Design of sliding-mode observer for a class of uncertain neutral stochastic systems

Design of sliding-mode observer for a class of uncertain neutral stochastic systems
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一类不确定中性随机系统滑模观测器设计

DOI:
10.1080/00207721.2016.1258597
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发表时间:
2017-05
影响因子:
4.3
通讯作者:
Gao Cunchen
Gao Cunchen
中科院分区:
计算机科学4区
文献类型:
--
作者:
Liu Zhen;Zhao Lin;Zhu Quanmin;Gao Cunchen

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摘要利用滑模观测器技术研究了一类不确定中立型随机系统的鲁棒控制问题。本文提出了一种新的观测器和积分型滑模面设计,在此基础上,一个新的充分条件,保证所得到的滑模动力学(SMD)是均方指数稳定的规定的性能水平。然后,设计了一个自适应趋近运动控制器,使系统在有限时间内几乎必然地到达预先设计的滑动面。最后通过两个算例验证了该方法的有效性和优越性。
ABSTRACT The problem of robust control for a class of uncertain neutral stochastic systems (NSS) is investigated by utilising the sliding-mode observer (SMO) technique. This paper presents a novel observer and integral-type sliding-surface design, based on which a new sufficient condition guaranteeing the resultant sliding-mode dynamics (SMDs) to be mean-square exponentially stable with a prescribed level of performance is derived. Then, an adaptive reaching motion controller is synthesised to lead the system to the predesigned sliding surface in finite-time almost surely. Finally, two illustrative examples are exhibited to verify the validity and superiority of the developed scheme.
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