DocumentCode :
1705148
Title :
Stability margin analysis of multivariable aircraft control system under single loop perturbation
Author :
Li Fei ; Hong Yingdong ; Xiong Zhihua ; Wang Jingchun
Author_Institution :
Dept. of Autom., Tsinghua Univ., Beijing, China
fYear :
2013
Firstpage :
1448
Lastpage :
1452
Abstract :
The multivariable aircraft control system probably becomes unstable caused by those perturbations occurred in all control loops simultaneously or only one of the loops. This paper presents a method to evaluate the stability margin of multivariable aircraft control system under single-loop perturbations by using the structured singular value. By introducing the diagonal multiplicative perturbation matrix at the system input node, system stability margin under single-loop perturbations can be calculated. The evaluation method can handle with three types of the single-loop perturbations, including complex perturbation, amplitude perturbation and phase angle perturbation. The method can evaluate more accurately the stability margin of the multivariable closed-loop system under single-loop perturbations. Simulations on a typical lateral-loop simulation model of a kind of aircraft and an F16 simulation model are given, and the results show the effectiveness.
Keywords :
aerospace simulation; aircraft control; closed loop systems; matrix algebra; multivariable control systems; perturbation techniques; stability; F16 simulation model; amplitude perturbation; complex perturbation; diagonal multiplicative perturbation matrix; lateral-loop simulation model; multivariable aircraft control system; multivariable closed-loop system; phase angle perturbation; single loop perturbation; stability margin analysis; structured singular value; Aerospace control; Atmospheric modeling; Educational institutions; Electronic mail; NASA; Periodic structures; Stability analysis; Multivariable Aircraft Control System; Single Loop Perturbation; Stability Margin; Structured Singular Value;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control Conference (CCC), 2013 32nd Chinese
Conference_Location :
Xi´an
Type :
conf
Filename :
6639655
Link To Document :
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