Complex adaptive notch filters for frequency estimation of three-phase power systems
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Date
2013
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electictrical and Electronics Engineers
Abstract
This paper presents a new technique for adaptive estimation of the frequency of unbalanced three-phase power systems using complex coefficient first-order notch filters. The input complex sinusoid is given by a sum of sequences with positive and negative frequencies. The analytical expression of a estimation error oscillation introduced by the sequence with negative frequency has been derived. Closed form expression for frequency tracking error has been also derived for a complex linear chirp signal. Computer simulation results are presented to validate the analysis.
Description
Abstract. Full Text is available at: https://ieeexplore.ieee.org/abstract/document/6662321/
Keywords
IIR filters, Frequency estimation, Adaptive filters, Filtering algorithms, Band-pass filters, Power systems, Oscillators
Citation
Nishimura, S., Mvuma, A., & Hinamoto, T. (2013). Complex adaptive notch filters for frequency estimation of three-phase power systems. In 2013 European Conference on Circuit Theory and Design (ECCTD) (1-4). IEEE.