Constrained Uncertain System Stabilization with Enlargement of Invariant Sets
Joint Authors
Hamdi, Walid
Bey, Wissal
Benhadj Braiek, Naceur
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-08-10
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
An enhanced method able to perform accurate stability of constrained uncertain systems is presented.
The main objective of this method is to compute a sequence of feedback control laws which stabilizes the closed-loop system.
The proposed approach is based on robust model predictive control (RMPC) and enhanced maximized sets algorithm (EMSA), which are applied to improve the performance of the closed-loop system and achieve less conservative results.
In fact, the proposed approach is split into two parts.
The first is a method of enhanced maximized ellipsoidal invariant sets (EMES) based on a semidefinite programming problem.
The second is an enhanced maximized polyhedral set (EMPS) which consists of appending new vertices to their convex hull to minimize the distance between each new vertex and the polyhedral set vertices to ensure state constraints.
Simulation results on two examples, an uncertain nonisothermal CSTR and an angular positioning system, demonstrate the effectiveness of the proposed methodology when compared to other works related to a similar subject.
According to the performance evaluation, we recorded higher feedback gain provided by smallest maximized invariant sets compared to recently studied methods, which shows the best region of stability.
Therefore, the proposed algorithm can achieve less conservative results.
American Psychological Association (APA)
Hamdi, Walid& Bey, Wissal& Benhadj Braiek, Naceur. 2020. Constrained Uncertain System Stabilization with Enlargement of Invariant Sets. Complexity،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1139908
Modern Language Association (MLA)
Hamdi, Walid…[et al.]. Constrained Uncertain System Stabilization with Enlargement of Invariant Sets. Complexity No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1139908
American Medical Association (AMA)
Hamdi, Walid& Bey, Wissal& Benhadj Braiek, Naceur. Constrained Uncertain System Stabilization with Enlargement of Invariant Sets. Complexity. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1139908
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1139908