Seasonal Variation of Internal Parameters of Amorphous Silicon (a-Si) Thin Film Photovoltaic Modules

Yıl 2012, Cilt: 2 Sayı: 4, 549 - 555, 01.12.2012

Rustu Eke Sener Oktik

Öz

Operational parameters of KA58 Amorphous Silicon (a-Si) thin film photovoltaic module is investigated as a function of solar irradiation and atmospheric conditions using current-voltage curves taken for a year from April to May  at Muğla University PV Outdoor Test Site. Single diode model is proposed to explain the current-voltage curves of thin film solar cells and modules. It is observed that the operational parameters of KA58 a-Si photovoltaic module exhibit significantly different response to the changes in solar radiation and weather conditions in a period of 12 months. Correlations between internal parameters, namely RS, RP, IL, IO and a (modified ideality factor) of module and solar irradiation and atmospheric data is investigated.

Anahtar Kelimeler

Outdoor measurements of solar cells and modules, amorphous silicon module performance, series resistance, parallel resistance, single diode model