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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Discretized model for partially shaded PV arrays composed of PV panels with overlapping bypass diodes
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
نویسندگان
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