Voltage Control Scheme with Distributed Generation and Grid Connected Converter in a DC Microgrid
Direct Current (DC) microgrids are expected to become larger due to the rapid growth of DC energy sources and power loads. As the scale of the system expends, the importance of voltage control will be increased to operate power systems stably. Many studies have been performed on voltage control meth...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2014-10-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/7/10/6477 |
| _version_ | 1817990383362113536 |
|---|---|
| author | Jong-Chan Choi Ho-Yong Jeong Jin-Young Choi Dong-Jun Won Seon-Ju Ahn Seung-il Moon |
| author_facet | Jong-Chan Choi Ho-Yong Jeong Jin-Young Choi Dong-Jun Won Seon-Ju Ahn Seung-il Moon |
| author_sort | Jong-Chan Choi |
| collection | DOAJ |
| description | Direct Current (DC) microgrids are expected to become larger due to the rapid growth of DC energy sources and power loads. As the scale of the system expends, the importance of voltage control will be increased to operate power systems stably. Many studies have been performed on voltage control methods in a DC microgrid, but most of them focused only on a small scale microgrid, such as a building microgrid. Therefore, a new control method is needed for a middle or large scale DC microgrid. This paper analyzes voltage drop problems in a large DC microgrid and proposes a cooperative voltage control scheme with a distributed generator (DG) and a grid connected converter (GCC). For the voltage control with DGs, their location and capacity should be considered for economic operation in the systems. Accordingly, an optimal DG allocation algorithm is proposed to minimize the capacity of a DG for voltage control in DC microgrids. The proposed methods are verified with typical load types by a simulation using MATLAB and PSCAD/EMTDC. |
| first_indexed | 2024-04-14T00:59:05Z |
| format | Article |
| id | doaj.art-3286fd6e0afb447e8ace6307748508e6 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T00:59:05Z |
| publishDate | 2014-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-3286fd6e0afb447e8ace6307748508e62022-12-22T02:21:29ZengMDPI AGEnergies1996-10732014-10-017106477649110.3390/en7106477en7106477Voltage Control Scheme with Distributed Generation and Grid Connected Converter in a DC MicrogridJong-Chan Choi0Ho-Yong Jeong1Jin-Young Choi2Dong-Jun Won3Seon-Ju Ahn4Seung-il Moon5Department of Electrical Engineering, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, KoreaDepartment of Electrical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-744, KoreaDepartment of Electrical Engineering, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, KoreaDepartment of Electrical Engineering, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, KoreaDepartment of Electrical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 500-757, KoreaDepartment of Electrical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-744, KoreaDirect Current (DC) microgrids are expected to become larger due to the rapid growth of DC energy sources and power loads. As the scale of the system expends, the importance of voltage control will be increased to operate power systems stably. Many studies have been performed on voltage control methods in a DC microgrid, but most of them focused only on a small scale microgrid, such as a building microgrid. Therefore, a new control method is needed for a middle or large scale DC microgrid. This paper analyzes voltage drop problems in a large DC microgrid and proposes a cooperative voltage control scheme with a distributed generator (DG) and a grid connected converter (GCC). For the voltage control with DGs, their location and capacity should be considered for economic operation in the systems. Accordingly, an optimal DG allocation algorithm is proposed to minimize the capacity of a DG for voltage control in DC microgrids. The proposed methods are verified with typical load types by a simulation using MATLAB and PSCAD/EMTDC.http://www.mdpi.com/1996-1073/7/10/6477voltage controlDC microgriddistributed generationoptimal allocationbattery energy storage system |
| spellingShingle | Jong-Chan Choi Ho-Yong Jeong Jin-Young Choi Dong-Jun Won Seon-Ju Ahn Seung-il Moon Voltage Control Scheme with Distributed Generation and Grid Connected Converter in a DC Microgrid Energies voltage control DC microgrid distributed generation optimal allocation battery energy storage system |
| title | Voltage Control Scheme with Distributed Generation and Grid Connected Converter in a DC Microgrid |
| title_full | Voltage Control Scheme with Distributed Generation and Grid Connected Converter in a DC Microgrid |
| title_fullStr | Voltage Control Scheme with Distributed Generation and Grid Connected Converter in a DC Microgrid |
| title_full_unstemmed | Voltage Control Scheme with Distributed Generation and Grid Connected Converter in a DC Microgrid |
| title_short | Voltage Control Scheme with Distributed Generation and Grid Connected Converter in a DC Microgrid |
| title_sort | voltage control scheme with distributed generation and grid connected converter in a dc microgrid |
| topic | voltage control DC microgrid distributed generation optimal allocation battery energy storage system |
| url | http://www.mdpi.com/1996-1073/7/10/6477 |
| work_keys_str_mv | AT jongchanchoi voltagecontrolschemewithdistributedgenerationandgridconnectedconverterinadcmicrogrid AT hoyongjeong voltagecontrolschemewithdistributedgenerationandgridconnectedconverterinadcmicrogrid AT jinyoungchoi voltagecontrolschemewithdistributedgenerationandgridconnectedconverterinadcmicrogrid AT dongjunwon voltagecontrolschemewithdistributedgenerationandgridconnectedconverterinadcmicrogrid AT seonjuahn voltagecontrolschemewithdistributedgenerationandgridconnectedconverterinadcmicrogrid AT seungilmoon voltagecontrolschemewithdistributedgenerationandgridconnectedconverterinadcmicrogrid |