Abstract
The uniformity of the receiver surface energy flux density in the reflective high-power concentration photovoltaic system can affect the photoelectric conversion efficiency of the photovoltaic cell, and even cause the “hot spot” to damage it. In this paper, the plane mirror array algorithm is used to design a reflective high-power condenser, and TRACEPRO is used to numerical simulation study the uniformity of receiver surface energy flux density. The results show that the uniformity is greater than 99%, the experimental result (96.907%) is in agreement with the simulation results. In addition, the relationships of the effective area of the photoelectric conversion, the average irradiance, the maximum irradiance and the focal length are studied, and in the case of theoretical concentration ratio C is unchanged, the effective area of the photoelectric conversion is unchanged, the relationship of the maximum irradiance Emax with the focal length f is Emax=a+b ln(f-c), and the relationship of the average irradiance Eave with focal length f is also Eave=a+b ln(f-c).
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