Title :
Bifurcation control for maglev system with two state feedback delays
Author :
Li, Xiaolong ; Zhang, Lingling ; Zhang, Zhizhou ; She, Longhua ; Huang, Lihong
Author_Institution :
Dept. of Mechatron. Eng. & Autom., Nat. Univ. of Defense Technol., Changsha
Abstract :
Time delay is a kind of common nonlinearity, which is consisted in many parts of suspension system of high speed maglev train.In this paper, the dynamic behavior of suspension system of maglev train with time-delayed velocity and acceleration feedback signal is considered with rigid guideway. Taking time delay as its bifurcation parameter, the condition with which the Hopf bifurcation may occur is investigated. Centre manifold reduction is applied to get the Poincare normal form of the nonlinear system so that we can study the relationship between periodic solution and system parameter. Simulation verifies that time delays can change the current complicated dynamic behavior.
Keywords :
bifurcation; delays; feedback; magnetic levitation; railways; Hopf bifurcation; Poincare normal form; bifurcation control; maglev system; state feedback delays; Accelerometers; Bifurcation; Control systems; Delay effects; Electromagnets; Magnetic levitation; Nonlinear dynamical systems; State feedback; Vehicle dynamics; Vehicle safety; Centre manifold; Hopf bifurcation; Maglev system; Poincare normal form; Time delay;
Conference_Titel :
Information and Automation, 2008. ICIA 2008. International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-2183-1
Electronic_ISBN :
978-1-4244-2184-8
DOI :
10.1109/ICINFA.2008.4608004
