Publication detail

A time domain based flickermeter with response to a voltage variation caused by high frequency interharmonics

DRÁPELA, J.

Original Title

A time domain based flickermeter with response to a voltage variation caused by high frequency interharmonics

Type

conference paper

Language

English

Original Abstract

One of the major problems in power quality is a volt-age fluctuation that causes fluctuation of luminous flux of light sources and the disturbing light flicker can occur consequently. Fluctuation of supply voltage is primary viewed, for historical reason, as voltage amplitude modulation (AM) and the response of UIE/IEC flickermeter, which is based on incandescent bulb - human eye - brain scheme, is designed exactly for such fluctuation. From another point of view, a voltage magnitude fluctuation could be introduced also by subharmonic and/or interharmonic components superimposed on a voltage waveform. The boundary interharmonic frequency of a voltage AM is approx. double of fundamental system frequency (f1) and for this reason the response of the standard UIE/IEC flickermeter to interhar-monic voltages is also up to 2* f1. Nevertheless, high frequency voltage interharmonics (over 100 Hz) are likewise able to produce light flicker. That is valid for all lamps, except incandescent. And the instrument is expected to properly work and measure also the effects of these interharmonics. The paper discusses the realization of flickermeter in time domain for frequency range up to 3 kHz in Matlab-Simulink environment. The used modifications are based on the analysis of voltage fluctuation caused by integer and non-integer harmonics in range of DC to 3 kHz, on utilization of the measured interharmonic-flicker curves of lamps, and are performed in the block 1 to block 4 of the standard flickermeter scheme.

Keywords

Interharmonics, Voltage fluctuation, Flickermeter, Matlab Simulink

Key words in English

Interharmonics, Voltage fluctuation, Flickermeter, Matlab Simulink

Authors

DRÁPELA, J.

RIV year

2008

Released

13. 5. 2008

Publisher

Brno University of Technology, FEEC, Department of Electrical Power Engineering

Location

Brno, Czech Republic

ISBN

978-80-214-3650-3

Book

Proceedings ot the 9th International Scientific Conference Electric Power Engineering 2008

Edition

1

Edition number

1

Pages from

139

Pages to

148

Pages count

10

BibTex

@inproceedings{BUT26578,
  author="Jiří {Drápela}",
  title="A time domain based flickermeter with response to a voltage variation caused by high frequency interharmonics",
  booktitle="Proceedings ot the 9th International Scientific Conference Electric Power Engineering 2008",
  year="2008",
  series="1",
  number="1",
  pages="139--148",
  publisher="Brno University of Technology, FEEC, Department of Electrical Power Engineering",
  address="Brno, Czech Republic",
  isbn="978-80-214-3650-3"
}