二级复合抛物面聚光器(CPC)性能仿真及光伏发电实验研究

摘要

The secondary compound parabolic concentrator (CPC) overlapped with two compound parabolic concentrators.In order to improve the integrative performance of secondary CPC, the paper analyzed the three key parameters which influence on CPC's performance, with orthogonal tests, variance analysis and level combination, and confirmed the optimizing constructive shape of secondary CPC. The 3-D model of secondary CPC was established with Pro/E and analysis of performance simulation was done with Tracepro software. The experimental tests for secondary CPC simulation set were carried out with xenon lamp as the light source. And results showed that concentrator effective concentrator ratio was about 2.5 and acceptance angle was about 25°, as structural shape of secondary CPC was 12°/35°-22°. Compared with non-concentrator photovoltaic power system, integral power value of PV generation composed of secondary CPC increased 246％ on summer solstice, 252％ both on spring equinox and autumnal equinox and 400％ on winter solstice. [ Ch,6 fig. 2 tab. 11 ref. ]%构造出一个由2个复合抛物面聚光器(CPC)叠置组成的二级复合抛物面聚光器(CPC),为改善二级抛物面聚光器(CPC)的整体性能,对影响聚光器性能的3个关键参数,采用正交试验设计、方差分析和水平搭配的方法进行分析,并确定了二级CPC的优化结构形状.运用PRO-E建立二级CPC三维模型,并导入Tracepro软件进行性能仿真分析.用氙灯作为模拟太阳光源,对一组二级CPC模型装置进行了实验测试,仿真和实验的结果表明:二级CPC的结构形状为12°/35°~22°时,聚光器有效聚光比约为2.5,有效接收角为25°左右;由该聚光器构成的聚光光伏发电系统和太阳能非聚光光伏发电系统相比,功率积分值在夏至日提升了246%,春秋分提升了252%,冬至日提升了400%.