Communicationless Adaptive Control Strategy for Effective Reactive Power Sharing in a Grid-Independent AC Microgrid
The microgrid (MG) ensures a reliable power supply as it can work in a grid-independent mode. This mode requires a coordinated control strategy among distributed generators (DGs). One major challenge in a grid-independent MG is the reactive power-sharing issue. The reactive power sharing is affected...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-07-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2022.946872/full |
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| author | Suchitra D Anitha D George Fernandez S Zuhair Muhammed Alaas Ziad M. Ali Ziad M. Ali Shady H. E. Abdel Aleem |
| author_facet | Suchitra D Anitha D George Fernandez S Zuhair Muhammed Alaas Ziad M. Ali Ziad M. Ali Shady H. E. Abdel Aleem |
| author_sort | Suchitra D |
| collection | DOAJ |
| description | The microgrid (MG) ensures a reliable power supply as it can work in a grid-independent mode. This mode requires a coordinated control strategy among distributed generators (DGs). One major challenge in a grid-independent MG is the reactive power-sharing issue. The reactive power sharing is affected by the mismatch of feeder impedance and private loads. This study thus proposed a proportionate reactive power-sharing scheme in a grid-independent mode by mathematically computing the equivalent impedance without the need for communication lines. A mathematical formula is derived to compute the equivalent impedance as a function of the total power output of DG and the power fed to the feeder. Based on the computed equivalent impedance, the virtual impedance is added to each feeder. The inclusion of virtual impedance in each line compensates the mismatch in feeder impedance and private loads providing accurate reactive power sharing among DGs. MATLAB Simulink was used to verify the effectiveness of the proposed control strategy. Furthermore, the real-time OPAL-RT simulator was used to verify the results. |
| first_indexed | 2024-04-13T03:53:32Z |
| format | Article |
| id | doaj.art-afdb1d799da14e9a840986d158c64631 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-13T03:53:32Z |
| publishDate | 2022-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-afdb1d799da14e9a840986d158c646312022-12-22T03:03:43ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2022-07-011010.3389/fenrg.2022.946872946872Communicationless Adaptive Control Strategy for Effective Reactive Power Sharing in a Grid-Independent AC MicrogridSuchitra D0Anitha D1George Fernandez S2Zuhair Muhammed Alaas3Ziad M. Ali4Ziad M. Ali5Shady H. E. Abdel Aleem6Department of EEE, SRMIST, Chennai, IndiaDepartment of EEE, SRMIST, Chennai, IndiaDepartment of EEE, SRMIST, Chennai, IndiaElectrical Engineering Department, College of Engineering, Jazan University, Jizan, Saudi ArabiaElectrical Engineering Department, College of Engineering, Prince Sattam bin Abdulaziz University, Wadi Al Dawasir, Saudi ArabiaElectrical Engineering Department, Aswan Faculty of Engineering, Aswan University, Aswan, EgyptDepartment of Electrical Engineering, Valley High Institute of Engineering and Technology, Science Valley Academy, Qalyubia, EgyptThe microgrid (MG) ensures a reliable power supply as it can work in a grid-independent mode. This mode requires a coordinated control strategy among distributed generators (DGs). One major challenge in a grid-independent MG is the reactive power-sharing issue. The reactive power sharing is affected by the mismatch of feeder impedance and private loads. This study thus proposed a proportionate reactive power-sharing scheme in a grid-independent mode by mathematically computing the equivalent impedance without the need for communication lines. A mathematical formula is derived to compute the equivalent impedance as a function of the total power output of DG and the power fed to the feeder. Based on the computed equivalent impedance, the virtual impedance is added to each feeder. The inclusion of virtual impedance in each line compensates the mismatch in feeder impedance and private loads providing accurate reactive power sharing among DGs. MATLAB Simulink was used to verify the effectiveness of the proposed control strategy. Furthermore, the real-time OPAL-RT simulator was used to verify the results.https://www.frontiersin.org/articles/10.3389/fenrg.2022.946872/fullreactive power sharingcommunicationless controlgrid-independent microgridequivalent impedancevirtual impedance |
| spellingShingle | Suchitra D Anitha D George Fernandez S Zuhair Muhammed Alaas Ziad M. Ali Ziad M. Ali Shady H. E. Abdel Aleem Communicationless Adaptive Control Strategy for Effective Reactive Power Sharing in a Grid-Independent AC Microgrid Frontiers in Energy Research reactive power sharing communicationless control grid-independent microgrid equivalent impedance virtual impedance |
| title | Communicationless Adaptive Control Strategy for Effective Reactive Power Sharing in a Grid-Independent AC Microgrid |
| title_full | Communicationless Adaptive Control Strategy for Effective Reactive Power Sharing in a Grid-Independent AC Microgrid |
| title_fullStr | Communicationless Adaptive Control Strategy for Effective Reactive Power Sharing in a Grid-Independent AC Microgrid |
| title_full_unstemmed | Communicationless Adaptive Control Strategy for Effective Reactive Power Sharing in a Grid-Independent AC Microgrid |
| title_short | Communicationless Adaptive Control Strategy for Effective Reactive Power Sharing in a Grid-Independent AC Microgrid |
| title_sort | communicationless adaptive control strategy for effective reactive power sharing in a grid independent ac microgrid |
| topic | reactive power sharing communicationless control grid-independent microgrid equivalent impedance virtual impedance |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2022.946872/full |
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