Month: September 2021

Research topic: Photovoltaic SystemOperation&Maintenance Why Can Simple Operation and Maintenance (O&M) Practices in Large-Scale Grid-Connected PV Power Plants Play a Key Role in Improving Its Energy Output? Hamid Iftikhar, Eduardo A. Sarquis Filho, P. J. da Costa BrancoMDPI Energies (2021)(Check article) Short Abstract: In this paper, a comparative analysis is done using real field data and simulation to assess the PV power plant underperformance and indicates the most important predictive maintenances actions. Issues in the tracking systems, inverters and combiner boxes were reported. In addition, an analysis of the O&M power plant reports was performed and compared to the best global practices. In this case, the adoption of predictive maintenance and automated plant diagnosis at the strings level were recommended. Additional content:

Research topic: Photovoltaic SystemModelling A complete framework for the simulation of photovoltaic arrays under mismatch conditions Eduardo A. Sarquis Filho, Carlos A. F. Fernandes, P. J. da Costa BrancoElsevier Solar Energy (2021)(Check article) Short Abstract: This paper introduces a complete a simulation framework capable of reproduce mismatch conditions at the cell level, including failures. The results were validated experimentally for mismatch conditions due to shading but also due to failures. The simulation framework is more suitable to emulate small arrays with few strings, being a helpful tool for the study of failure impacts on PV strings.