A comprehensive weight‐based severity evaluation method of voltage sag in distribution networks

Xiaohan Guo, Yong Li*, Shaoyang Wang, Yijia Cao, Mingmin Zhang, Yicheng Zhou, Nakanishi Yosuke

*この研究の対応する著者

研究成果査読

抄録

With the increasing use of sensitive loads in frequency converters and in relays in distribution networks, voltage sag has become a major power quality issue that urgently needs to be solved. For the purpose of improving the understanding of voltage sag severity in distribution net-works, a comprehensive weight‐based severity evaluation method of voltage sag is presented in this paper. First, a multi‐side index system that takes into account the combined influence of the source, network, and the load is established. A comprehensive weight method, which combines the improved analytic hierarchy process (IAHP) and the entropy method, is then adopted to determine the index weight. The weight of each index and the degree of superiority are linearly weighted to obtain the severity of voltage sag at different observation points. Finally, the effectiveness of the proposed method is verified using a distribution network model established in DIgSILENT Power‐ Factory (15.1.7, German).

本文言語English
論文番号6434
ジャーナルEnergies
14
19
DOI
出版ステータスPublished - 2021 10 1

ASJC Scopus subject areas

  • 再生可能エネルギー、持続可能性、環境
  • 燃料技術
  • エネルギー工学および電力技術
  • エネルギー(その他)
  • 制御と最適化
  • 電子工学および電気工学

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