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摘要:
针对一类带有多源异质干扰和输入饱和的随机系统, 研究了其精细抗干扰控制问题. 系统中的多源异质干扰同时包含白噪声,
\begin{document}$H_{2}$\end{document} 范数有界干扰以及外源系统生成的带有状态与干扰耦合的部分信息已知干扰. 针对部分信息已知的干扰, 构建随机干扰观测器对其进行估计. 基于干扰估计, 结合
$H_{\infty}$ 控制方法, 提出基于干扰观测器的精细抗干扰控制策略, 从而实现高精度抗干扰控制. 最后, 仿真结果验证了所提策略的正确性与有效性.
Abstract:The problem of elegant anti-disturbance control are discussed for a class of stochastic systems with multiple heterogeneous disturbances and input saturation. The multiple heterogeneous disturbances simultaneously include white noise,
\begin{document}$H_{2}$\end{document} -norm bounded disturbance and the disturbance with partially-known information which with the coupling of the disturbance and state. To estimate the disturbance with partially-known information, a stochastic disturbance observer (SDO) is constructed. Based on the SDO, a disturbance observer-based elegant anti-disturbance control scheme is proposed by combining disturbance observer based control (DOBC) with
$H_{\infty}$ control, such that higher control accuracy can be achieved. Finally, a simulation example is given to illustrate the effectiveness of the proposed method.
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