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An Overview on Voltage Stability Indices as Indicators of Voltage Stability for Networks with Distributed Generations Penetration

Received: 23 June 2015     Accepted: 1 July 2015     Published: 22 July 2015
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Abstract

The increase in Distributed Generation (DG) penetration in distribution network can be used as a means of addressing the increasing load demand without the upgrade of transmission lines. However, this increasing demand despite the supplementary supply from DG sources can cause the system to operate at its maximum capacity or at point of voltage collapse. It therefore, becomes necessary to determine the maximum capacity limit of the system before voltage collapse occurs due to instability. This paper reviews the concept of voltage stability index (VSI) as an indicator of a weak bus that is closed to its maximum allowable limit or the most critical line to voltage collapse in a network. The review also evaluates various voltage stability indices including those originally developed for transmission systems. Subsequently, their adequacies are quantitatively compared and from the comparison, it is observed that the existing voltage stability indices would be inadequate for assessing the most sensitive bus or line on the verge of voltage collapse for modern distribution systems.

Published in International Journal of Science, Technology and Society (Volume 3, Issue 4)
DOI 10.11648/j.ijsts.20150304.26
Page(s) 214-219
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2015. Published by Science Publishing Group

Keywords

Distributed Generation, Penetration, Voltage Stability, Voltage Stability Index, Voltage Collapse

References
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[3] D. Devaraj and J.P. Roselyn, On-line voltage stability assessment using radial basis function network model with reduced input features, International Journal of Electrical Power & Energy Systems, vol. 33, no. 9, Nov 2011, pp. 1550-1555.
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  • APA Style

    Haruna Musa. (2015). An Overview on Voltage Stability Indices as Indicators of Voltage Stability for Networks with Distributed Generations Penetration. International Journal of Science, Technology and Society, 3(4), 214-219. https://doi.org/10.11648/j.ijsts.20150304.26

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    ACS Style

    Haruna Musa. An Overview on Voltage Stability Indices as Indicators of Voltage Stability for Networks with Distributed Generations Penetration. Int. J. Sci. Technol. Soc. 2015, 3(4), 214-219. doi: 10.11648/j.ijsts.20150304.26

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    AMA Style

    Haruna Musa. An Overview on Voltage Stability Indices as Indicators of Voltage Stability for Networks with Distributed Generations Penetration. Int J Sci Technol Soc. 2015;3(4):214-219. doi: 10.11648/j.ijsts.20150304.26

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  • @article{10.11648/j.ijsts.20150304.26,
      author = {Haruna Musa},
      title = {An Overview on Voltage Stability Indices as Indicators of Voltage Stability for Networks with Distributed Generations Penetration},
      journal = {International Journal of Science, Technology and Society},
      volume = {3},
      number = {4},
      pages = {214-219},
      doi = {10.11648/j.ijsts.20150304.26},
      url = {https://doi.org/10.11648/j.ijsts.20150304.26},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsts.20150304.26},
      abstract = {The increase in Distributed Generation (DG) penetration in distribution network can be used as a means of addressing the increasing load demand without the upgrade of transmission lines. However, this increasing demand despite the supplementary supply from DG sources can cause the system to operate at its maximum capacity or at point of voltage collapse. It therefore, becomes necessary to determine the maximum capacity limit of the system before voltage collapse occurs due to instability. This paper reviews the concept of voltage stability index (VSI) as an indicator of a weak bus that is closed to its maximum allowable limit or the  most critical line to voltage collapse in a network. The review also evaluates various voltage stability indices including those originally developed for transmission systems. Subsequently, their adequacies are quantitatively compared and from the comparison, it is observed that the existing voltage stability indices would be inadequate for assessing the most sensitive bus or line on the verge of voltage collapse for modern distribution systems.},
     year = {2015}
    }
    

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    AB  - The increase in Distributed Generation (DG) penetration in distribution network can be used as a means of addressing the increasing load demand without the upgrade of transmission lines. However, this increasing demand despite the supplementary supply from DG sources can cause the system to operate at its maximum capacity or at point of voltage collapse. It therefore, becomes necessary to determine the maximum capacity limit of the system before voltage collapse occurs due to instability. This paper reviews the concept of voltage stability index (VSI) as an indicator of a weak bus that is closed to its maximum allowable limit or the  most critical line to voltage collapse in a network. The review also evaluates various voltage stability indices including those originally developed for transmission systems. Subsequently, their adequacies are quantitatively compared and from the comparison, it is observed that the existing voltage stability indices would be inadequate for assessing the most sensitive bus or line on the verge of voltage collapse for modern distribution systems.
    VL  - 3
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Author Information
  • Department of Electrical Engineering, Bayero University, Kano, Nigeria

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