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A refined general summation law for VU emission assessment in radial networks

Journal Article


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Abstract


  • Voltage unbalance (VU) management of power systems requires the development of well researched engineering practices to maintain acceptable VU levels while utilising the total VU absorption capacity of the power system. In this regard, IEC/TR 61000-3-13:2008 prescribes a VU emission allocation methodology based on a stochastic approach which uses a general summation law in order to aggregate numerous sources of unbalance to take into account their random variations. On the other hand, recent deterministic studies on VU emission assessment at the post-connection stage of unbalanced installations present a complex VU factor based approach to determine constituent components of the post-connection VU emission at a point of valuation. The primary objective of the work presented in this paper is to develop statistical approaches for compliance assessment using the outcomes of the deterministic methodologies on VU emission assessment, thus refining the existing general summation law. A revised general summation law is established, introducing weighting factors to evaluate the influences

    made by different sources of unbalance separately, in order to assess VU emission in radial networks.

Publication Date


  • 2015

Citation


  • U. Jayatunga, S. Perera, P. Ciufo & A. P. Agalgaonkar, "A refined general summation law for VU emission assessment in radial networks," International Journal of Electrical Power and Energy Systems, vol. 73, pp. 329-339, 2015.

Scopus Eid


  • 2-s2.0-84929991100

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=5694&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4673

Number Of Pages


  • 10

Start Page


  • 329

End Page


  • 339

Volume


  • 73

Abstract


  • Voltage unbalance (VU) management of power systems requires the development of well researched engineering practices to maintain acceptable VU levels while utilising the total VU absorption capacity of the power system. In this regard, IEC/TR 61000-3-13:2008 prescribes a VU emission allocation methodology based on a stochastic approach which uses a general summation law in order to aggregate numerous sources of unbalance to take into account their random variations. On the other hand, recent deterministic studies on VU emission assessment at the post-connection stage of unbalanced installations present a complex VU factor based approach to determine constituent components of the post-connection VU emission at a point of valuation. The primary objective of the work presented in this paper is to develop statistical approaches for compliance assessment using the outcomes of the deterministic methodologies on VU emission assessment, thus refining the existing general summation law. A revised general summation law is established, introducing weighting factors to evaluate the influences

    made by different sources of unbalance separately, in order to assess VU emission in radial networks.

Publication Date


  • 2015

Citation


  • U. Jayatunga, S. Perera, P. Ciufo & A. P. Agalgaonkar, "A refined general summation law for VU emission assessment in radial networks," International Journal of Electrical Power and Energy Systems, vol. 73, pp. 329-339, 2015.

Scopus Eid


  • 2-s2.0-84929991100

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=5694&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4673

Number Of Pages


  • 10

Start Page


  • 329

End Page


  • 339

Volume


  • 73