Abstract
The high-concentration photovoltaic (HCPV) system uses high-magnification condenser lens to focus sunlight on the surfaces of group III–V photovoltaic (PV) cells. The PV cells can convert sunlight to electricity effectively. However, since the HCPV system includes PV cells and concentrating equipment, its components are more than those of general photovoltaic systems and are more prone to high cost and malfunctions. Bypass diodes are installed in the HCPV modules to prevent power consumption when they are shaded or damaged. The main purpose of this paper is to investigate the influence of bypass diodes on the HCPV modules and look for an optimal bypass diode configuration. In this research, the authors cooperated with Arima EcoEnergy Technologies Corp. whose HCPV products were used as references for modeling the simulation system. MATLAB/Simulink was used as the modeling tool to establish a HCPV simulation system using the built-in PV cell model. Simulations were implemented under different shaded conditions and investigated the effects of power generations under different bypass diode configurations. According to the simulation results, the configuration of 1 bypass diode per 2 PV cells is the best in general and random shaded conditions; however, the configuration of 1 bypass diode per 3 and 6 PV cells are better for some special conditions. The simulation results in this paper can be provided to HCPV companies as references, while designing products in the future, and should be helpful for improving performance and cost of the products.
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Yu, TC., Hung, Y.T., Lin, YB., Chen, CH., Liou, YC. (2016). Optimal Configuration of Bypass Diodes for a High-Concentration Photovoltaic System. In: Huang, B., Yao, Y. (eds) Proceedings of the 5th International Conference on Electrical Engineering and Automatic Control. Lecture Notes in Electrical Engineering, vol 367. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-48768-6_94
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DOI: https://doi.org/10.1007/978-3-662-48768-6_94
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