Soto Cabria, AdriánBerrueta Irigoyen, AlbertoSanchis Gúrpide, PabloUrsúa Rubio, Alfredo2020-04-172020-08-012019A. Soto, A. Berrueta, P. Sanchis and A. Ursúa, 'Influence of renewable power fluctuations on the lifetime prediction of lithium-ion batteries in a microgrid environment,' 2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), Genova, Italy, 2019, pp. 1-6.978-1-7281-0653-310.1109/EEEIC.2019.8783260https://academica-e.unavarra.es/handle/2454/36744This contribution analyses lifetime estimation errors due to the effect of power fluctuations in lithium-ion batteries connected to microgrids when different time steps are used for the calculations. Usually, not every second data are available or the computational cost is excessively high. Those facts result in the use of larger time steps. However, the increase of the time steps may turn out in too optimistic predictions. Data from a real microgrid make it possible to optimize calculation times while keeping low errors. The results show that when 1 minute time step is set, the computation time is reduced by 14.4 times while the lifetime overstatement is only 3.5-5.2% higher, depending on the aging model.6 p.application/pdfeng© 2019 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 work.BatteryElectrical energy storageLithium ion cellMicro-gridPower fluctuationsRenewable energyinfo:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccessAcceso abierto / Sarbide irekia