Decentralized Virtual Impedance- Conventional Droop Control for Power Sharing for Inverter-Based Distributed Energy Resources of a Microgrid
The work presents the power-sharing in a standalone low voltage AC microgrid consisting of three parallel grid supporting inverters using a virtual impedance-based droop system. Typically, isolated microgrids suffer unique challenges regarding voltage, current, frequency regulation, power flow contr...
| 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/1996-1073/15/12/4439 |
| _version_ | 1797487746373124096 |
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| author | Elutunji Buraimoh Anuoluwapo O. Aluko Oluwafemi E. Oni Innocent E. Davidson |
| author_facet | Elutunji Buraimoh Anuoluwapo O. Aluko Oluwafemi E. Oni Innocent E. Davidson |
| author_sort | Elutunji Buraimoh |
| collection | DOAJ |
| description | The work presents the power-sharing in a standalone low voltage AC microgrid consisting of three parallel grid supporting inverters using a virtual impedance-based droop system. Typically, isolated microgrids suffer unique challenges regarding voltage, current, frequency regulation, power flow control, and power-sharing due to the absence of a stiff AC grid source. This work investigated the power flow and sharing technical challenges using three inverter-based distributed energy sources, three static loads, and one dynamic load. These distributed energy sources are interconnected with the loads using low voltage line impedance within the microgrid to implement the uneven power distribution. Furthermore, a distributed grid supporting control utilizing virtual impedance is proposed in this work to improve power-sharing. The microgrid model is developed with the MATLAB Simulink environment and validated using the Opal RT OP4510 simulator. The proposed technique ensured improved power-sharing and mitigated the effect of voltage drops introduced through a virtual impedance using combined positive and negative virtual. |
| first_indexed | 2024-03-09T23:53:08Z |
| format | Article |
| id | doaj.art-f815e37f5bb2451eb65be0435468161b |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T23:53:08Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-f815e37f5bb2451eb65be0435468161b2023-11-23T16:31:12ZengMDPI AGEnergies1996-10732022-06-011512443910.3390/en15124439Decentralized Virtual Impedance- Conventional Droop Control for Power Sharing for Inverter-Based Distributed Energy Resources of a MicrogridElutunji Buraimoh0Anuoluwapo O. Aluko1Oluwafemi E. Oni2Innocent E. Davidson3Department of Electrical Power Engineering, Durban University of Technology, Durban 4001, South AfricaDepartment of Electrical Power Engineering, Durban University of Technology, Durban 4001, South AfricaDepartment of Electrical Power Engineering, Durban University of Technology, Durban 4001, South AfricaDepartment of Electrical Power Engineering, Durban University of Technology, Durban 4001, South AfricaThe work presents the power-sharing in a standalone low voltage AC microgrid consisting of three parallel grid supporting inverters using a virtual impedance-based droop system. Typically, isolated microgrids suffer unique challenges regarding voltage, current, frequency regulation, power flow control, and power-sharing due to the absence of a stiff AC grid source. This work investigated the power flow and sharing technical challenges using three inverter-based distributed energy sources, three static loads, and one dynamic load. These distributed energy sources are interconnected with the loads using low voltage line impedance within the microgrid to implement the uneven power distribution. Furthermore, a distributed grid supporting control utilizing virtual impedance is proposed in this work to improve power-sharing. The microgrid model is developed with the MATLAB Simulink environment and validated using the Opal RT OP4510 simulator. The proposed technique ensured improved power-sharing and mitigated the effect of voltage drops introduced through a virtual impedance using combined positive and negative virtual.https://www.mdpi.com/1996-1073/15/12/4439droop controlmicrogriddistributed energy resourcesvirtual impedance |
| spellingShingle | Elutunji Buraimoh Anuoluwapo O. Aluko Oluwafemi E. Oni Innocent E. Davidson Decentralized Virtual Impedance- Conventional Droop Control for Power Sharing for Inverter-Based Distributed Energy Resources of a Microgrid Energies droop control microgrid distributed energy resources virtual impedance |
| title | Decentralized Virtual Impedance- Conventional Droop Control for Power Sharing for Inverter-Based Distributed Energy Resources of a Microgrid |
| title_full | Decentralized Virtual Impedance- Conventional Droop Control for Power Sharing for Inverter-Based Distributed Energy Resources of a Microgrid |
| title_fullStr | Decentralized Virtual Impedance- Conventional Droop Control for Power Sharing for Inverter-Based Distributed Energy Resources of a Microgrid |
| title_full_unstemmed | Decentralized Virtual Impedance- Conventional Droop Control for Power Sharing for Inverter-Based Distributed Energy Resources of a Microgrid |
| title_short | Decentralized Virtual Impedance- Conventional Droop Control for Power Sharing for Inverter-Based Distributed Energy Resources of a Microgrid |
| title_sort | decentralized virtual impedance conventional droop control for power sharing for inverter based distributed energy resources of a microgrid |
| topic | droop control microgrid distributed energy resources virtual impedance |
| url | https://www.mdpi.com/1996-1073/15/12/4439 |
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