Nonlinear optimized adaptive trajectory control of helicopter

被引：17
作者：
Abaspour A. [1 ]
Sadati S.H. [1 ]
Sadeghi M. [1 ]
机构：
[1] Aerospace Engineering Department, Malek-Ashtar University of Technology, Babayi Highway, Tehran
来源：
Control Theory and Technology | 2015年 / 13卷 / 4期
关键词：
dynamic inversion; Helicopter; neural network; nonlinear model; NSGA-II; optimization; PCH;
D O I：
10.1007/s11768-015-4062-1
中图分类号：
学科分类号：
摘要：
This paper attempts to develop an optimized adaptive trajectory control system for helicopters based on the dynamic inversion method. This control algorithm is implemented by three time-scale separation architectures. Pseudo control hedging (PCH) is used to protect the adaptive element from actuator saturation nonlinearities and also from the inner-outer-loop interaction. In addition, to augment the attitude control system, two online adaptive architectures that employ a neural network are used. By tuning the neural network based on the system model, a better and faster learning will be achieved, but this is a frustrating and time consuming process. Due to complexity in accurate tuning of neural network, this paper introduces a non-dominated sorting genetic algorithm II (NSGA-II) for off-line optimization of the neural network. Thus, in the proposed method, the neural network can compensate model inversion error caused by the deficiency of full knowledge of helicopter dynamics more accurately. The effectiveness of proposed method is demonstrated by numerical simulations. © 2015, South China University of Technology, Academy of Mathematics and Systems Science, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg.
引用
收藏
页码：297 / 310
页数：13
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