Estimation of the Component Parameters for the Evaluation of the Power Quality Disturbances in the Frequency Domain

Author

Agrez, Dusan

Author_Institution

Fac. of Electr. Eng., Univ. of Ljubljana, Ljubljana

fYear

2008

fDate

12-15 May 2008

Firstpage

1548

Lastpage

1553

Abstract

Simple algorithms for fast measurement and estimation of the unknown changing frequency, amplitude, phase, and other parameters for evaluation of the power quality disturbances are presented. Parameters are calculated from the DFT coefficients. The optimum for reducing the time of measurement (three periods of the fundamental component) and reducing the influences of the harmonic components can be the estimation with the three-point interpolation and the Hanning window.

Keywords

discrete Fourier transforms; frequency-domain analysis; harmonic distortion; interpolation; power supply quality; power system harmonics; power system parameter estimation; DFT coefficients; Hanning window; amplitude parameters; frequency domain; frequency parameters; harmonic components estimation; harmonic distortion; parameters estimation; phase parameters; power quality disturbances evaluation; three-point interpolation; Amplitude estimation; Frequency domain analysis; Frequency estimation; Frequency measurement; Interpolation; Phase estimation; Phase measurement; Power measurement; Power quality; Time measurement; amplitude; estimation in the frequency domain; frequency; harmonic distortion; phase; power quality disturbances;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference Proceedings, 2008. IMTC 2008. IEEE

Conference_Location

Victoria, BC

ISSN

1091-5281

Print_ISBN

978-1-4244-1540-3

Electronic_ISBN

1091-5281

Type

conf

DOI

10.1109/IMTC.2008.4547289

Filename

4547289