A power system digital harmonic analyzer

Author

Mortensen, A. Norman ; Johnson, Gary L.

Author_Institution

Kansas State Univ., Manhattan, KS, USA

Volume

37

Issue

4

fYear

1988

fDate

12/1/1988 12:00:00 AM

Firstpage

537

Lastpage

540

Abstract

The authors describe the design of a harmonic analyzer for use in studying the harmonic content of commercial electric power. This MC 68000-based instrument samples the waveform and calculates the first 63 harmonics of the 60-Hz fundamental for both a voltage and current waveform. The 64-kbyte memory is adequate for one week of hourly samples for a power-quality survey by an electrical utility. The analyzer is quickly attached to the outputs of potential and current transformers by alligator clips and a current plug. The harmonic data are retrieved from the instrument by a portable computer. A separate personal computer (PC) program is then used for data analysis. Accuracy is shown to be about 0.1%, more than adequate for power quality surveys

Keywords

computerised instrumentation; data analysis; digital instrumentation; electric current measurement; harmonic analysis; microcomputer applications; power engineering computing; power measurement; voltage measurement; 60 Hz; 64 kBytes; MC 68000-based instrument; current waveform; data analysis; digital harmonic analyzer; harmonic data; personal computer; portable computer; power quality surveys; voltage waveform; Current transformers; Harmonic analysis; Industrial power systems; Information retrieval; Instruments; Plugs; Power quality; Power system analysis computing; Power system harmonics; Voltage transformers;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.9808

Filename

9808