Decentralised output-feedback control for a class of large-scale stochastic high-order upper-triangular nonlinear systems

Liang Liu and Yifan Zhang

International Journal of Systems Science, 2017, vol. 48, issue 4, 838-848

Abstract: Under the weaker conditions on the drift and diffusion terms, this paper focuses on the global decentralised output-feedback control for a class of large-scale stochastic high-order upper-triangular nonlinear systems. By introducing an appropriate coordinate transformation, the original system is transformed into an equivalent one with tunable gain. After that, by reasonably combing the homogeneous domination approach with stochastic nonlinear systems stability criterion, and skillfully choosing the low gain scale, the decentralised output-feedback controller is constructed for each subsystem to ensure that the closed-loop system is globally asymptotically stable in probability. The simulation example is given to demonstrate the effectiveness of the proposed design scheme.

Date: 2017
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DOI: 10.1080/00207721.2016.1216202

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