Frequency is one of the most important factors for power system harmonic and interharmonic estimation. Accurate spectral analysis relies much on the correct identification of frequencies of the measured signals. In this paper, several commonly used methods for power system stationary and time-varying harmonic and interharmonic estimation are reviewed and compared according to the viewpoint of the frequency identification. It is expected to provide suitable guidelines for the future studies. Frequency is one of the most important factors for
power system harmonic and interharmonic estimation. Accurate
spectral analysis relies much on the correct identification of frequencies
of the measured signals. In this paper, several commonly
used methods for power system stationary and time-varying harmonic
and interharmonic estimation are reviewed and compared
according to the viewpoint of the frequency identification. It is
expected to provide suitable guidelines for the future studies.
