کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6478829 1428106 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Linear equivalent models at the maximum power point based on variable weather parameters for photovoltaic cell
ترجمه فارسی عنوان
مدل معادل خطی در نقطه حداکثر قدرت بر اساس پارامترهای آب و هوایی متغیر برای سلول فوتوولتائیک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
چکیده انگلیسی


- The voltage-current characteristic of PV cell at the MPP of PV system has been linearized.
- Two linear equivalent models of PV cell have been proposed.
- The relationships between linear model parameters and VWP have been found.

In order to sweep completely the obstacle to the whole linearization of photovoltaic (PV) system with non-linear PV cell, in this paper, the voltage-current characteristic of PV cell at the maximum power point (MPP) is linearized and two linear equivalent models including Thevenin equivalent model and Norton equivalent model are proposed. On the basis of this work, the whole linearization of PV system is workable and reasonable, and then the conventional linear theories or laws can be used to study PV system conveniently. Meanwhile, in this work, the direct relationships between three linear model parameters and variable weather parameters (VWP) were found, which ensures the strong adaptation of these proposed models to the varying weather conditions. Finally, some simulation experiments verify that these proposed models are feasible and available in practical application, illustrate that the characteristics of three linear model parameters are influenced by varying weather conditions and unaffected by varying load, and show that PV system using the proposed Thevenin equivalent model has the same maximum power point tacking (MPPT) stead-state performance and similar MPPT transient-state performance with the conventional four-parameter model under fast varying weather conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Energy - Volume 182, 15 November 2016, Pages 94-104
نویسندگان
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