Bifacial Cell Modules: The software that simulates the losses and gains in the production due to the integration of cell to module (CTM)
The Fraunhofer Institute has launched a new version of SmartCalc.CTM software, which is used for computer-aided design and the creation of virtual prototypes during the development of modules.
News of use in bifacial cells modules.
The new version includes bifacial modules with arbitrary operating conditions. Although it remains, flexibility and ease of use, the configuration of the module can be loaded from a database or directly edited in a graphical user interface.
Not only do they allow bifacial solar cells, they also include a more detailed analysis of the posterior sheets and their impact on the power of the module.
The angle of incidence distribution and the intensity of the incident light allow to evaluate the behavior of the photovoltaic module under test conditions.
How does it work?
The determination of the operating temperatures within the solar modules is fundamental in the evaluation of new concepts of modules. A new thermal model has been implemented that allows the calculation of module temperatures according to the operating conditions and their configuration.
Some modules may have a disadvantage in standard tests, but under realistic environmental conditions they can improve and exceed expectations. The new version of SmartCalc.CTM can now consider the thermal effects in the efficiency analysis.
The impact of the properties of the thermal material and the design of the module can be evaluated to analyze its production. The electric models have been expanded to adapt to the increase in flexibility in operating conditions, especially in solar cells and cellular interconnections. Now they are modeled more precisely under conditions of low light, high temperature and new concepts of interconnection. This makes it possible to evaluate the losses, both of the cell and the module, in terms of maximum power loss.
What do we get?
With the calculation of the temperature of the cell, the results are much closer to reality. Bifocality has been implemented at the precise moment, since it is spreading rapidly and it is important to have a precise comparison of the technologies. All these new functions allow the evaluation of a wider range of module types, interconnection and cellular technologies. Therefore, they represent an important tool for further optimization.
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