Fault-Tolerant Control for Three-Tank System in Case of Sensor Faults | Zendy

Mondher Amor | Zendy; Taoufik Ladhari | Zendy; Salim Hadj Saïd | Zendy; Faouzi M’Sahli | Zendy

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Fault-Tolerant Control for Three-Tank System in Case of Sensor Faults

Author(s) -

Mondher Amor,

Taoufik Ladhari,

Salim Hadj Saïd,

Faouzi M’Sahli

Publication year - 2021

Publication title -

mathematical problems in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.262

H-Index - 62

eISSN - 1026-7077

pISSN - 1024-123X

DOI - 10.1155/2021/8856571

Subject(s) - control reconfiguration , benchmark (surveying) , block (permutation group theory) , fault (geology) , fault detection and isolation , control theory (sociology) , engineering , controller (irrigation) , state (computer science) , fault tolerance , control (management) , control engineering , computer science , mathematics , actuator , embedded system , algorithm , reliability engineering , artificial intelligence , agronomy , geometry , electrical engineering , geodesy , seismology , geology , biology , geography

This research paper would be devoted to the application of a fault-tolerant control (FTC) for a benchmark system composed of three interconnected tanks in case of sensor faults. The control scheme includes two blocks: fault detection and isolation (FDI) block and a control law reconfiguration block. The strategy of the FDI method is based on a bank of high gain observers; each of them is constructed to estimate the system state vector. Thus, the diagnostic signal-residuals are generated by the comparison of measured and estimated outputs and the faulty sensor is isolated. The reconfiguration block performs an update of the controller parameters according to the operating mode. The application of this method to a pilot plant demonstrates that the hydrographic system maintains quite performances after sensor faults occurrence.

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