6533b852fe1ef96bd12aade2

RESEARCH PRODUCT

Reconfigurable electrical interconnection strategies for photovoltaic arrays: A review

Pietro RomanoVincenzo Li VigniDamiano La MannaEleonora Riva SanseverinoVincenzo Di Dio

subject

InterconnectionEngineeringRenewable Energy Sustainability and the Environmentbusiness.industryReconfiguration algorithmPhotovoltaic systemMPPTPhotovoltaic arraysControl reconfigurationSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciElectrical mismatchMaximum power point trackingReconfigurable photovoltaic arrayPower (physics)Partial shadingSettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-IND/31 - ElettrotecnicaHardware complexityElectronic engineeringTCTPower outputSwitching matrixbusiness

description

Non-uniform irradiance significantly decreases the power delivered by solar photovoltaic arrays. A promising technique for compensating these power losses relies on dynamically reconfiguring the electrical connections between photovoltaic modules. This paper presents the current state-of-the-art strategies for photovoltaic array reconfiguration in order to increase the power output under partial shading and mismatch conditions. The different approaches have been compared in terms of effectiveness of the control algorithms, monitored electrical and environmental variables, overall hardware complexity and specific features of each solution. Finally, the most challenging aspects of the reconfiguration strategy are identified and further discussed.

10.1016/j.rser.2014.01.070http://hdl.handle.net/10447/90483