Observer-based SMC for stochastic systems with disturbance driven by fractional Brownian motion

Xin Meng, C. Gao, Baoping Jiang, H. Karimi
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引用次数: 1

Abstract

This paper investigates the problem of disturbance-observer-based sliding mode control for stabilization of stochastic systems driven by fractional Brownian motion (fBm). By proposing a novel disturbance observer, an integral-type sliding surface is put forward with the estimated disturbance error confined within a certain value. Meanwhile, by virtue of fractional infinitesimal operator and linear matrix inequality, a sufficient criterion is derived to guarantee the asymptotic stability of obtained sliding mode dynamics. Further, an observer-based sliding mode controller is designed to ensure finite-time reachability of state trajectories onto the predefined sliding surface. Lastly, an illustrative example is utilized to verify the reliability and applicability of the proposed control strategy.
分数阶布朗运动扰动随机系统的基于观测器的SMC
研究了分数阶布朗运动驱动的随机系统的基于扰动观测器的滑模控制问题。通过提出一种新的扰动观测器,提出了一种估计扰动误差在一定范围内的积分型滑动曲面。同时,利用分数无穷小算子和线性矩阵不等式,给出了滑模系统渐近稳定的充分判据。进一步,设计了一种基于观测器的滑模控制器,以确保状态轨迹在有限时间内可到达预定的滑动表面。最后,通过算例验证了所提控制策略的可靠性和适用性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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