Changing photovoltaic array interconnections to reduce mismatch losses: a case study

Partial shading of photovoltaic (PV) modules can affect a wide variety of plants ranging from utility-sized solar trackers to residential building-integrated PV, resulting in lower energy production yields. The traditional series-parallel interconnection scheme of solar arrays is sensitive to dispar...

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Bibliographic Details
Main Authors: Picault, D, Raison, B, Bacha, S, Aguilera, J, De La Casa, J
Format: Conference Proceeding
Language:English
Subjects:
Circuit topology
Europe
Integrated circuit interconnections
Inverters
Laboratories
Photovoltaic systems
Power generation
Production
Shadow mapping
Solar power generation
Online Access:Request full text
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Summary:Partial shading of photovoltaic (PV) modules can affect a wide variety of plants ranging from utility-sized solar trackers to residential building-integrated PV, resulting in lower energy production yields. The traditional series-parallel interconnection scheme of solar arrays is sensitive to disparate solar irradiation levels on modules of the plant. By using alternative topologies, the effects of unavoidable partial shade can be decreased. In this paper, module interconnections inside a PV array are modified to reduce mismatch losses caused by partial shading. Results from a measurement campaign on a 2.2kW plant carried out on Jaén University's campus using various interconnection schemes are presented.
DOI:10.1109/EEEIC.2010.5490027