Effect of Integral Feedback on a Class of Uncertain Nonlinear Systems: Stability and Induced Limit Cycles
Effect of Integral Feedback on a Class of Uncertain Nonlinear Systems: Stability and Induced Limit Cycles
复制标题
积分反馈对一类不确定非线性系统的影响:稳定性和诱发极限环
DOI:
10.1115/1.4037837
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Das, Tuhin
中科院分区:
文献类型:
--
作者:
Abeysiriwardena, Singith;Das, Tuhin
The theoretical problem addressed in the present work involves the effect of integral feedback on a class of uncertain nonlinear systems. The intriguing aspects of the problem arise as a result of transient constraints combined with the presence of parametric uncertainty and an unknown nonlinearity. The motivational problem was the state-of-charge (SOC) control strategy for load-following in solid oxide fuel cells (SOFCs) hybridized with an ultracapacitor. In the absence of parametric uncertainty, our prior work established asymptotic stability of the equilibrium if the unknown nonlinearity is a passive memoryless function. In contrast, this paper addresses the realistic scenario with parametric uncertainty. Here, an integral feedback/parameter adaption approach is taken to incorporate robustness. The integral action, which results in a higher-order system, imposes further restriction on the nonlinearity for guaranteeing asymptotic stability. Furthermore, it induces a limit cycle behavior under additional conditions. The system is studied as a Lure problem, which yields a stability criterion. Subsequently, the describing function method yields a necessary condition for half-wave symmetric periodic solution (induced limit cycle).
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影响因子:
--
作者:
Tuhin Das;S. Narayanan;R. Mukherjee
通讯作者:
R. Mukherjee
DOI:
10.1109/pesw.2002.985024
发表时间:
2002
期刊:
2002 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.02CH37309)
影响因子:
--
作者:
K. Sedghisigarchi;A. Feliachi
通讯作者:
A. Feliachi
DOI:
10.1109/acc.2009.5160551
发表时间:
2009
期刊:
2009 American Control Conference
影响因子:
--
作者:
Tuhin Das;R. Weisman
通讯作者:
R. Weisman
DOI:
10.1115/1.4032318
发表时间:
2016
期刊:
and Control
影响因子:
--
作者:
Nowak, William;Geiyer, Daniel;Das, Tuhin
通讯作者:
Das, Tuhin