Systematic Design of Robust Event-Triggered State and Output Feedback Controllers for Uncertain Nonholonomic Systems

• 成果类型: Article
• 署名作者: Zhang, Pengpeng; Liu, Tengfei; Jiang, Zhong-Ping
• 署名单位: Northeastern University - China; New York University
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2020.2982609
• 发表日期: 2021
• 页码: 213-228
• 关键词: Output feedback; uncertainty; Robust control; measurement errors; State feedback; systematics; disturbances; event-triggered control; global asymptotic regulation; nonholonomic systems; uncertainties

摘要

This article studies the event-triggered control problem for nonholonomic systems in the chained form with disturbances and drift uncertain nonlinearities. Both the cases of state-feedback and output-feedback are investigated. To address the effects of nonholonomic constraints in event-triggered control, a new systematic design integrating a state-scaling technique and set-valued maps are proposed. A crucial strategy is to transform the event-triggered control system into an interconnection of multiple input-to-state stable systems, to which the cyclic-small-gain theorem is applied for event-based controller synthesis. It is shown that the cyclic-small-gain-based design scheme leads to Zeno-free event-triggered controllers. For the output-feedback case, a new nonlinear observer is designed to deal with the sampling errors. Interestingly, the obtained results are new even if the plant model is disturbance-free. Both numerical and experimental results validate the efficiency of the proposed cyclic-small-gain-based event-triggered control methodology.