Electrical PV Array Reconfiguration Strategy for Energy Extraction Improvement in Grid-Connected PV Systems

被引:438
作者
Velasco-Quesada, Guillermo [1 ]
Guinjoan-Gispert, Francisco [2 ]
Pique-Lopez, Robert [1 ]
Roman-Lumbreras, Manuel
Conesa-Roca, Alfonso [1 ]
机构
[1] Univ Politecn Cataluna, Dept Ingn Elect, Escuela Univ Ingn Tecn Ind Barcelona, Barcelona 08036, Spain
[2] Univ Politecn Cataluna, Dept Ingn Elect, Escuela Tecn Super Ingenieros Telecomunicac Barce, ES-08034 Barcelona, Spain
关键词
Electrical array reconfiguration (EAR); grid-connected photovoltaic (PV) systems; reconfigurable PV systems; MODULE;
D O I
10.1109/TIE.2009.2024664
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper applies a dynamical electrical array reconfiguration (EAR) strategy on the photovoltaic (PV) generator of a grid-connected PV system based on a plant-oriented configuration, in order to improve its energy production when the operating conditions of the solar panels are different. The EAR strategy is carried out by inserting a controllable switching matrix between the PV generator and the central inverter, which allows the electrical reconnection of the available PV modules. As a result, the PV system exhibits a self-capacity for real-time adaptation to the PV generator external operating conditions and improves the energy extraction of the system. Experimental results are provided to validate the proposed approach.
引用
收藏
页码:4319 / 4331
页数:13
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