A discrete-time multivariable MRAC scheme applied to a nonlinear aircraft model with structural damage

被引：12
作者：
Guo, Jiaxing [1 ]
Tao, Gang [1 ]
机构：
[1] Univ Virginia, Dept Elect & Comp Engn, Charlottesville, VA 22904 USA
来源：
AUTOMATICA | 2015年 / 53卷
关键词：
Adaptive control; Aircraft systems; Discretization; Discrete-time systems; Fault-tolerant control; Infinite zero structure; Nonlinear systems; Structural damage; REFERENCE ADAPTIVE-CONTROL; FAULT-TOLERANT CONTROL; UNCERTAIN SYSTEMS; ACCOMMODATION; FEEDBACK;
D O I：
10.1016/j.automatica.2014.12.036
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a new discrete-time multivariable model reference adaptive control (MRAC) scheme is developed and its application to continuous-time nonlinear systems with structural damage is studied, for which several key technical issues are addressed. The relation of the infinite zero structures of the continuous-time nonlinear system and the linearized discrete-time system is established. Invariance properties of the system infinite zero structure and control gain matrix of the linearized discrete-time system under damage are studied for an aircraft flight control application. Desired system stability and asymptotic output tracking are ensured for the linearized discrete-time system with dynamics and damage uncertainties. A discrete-time linearization-based control design is constructed for control of a high-fidelity continuous-time nonlinear aircraft model with uncertain dynamics and structural damage. Simulation results show the desired system performance and demonstrate the effectiveness of the developed discrete-time adaptive control method for the nonlinear aircraft system model. del (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：43 / 52
页数：10
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