文章基本信息

标题：Robust Output Feedback Controller For a Class of Nonlinear Systems with Actuator Dynamics ⁎
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作者：Amgad Mohamed ; Mazen Alamir
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2018
卷号：51
期号：25
页码：275-280
DOI：10.1016/j.ifacol.2018.11.118
语种：English
出版社：Elsevier
摘要：AbstractThis paper addresses a simple robust output feedback controller, which suits a class of nonlinear dynamical systems. It takes into account the dynamics and limitations of the actuator. This setting appears in industrial problems such as flow rate control for hydraulic turbines which is used for speed control, where controller gains tuning is important to avoid violent input signals that could excite unstable dynamics, in addition to the limitation of the actuator in use. A systematic approach is proposed to compute the parameters of a simple control law optimally to minimize the tracking error. This approach is divided into two steps. Firstly, computing bounds on some of the system’s parameters and variables, then solving a nonlinear constrained optimization problem (offline). Stability analysis is carried out to guarantee that obtained parameters stabilize the system while keeping the tracking error below a certain bound. A numerical example is given to illustrate the relevance of the proposed controller.
关键词：KeywordsRobust nonlinear controloutput feedbackactuator dynamics