Expert system measures harmonics and EMC

Author

Schlabbach, Juergen

Author_Institution

Fachhochschule Bielefeld, Germany

Volume

7

Issue

3

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

26

Lastpage

29

Abstract

The effects of power system harmonics are becoming more and more important as the number of rectifier controlled motors, discharge lamps, and television equipment grows in industrial and utility power systems.The author describes how a modular expert system for measurement and analysis of power system harmonics and electromagnetic compatibility was developed. The system is capable of sampling up to eight channels (either voltage or current) with a sampling frequency of 30 kHz. The measured and digitized values are stored on a hard disk. Discrete Fourier transformation (DFT) analysis may be carried out online for preliminary evaluation and display of the harmonics. This modular, PC-based system may be applied to a variety of industrial and utility electric system analysis tasks, and also used in education.<>

Keywords

computerised instrumentation; electromagnetic compatibility; expert systems; microcomputer applications; power engineering computing; power system harmonics; power system measurement; 30 kHz; EMC; PC; discharge lamps; discrete Fourier transformation; electromagnetic compatibility; expert system; measurements; power system harmonics; rectifier controlled motors; television equipment; Control systems; Electromagnetic compatibility; Electromagnetic measurements; Expert systems; Harmonic analysis; Lamps; Power system harmonics; Rectifiers; Sampling methods; TV equipment;

fLanguage

English

Journal_Title

Computer Applications in Power, IEEE

Publisher

ieee

ISSN

0895-0156

Type

jour

DOI

10.1109/67.294166

Filename

294166