Abstract
ABSTRACT In this paper, the elegant anti-disturbance saturation control problem is discussed for a class of stochastic systems with multiple heterogeneous disturbances, which include three kinds of disturbance. One is the disturbance with partially known information. The other one is satisfying -norm bounded. And the third one is white noise. A stochastic disturbance observer (SDO) is constructed to estimate the disturbance with partially known information. Based on the SDO and the characteristics of other two kinds of disturbance, a disturbance observer-based elegant anti-disturbance saturation control (DOBEADSC) scheme is proposed by combining disturbance observer based saturation control (DOBSC) and control. With the proposed DOBEADSC scheme, the desired system robustness performance and higher anti-disturbance control accuracy can be achieved. Finally, two simulation examples, including a wind turbine system, are given to demonstrate the feasibility and effectiveness of the proposed scheme.
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