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

doi:10.3390/en14196434

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

^*Corresponding author for this work

Graduate School of Environment and Energy Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

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).

Original language	English
Article number	6434
Journal	Energies
Volume	14
Issue number	19
DOIs	https://doi.org/10.3390/en14196434
Publication status	Published - 2021 Oct 1

Keywords

Analytic hierarchy process
Entropy method
Index evaluation
Severity evaluation
Voltage sag

ASJC Scopus subject areas

Control and Optimization
Energy (miscellaneous)
Engineering (miscellaneous)
Energy Engineering and Power Technology
Electrical and Electronic Engineering
Building and Construction
Fuel Technology
Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/en14196434

Cite this

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title = "A comprehensive weight‐based severity evaluation method of voltage sag in distribution networks",

abstract = "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).",

keywords = "Analytic hierarchy process, Entropy method, Index evaluation, Severity evaluation, Voltage sag",

author = "Xiaohan Guo and Yong Li and Shaoyang Wang and Yijia Cao and Mingmin Zhang and Yicheng Zhou and Nakanishi Yosuke",

note = "Funding Information: This work was supported in part by the International Science and Technology Coopera-tion Program of China under Grant 2018YFE0125300, in part by the National Nature Science Foundation of China under Grant 52061130217, in part by the Innovative Construction Program of Hunan Province of China under Grant 2019RS1016, in part by the 111 Project of China under Grant B17016, and in part by the Excellent Innovation Youth Program of Changsha of China under Grant KQ2009037. Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

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doi = "10.3390/en14196434",

language = "English",

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T1 - A comprehensive weight‐based severity evaluation method of voltage sag in distribution networks

AU - Guo, Xiaohan

AU - Li, Yong

AU - Wang, Shaoyang

AU - Cao, Yijia

AU - Zhang, Mingmin

AU - Zhou, Yicheng

AU - Yosuke, Nakanishi

N1 - Funding Information: This work was supported in part by the International Science and Technology Coopera-tion Program of China under Grant 2018YFE0125300, in part by the National Nature Science Foundation of China under Grant 52061130217, in part by the Innovative Construction Program of Hunan Province of China under Grant 2019RS1016, in part by the 111 Project of China under Grant B17016, and in part by the Excellent Innovation Youth Program of Changsha of China under Grant KQ2009037. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2021/10/1

Y1 - 2021/10/1

N2 - 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).

AB - 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).

KW - Analytic hierarchy process

KW - Entropy method

KW - Index evaluation

KW - Severity evaluation

KW - Voltage sag

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

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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