arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2303.04296math.OC
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不确定随机非线性系统的事件触发自抗扰控制

Event-Triggered Active Disturbance Rejection Control for Uncertain Random Nonlinear Systems

Ze-Hao Wu, Feiqi Deng, Pengyu Zeng, Hua-Cheng Zhou, Hongyi Li

AI总结:

针对受有界噪声与有色噪声驱动的不确定随机非线性系统,提出带正执行间隔下界的事件触发 ESO 与 ADRC,实现总扰动实时估计补偿,并证明闭环均方及几乎必然实用收敛。

摘要:

本文首次研究了一类由有界噪声和有色噪声驱动的不确定随机非线性系统的事件触发自抗扰控制(ADRC)。设计了事件触发扩张状态观测器(ESO)和 ADRC 控制器,并提出两种相应的事件触发机制,其执行间隔均具有固定的正下界。代表非线性未建模动态、外部确定性扰动、有界噪声和有色噪声耦合的随机总扰动,由事件触发 ESO 实时估计,并在事件触发反馈回路中得到补偿。通过严格的理论分析,证明了闭环系统的均方实用收敛性和几乎必然实用收敛性。最后,通过若干数值仿真验证了所提出的控制方案和理论结果。

英文摘要:

In this paper, event-triggered active disturbance rejection control (ADRC) is first addressed for a class of uncertain random nonlinear systems driven by bounded noise and colored noise. The event-triggered extended state observer (ESO) and ADRC controller are designed, where two respective event-triggering mechanisms with a fixed positive lower bound for the inter-execution times are proposed. The random total disturbance representing the coupling of nonlinear unmodeled dynamics, external deterministic disturbance, bounded noise, and colored noise is estimated in real time by the event-triggered ESO and compensated in the event-triggered feedback loop. Both the mean square and almost surely practical convergence of the closed-loop systems is shown with rigorous theoretical analysis. Finally, some numerical simulations are implemented to validate the proposed control scheme and theoretical results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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