Comparative analysis of fixed and sun tracking low power PV systems considering energy consumption

被引：115

作者：

Lazaroiu, George Cristian ^{[1
]}

Longo, Michela ^{[2
]}

Roscia, Mariacristina ^{[3
]}

Pagano, Mario ^{[4
]}

机构：

[1] Univ Politehn Bucuresti, Dept Power Syst, Bucharest 060042, Romania

[2] Politecn Milan, Dept Energy, I-20156 Milan, Italy

[3] Univ Bergamo, Dipartimento Progettaz & Tecnol, I-24044 Bergamo, Italy

[4] Univ Naples Federico II, Dipartimento Ingn Elettr & Tecnol Informaz, I-80125 Naples, Italy

来源：

ENERGY CONVERSION AND MANAGEMENT | 2015年 / 92卷

关键词：

Photovoltaic system; Sun tracking; Lab prototype; Energy analysis;

D O I：

10.1016/j.enconman.2014.12.046

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Photovoltaic technology allows to directly convert solar energy into electrical energy with clear advantages: no environmental impact during operation, reliability and durability of the systems, reduced operating costs and maintenance, ability to both supply remote customers and simply connect to the electrical network. This paper evaluates the performance of two photovoltaic systems: one fixed and one equipped with a sun tracker. The objective of this research is to analyze the increase of daily produced energy by using the sun tracking system. The analysis accounts also the energy consumption of the sun tracker. An analytical approach is proposed. To validate the results through experimental tests, two alternative low power PV systems were built. Each system consists of a PV source, a MPPT (Maximum Power Point Tracker) power converter and a 12 V-40 A h electrochemical battery, which is used as electric load. The sun tracker system evidenced an important growth of power production during morning and evening. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：143 / 148

页数：6

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