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oai:riubu.ubu.es:10259/46952024-05-14T11:27:11Zcom_10259_4393com_10259_5086com_10259_2604col_10259_4394

2018-01-11T08:30:58Z urn:hdl:10259/4695 Performance of grid-tied PV facilities: a case study based on real data Diez Mediavilla, Montserrat Dieste Velasco, Mª Isabel Rodríguez Amigo, María del Carmen García Calderón, Teófilo Alonso Tristán, Cristina PV facilities Performance Transformerless inverter Isolated inverter A new procedure is presented to analyse the performance of grid-tied PV facilities. It needs limited amounts of data that are easily sourced and is based on knowledge of the analysed system and its mode of operation. The procedure is applied, in a case study, to compare real PV production at two 100 kWp grid-connected PV installations. Located in the same geographical region, the installation of these two facilities followed the same construction criteria – PV panels, panel support system and wiring – and the facilities were exposed to the same atmospheric temperature and solar radiation. They differ with regard to their inverter technology: one facility uses an inverter with an integrated transformer system and the other uses a transformerless inverter. The results show that the transformerless inverter system performed better than the isolated system by a factor of 1.2%, which, in economic terms, represents more than 2000 €/year 2018-01-11T08:30:58Z 2018-01-11T08:30:58Z 2013-12 info:eu-repo/semantics/article 0196-8904 http://hdl.handle.net/10259/4695 10.1016/j.enconman.2013.08.035 eng Energy Conversion and Management. 2013, V. 76, p. 893-898 https://doi.org/10.1016/j.enconman.2013.08.035 info:eu-repo/grantAgreement/MINECO/ENE2011-27511 info:eu-repo/grantAgreement/JCyL/BU358A12-2 http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 International Elsevier