Integral-Based Event-Triggered Fault Estimation and Accommodation for Aeroengine Sensor.

IEEE Trans. Instrum. Meas.(2023)

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Abstract
This article investigates the integral-based event-triggered sensor fault estimation and fault accommodation for aeroengine. First, a new observer is constructed to estimate the fault signal for aeroengine subject to external disturbance. Then a co-design scheme of event-triggered parameters and fault-tolerant controller (FTC) is proposed to alleviate the communication burden and guarantee the required performance of the considered system. Compared with existing sensor fault estimation methods, the proposed method can not only avoid the transformation to the actuator fault form in the design stage of the networked control system (NCS) with transmission delay, but also saves the communication resources of the network. Finally, the effectiveness of the proposed method is validated by hardware-in-the-loop (HIL) test, which reflects its application value in a propulsion system.
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Key words
Circuit faults, Aircraft propulsion, Estimation, Control systems, Noise measurement, Actuators, Measurement uncertainty, Aeroengine sensor, fault estimation, fault-tolerant control (FTC), hardware in-the-loop (HIL) test, integral-based event trigger
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