Coordinated voltage optimization method in distribution network with distributed photovoltaic
When the distributed photovoltaics enters the stage of extremely high proportion penetration, the problem of over-limit voltage in the distribution network becomes more prominent. A variety of adjustable resources in the distribution network are used in the common method to improve voltage distribut...
| Main Authors: | , , |
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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/220717014 |
| _version_ | 1797405577829154816 |
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| author | YUAN Changhao ZHU Jinda NI Jianfu |
| author_facet | YUAN Changhao ZHU Jinda NI Jianfu |
| author_sort | YUAN Changhao |
| collection | DOAJ |
| description | When the distributed photovoltaics enters the stage of extremely high proportion penetration, the problem of over-limit voltage in the distribution network becomes more prominent. A variety of adjustable resources in the distribution network are used in the common method to improve voltage distribution, but there is little consideration given to the information interaction between feeder layer and substation in practical engineering. Therefore, a voltage optimization method for distribution network considering the coordination between feeder layer and substation double layer is proposed in this paper. An optimal power flow model with the goal of minimizing the line loss is established in the feeder layer. The voltage at the head of the feeder layer and the injected power of the feeder layer are obtained by second-order cone relaxation, and fed back to the upper substation. A regulating voltage model is established in the substation with the goal of minimizing the voltage adjustment amount of PCC, and the adjusted voltage is returned to the feeder layer to update the power flow distribution. Then, the scheduling plan of adjustable resources are obtained. Finally, the extended IEEE 33-node power distribution system is taken as an example. The Cplex optimization solver is used to verify that the method can control the voltage and reduce the number of switching equipment. The economy of system operation on the basis of solving the distribution network voltage over-limit problem is improved. |
| first_indexed | 2024-03-09T03:12:01Z |
| format | Article |
| id | doaj.art-84870a224f984622ae487be3f4e5030d |
| institution | Directory Open Access Journal |
| issn | 2096-3203 |
| language | zho |
| last_indexed | 2024-03-09T03:12:01Z |
| 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-84870a224f984622ae487be3f4e5030d2023-12-04T00:44:16ZzhoEditorial Department of Electric Power Engineering Technology电力工程技术2096-32032023-11-01426748210.12158/j.2096-3203.2023.06.008220717014Coordinated voltage optimization method in distribution network with distributed photovoltaicYUAN Changhao0ZHU Jinda1NI Jianfu2NARI Group (State Grid Electric Power Research Institute) Co., Ltd., Nanjing 211106, ChinaNARI Group (State Grid Electric Power Research Institute) Co., Ltd., Nanjing 211106, ChinaNARI Group (State Grid Electric Power Research Institute) Co., Ltd., Nanjing 211106, ChinaWhen the distributed photovoltaics enters the stage of extremely high proportion penetration, the problem of over-limit voltage in the distribution network becomes more prominent. A variety of adjustable resources in the distribution network are used in the common method to improve voltage distribution, but there is little consideration given to the information interaction between feeder layer and substation in practical engineering. Therefore, a voltage optimization method for distribution network considering the coordination between feeder layer and substation double layer is proposed in this paper. An optimal power flow model with the goal of minimizing the line loss is established in the feeder layer. The voltage at the head of the feeder layer and the injected power of the feeder layer are obtained by second-order cone relaxation, and fed back to the upper substation. A regulating voltage model is established in the substation with the goal of minimizing the voltage adjustment amount of PCC, and the adjusted voltage is returned to the feeder layer to update the power flow distribution. Then, the scheduling plan of adjustable resources are obtained. Finally, the extended IEEE 33-node power distribution system is taken as an example. The Cplex optimization solver is used to verify that the method can control the voltage and reduce the number of switching equipment. The economy of system operation on the basis of solving the distribution network voltage over-limit problem is improved.https://www.epet-info.com/dlgcjsen/article/abstract/220717014double layer coordinationinformation interactionreactive power optimizationextremely high proportion of penetrationover-limit voltagesecond-order cone programming |
| spellingShingle | YUAN Changhao ZHU Jinda NI Jianfu Coordinated voltage optimization method in distribution network with distributed photovoltaic 电力工程技术 double layer coordination information interaction reactive power optimization extremely high proportion of penetration over-limit voltage second-order cone programming |
| title | Coordinated voltage optimization method in distribution network with distributed photovoltaic |
| title_full | Coordinated voltage optimization method in distribution network with distributed photovoltaic |
| title_fullStr | Coordinated voltage optimization method in distribution network with distributed photovoltaic |
| title_full_unstemmed | Coordinated voltage optimization method in distribution network with distributed photovoltaic |
| title_short | Coordinated voltage optimization method in distribution network with distributed photovoltaic |
| title_sort | coordinated voltage optimization method in distribution network with distributed photovoltaic |
| topic | double layer coordination information interaction reactive power optimization extremely high proportion of penetration over-limit voltage second-order cone programming |
| url | https://www.epet-info.com/dlgcjsen/article/abstract/220717014 |
| work_keys_str_mv | AT yuanchanghao coordinatedvoltageoptimizationmethodindistributionnetworkwithdistributedphotovoltaic AT zhujinda coordinatedvoltageoptimizationmethodindistributionnetworkwithdistributedphotovoltaic AT nijianfu coordinatedvoltageoptimizationmethodindistributionnetworkwithdistributedphotovoltaic |