Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems
A DC microgrid has many advantageous features, such as low power losses, zero reactive power, and a simple interface with renewable energy sources (RESs). A bipolar DC microgrid is also highlighted due to its high-power quality, improved reliability, and enhanced system efficiency. However, the bipo...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/15/13/4559 |
| _version_ | 1797480330100211712 |
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| author | Jung-Sik Choi Seung-Yeol Oh Dae-Seak Cha Byoung-Sun Ko Mina Kim |
| author_facet | Jung-Sik Choi Seung-Yeol Oh Dae-Seak Cha Byoung-Sun Ko Mina Kim |
| author_sort | Jung-Sik Choi |
| collection | DOAJ |
| description | A DC microgrid has many advantageous features, such as low power losses, zero reactive power, and a simple interface with renewable energy sources (RESs). A bipolar DC microgrid is also highlighted due to its high-power quality, improved reliability, and enhanced system efficiency. However, the bipolar DC microgrid has high DC bus voltage fluctuation due to the load power unbalance between the poles. Therefore, this paper analyzes the DC bus voltage fluctuation that can occur in the bipolar DC microgrid. An autonomous grid voltage regulation method is introduced to regulate the DC bus voltage of a bipolar DC microgrid using distributed energy storage systems (ESSs). The proposed grid voltage regulation scheme using the distributed ESSs could regulate DC bus voltage in real time, regardless of the structure of the DC microgrid without external communication. Lastly, experimental results using a lab-scale bipolar DC microgrid prototype verified the proposed method. |
| first_indexed | 2024-03-09T21:58:50Z |
| format | Article |
| id | doaj.art-98089786fa8248ddbd8bd8b291ca5c42 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T21:58:50Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-98089786fa8248ddbd8bd8b291ca5c422023-11-23T19:53:45ZengMDPI AGEnergies1996-10732022-06-011513455910.3390/en15134559Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage SystemsJung-Sik Choi0Seung-Yeol Oh1Dae-Seak Cha2Byoung-Sun Ko3Mina Kim4Intelligent LVDC Demonstration Group, Korea Electronics Technology Institute, Naju-si 58277, KoreaIntelligent LVDC Demonstration Group, Korea Electronics Technology Institute, Naju-si 58277, KoreaIntelligent LVDC Demonstration Group, Korea Electronics Technology Institute, Naju-si 58277, KoreaIntelligent LVDC Demonstration Group, Korea Electronics Technology Institute, Naju-si 58277, KoreaIntelligent LVDC Demonstration Group, Korea Electronics Technology Institute, Naju-si 58277, KoreaA DC microgrid has many advantageous features, such as low power losses, zero reactive power, and a simple interface with renewable energy sources (RESs). A bipolar DC microgrid is also highlighted due to its high-power quality, improved reliability, and enhanced system efficiency. However, the bipolar DC microgrid has high DC bus voltage fluctuation due to the load power unbalance between the poles. Therefore, this paper analyzes the DC bus voltage fluctuation that can occur in the bipolar DC microgrid. An autonomous grid voltage regulation method is introduced to regulate the DC bus voltage of a bipolar DC microgrid using distributed energy storage systems (ESSs). The proposed grid voltage regulation scheme using the distributed ESSs could regulate DC bus voltage in real time, regardless of the structure of the DC microgrid without external communication. Lastly, experimental results using a lab-scale bipolar DC microgrid prototype verified the proposed method.https://www.mdpi.com/1996-1073/15/13/4559bus voltage regulationDC microgridESS utilizationpower distribution systempower management algorithm |
| spellingShingle | Jung-Sik Choi Seung-Yeol Oh Dae-Seak Cha Byoung-Sun Ko Mina Kim Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems Energies bus voltage regulation DC microgrid ESS utilization power distribution system power management algorithm |
| title | Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems |
| title_full | Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems |
| title_fullStr | Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems |
| title_full_unstemmed | Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems |
| title_short | Autonomous DC-Bus Voltage Regulation in DC Microgrid Using Distributed Energy Storage Systems |
| title_sort | autonomous dc bus voltage regulation in dc microgrid using distributed energy storage systems |
| topic | bus voltage regulation DC microgrid ESS utilization power distribution system power management algorithm |
| url | https://www.mdpi.com/1996-1073/15/13/4559 |
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