Quench limit cycle using different dither signal in a servo motor system

Chen, Seng-Chi; Mbitu, Elisabeth Tansiana

doi:10.1109/icamse.2016.7840182

Cited by 2 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many practical engineering problems involving chaos require control techniques to convert chaotic attractors into stable periodic orbits. Since the pioneering work of Ott et al [9], numerous methods for the control of chaos have been devised [10][11][12][13][14][15][16][17][18][19]. Improving the performance of a controlled magnetic bearing system and/or eliminating chatter behavior require the conversion of chaotic behavior into periodic motion.…”

Section: Introduction and System Descriptionmentioning

confidence: 99%

See 1 more Smart Citation

Nonlinear Dynamics and Suppressing Chaos in Magnetic Bearing System

Chang

2020

Mathematical Problems in Engineering

View full text Add to dashboard Cite

A nonlinear mathematical model of a magnetic bearing system has been obtained by applying a modified conventional identification technique based on the principle of harmonic balance. In this study, we examined the rich nonlinear dynamics of a magnetic bearing system with closed-loop control using phase portraits, Poincaré maps, and frequency spectra. The resulting bifurcation diagram can be used to evaluate the operational range of systems employing nonlinear actuators. Estimates of the largest Lyapunov exponent based on the properties of synchronization revealed the occurrence of chatter vibration indicative of chaotic motion. Various control methods, such as the state feedback control and the injection of dither signals, were then used to quench the chaotic behavior.

show abstract

Section: Introduction and System Descriptionmentioning

confidence: 99%

“…Improving the performance of a controlled magnetic bearing system and/or eliminating chatter behavior require the conversion of chaotic behavior into periodic motion. Two control methods have been developed [11][12][13][14][15] and dither control [16][17][18][19].…”

Section: Introduction and System Descriptionmentioning

confidence: 99%