一种聚光光伏及温差发电一体化装置的研制

Development of a Concentrating Photovoltaic and Thermoelectric Power Generation Integrated Device

基于光生伏特和塞贝克效应设计了一种混合利用光电和热电的聚光光伏及温差发电一体化装置。该装置利用聚光透镜克服了太阳能能流密度低的缺陷,采用紫铜片对光伏电池进行热传递,余热能量通过温差发电装置实现二次发电,从而提高太阳能电池转换效率。为了测试温差发电对装置的影响,分别进行启动和不启动温差系统试验,发现输出电流基本相等,联合发电状态下,输出电压有约0.5 V明显提升。实验结果显示:当温差发电片和聚光光伏电池的负载选择合适的参数时,装置的输出功率提高5.26%,太阳能转换效率能提高了5.45%。

In this paper, an integrated device of unifying photovoltaic generation and thermoelectric power generation was designed. Based on the photovoltaic and Seebeck effect, this integrated device uses both photovoltaicity and thermoelectricity. This device overcomes the defect of low solar energy flow density by using concentrating lens, and adopts red copper sheet to conduct heat transfer for photovoltaic cell. The waste heat energy can realize secondary generation through temperature difference power generation device, so as to improve the conversion efficiency of solar cell. In order to test the influence of the temperature difference power generation on the device, the start and non-start temperature difference system tests were carried out, respectively, the output current was basically equal under the combined power generation state, and the output voltage was significantly increased by about 0.5 V. The experimental results show that when the load of the thermoelectric power generation chip and the concentrating photovoltaic cell are selected, the output power of the device is increased by 5.26%, and the solar energy conversion efficiency can be increased by 5.45%.