Simple method of selective harmonic tracking (SHT) of signals in an integrated AC-DC power system

Author

Narendra, K.G. ; Chandrasekharaiah, H.S.

Author_Institution

Dept. of High Voltage Eng., Indian Inst. of Sci., Bangalore, India

Volume

140

Issue

5

fYear

1993

fDate

9/1/1993 12:00:00 AM

Firstpage

399

Lastpage

403

Abstract

The authors present a simple method of finding the harmonic coefficient of a trigonometric Fourier series representation for signals which are defined over a finite range. This method can be used selectively to track any harmonic component or range of harmonic components of the signal. A matrix method has been developed which uses the least square (LSQ) criterion to approximate the given signal with that of the assumed Fourier series representation. The method can be used, in general, as a signal processing tool. For the purpose of illustration, a digital computer program is developed for selective harmonic tracking (SHT) of waveforms generated in multiple pulse converter systems connected to an HV AC system

Keywords

digital simulation; fast Fourier transforms; least squares approximations; power convertors; power system analysis computing; power system harmonics; power system interconnection; signal processing; Fourier series; digital computer program; fast Fourier transform; harmonic coefficient; integrated AC-DC power system; least square criterion; matrix method; multiple pulse converter systems; selective harmonic tracking; signal processing tool; trigonometric Fourier series representation;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings C

Publisher

iet

ISSN

0143-7046

Type

jour

Filename

237907