- 會議論文
Nonlinear Dynamics and Chaos Control for a Magnetic Ball Levitation
磁浮球之非線性動態與渾沌控制
並列摘要
This investigation verified the chaos motion of a magnetic ball levitation system with a ferromagnetic ball suspended in a voltage-controlled magnetic field, and explains a system for chaotic control. Then, the detailed dynamic behaviors are numerically investigated by means of Poincare maps, phase portraits, time responses, and frequency spectra. The results reveal that due to the realistic nonlinear characteristics of magnetic forces, period-doubling bifurcation has been observed to lead to chaos. Next, the largest Lyapunov exponent analysis is used to identify the onset of chaotic motion. Finally, we propose a state feedback control technique for the effective control of a chaotic magnetic ball levitation system. Some simulation results are presented to demonstrate the feasibility of the proposed approach.
延伸閱讀
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