76054 20191212100700.0 doi 10.1016/j.jpowsour.2017.12.058 sideral 103803 ART-2018-103803 eng (orcid)0000-0003-0198-5094 Sanz-Gorrachategui, Iván New battery model considering thermal transport and partial charge stationary effects in photovoltaic off-grid applications 2018 Access copy available to the general public Unrestricted The optimization of the battery pack in an off-grid Photovoltaic application must consider the minimum sizing that assures the availability of the system under the worst environmental conditions. Thus, it is necessary to predict the evolution of the state of charge of the battery under incomplete daily charging and discharging processes and fluctuating temperatures over day-night cycles. Much of previous development work has been carried out in order to model the short term evolution of battery variables. Many works focus on the on-line parameter estimation of available charge, using standard or advanced estimators, but they are not focused on the development of a model with predictive capabilities. Moreover, normally stable environmental conditions and standard charge-discharge patterns are considered. As the actual cycle-patterns differ from the manufacturer's tests, batteries fail to perform as expected. This paper proposes a novel methodology to model these issues, with predictive capabilities to estimate the remaining charge in a battery after several solar cycles. A new non-linear state space model is proposed as a basis, and the methodology to feed and train the model is introduced. The new methodology is validated using experimental data, providing only 5% of error at higher temperatures than the nominal one. info:eu-repo/grantAgreement/ES/MINECO/RTC-2015-3358-5 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 7.467 2018 CHEMISTRY, PHYSICAL 26 / 148 = 0.176 2018 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 32 / 293 = 0.109 2018 Q1 T1 ENERGY & FUELS 11 / 103 = 0.107 2018 Q1 T1 ELECTROCHEMISTRY 3 / 26 = 0.115 2018 Q1 T1 1.947 2018 Electrical and Electronic Engineering 2018 Q1 Renewable Energy, Sustainability and the Environment 2018 Q1 Physical and Theoretical Chemistry 2018 Q1 Energy Engineering and Power Technology 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0001-9334-4870 Bernal, Carlos Universidad de Zaragoza (orcid)0000-0002-4834-940X Oyarbide, Estanis Universidad de Zaragoza Garayalde, Erik Aizpuru, Iosu Canales, Jose María (orcid)0000-0001-5664-7063 Bono-Nuez, Antonio Universidad de Zaragoza 5008 785 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Tecnología Electrónica 378 (2018), 311-321 J. power sources JOURNAL OF POWER SOURCES 0378-7753 1004033 http://zaguan.unizar.es/record/76054/files/texto_completo.pdf Postprint 61974 http://zaguan.unizar.es/record/76054/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:76054 articulos driver 2019-12-12-10:04:00 ARTICLE