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Semicentralized Power Sharing Scheme for Islanded Parallel-Connected Inverters.

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Title: Semicentralized Power Sharing Scheme for Islanded Parallel-Connected Inverters.
Authors: Azrik Roslan, Mohd1 (AUTHOR), Ahmed, Khaled1 (AUTHOR), Adam, Grain1 (AUTHOR), Elkhateb, Ahmad2 (AUTHOR), Issa, Walid3 (AUTHOR), Williams, Barry1 (AUTHOR)
Source: International Transactions on Electrical Energy Systems. 3/7/2022, p1-21. 21p.
Subject Terms: Microgrids, Reactive power, Knowledge transfer, Sharing, Electric inverters, Point set theory
Abstract: This paper presents a new control scheme that permits flexible power sharing between parallel inverters connected to microgrid operating in an island mode. The presented scheme processes the information of active and reactive output powers from all inverters in a central controller that calculates the set points for each inverter, based on the desired ratios of their output powers. These necessitate adjustment of the inverters' terminal voltages (phase and magnitude) relative to the voltage at the common AC bus. The proposed power-sharing scheme uses a robust low bandwidth-based sharing communication to achieve precision and fast dynamic response, minimum circulating current between parallel inverters, and adapting to changes in line impedance, even under information transfer delays. The presented power-sharing scheme has been validated using MATLAB/Simulink simulation and experimental results obtained from a prototype of three three-phase parallel inverters connected to a number of loads. The results emphasize the superiority of the proposed topology performance under different loads (25% to 100%), line impedances, grid conditions, and communication delay. [ABSTRACT FROM AUTHOR]
Copyright of International Transactions on Electrical Energy Systems is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Semicentralized Power Sharing Scheme for Islanded Parallel-Connected Inverters.
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  Data: <searchLink fieldCode="JN" term="%22International+Transactions+on+Electrical+Energy+Systems%22">International Transactions on Electrical Energy Systems</searchLink>. 3/7/2022, p1-21. 21p.
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  Data: <searchLink fieldCode="DE" term="%22Microgrids%22">Microgrids</searchLink><br /><searchLink fieldCode="DE" term="%22Reactive+power%22">Reactive power</searchLink><br /><searchLink fieldCode="DE" term="%22Knowledge+transfer%22">Knowledge transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Sharing%22">Sharing</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+inverters%22">Electric inverters</searchLink><br /><searchLink fieldCode="DE" term="%22Point+set+theory%22">Point set theory</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: This paper presents a new control scheme that permits flexible power sharing between parallel inverters connected to microgrid operating in an island mode. The presented scheme processes the information of active and reactive output powers from all inverters in a central controller that calculates the set points for each inverter, based on the desired ratios of their output powers. These necessitate adjustment of the inverters' terminal voltages (phase and magnitude) relative to the voltage at the common AC bus. The proposed power-sharing scheme uses a robust low bandwidth-based sharing communication to achieve precision and fast dynamic response, minimum circulating current between parallel inverters, and adapting to changes in line impedance, even under information transfer delays. The presented power-sharing scheme has been validated using MATLAB/Simulink simulation and experimental results obtained from a prototype of three three-phase parallel inverters connected to a number of loads. The results emphasize the superiority of the proposed topology performance under different loads (25% to 100%), line impedances, grid conditions, and communication delay. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of International Transactions on Electrical Energy Systems is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1155/2022/8319408
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      – Code: eng
        Text: English
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        PageCount: 21
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        Type: general
      – SubjectFull: Reactive power
        Type: general
      – SubjectFull: Knowledge transfer
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      – SubjectFull: Sharing
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      – SubjectFull: Electric inverters
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      – SubjectFull: Point set theory
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      – TitleFull: Semicentralized Power Sharing Scheme for Islanded Parallel-Connected Inverters.
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            NameFull: Ahmed, Khaled
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            – D: 07
              M: 03
              Text: 3/7/2022
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              Y: 2022
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