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Decentralized state estimation of power system is under investigation for the monitoring of modern power system. In this framework, the identification of sensor failure is a critical issue. In this work, a novel method is proposed to achieve this goal, yielding improved reliability of the decentralized power system monitoring. Sensor measurements are validated locally, before they are elaborated....
The reliability of the power system state estimation depends on the availability of the measurements, which may be affected by hardware faults, especially sensor failures. In this work the authors present a novel fault-tolerant decentralized state estimator based on the polynomial chaos theory (PCT). This estimator has been developed to detect, diagnose, and isolate failed sensors. The sensor measurements...
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