一种连续可导的近似滑模控制及其仿真研究  

A Contimuously and Differentiable Approximate Sliding Mode Control and Its Simulation

作　　者：邢晓波 胡剑波[1] 王应洋 李俊 XING Xiao-bo;HU Jian-bo;WANG Ying-yang;LI Jun(School of Materiel Management and Safety Engineering,Air Force Engineering University,Xi’an 710051,China)

机构地区：[1]空军工程大学装备管理与安全工程学院,西安710051

出　　处：《火力与指挥控制》2018年第9期84-88,共5页Fire Control & Command Control

基　　金：国家重点基础研究发展计划基金资助项目(2014CB744900)

摘　　要：针对一般的滑模变结构控制方法的不连续和不可导,结合饱和函数和继电特性连续化函数的特性,提出了一种连续且可导的改进型符号函数近似算法,同时设计了一种近似滑模控制方法,该方法有效地削弱了一般的滑模变结构控制中存在的抖振现象,稳定性分析证明了所设计的控制器能够保证整个系统的鲁棒性。数字仿真结构表明了该方法的有效性。Aiming at the characteristics of discontinuous and differentiable of the sliding mode variable structure control method,combined with the characteristics of the continuous function of the saturation function and the relay characteristic,a continuous and derivable improved improved symbol function approximation algorithm is proposed.,at the same time,an approximate sliding mode control method is designed.This method effectively weakens the chattering phenomenon in the general sliding mode variable structure control.The stability analysis proves that the designed controller can guarantee the robustness of the whole system.The numerical simulation structure shows the effectiveness of the method.

关 键 词：非线性系统 滑模变结构控制 符号函数 近似滑模控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TJ810.376[自动化与计算机技术—控制科学与工程]