Conversion and Testing of a Solar Thermal Parabolic Trough Collector for CPV-T Application
Conversion and Testing of a Solar Thermal Parabolic Trough Collector for CPV-T Application
复制标题
用于 CPV-T 应用的太阳能热抛物面槽式集热器的转换和测试
作者：
R. Felsberger;A. Buchroithner;B. Gerl;H. Wegleiter
在太阳能发电领域，聚光器系统，如聚光器光伏(CPV)或聚光太阳能(CSP)，由于与传统光伏(PV)相比发电效率高，以及热端的低成本储能，是密集研究活动的主题。尽管将热和电部分结合在一个吸收器中的想法是显而易见的，但很少有混合系统(即集中器光伏-热系统(CPV-T))在文献中或商业上得到描述。本文介绍了将商用热抛物面槽集热器转换为使用多结光伏电池的CPV-T混合系统。从选择合适的光伏电池、阐述光学和机械系统要求、散热片设计和最终组装开始，详细描述了设计过程。通过跟踪最大功率点的实际试验和发热量的经验测定，证明了该方法的可行性，并给出了测量结果。
In the field of solar power generation, concentrator systems, such as concentrator photovoltaics (CPV) or concentrated solar power (CSP), are subject of intensive research activity, due to high efficiencies in electrical power generation compared to conventional photovoltaics (PV) and low-cost energy storage on the thermal side. Even though the idea of combining the thermal and electrical part in one absorber is obvious, very few hybrid systems (i.e., concentrator photovoltaics-thermal systems (CPV-T)) are either described in literature or commercially available. This paper features the conversion of a commercial thermal parabolic trough collector to a CPV-T hybrid system using multi-junction PV cells. The design process is described in detail starting with the selection of suitable PV cells, elaborating optical and mechanical system requirements, heat sink design and final assembly. Feasibility is proven by practical tests involving maximum power point tracking as well as empirical determination of heat generation and measurement results are presented.