Evaluation and optimization of available capacity of distribution network under new infrastructure load and photovoltaic access
With the proposal of the new infrastructure concept, new loads represented by 5G base stations and electric vehicles are connected to the urban distribution network on a large scale, which has a significant impact on the safety and economic operation of the distribution network. In order to evaluate...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Power Engineering Technology
2023-11-01
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| Series: | 电力工程技术 |
| Subjects: | |
| Online Access: | https://www.epet-info.com/dlgcjsen/article/abstract/220607817 |
| _version_ | 1827596517674844160 |
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| author | GUO Yong LI Qiuyan MA Jie QUAN Shaoli LI Zhengbo LIU Youbo |
| author_facet | GUO Yong LI Qiuyan MA Jie QUAN Shaoli LI Zhengbo LIU Youbo |
| author_sort | GUO Yong |
| collection | DOAJ |
| description | With the proposal of the new infrastructure concept, new loads represented by 5G base stations and electric vehicles are connected to the urban distribution network on a large scale, which has a significant impact on the safety and economic operation of the distribution network. In order to evaluate the capacity of urban distribution network to accommodate the new infrastructure load, a method for evaluating the available capacity of distribution network based on load growth demand and distribution network carrying capacity is proposed. The total amount of increased load of each load node is caculated as the available capacity under the condition of new infrastructure load and distributed energy access. Considering the constraints of voltage and power flow, the second-order cone relaxation method is used to solve the model. In addition, considering the influence of the location and sequence of distributed photovoltaic access on the available capacity, the grid-connected position of distributed photovoltaic is optimized according to the dynamic programming method with the objective of maximising the available capacity. The simulation analysis is carried out in a regional distribution network grid, and the results show that the proposed method can effectively evaluate the available capacity level of the urban distribution network grid, and realize the dynamic optimization of available capacity through the orderly access of distributed photovoltaic. |
| first_indexed | 2024-03-09T03:11:41Z |
| format | Article |
| id | doaj.art-31815b6856b3401196bf76df7ff7dcac |
| institution | Directory Open Access Journal |
| issn | 2096-3203 |
| language | zho |
| last_indexed | 2024-03-09T03:11:41Z |
| publishDate | 2023-11-01 |
| publisher | Editorial Department of Electric Power Engineering Technology |
| record_format | Article |
| series | 电力工程技术 |
| spelling | doaj.art-31815b6856b3401196bf76df7ff7dcac2023-12-04T00:44:16ZzhoEditorial Department of Electric Power Engineering Technology电力工程技术2096-32032023-11-01426647310.12158/j.2096-3203.2023.06.007220607817Evaluation and optimization of available capacity of distribution network under new infrastructure load and photovoltaic accessGUO Yong0LI Qiuyan1MA Jie2QUAN Shaoli3LI Zhengbo4LIU Youbo5State Grid Henan Electric Power Company Economic Research Institute, Zhengzhou 450000, ChinaState Grid Henan Electric Power Company Economic Research Institute, Zhengzhou 450000, ChinaState Grid Henan Electric Power Company Economic Research Institute, Zhengzhou 450000, ChinaState Grid Henan Electric Power Company Economic Research Institute, Zhengzhou 450000, ChinaCollege of Electrical Engineering, Sichuan University, Chengdu 610065, ChinaCollege of Electrical Engineering, Sichuan University, Chengdu 610065, ChinaWith the proposal of the new infrastructure concept, new loads represented by 5G base stations and electric vehicles are connected to the urban distribution network on a large scale, which has a significant impact on the safety and economic operation of the distribution network. In order to evaluate the capacity of urban distribution network to accommodate the new infrastructure load, a method for evaluating the available capacity of distribution network based on load growth demand and distribution network carrying capacity is proposed. The total amount of increased load of each load node is caculated as the available capacity under the condition of new infrastructure load and distributed energy access. Considering the constraints of voltage and power flow, the second-order cone relaxation method is used to solve the model. In addition, considering the influence of the location and sequence of distributed photovoltaic access on the available capacity, the grid-connected position of distributed photovoltaic is optimized according to the dynamic programming method with the objective of maximising the available capacity. The simulation analysis is carried out in a regional distribution network grid, and the results show that the proposed method can effectively evaluate the available capacity level of the urban distribution network grid, and realize the dynamic optimization of available capacity through the orderly access of distributed photovoltaic.https://www.epet-info.com/dlgcjsen/article/abstract/220607817urban distribution networknew infrastructure loadavailable capacity evaluationsecond-order cone relaxationphotovoltaic unit siting optimizationdynamic programming |
| spellingShingle | GUO Yong LI Qiuyan MA Jie QUAN Shaoli LI Zhengbo LIU Youbo Evaluation and optimization of available capacity of distribution network under new infrastructure load and photovoltaic access 电力工程技术 urban distribution network new infrastructure load available capacity evaluation second-order cone relaxation photovoltaic unit siting optimization dynamic programming |
| title | Evaluation and optimization of available capacity of distribution network under new infrastructure load and photovoltaic access |
| title_full | Evaluation and optimization of available capacity of distribution network under new infrastructure load and photovoltaic access |
| title_fullStr | Evaluation and optimization of available capacity of distribution network under new infrastructure load and photovoltaic access |
| title_full_unstemmed | Evaluation and optimization of available capacity of distribution network under new infrastructure load and photovoltaic access |
| title_short | Evaluation and optimization of available capacity of distribution network under new infrastructure load and photovoltaic access |
| title_sort | evaluation and optimization of available capacity of distribution network under new infrastructure load and photovoltaic access |
| topic | urban distribution network new infrastructure load available capacity evaluation second-order cone relaxation photovoltaic unit siting optimization dynamic programming |
| url | https://www.epet-info.com/dlgcjsen/article/abstract/220607817 |
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