Simultaneous state and fault estimation for Takagi-Sugeno implicit models with Lipschitz constraints
This paper presents a state and fault observer design for a class of Takagi-Sugeno implicit models (TSIMs) with unmeasurable premise variables satisfying the Lipschitz constraints. The fault variable is constituted by the actuator and sensor faults. The actuator fault affects the state and the senso...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Balikesir University
2021-01-01
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| Series: | An International Journal of Optimization and Control: Theories & Applications |
| Subjects: | |
| Online Access: | http://www.ijocta.org/index.php/files/article/view/877 |
| _version_ | 1797913474925330432 |
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| author | Manal Ouzaz Abdellatif El Assoudi jalal soulami El Hassane El Yaagoubi |
| author_facet | Manal Ouzaz Abdellatif El Assoudi jalal soulami El Hassane El Yaagoubi |
| author_sort | Manal Ouzaz |
| collection | DOAJ |
| description | This paper presents a state and fault observer design for a class of Takagi-Sugeno implicit models (TSIMs) with unmeasurable premise variables satisfying the Lipschitz constraints. The fault variable is constituted by the actuator and sensor faults. The actuator fault affects the state and the sensor fault affects the output of the system. The approach is based on the separation between dynamic and static relations in the TSIM. Firstly, the method begins by decomposing the dynamic equations of the algebraic equations. Secondly, the fuzzy observer design that satisfies the Lipschitz conditions and permits to estimate simultaneously the unknown states, actuator and sensor faults is developed. The aim of this approach for the observer design is to construct an augmented model where the fault variable is added to the state vector. The exponential convergence of the state estimation error is studied by using the Lyapunov theory and the stability condition is given in term of only one linear matrix inequality (LMI). Finally, numerical simulation results are given to highlight the performances of the proposed method by using a TSIM of a single-link flexible joint robot. |
| first_indexed | 2024-04-10T12:12:12Z |
| format | Article |
| id | doaj.art-486b0e098c7b46cbad7e37df9731a177 |
| institution | Directory Open Access Journal |
| issn | 2146-0957 2146-5703 |
| language | English |
| last_indexed | 2024-04-10T12:12:12Z |
| publishDate | 2021-01-01 |
| publisher | Balikesir University |
| record_format | Article |
| series | An International Journal of Optimization and Control: Theories & Applications |
| spelling | doaj.art-486b0e098c7b46cbad7e37df9731a1772023-02-15T16:15:56ZengBalikesir UniversityAn International Journal of Optimization and Control: Theories & Applications2146-09572146-57032021-01-0111110.11121/ijocta.01.2021.00877Simultaneous state and fault estimation for Takagi-Sugeno implicit models with Lipschitz constraintsManal Ouzaz0Abdellatif El Assoudi1jalal soulami2El Hassane El Yaagoubi3Department of Electrical Engineering, ENSEMHassan II University of Casablanca, Casablanca MoroccoDepartment of Electrical Engineering, ENSEMHassan II University of Casablanca, Casablanca MoroccoDepartment of Electrical Engineering, ENSEMHassan II University of Casablanca, Casablanca MoroccoDepartment of Electrical Engineering, ENSEMHassan II University of Casablanca, Casablanca MoroccoThis paper presents a state and fault observer design for a class of Takagi-Sugeno implicit models (TSIMs) with unmeasurable premise variables satisfying the Lipschitz constraints. The fault variable is constituted by the actuator and sensor faults. The actuator fault affects the state and the sensor fault affects the output of the system. The approach is based on the separation between dynamic and static relations in the TSIM. Firstly, the method begins by decomposing the dynamic equations of the algebraic equations. Secondly, the fuzzy observer design that satisfies the Lipschitz conditions and permits to estimate simultaneously the unknown states, actuator and sensor faults is developed. The aim of this approach for the observer design is to construct an augmented model where the fault variable is added to the state vector. The exponential convergence of the state estimation error is studied by using the Lyapunov theory and the stability condition is given in term of only one linear matrix inequality (LMI). Finally, numerical simulation results are given to highlight the performances of the proposed method by using a TSIM of a single-link flexible joint robot.http://www.ijocta.org/index.php/files/article/view/877Takagi-Sugeno implicit modelestimation of actuator and sensor faultsfuzzy Observer designLyapunov methodLMI techniqueLipschitz constraints |
| spellingShingle | Manal Ouzaz Abdellatif El Assoudi jalal soulami El Hassane El Yaagoubi Simultaneous state and fault estimation for Takagi-Sugeno implicit models with Lipschitz constraints An International Journal of Optimization and Control: Theories & Applications Takagi-Sugeno implicit model estimation of actuator and sensor faults fuzzy Observer design Lyapunov method LMI technique Lipschitz constraints |
| title | Simultaneous state and fault estimation for Takagi-Sugeno implicit models with Lipschitz constraints |
| title_full | Simultaneous state and fault estimation for Takagi-Sugeno implicit models with Lipschitz constraints |
| title_fullStr | Simultaneous state and fault estimation for Takagi-Sugeno implicit models with Lipschitz constraints |
| title_full_unstemmed | Simultaneous state and fault estimation for Takagi-Sugeno implicit models with Lipschitz constraints |
| title_short | Simultaneous state and fault estimation for Takagi-Sugeno implicit models with Lipschitz constraints |
| title_sort | simultaneous state and fault estimation for takagi sugeno implicit models with lipschitz constraints |
| topic | Takagi-Sugeno implicit model estimation of actuator and sensor faults fuzzy Observer design Lyapunov method LMI technique Lipschitz constraints |
| url | http://www.ijocta.org/index.php/files/article/view/877 |
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