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SUMMARY:ECE PhD Proposal Review: Anahita Moradmand
DESCRIPTION:PhD Proposal Review: Robust Observer Structures and Control Design for Linear and Nonlinear Dynamical Systems with Applications \nAnahita Moradmand \nLocation: Zoom Link \nAbstract: This thesis focuses on special class of observers and controllers for different and seperable nonlinear systems. In the first step\, a robust fault detection approach using observers for linear systems is proposed where we combine the unknown inout observer UIO and an extended proportional integral observer PIO\, which has a fading term for robust fault detection. The integrated observer is called proportional integral fading unknown input observer (PIFUIO).\nFurthermore\, we extend our result to nonlinear systems with special structures as the design of nonlinear observer had limitation for general types of nonlinear systems. In the second step\, analysis and design of positive systems is considered whereby positive stabilization and the design of positive unknown input observer (PUIO) are introduced. Also\, the robust stability analysis of this class of systems is studied in which the robust stability is formulated in terms of LMI. the class of separable positive nonlinear systems is also analyzed and the design of observer and controller are provided. Finally\, we extend our desgin from Lipschitz type nonlinearity to state-dependent type by focusing on interconnected systems where we propose a distributed control architecture to take advantage of the global performance similar to centralized control and leverage the benefits of decentralized control.
URL:https://coe.northeastern.edu/event/ece-phd-proposal-review-anahita-moradmand/
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