Research Of Concentrating Solar PV System

Solar photovoltaic power technology is the most promising ways of solar energy utilization. It can increase the per unit area of solar cells power output using concentrator. To a certain extent, concentrating technology can overcome the sun energy dispersive and has the very good application prospects. Using cheap materials manufacturing concentrator, it will gather sunlight to small area of solar cell. Therefore, it greatly reduces expensive solar cell's material consumption and cost of photovoltaic energy system. The systems of concentrating solar power generation it was composed by condenser, radiator parts, high efficiency solar cells and tracking devices.This paper mainly discusses double spherical and parabolic mirror surface column of parabolic dish concentrator. Double spherical and parabolic column camber reflected by a quadratic convergent system secondary mirror, mirror. The light path is: first reflector focus sunshine to secondary reflector, secondary reflector focused sunshine further.The principle of solar cells, increasing light intensity can improve output current and increase the output voltage. In order to verify the effect of parabolic dish concentrator, polysilicon output characteristics measuring experiment carry out in laboratory and outdoor. The concentrated photovoltaic (CPV) Systems were composed of poly-silicon cells and the first concentrators which experiments were carried out at room temperature. Comparing to the convenient (non-concentrated) PV systems, the CPV systems output power increased 3.1 and 2.5 times. The results shown that solar cells output power could increased by using the Secondary Reflected Concentrators. It has a good prospect of application because it can overcome the dispersion of sunlight to a certain extent.After completing the work of design concentrating solar component, a single-axis tracking devices was designed, it enhanced practicality of condenser system. Single-axis tracking devices can extend the solar cell solar radiation and improve its duration turbine.