Measurement of voltage and current harmonics for frequencies up to 9 kHz according to IEC61000-4-7

Author

Bilik, Petr

Author_Institution

Dept. of Electr. Meas., VSB Tech. Univ. Ostrava, Ostrava, Czech Republic

fYear

2009

fDate

15-17 Sept. 2009

Firstpage

1

Lastpage

5

Abstract

The number of distributed energy sources (DER), the huge increase of loads with switching supplies and the massive use of compact saving lamps brings the need to measure and evaluate voltage and current up to 9 kHz. Annex B of the latest update of the IEC 61000-4-7:2002/A1:2008 unifies the length of the basic time window for the evaluation of signal components up to 2 kHz and for the evaluation of signal components in the range of 2 kHz-9 kHz. This fact, together with latest measurement technologies, allows the simultaneous evaluation of signal components in the entire range of 50 Hz-9 kHz, even for very small amplitudes of frequency components. This paper analyzes and describes the technical problems to be solved in order to meet the requirements of IEC 61000-4-7:2002/A1:2008. The paper presents the results of measurements performed on different loads with expected significant signal components in the frequency range of 2 kHz-9 kHz, such as PC power supply. Compatible levels for frequency components in the range of 2-9 kHz are discussed.

Keywords

IEC standards; distortion measurement; electric current measurement; power supply quality; voltage measurement; IEC61000-4-7; current harmonics measurement; distributed energy sources; frequency 2 kHz to 9 kHz; power quality; signal component evaluation; voltage harmonics measurement; Current measurement; Density estimation robust algorithm; Energy measurement; Frequency measurement; IEC standards; Lamps; Performance evaluation; Power measurement; Power supplies; Voltage measurement; IEC 61000-4-7:2002/A1:2008; LabVIEW; current harmonics up to 9kHz; distributed energy sources; harmonic components up to 9kHz; power quality; voltage harmonics up to 9kHz;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Power Quality and Utilisation, 2009. EPQU 2009. 10th International Conference on

Conference_Location

Lodz

ISSN

2150-6655

Print_ISBN

978-1-4244-5171-5

Electronic_ISBN

2150-6655

Type

conf

DOI

10.1109/EPQU.2009.5318832

Filename

5318832