DBPapers
DOI: 10.5593/SGEM2014/B41/S17.029

EVALUATION OF PV SYSTEMS DEGRADATION PERFORMANCES

F. Dragomir, O. Dragomir, N. Arghira, V. Calofir
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-15-5 / ISSN 1314-2704, June 19-25, 2014, Book 4, Vol. 1, 221-228 pp

ABSTRACT
This article proposes is a study on the performance of photovoltaic (PV) panels (SNMM135 from SUNEL) after 15 years of use. The proposed system consists of 11 photovoltaic (PV) panels conected in series, an invertor Sunny Boy 2100TL, a Sunny SensorBox with temperature sensor and irradiance sensor, and Sunny WebBox. The energy produced by the PV panels is taken directly from the inverter Sunny Boy 2100TL. Thus we have the voltage and current of the PV system. The temperature cell and radiation are obtained using Sunny SensorBox. Also, in this work we performed a simulation of I-V characteristic and P-V characteristic of PV system. This haracteristics are influenced by two factors, the solar radiation and the cell temperature. Simulation will be given the radiation and temperature cell values acquired. Thus, a comparison was made between the real system and simulation for current and active power variations curves.

Keywords: Renewable sources, monitoring, energy, simulation, PV systems,
degradation, performances