Measurement and research of channel noise distributed characterization in low voltage networks

Xiaoxian Yang, Tao Zheng, Baohui Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

In this paper, measurement and research of noise characterizations in three-phase four-wire low voltage power network channels are carried out. The power networks have overhead conductor structures. Measurement frequency is from 1kHz to 1MHz. The studies include noise classification and load characterizations, noise distribution characterization along the power lines and noise distribution characterization when coupling across different phases. The measurements of noise distribution characterizations are carried out simultaneously with two sets of instrument of the same performance, in order to eliminate the influence of time variance and improve measurement accuracy. The measurement results illustrate that at the interest frequencies, noises of power networks are mainly produced by the loads. The closer to the noise source (loads), the higher level the noise is. Noise level varies from different coupling phases. Noise level of phase to phase coupling is usually far less than or at least not greater than the noise level of the related two single phase to neutral coupling, respectively. At lower frequencies, the spectrum density level of the power-frequency harmonic noise is much higher than background noise.

Original languageEnglish
Title of host publicationProceedings - 2005 IEEE/PES Transmission and DistributionConference and Exhibition - Asia and Pacific
Pages1-7
Number of pages7
DOIs
StatePublished - 2005
Externally publishedYes
Event2005 IEEE/PES Transmission and DistributionConference and Exhibition - Asia and Pacific - Dalian, China
Duration: Aug 15 2005Aug 18 2005

Publication series

NameProceedings of the IEEE Power Engineering Society Transmission and Distribution Conference
Volume2005

Conference

Conference2005 IEEE/PES Transmission and DistributionConference and Exhibition - Asia and Pacific
Country/TerritoryChina
CityDalian
Period08/15/0508/18/05

Keywords

  • Noise measurement
  • Power system communication
  • Three-phase four-wire system

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