Low-pass filters in harmonic detection based on the instantaneous reactive power theory

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Journal of Beijing University of Chemical Technology ›› 2009, Vol. 36 ›› Issue (5) : 103-106.

机电工程和信息科学

WANG GaiYing;CUI YuLong

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A theoretical range of cut-off frequency of low-pass filters in an i_p, i_qharmonic current calculation model based on instantaneous reactive power theory in active power filters (APF) is given. A harmonic detection model was established in MATLAB. Simulations were carried out focusing on the impact of low-pass filters on the accuracy and speed of harmonic detection. The choice of a cut-off frequency of 25?Hz and third-order low-pass filters was validated.

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WANG GaiYing;CUI YuLong. Low-pass filters in harmonic detection based on the instantaneous reactive power theory [J]. Journal of Beijing University of Chemical Technology, 2009, 36(5): 103-106

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Received	Revised	Published
2008-10-09	1900-01-01	2009-09-20
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2009-09-20

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