A Feasibility Study of a Virtual Power Line Device to Improve Hosting Capacity in Renewable Energy Sources
As many renewable energy sources have been waiting to be interconnected with distribution systems due to the lack of power system infrastructure in Korea, studies to solve the delayed problem for renewable energy sources required. In order to overcome these problems, this paper presents an introduct...
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MDPI AG
2025-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/14/3714 |
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| author | Seong-Eun Rho Sung-Moon Choi Joong-Seon Lee Hyun-Sang You Seung-Ho Lee Dae-Seok Rho |
| author_facet | Seong-Eun Rho Sung-Moon Choi Joong-Seon Lee Hyun-Sang You Seung-Ho Lee Dae-Seok Rho |
| author_sort | Seong-Eun Rho |
| collection | DOAJ |
| description | As many renewable energy sources have been waiting to be interconnected with distribution systems due to the lack of power system infrastructure in Korea, studies to solve the delayed problem for renewable energy sources required. In order to overcome these problems, this paper presents an introduction model and optimal capacity algorithm of a VPL (virtual power line) device, which is a virtual power line operation technology to manage the power system by operating an ESS installed at the coupling point of renewable energy source without additionally expanding the power system infrastructure in a conventional way; this paper also proposes an economic evaluation method to assess the feasibility of the VPL device. The optimal capacity of the VPL device is determined by solving the over-voltage problem for the customer, and the economic evaluation method for the VPL device is considered by cost and benefit elements to evaluate the feasibility of introduction model for VPL device. From the simulation result of the proposed optimal capacity algorithm and economic evaluation method based on the introduction model in the VPL device, and it was confirmed that the optimal kW capacity of VPL device was selected as the maximum value in power control values, and the optimal kWh capacity was also determined by accumulating the power control values over the time intervals; also, the proper capacity of the VPL can be more economical than the investment cost of power system infrastructure expansion in the conventional method. |
| format | Article |
| id | doaj-art-5565a089464c4d3984e7dece4e518502 |
| institution | DOAJ |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-5565a089464c4d3984e7dece4e5185022025-08-20T02:45:38ZengMDPI AGEnergies1996-10732025-07-011814371410.3390/en18143714A Feasibility Study of a Virtual Power Line Device to Improve Hosting Capacity in Renewable Energy SourcesSeong-Eun Rho0Sung-Moon Choi1Joong-Seon Lee2Hyun-Sang You3Seung-Ho Lee4Dae-Seok Rho5Department of Electrical Engineering, Korea University of Technology & Education (KUT), Cheonan-si 31253, Chungcheongnam-do, Republic of KoreaDepartment of Electrical Engineering, Korea University of Technology & Education (KUT), Cheonan-si 31253, Chungcheongnam-do, Republic of KoreaDepartment of Electrical Engineering, Korea University of Technology & Education (KUT), Cheonan-si 31253, Chungcheongnam-do, Republic of KoreaDepartment of Electrical Engineering, Korea University of Technology & Education (KUT), Cheonan-si 31253, Chungcheongnam-do, Republic of KoreaDepartment of Electrical Engineering, Korea University of Technology & Education (KUT), Cheonan-si 31253, Chungcheongnam-do, Republic of KoreaDepartment of Electrical Engineering, Korea University of Technology & Education (KUT), Cheonan-si 31253, Chungcheongnam-do, Republic of KoreaAs many renewable energy sources have been waiting to be interconnected with distribution systems due to the lack of power system infrastructure in Korea, studies to solve the delayed problem for renewable energy sources required. In order to overcome these problems, this paper presents an introduction model and optimal capacity algorithm of a VPL (virtual power line) device, which is a virtual power line operation technology to manage the power system by operating an ESS installed at the coupling point of renewable energy source without additionally expanding the power system infrastructure in a conventional way; this paper also proposes an economic evaluation method to assess the feasibility of the VPL device. The optimal capacity of the VPL device is determined by solving the over-voltage problem for the customer, and the economic evaluation method for the VPL device is considered by cost and benefit elements to evaluate the feasibility of introduction model for VPL device. From the simulation result of the proposed optimal capacity algorithm and economic evaluation method based on the introduction model in the VPL device, and it was confirmed that the optimal kW capacity of VPL device was selected as the maximum value in power control values, and the optimal kWh capacity was also determined by accumulating the power control values over the time intervals; also, the proper capacity of the VPL can be more economical than the investment cost of power system infrastructure expansion in the conventional method.https://www.mdpi.com/1996-1073/18/14/3714VPLrenewable energy sourcefeasibilityoptimal capacityintroduction modelpower system infrastructure |
| spellingShingle | Seong-Eun Rho Sung-Moon Choi Joong-Seon Lee Hyun-Sang You Seung-Ho Lee Dae-Seok Rho A Feasibility Study of a Virtual Power Line Device to Improve Hosting Capacity in Renewable Energy Sources Energies VPL renewable energy source feasibility optimal capacity introduction model power system infrastructure |
| title | A Feasibility Study of a Virtual Power Line Device to Improve Hosting Capacity in Renewable Energy Sources |
| title_full | A Feasibility Study of a Virtual Power Line Device to Improve Hosting Capacity in Renewable Energy Sources |
| title_fullStr | A Feasibility Study of a Virtual Power Line Device to Improve Hosting Capacity in Renewable Energy Sources |
| title_full_unstemmed | A Feasibility Study of a Virtual Power Line Device to Improve Hosting Capacity in Renewable Energy Sources |
| title_short | A Feasibility Study of a Virtual Power Line Device to Improve Hosting Capacity in Renewable Energy Sources |
| title_sort | feasibility study of a virtual power line device to improve hosting capacity in renewable energy sources |
| topic | VPL renewable energy source feasibility optimal capacity introduction model power system infrastructure |
| url | https://www.mdpi.com/1996-1073/18/14/3714 |
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