A wavelet-based method of measuring fluctuating harmonics for determining the filter time constant of IEC standard harmonic analyzers

Author

Clarkson, Paul ; Wright, Paul S.

Author_Institution

Div. of Enabling Metrol., Nat. Phys. Lab., Teddington, UK

Volume

54

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

488

Lastpage

491

Abstract

Harmonic analyzers are used to test the fluctuating harmonic emissions of electrical appliances to international regulations. This paper describes a wavelet-based method of measuring level-changing harmonics (bursts) for use in the calibration of these analyzers. The method is shown to be reliable for measuring various mixtures of harmonics. The importance of calibrating harmonic analyzers under conditions of fluctuating harmonics is discussed.

Keywords

IEC standards; calibration; domestic appliances; electric variables measurement; harmonic analysis; measurement standards; wavelet transforms; IEC standard; electric variables measurement; electrical appliances; electromagnetic compatibility; filter time constant; fluctuating harmonic emissions; fluctuating harmonics measurement; harmonic analysis; harmonic analyzers; international regulations; signal analysis; wavelet transforms; wavelet-based method; Calibration; Discrete Fourier transforms; Electrical products; Electromagnetic compatibility; Harmonic analysis; IEC standards; Power harmonic filters; Testing; Time measurement; Wavelet analysis; Calibration; electric variables measurement; electromagnetic compatibility (EMC); harmonic analysis; signal analysis; wavelet transforms;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2004.843327

Filename

1408216