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An enhancing fault current limitation hybrid droop/V-f control for grid-tied four-wire inverters in AC microgrids

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2018_10_APPSCI_An Enhancing Fault Current Limitation Hybrid DroopV-f Control for Grid-Tied Four-Wire Inverters in AC Microgrids.pdf (3,116Mb)
 
10.3390/app8101725
 
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hdl:2117/125064

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Heredero Peris, DanielMés informacióMés informacióMés informació
Chillón Antón, CristianMés informació
Pagès Giménez, MarcMés informacióMés informació
Montesinos Miracle, DanielMés informacióMés informacióMés informació
Santamaria, Mikel
Rivas, David
Aguado, Monica
Document typeArticle
Defense date2018-09-22
PublisherMultidisciplinary Digital Publishing Institute
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
This work is protected by the corresponding intellectual and industrial property rights. Except where otherwise noted, its contents are licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
Microgrid integration and fault protection in complex network scenarios is a coming challenge to be faced with new strategies and solutions. In this context of increasing complexity, this paper describes two specific overload control strategies for four-wire inverters integrated in low voltage four-wire alternating current (AC) microgrids. The control of grid-tied microgrid inverters has been widely studied in the past and mainly focused on the use of droop control, which hugely constrains the time response during grid-disconnected operation. Taking into account the previous knowledge and experience about this subject, the main contribution of these two proposals regards providing fault current limitation in both operation modes, over-load capability skills in grid-connected operation and sinusoidal short-circuit proof in grid-disconnected operation. In the complex operation scenarios mentioned above, a hybrid combination of AC droop control based on dynamic phasors with varying virtual resistance, and voltage/frequency master voltage control for grid-(dis)connected operation modes are adopted as the mechanism to enhance time response. The two proposals described in the present document are validated by means of simulations using Matlab/Simulink and real experimental results obtained from CENER (The National Renewable Energy Centre) experimental ATENEA four-wire AC microgrid, obtaining time responses in the order of two-three grid cycles for all cases.
CitationHeredero-Peris, D., Chillon, C., Pagès-Giménez, M., Montesinos-Miracle, D., Santamaria, M., Rivas, D., Aguado, M. An enhancing fault current limitation hybrid droop/V-f control for grid-tied four-wire inverters in AC microgrids. "Applied sciences", 22 Setembre 2018, vol. 8, núm. 10, p. 1-22. 
URIhttp://hdl.handle.net/2117/125064
DOI10.3390/app8101725
ISSN2076-3417
Publisher versionhttps://www.mdpi.com/2076-3417/8/10/1725
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  • CITCEA - Centre d'Innovació Tecnològica en Convertidors Estàtics i Accionaments - Articles de revista [226]
  • Departament d'Enginyeria Elèctrica - Articles de revista [974]
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