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Local secondary control for inverter-based islanded microgrids with accurate active-power sharing under high load conditions

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10.1109/TIE.2018.2844846
 
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Castilla Fernández, MiguelMés informacióMés informacióMés informació
Camacho Santiago, AntonioMés informacióMés informacióMés informació
Miret Tomàs, JaumeMés informacióMés informacióMés informació
Velasco García, ManelMés informacióMés informacióMés informació
Martí Colom, PauMés informacióMés informacióMés informació
Document typeArticle
Defense date2018-06-13
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
Local secondary control has been successfully used to regulate the frequency of inverterbased islanded microgrids without using communications. In this scenario, noticeable steady-state deviations have been observed in active power sharing caused by the inherent clock drift of the digital processors that implement each inverter local control. This paper presents a control scheme that performs frequency regulation and improves the active power sharing under high load conditions, thus alleviating the impact of clock drifts in this situation. The study introduces a theoretical analysis that quantifies the steady-state deviations in active power sharing. It also includes a design procedure for the control parameters based on static and dynamic specifications. Experimental tests validate the expected features of the proposed control. The experimental setup is based on a laboratory microgrid equipped with three independent digital signal processors with different clock drifts.
CitationCastilla, M., Camacho, A., Miret, J., Velasco, M., Marti, P. Local secondary control for inverter-based islanded microgrids with accurate active-power sharing under high load conditions. "IEEE transactions on industrial electronics", 13 Juny 2018, p. 1. 
URIhttp://hdl.handle.net/2117/119032
DOI10.1109/TIE.2018.2844846
ISSN0278-0046
Publisher versionhttps://ieeexplore.ieee.org/document/8384292/
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  • Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial - Articles de revista [1.278]
  • Departament d'Enginyeria Electrònica - Articles de revista [1.608]
  • SEPIC - Sistemes Electrònics de Potència i de Control - Articles de revista [112]
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