Compensator-Based Output Feedback Stabilizers for a Class of Planar Systems With Unknown Structures and Measurements

• 成果类型: Article
• 署名作者: Qian, Chunjiang; He, Shuaipeng; Zou, Yunlei
• 署名单位: University of Texas System; University of Texas at San Antonio; Yangzhou University
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2021.3079360
• 发表日期: 2022
• 页码: 2138-2143
• 关键词: Output feedback; lead; Nonlinear systems; Closed loop systems; observers; CONVERGENCE; asymptotic stability; Lead compensator; planar system; unknown measurement; unknown structure

摘要

This article considers the problem of output feedback stabilization for a class of nonlinear planar systems with unknown structures and measurements, which prevent the construction of conventional state observers. By taking advantage of the stability-increasing capability of a lead compensator, we propose a dynamic output feedback controller to globally stabilize the uncertain planar systems. For the special case of linear planar systems with unknown coefficients, a finite-time output feedback stabilizer based on a nonlinear compensator is constructed for a faster convergence rate.