中文摘要：

建立了光伏-热电耦合利用系统的数学模型,并从热阻分析的角度对耦合系统进行了分析优化。对系统各部分热阻进行了敏感度分析,发现了冷却系统热阻为复合系统的控制热阻,并分析了各部分热阻对系统表现的影响。针对耦合系统的控制热阻,研究了冷却系统换热系数对系统总输出功率的影响,发现受迫风冷更加适用于不聚光的光伏热电耦合系统。比较了光伏热电一体化系统与原耦合系统,发现一体化可以提高复合系统的表现。

英文摘要：

A theoretical model of photovoltaic-thermoelectric（PV-TE） hybrid system is established,and the coupled system is optimized through a method of thermal resistance analysis.A sensitivity analysis was carried out on the thermal resistances of each component to investigate their influences on the performance of the PV-TE hybrid system.Based on the result of the thermal resistance analysis,the impact of the convective heat transfer coefficient of the cooling system on the output power of the PV-TE hybrid system is investigated.A new integrated PV-TE hybrid system is proposed,and the performance of the integrated hybrid system is compared to the traditional coupled system.The result shows that the thermal resistance of the cooling system is the most influential.The forced-air cooling is more suitable for the PV-TE hybrid system without optical concentrating which is studied in this paper.Additionally,the integration can further optimize the PV-TE hybrid system.