安徽大学学报（自然科学版）2026，Vol.50Issue(2)：50-57,8.DOI:10.3969/j.issn.1000-2162.2026.02.007
基于扰动观测器非线性系统预设时间全局镇定
Global stabilization of nonlinear systems with prescribed-time based on disturbance observer
摘要
Abstract
For a class of strict-feedback nonlinear systems with external perturbations,a global stabilization strategy based on perturbation observer was proposed.Firstly,a prescribed time disturbance observer was designed so that the estimation error converges to zero in the prescribed time.Secondly,a new time-varying scaling method was introduced to transform the original finite-time stabilization problem into the global stabilization problem of the prescribed time after the transformation.Finally,the feasibility and effectiveness of the proposed scheme were verified through specific simulation example.关键词
扰动观测器/全局预设时间/时变尺度变换/严格反馈非线性系统/普通李雅普诺夫函数Key words
disturbance observer/global prescribed-time/time-varying scale transformation/strict-feedback nonlinear system/common Lyapunov function分类
信息技术与安全科学引用本文复制引用
张特冰,陈明,盖玉林,李丹,王雪娇..基于扰动观测器非线性系统预设时间全局镇定[J].安徽大学学报（自然科学版）,2026,50(2):50-57,8.基金项目
国家自然科学基金资助项目(U21A20483) （U21A20483）
