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arXiv 1201.5964nlin.CDmath.DS
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中立型时滞系统不稳定稳态的控制

Control of unstable steady states in neutral time-delayed systems

K. B. Blyuss, Y. N. Kyrychko, P. Hoevel, E. Schoell

摘要:

研究了一类中立型时滞微分方程的时滞反馈镇定问题。通过研究相应的双时滞特征方程的特征值谱,讨论了受控系统的稳定性。根据系统的原始参数和控制时滞,导出了镇定控制强度的解析表达式。理论和数值结果表明,控制强度和两个时间延迟之间的相互作用提供了一些区域的参数空间中的时间延迟反馈控制可以成功地稳定,否则不稳定的稳态。

英文摘要:

We present an analysis of time-delayed feedback control used to stabilize an unstable steady state of a neutral delay differential equation. Stability of the controlled system is addressed by studying the eigenvalue spectrum of a corresponding characteristic equation with two time delays. An analytic expression for the stabilizing control strength is derived in terms of original system parameters and the time delay of the control. Theoretical and numerical results show that the interplay between the control strength and two time delays provides a number of regions in the parameter space where the time-delayed feedback control can successfully stabilize an otherwise unstable steady state.

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