Fault Tolerant Control of a Three Tank Benchmark Using Weighted Predictive Control

  • L. F. Mendonça
  • J. M. C. Sousa
  • J. M. G. Sá da Costa
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4529)

Abstract

This paper proposes the application of fault-tolerant control (FTC) using weighted fuzzy predictive control. The FTC approach is based on two steps, fault detection and isolation (FDI) and fault accommodation. Fault detection is performed by a model-based approach using fuzzy modeling. Fault isolation uses a fuzzy decision making approach. The model of the isolated fault is used in fault accommodation with a model predictive control (MPC) scheme. This paper uses a weighted fuzzy predictive control scheme, where fuzzy goals and fuzzy constraints are described in a fuzzy objective function. The criteria (goals or constraints) have an associated weight factor, which are chosen by the decision-maker. Two faults were simulated in a three tank benchmark and the respective fuzzy models were identified. The fuzzy FTC scheme proposed in this paper was able to accommodate the simulated faults.

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Copyright information

© Springer Berlin Heidelberg 2007

Authors and Affiliations

  • L. F. Mendonça
    • 1
    • 2
  • J. M. C. Sousa
    • 1
  • J. M. G. Sá da Costa
    • 1
  1. 1.Center of Intelligent Systems/IDMEC, Instituto Superior Técnico, Technical University of Lisbon, Av. Rovisco Pais, 1049-001 LisbonPortugal
  2. 2.Escola Náutica Infante D. Henrique, Dept. of Marine Engineering, Av. Eng. Bonneville Franco, LisbonPortugal

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