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Table 1 Contrast of phase measurement outcomes (N = 256)

From: A new measurement algorithm for PMU in power system based on all-phase Fourier transform

 

Real value

Windowed FFT

Double-window apFFT

k = 100

90°

161.7187408919°

89.9999999999°

k = 60

50°

85.8592933936°

50.0000000006°

k = 20

10°

9.9997939384°

10.0000000006°