金(2003AA414011);现代制造质量工程湖北省重点实验室开放基金(LMQ2006A01);南昌工程学院青年基金项目(2006KJ014)

摘　　要：分析了超磁致伸缩致动器中的时滞环节及其机理,将可控恒流源和由驱动线圈组成的电感电路结合,运用试验方法对其进行整体建模,引入Smith控制策略来解决超磁致伸缩致动器中的时滞问题;研究了扰动情况下以及系统模型参数发生变化的情况下,时滞环节对超磁致伸缩致动器动态性能的影响;通过对比试验,给出了一种能同时满足系统动态性和鲁棒性要求的解决方案。The time-delay and its causes in giant magnetostrictive actuator were analyzed. Besides, the controllable power and inductance were integrated with experimental techniques when modeling of time-delay in giant magnetostrictive actuator. The integrated way demonstrated a more efficient effect comparing with conventional methods. Also, Smith strategy was proposed to solve time-delay in giant magnetostrictive actuator The influence of time-delay in giant magnetostrictive actuator dynamic performances was discussed, especially in condition of disturbance and variational parameters. A new solution satisfying both dynamics and robust was proposed based on comparison experiments.

关 键 词：超磁致伸缩 时滞 SMITH预估器 扰动 鲁棒性 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]