A Comprehensive Weight-Based Severity Evaluation Method of Voltage Sag in Distribution Networks
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 networks, a comprehen...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/19/6434 |
| _version_ | 1797516594547523584 |
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| author | Xiaohan Guo Yong Li Shaoyang Wang Yijia Cao Mingmin Zhang Yicheng Zhou Nakanishi Yosuke |
| author_facet | Xiaohan Guo Yong Li Shaoyang Wang Yijia Cao Mingmin Zhang Yicheng Zhou Nakanishi Yosuke |
| author_sort | Xiaohan Guo |
| collection | DOAJ |
| description | 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 networks, 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 PowerFactory (15.1.7, Gomaringen, Germany). |
| first_indexed | 2024-03-10T07:03:05Z |
| format | Article |
| id | doaj.art-aa9ce61de5924f37b04dbc4ed5a42d31 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T07:03:05Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-aa9ce61de5924f37b04dbc4ed5a42d312023-11-22T16:04:18ZengMDPI AGEnergies1996-10732021-10-011419643410.3390/en14196434A Comprehensive Weight-Based Severity Evaluation Method of Voltage Sag in Distribution NetworksXiaohan Guo0Yong Li1Shaoyang Wang2Yijia Cao3Mingmin Zhang4Yicheng Zhou5Nakanishi Yosuke6College of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaCollege of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaCollege of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaCollege of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410114, ChinaCollege of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaGraduate School of Environment and Energy Engineering, Waseda University, Tokyo 169-8050, JapanGraduate School of Environment and Energy Engineering, Waseda University, Tokyo 169-8050, JapanWith 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 networks, 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 PowerFactory (15.1.7, Gomaringen, Germany).https://www.mdpi.com/1996-1073/14/19/6434voltage sagindex evaluationanalytic hierarchy processentropy methodseverity evaluation |
| spellingShingle | Xiaohan Guo Yong Li Shaoyang Wang Yijia Cao Mingmin Zhang Yicheng Zhou Nakanishi Yosuke A Comprehensive Weight-Based Severity Evaluation Method of Voltage Sag in Distribution Networks Energies voltage sag index evaluation analytic hierarchy process entropy method severity evaluation |
| title | A Comprehensive Weight-Based Severity Evaluation Method of Voltage Sag in Distribution Networks |
| title_full | A Comprehensive Weight-Based Severity Evaluation Method of Voltage Sag in Distribution Networks |
| title_fullStr | A Comprehensive Weight-Based Severity Evaluation Method of Voltage Sag in Distribution Networks |
| title_full_unstemmed | A Comprehensive Weight-Based Severity Evaluation Method of Voltage Sag in Distribution Networks |
| title_short | A Comprehensive Weight-Based Severity Evaluation Method of Voltage Sag in Distribution Networks |
| title_sort | comprehensive weight based severity evaluation method of voltage sag in distribution networks |
| topic | voltage sag index evaluation analytic hierarchy process entropy method severity evaluation |
| url | https://www.mdpi.com/1996-1073/14/19/6434 |
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