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Open AccessFeature PaperArticle

A Comprehensive Inverter-BESS Primary Control for AC Microgrids

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Grid Edge Solutions ABB S.p.A., 16145 Genova, Italy
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Grid Edge Solutions ABB Australia Pty Ltd.
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Department of Electrical, Electronic, Telecommunication Engineering and Naval Architecture, University of Genoa, 16145 Genova, Italy
*
Author to whom correspondence should be addressed.
Energies 2019, 12(20), 3810; https://doi.org/10.3390/en12203810
Received: 26 July 2019 / Revised: 25 September 2019 / Accepted: 1 October 2019 / Published: 9 October 2019
(This article belongs to the Special Issue Optimal Control of Hybrid Systems and Renewable Energies)
This paper proposes the design of a comprehensive inverter-BESS primary control capable of providing satisfactory performances both in grid-connected and islanded configurations as required by international standards and grid codes, such as IEEE Std. 1547. Such control guarantees smooth and fast dynamic behavior of the converter in islanded configuration as well as fast power control and voltage-frequency support in grid-connected mode. The performances of the proposed primary control are assessed by means of EMT (ElectroMagnetic Transients) simulations in the dedicated software DIgSILENT PowerFactory® (Germany, Gomaringen) . The simulation results show that the proposed BESS (Battery Energy Storage System) primary control is able to regulate frequency and voltage in Grid-Forming mode independently of the number of paralleled generators. This is achieved adopting a virtual generator technique which presents several advantages compared to the conventional one. Moreover, the proposed control can be switched to Grid-Support mode in order to provide fast control actions to allow frequency and voltage support as well as power control following the reference signals from the secondary level. View Full-Text
Keywords: primary control; BESS; microgrid; Grid Forming; Grid Support; Inverter Control; Grid Support; DIgSILENT PowerFactory; EMT simulations primary control; BESS; microgrid; Grid Forming; Grid Support; Inverter Control; Grid Support; DIgSILENT PowerFactory; EMT simulations
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MDPI and ACS Style

Fusero, M.; Tuckey, A.; Rosini, A.; Serra, P.; Procopio, R.; Bonfiglio, A. A Comprehensive Inverter-BESS Primary Control for AC Microgrids. Energies 2019, 12, 3810.

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