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- W2891290161 abstract "An improved adaptive technique is proposed to estimate the frequencies, thereby decomposing the nonstationary signal for the analysis of time-varying disturbances. The proposed method is based on the successive application of FFT and followed by the adaptive filter design. The FFT based frequency estimation has been performed based on divide to conquer principle for accurate estimation of harmonics and inter-harmonics. The estimated frequencies are processed and the empirical wavelet filters are designed accordingly for extracting the mono-frequency components. Thereafter, the instantaneous frequency and amplitude of each component have been estimated by applying Hilbert transform. The effectiveness of the proposed method has been verified by testing it on various simulated as well as measured power quality signals containing harmonics, inter-harmonics, fundamental frequency deviation, transients, sag and swell. The results confirm that the proposed method is able to analyse the time-varying power quality signals accurately and rapidly, making it suitable for real-time monitoring." @default.
- W2891290161 created "2018-09-27" @default.
- W2891290161 creator A5007468343 @default.
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- W2891290161 date "2019-01-01" @default.
- W2891290161 modified "2023-09-22" @default.
- W2891290161 title "An improved adaptive filtering approach for power quality analysis of time-varying waveforms" @default.
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- W2891290161 doi "https://doi.org/10.1016/j.measurement.2018.08.073" @default.
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