Predefined-Time Sliding Mode Control with Prescribed Convergent Region  

作　　者：Ke Shao Jinchuan Zheng 

机构地区：[1]Tsinghua Shenzhen International Graduate School,Tsinghua University,Shenzhen 518055,China [2]School of Science,Computing and Engineering Technologies,Swinburne University of Technology,Hawthorn,VIC 3122,Australia [3]IEEE

出　　处：《IEEE/CAA Journal of Automatica Sinica》2022年第5期934-936,共3页自动化学报（英文版）

摘　　要：Dear editor,K1 In recent years,the finite-time and fixed-time control techniques have drawn much attention.This letter will present a new method for designing a predefined-time adaptive sliding mode controller with prescribed convergent region.More specifically,class function is used to construct the sliding function,and to achieve a real sliding mode,the function is also adopted in designing the adaptive gain without knowing the disturbance’s upper bound(DUB).Compared to the existing finite-time and fixed-time controllers,the key superiority of the proposed method is that the system can converge to a prescribed arbitrarily small region in predefined time irrespective of the initial condition.In addition,the control signal is bounded along the settling period,where the settling time instance can be estimated without conservation.

关 键 词：PRESCRIBED designing LETTER 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]