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Imbalance-voltage mitigation in an inverter-based distributed generation system using a minimum current-based control strategy Ghahderijani, Mohammad Moradi Camacho Santiago, Antonio Moreira, Carlos Castilla Fernández, Miguel García de Vicuña Muñoz de la Nava, José Luis Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica Universitat Politècnica de Catalunya. SEPIC - Sistemes Electrònics de Potència i de Control Àrees temàtiques de la UPC::Enginyeria elèctrica::Distribució d’energia elèctrica Electric power distribution Inverter-based distributed generation Voltage imbalance Voltage support Energia elèctrica -- Distribució ©2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Voltage imbalances are one of the most severe challenges in electrical networks, which negatively affect their loads and other connected equipment. This paper proposes a voltage support control strategy to mitigate the voltage imbalance in inverter-based low voltage distribution networks. The control scheme is derived taking in mind the following control objectives: a) to increase the positive sequence voltage as much as possible, b) to decrease the negative sequence voltage as much as possible, c) to inject the power generated by the primary source, and d) to minimize the output current of the inverter. The innovative contribution of the proposed solution is based on the design of a control algorithm that meets the aforementioned objectives without resorting to communications with other grid components. The theoretical results are experimentally validated by selected tests on a laboratory setup with X/R ratio close to one. This work was supported in part by the Ministry of Economy and Competitiveness of Spain and in part by the European Regional Development Fund under Project RTI2018-100732-B-C22. Peer Reviewed Postprint (author's final draft) 2020-06 Article Ghahderijani, M.M. [et al.]. Imbalance-voltage mitigation in an inverter-based distributed generation system using a minimum current-based control strategy. "IEEE transactions on power delivery", Juny 2020, vol. 35, núm. 3, p. 1399-1409. 0885-8977 https://hdl.handle.net/2117/331101 10.1109/TPWRD.2019.2945472 eng https://ieeexplore.ieee.org/document/8859393 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-100732-B-C22/ES/GESTION Y CONTROL DE MICRORREDES CON VEHICULOS ELECTRICOS Y BATERIAS DE RESPALDO/ Open Access 11 p. application/pdf Institute of Electrical and Electronics Engineers (IEEE)