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Title
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Decentralized Frequency Control of AC Microgrids: an Estimation-Based Consensus Approach
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Type
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JournalPaper
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Keywords
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Active power estimation , communication free control , consensus protocol , frequency regulation , microgrid , secondary control
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Abstract
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In this paper, a decentralized secondary control (SC) based on the active power estimation (APE) is presented. This achievement is realized by employing the unique feature of frequency as a global variable in autonomous AC microgrids (MGs). The APE is merely based on the droop coefficient of P – ω characteristics. The decentralized SC, utilizing a consensus protocol, restores the MG frequency to the nominal value while maintaining accurate power-sharing of the droop mechanism. The consensus protocol is estimation-based and does not require communication infrastructure. In addition to the proposition of stability analysis method, experimental results with four distributed generation units (DGUs) also verify the effectiveness of the proposed SC structure.
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Researchers
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Frede Blaabjerg (Not In First Six Researchers), Hassan Bevrani (Not In First Six Researchers), Mohammad Fathi (Not In First Six Researchers), Qobad Shafiee (Fifth Researcher), Tomislav Dragicevic (Fourth Researcher), Mobin Naderi (Third Researcher), Rasool Heydari (Second Researcher), Yusef Khayat (First Researcher)
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