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7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014)
In this paper a new detection and isolation technique for encoder faults is presented for doubly-fed induction generators. This method compares the measured rotor position with an estimation from a new MRAS observer based on the computation of both active and reactive power transferred via the air gap. The difference between measured and estimated position is monitored by a CUSUM algorithm, while a second observer, based on an internal state-space model, detects anomalous changes in thedoi:10.1049/cp.2014.0363 fatcat:rxtatd25e5hd3cdf6xil2x7z4i