Islanding strategy for distribution network with high proportion of wind/photovoltaic penetration considering flexible load
There are problems such as uncertain power output and load fluctuation when the distribution network with distributed generator (DG) operates on an island. In order to ensure stable and reliable power supply for islands, a dynamic island partition strategy is proposed which takes into account the st...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Power Engineering Technology
2022-07-01
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| Series: | 电力工程技术 |
| Subjects: | |
| Online Access: | https://www.epet-info.com/dlgcjs/article/html/210708981 |
| _version_ | 1811204758816423936 |
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| author | ZHAN Hongxia XIAO Junwen DENG Xiaoyong CHEN Tie ZHANG Xi HE Jiangtao |
| author_facet | ZHAN Hongxia XIAO Junwen DENG Xiaoyong CHEN Tie ZHANG Xi HE Jiangtao |
| author_sort | ZHAN Hongxia |
| collection | DOAJ |
| description | There are problems such as uncertain power output and load fluctuation when the distribution network with distributed generator (DG) operates on an island. In order to ensure stable and reliable power supply for islands, a dynamic island partition strategy is proposed which takes into account the standby demand of islands and gives full play to the flexible load regulation ability. Considering the uncertainty of wind power and photovoltaics, a prediction error model is established at first. The depth-first search algorithm is used to obtain the maximum power supply range for each time period, and chance constrained programming is used to deal with the random variables in the model, the island standby demands for each time period is obtained by the maximum power supply range. Then, modified particle swarm optimization (PSO) algorithm is used to give full play to the control ability of flexible load, and the optimal islanding results that meets the standby demand under each confidence levels is obtained with the objective of maximizing the comprehensive recovery value during the failure recovery period. Finally, a modified IEEE 33 node power distribution system is taken as an example to verify that the proposed strategy can effectively increase the value of islands while ensuring the reliability of islands. |
| first_indexed | 2024-04-12T03:18:06Z |
| format | Article |
| id | doaj.art-ea8bc6f0d1f14f978f79c14f4fc318c5 |
| institution | Directory Open Access Journal |
| issn | 2096-3203 |
| language | zho |
| last_indexed | 2024-04-12T03:18:06Z |
| publishDate | 2022-07-01 |
| publisher | Editorial Department of Electric Power Engineering Technology |
| record_format | Article |
| series | 电力工程技术 |
| spelling | doaj.art-ea8bc6f0d1f14f978f79c14f4fc318c52022-12-22T03:50:00ZzhoEditorial Department of Electric Power Engineering Technology电力工程技术2096-32032022-07-0141410811610.12158/j.2096-3203.2022.04.014Islanding strategy for distribution network with high proportion of wind/photovoltaic penetration considering flexible loadZHAN Hongxia0XIAO Junwen1DENG Xiaoyong2CHEN Tie3ZHANG Xi4HE Jiangtao5School of Electrical and Electronic Information, Xihua University, Chengdu 610039, ChinaSchool of Electrical and Electronic Information, Xihua University, Chengdu 610039, ChinaShinan Power Supply Branch Company of State Grid Chongqing Electric Power Company, Chongqing 400060, ChinaShinan Power Supply Branch Company of State Grid Chongqing Electric Power Company, Chongqing 400060, ChinaShinan Power Supply Branch Company of State Grid Chongqing Electric Power Company, Chongqing 400060, ChinaShinan Power Supply Branch Company of State Grid Chongqing Electric Power Company, Chongqing 400060, ChinaThere are problems such as uncertain power output and load fluctuation when the distribution network with distributed generator (DG) operates on an island. In order to ensure stable and reliable power supply for islands, a dynamic island partition strategy is proposed which takes into account the standby demand of islands and gives full play to the flexible load regulation ability. Considering the uncertainty of wind power and photovoltaics, a prediction error model is established at first. The depth-first search algorithm is used to obtain the maximum power supply range for each time period, and chance constrained programming is used to deal with the random variables in the model, the island standby demands for each time period is obtained by the maximum power supply range. Then, modified particle swarm optimization (PSO) algorithm is used to give full play to the control ability of flexible load, and the optimal islanding results that meets the standby demand under each confidence levels is obtained with the objective of maximizing the comprehensive recovery value during the failure recovery period. Finally, a modified IEEE 33 node power distribution system is taken as an example to verify that the proposed strategy can effectively increase the value of islands while ensuring the reliability of islands.https://www.epet-info.com/dlgcjs/article/html/210708981flexible loadhigh proportion of wind/photovoltaic penetrationisland partitionstandby demandparticle swarm optimization (pso) algorithmchance constrained programming |
| spellingShingle | ZHAN Hongxia XIAO Junwen DENG Xiaoyong CHEN Tie ZHANG Xi HE Jiangtao Islanding strategy for distribution network with high proportion of wind/photovoltaic penetration considering flexible load 电力工程技术 flexible load high proportion of wind/photovoltaic penetration island partition standby demand particle swarm optimization (pso) algorithm chance constrained programming |
| title | Islanding strategy for distribution network with high proportion of wind/photovoltaic penetration considering flexible load |
| title_full | Islanding strategy for distribution network with high proportion of wind/photovoltaic penetration considering flexible load |
| title_fullStr | Islanding strategy for distribution network with high proportion of wind/photovoltaic penetration considering flexible load |
| title_full_unstemmed | Islanding strategy for distribution network with high proportion of wind/photovoltaic penetration considering flexible load |
| title_short | Islanding strategy for distribution network with high proportion of wind/photovoltaic penetration considering flexible load |
| title_sort | islanding strategy for distribution network with high proportion of wind photovoltaic penetration considering flexible load |
| topic | flexible load high proportion of wind/photovoltaic penetration island partition standby demand particle swarm optimization (pso) algorithm chance constrained programming |
| url | https://www.epet-info.com/dlgcjs/article/html/210708981 |
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