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Adaptive Volt-Var Control Algorithm to Grid Strength and PV Inverter Characteristics

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10.3390/su13084459
 
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Cantero, Toni
Colet Subirachs, Alba
Canals Casals, LlucMés informacióMés informacióMés informació
Corchero García, CristinaMés informacióMés informació
Domínguez García, José LuisMés informació
Álvarez de Sotomayor, Amelia
Martin, Williams
Stauffer, Yves
Alet, Pìère-Jean
Document typeArticle
Defense date2021-04-16
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
ProjectSABINA - SmArt BI-directional multi eNergy gAteway (EC-H2020-731211)
Abstract
The high-penetration of Distributed Energy Resources (DER) in low voltage distribution grids, mainly photovoltaics (PV), might lead to overvoltage in the point of common coupling, thus, limiting the entrance of renewable sources to fulfill the requirements from the network operator. Volt-var is a common control function for DER power converters that is used to enhance the stability and reliability of the voltage in the distribution system. In this study, a centralized algorithm provides local volt-var control parameters to each PV inverter, which are based on the electrical grid characteristics. Because accurate information of grid characteristics is typically not available, the parametrization of the electrical grid is done using a local power meter data and a voltage sensitivity matrix. The algorithm has different optimization modes that take into account the minimization of voltage deviation and line current. To validate the effectiveness of the algorithm and its deployment in a real infrastructure, the solution has been tested in an experimental setup with PV emulators under laboratory conditions. The volt-var control algorithm successfully adapted its parameters based on grid topology and PV inverter characteristics, achieving a voltage reduction of up to 25% of the allowed voltage deviation.
CitationCantero, T. [et al.]. Adaptive Volt-Var Control Algorithm to Grid Strength and PV Inverter Characteristics. "Sustainability", 16 Abril 2021, vol. 13, núm. 8, p. 4459/1-4459/17. 
URIhttp://hdl.handle.net/2117/345810
DOI10.3390/su13084459
ISSN2071-1050
Publisher versionhttps://www.mdpi.com/2071-1050/13/8/4459
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  • Departament d'Enginyeria de Projectes i de la Construcció - Articles de revista [305]
  • Departament d'Estadística i Investigació Operativa - Articles de revista [628]
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