Different Techniques to Mitigate Partial Shading in Photovoltaic Panels

被引:15
作者
Alves, Tiago [1 ]
N. Torres, Joao Paulo [1 ,2 ,3 ]
Marques Lameirinhas, Ricardo A. [1 ,2 ]
F. Fernandes, Carlos A. [1 ,2 ]
机构
[1] Inst Super Tecn, Dept Elect & Comp Engn, P-1049001 Lisbon, Portugal
[2] Inst Telecomunicacoes, P-1049001 Lisbon, Portugal
[3] Acad Mil, Av Conde Castro Guimaraes, P-2720113 Amadora, Portugal
关键词
optoelectronic devices; photovoltaic technology; shading mitigation;
D O I
10.3390/en14133863
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The effect of partial shading in photovoltaic (PV) panels is one of the biggest problems regarding power losses in PV systems. When the irradiance pattern throughout a PV panel is inequal, some cells with the possibility of higher power production will produce less and start to deteriorate. The objective of this research work is to present, test and discuss different techniques to help mitigate partial shading in PV panels, observing and commenting the advantages and disadvantages for different PV technologies under different operating conditions. The motivation is to contribute with research, simulation, and experimental work. Several state-of-the-artsolutions to the problem will be presented: different topologies in the interconnection of the panels; different PV system architectures, and also introducing new solution hypotheses, such as different cell interconnections topologies. Alongside, benefits and limitations will be discussed. To obtain actual results, the simulation work was conducted by creating MATLAB/Simulink models for each different technique tested, all centered around the 1M5P PV cell model. The several techniques tested will also take into account different patterns and sizes of partial shading, different PV panel technologies, different values of source irradiation, and different PV array sizes. The results will be discussed and validated by experimental tests.
引用
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页数:25
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