On the robustness analysis of triangular nonlinear systems: iISS and practical stability

Chaillet, Antoine; Lorı́a, Antonio

doi:10.1109/ssd.2009.4956704

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2022

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“…However, the filters are applied for the three measurement outputs only when considering measurement noise. As the filter introduces a phase shift, only a practical stability [35][36][37] can be expected. Unfortunately, the fault cannot be detected without a filter, when the noise is not negligible.…”

Section: Hosm Differentiatormentioning

confidence: 99%

Active fault‐tolerant control based on sparse recovery diagnosis: The twin wind turbines case

Makni

Haidar

Barbot

et al. 2022

Intl J Robust & Nonlinear

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This article deals with the design of an active fault‐tolerant control (AFTC) for a twin wind turbine consisting of two wind turbines mounted on the same tower. When one of the turbines is impacted by electrical faults, precisely a stator inter‐turn short circuits fault or a demagnetization fault, the sparse recovery diagnosis method is used for the detection, isolation and estimation of the active fault. An AFTC law is designed for the supervision of the faulty machine. Both methods, concerning diagnosis and control, are based on homogeneous theory and consequently converge in finite time. Simulation results highlighting the relevance of the proposed approach are also presented.

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Section: Hosm Differentiatormentioning

confidence: 99%