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Title:
 
Reconfigurable Topologies for Smarter PV Modules: Simulation, Evaluation and Implementation
 
Abstract/Summary:
 
In a reconfigurable PV panel, the connections between groups of cells (cell-strings) can be rearranged in order to increase the overall power output under non-uniform conditions. In a traditional PV panel, current mismatch between the series-connected cells (due to irradiation differences of differential aging) limits the generated power output by either reducing the overall current or by bypassing the substring containing the limiting cells. A reconfigurable panel can respond to such a situation by changing the connections to a more favorable configuration, allowing the majority of the cells to operate at their MPP. This paper elaborates on such a topology and its components (high current switches, wiring). To get a clearer picture of the added value of such a reconfigurable panel, a detailed energy yield analysis was performed which includes the performance of those added components. The simulation model used for this analysis is calibrated with extensive measurement results. A comparison of that model and corresponding measurements will be discussed. The analysis shows that a reconfigurable PV panel can outperform the traditional panels when suboptimal conditions are predominant, as encountered for instance in BIPV. As a demonstration of the principle, a small-scale prototype was created and will be presented in this paper.
 
 
Author(s):
 
P. Bauwens, J. Govaerts, M. Baka, F. Catthoor, K. Baert, G. Van den Broeck, H. Goverde, D. Anagnostos, J. Doutreloigne, J. Poortmans
 
Keywords:
 
PV System, Shading, Energy Performance, Configurable Topology
 
Topic:
 
New Materials and Concepts for Solar Cells and Modules
Subtopic: New Materials and Concepts for Modules
Event: 32nd European Photovoltaic Solar Energy Conference and Exhibition
Session: 1BO.12.6
 
Pages:
 
61 - 65
ISBN: 3-936338-41-8
Paper DOI: 10.4229/EUPVSEC20162016-1BO.12.6
 
Price:
 
 
0,00 EUR
 
Document(s): paper, presentation