García-Veloso, CésarPaolone, MarioMaza-Ortega, José MaríaPaolone, Mario2023-12-062023-12-062023-12-06202410.1109/TIM.2023.3338668https://infoscience.epfl.ch/handle/20.500.14299/202524The paper proposes a synchropahsor estimation (SE) algorithm that leverages the use of a delayed in-quadrature complex signal to mitigate the self-interference of the fundamental tone. The estimator, which uses a three-point IpDFT combined with a three-cycle Hanning window, incorporates a new detection mechanism to iteratively estimate and remove the effects caused by interfering tones within the out-of-band interference (OOBI) range. The main feature of the method is its ability to detect interfering tones with an amplitude lower than that adopted by the IEC/IEEE Std. 60255-118, this detection being notably challenging. Furthermore, it simultaneously satisfies all the accuracy requirements for the P and M phasor measurement unit (PMU) performance classes, while offering a reduction in the total computational cost compared to other state-of-the-art techniques.Phasor measurement unitSynchrophasor estimationEstimationInterference cancellationFiltering algorithmsTransient analysisFrequency estimationIEC/IEEE Std 60255-118-1-2018Quadrature signal generatorDiscrete Fourier transformInterpolated DFTtext::journal::journal article::research article