Piecewise constant model predictive control for autonomous helicopters

被引:25
|
作者
Liu, Cunjia [1 ]
Chen, Wen-Hua [1 ]
Andrews, John [2 ]
机构
[1] Univ Loughborough, Dept Aeronaut & Automot Engn, Loughborough LE11 3TU, Leics, England
[2] Univ Nottingham, Nottingham Transportat Engn Ctr, Nottingham NG7 2RD, England
关键词
Model predictive control; Helicopter; Autonomous flight; Stability; Flight test; RECEDING HORIZON CONTROL; NONLINEAR-SYSTEMS; ROBUST STABILITY; DESIGN;
D O I
10.1016/j.robot.2011.04.004
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper introduces an optimisation based control framework for autonomous helicopters. The framework contains a high-level model predictive control (MPC) and a low-level linear controller. The proposed MPC works in a piecewise constant fashion to reduce the computation burden and to increase the time available for performing online optimisation. The linear feedback controller responds to fast dynamics of the helicopter and compensates the low bandwidth of the high-level controller. This configuration allows the computationally intensive algorithm applied on systems with fast dynamics. The stability issues of the high-level MPC and the overall control scheme are discussed. Simulations and flight tests on a small-scale helicopter are carried out to verify the proposed control scheme. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:571 / 579
页数:9
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