Robust control of systems with sector nonlinearities via convex optimization: A data-driven approach

In this paper, a new data-driven method for designing robust controllers is proposed for systemswith sector-bounded nonlinearities and multimodel uncertainties. The results from the circle criterion are used to generate necessary and sufficient convex constraints that guarantee the stability of the closed-loop system. The main feature of the proposed approach is that only the frequency response data of the linear part of the system is used for guaranteeing the stability of the closed-loop nonlinear system. Additionally, a convex optimization problem is formulated to ensure H-infinity performance with respect to the fundamental component of a sector-bounded nonlinearity. The case study illustrates how the proposed method can be used to control uncertain systems that are subject to sector-bounded nonlinearities.


Publié dans:
International Journal Of Robust And Nonlinear Control, 29, 5, 1361-1376
Année
Mar 25 2019
Publisher:
Hoboken, WILEY
ISSN:
1049-8923
1099-1239
Mots-clefs:
Laboratoires:




 Notice créée le 2019-03-08, modifiée le 2019-06-19


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