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• W1488342893 abstract "This paper presents a hybrid technique for harmonic frequency estimation of nonsinusoidal signals of power systems with high order harmonics using central numerical differentiation and digital FIR filter algorithm. A digital low-pass FIR filter is used to obtain the discrete values of the fundamental sinusoidal component, and a set of digital band-pass FIR filter is applied to compute the discrete values of the harmonic component. Using 6 points numerical differentiation, these discrete values are used for fundamental and harmonic frequency estimation. For a signal with 20 harmonics, the technique requires at most 2 cycles (40 ms) for the first time of estimation computation, and requires at most 1 cycle for the latter estimation. Comparing with other existing techniques, the proposed algorithm is characteristic of high accuracy and much less time. With satisfactory results, a study example is given to illustrate the proposed algorithm in Matlab." @default.
• W1488342893 created "2016-06-24" @default.
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• W1488342893 date "2005-04-19" @default.
• W1488342893 modified "2023-09-25" @default.
• W1488342893 title "Harmonic frequency estimation of power systems" @default.
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• W1488342893 doi "https://doi.org/10.1109/psce.2004.1397487" @default.
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