کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5450856 | 1513061 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Discretized model for partially shaded PV arrays composed of PV panels with overlapping bypass diodes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
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چکیده انگلیسی
There are two typical configurations of bypass diodes used in PV-cell connection: nonoverlapped and overlapped. This paper presents a generalized method for electrical modeling of PV panels with overlapping bypass diodes to analyze nonuniform irradiance situations. The proposed model is based on piecewise polynomial functions, which use a discrete set of data to model PV cells under several shading situations and bypass diode connections. Analyzing electrical connections, the remaining PV array elements are modeled. In the case of a single PV panel, a Newton-Raphson method is used to derive its piecewise polynomial functions. The proposed method is used to provide a complete analysis of current, voltage, and power in PV arrays under partial shading conditions. From the results, it was verified that some elements of a PV array can act as loads under nonuniform irradiance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 157, 15 November 2017, Pages 103-115
Journal: Solar Energy - Volume 157, 15 November 2017, Pages 103-115
نویسندگان
Eloy DÃaz-Dorado, José Cidrás, Camilo Carrillo,