SOGI Interpolated DFT Variant for P and M class Compliance with a two Nominal Period Window

Garcia-Veloso, CesarPaolone, MarioMaza-Ortega, Jose Maria2024-07-232024-07-232024-07-232024-06-2810.1109/SGSMA58694.2024.105714582-s2.0-85198226342https://infoscience.epfl.ch/handle/20.500.14299/240418An alternative formulation of the second-order generalized integrator (SOGI) IpDFT algorithm is presented to simultaneously comply with both the P and M phasor measurement unit (PMU) performance classes while reducing the observation window from three to two nominal periods. The SOGI filter, which attenuates the self-interference of the fundamental tone, is combined with a three-point IpDFT and a two-cycle Hanning window. Its performance, with respect to all the operating conditions defined by the IEC/IEEE Std. 60255-118, is evaluated and compared with the already proposed three-cycle implementation. Compliance with all standard requirements is verified in a simulated environment.enfalsediscrete Fourier transformIEC/IEEE Std 60255-118-1-2018interpolated DFTphasor measurement unitsecond-order generalized integratorsynchrophasor estimationSOGI Interpolated DFT Variant for P and M class Compliance with a two Nominal Period Windowtext::conference output::conference proceedings::conference paper