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- W2785498972 abstract "Distribution-level signals are often contaminated with harmonics and noise, along with dynamic conditions like frequency deviations. This paper proposes an empirical wavelet transform (EWT) based M-class distribution-level phasor estimation technique under such polluted and dynamic conditions. The capability of the EWT of extracting different frequency components present in the signal makes it suitable for distribution-level phasor estimation. However, the empirical wavelet filters are designed on the basis of the Fourier spectrum of the signal, which, inturn suffers from a spectral leakage problem at off-nominal frequencies. To avoid the errors arising due to spectral leakage, a sample value adjustment based prefiltering technique is employed. The effectiveness of the proposed estimator is demonstrated on various simulated signals, field-data, and real-time signals obtained from the hardware implementation setup. The proposed algorithm is found to be least affected by the presence of dc components, harmonics, and noise. The use of a fixed window size and fixed sampling frequency makes it suitable for synchronization with GPS clocks. The proposed scheme is also able to provide an accurate harmonic phasor estimation." @default.
- W2785498972 created "2018-02-23" @default.
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- W2785498972 date "2018-10-01" @default.
- W2785498972 modified "2023-10-03" @default.
- W2785498972 title "A Novel Distribution-Level Phasor Estimation Algorithm Using Empirical Wavelet Transform" @default.
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- W2785498972 doi "https://doi.org/10.1109/tie.2018.2801837" @default.
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