Set theoretic approach to fault-tolerant control of linear parameter-varying systems with sensor reintegration. (English) Zbl 1416.93057
Summary: In this paper, we present a fault-tolerant control scheme for linear parameter-varying systems that utilises multiple sensor switching to compensate for sensor faults. The closed-loop scheme consists of an estimator-based feedback tracking controller and sensor-estimate switching strategy which allows for the reintegration of previously faulty sensors. The switching mechanism tracks the transitions from faulty to healthy behaviour by means of set separation and pre-computed transition times. The sensor-estimate pairings are then reconfigured based on available healthy sensors. Under the proposed scheme, preservation of closed-loop system boundedness is guaranteed for a wide range of sensor fault situations. An example is presented to illustrate the performance of the fault-tolerant control strategy.
MSC:
| 93B35 | Sensitivity (robustness) |
| 93D09 | Robust stability |
| 93C41 | Control/observation systems with incomplete information |
| 93B52 | Feedback control |
| 93C05 | Linear systems in control theory |
Keywords:
invariant sets; sensor-estimator switching; fault-tolerant control; sensor recovery; linear parameter-varying systemsReferences:
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