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Assessing network compliance for power quality performance

Conference Paper


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Abstract


  • IEC standards suggest that a network is compliant if 95% of the sites are compliant. In many cases it is only practical to measure the PQ parameters of some of the sites in a network and to use statistical analysis. The paper examines the minimum number of monitored sites needed to demonstrate compliance with a prescribed degree of confidence - e.g. at the 95% confidence level. Analysis is made of samples extracted randomly from sites included in the Australian Long Term National PQ Survey. The required number of sites is found to vary with the PQ disturbance of concern and is largest with voltage unbalance. In all cases the number exceeds that proposed in CEER guidelines.

Publication Date


  • 2014

Citation


  • S. Elphick, V. Gosbell, V. Smith, G. Drury & R. Barr, "Assessing network compliance for power quality performance," in 16th IEEE International Conference on Harmonics and Quality of Power (ICHQP 2014), 2014, pp. 317-321.

Scopus Eid


  • 2-s2.0-84904282035

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3919&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2910

Has Global Citation Frequency


Start Page


  • 317

End Page


  • 321

Place Of Publication


  • United States

Abstract


  • IEC standards suggest that a network is compliant if 95% of the sites are compliant. In many cases it is only practical to measure the PQ parameters of some of the sites in a network and to use statistical analysis. The paper examines the minimum number of monitored sites needed to demonstrate compliance with a prescribed degree of confidence - e.g. at the 95% confidence level. Analysis is made of samples extracted randomly from sites included in the Australian Long Term National PQ Survey. The required number of sites is found to vary with the PQ disturbance of concern and is largest with voltage unbalance. In all cases the number exceeds that proposed in CEER guidelines.

Publication Date


  • 2014

Citation


  • S. Elphick, V. Gosbell, V. Smith, G. Drury & R. Barr, "Assessing network compliance for power quality performance," in 16th IEEE International Conference on Harmonics and Quality of Power (ICHQP 2014), 2014, pp. 317-321.

Scopus Eid


  • 2-s2.0-84904282035

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3919&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2910

Has Global Citation Frequency


Start Page


  • 317

End Page


  • 321

Place Of Publication


  • United States