摘要
针对聚光型太阳能光伏电池能量转换效率和使用寿命受温度影响较大的问题,基于砷化镓半导体吸收式光纤温度传感器,提出一种对聚光光伏发电系统的温度进行实时监测和控制的方法。数值仿真实验结果表明,当冷却水的流速降低、聚光光伏电池工作温度升高时,半导体的吸收波长增加,光纤温度传感系统检测出来的温度较高,这时可以通过节流阀增加冷却水的流速,提高聚光光伏电池与冷却水之间的传热系数,从而降低聚光光伏电池的温度。该方法对于延长聚光光伏电池的使用寿命和提高太阳能的利用率具有一定的理论指导意义。
For the problem that energy conversion efficiency and lifespan of concentrated photovoltaic solar cells are greatly influenced by temperature, a method of monitoring and controlling the temperature of the concentrated photovoltaic power system based on the GaAs semiconductor absorption optical fiber temperature sensor is proposed. The results of numerical simulation experiment show that when the flow rate of the cooling water is reduced, higher temperature of the concentrated photovoltaic cells could be detected by the optical fiber temperature detection system. Then we can reduce the temperature of the concentrated photovoltaic cells through improving the flow rate of the cooling water. With prolonging the life of concentrator photovoltaic cells and improving the utilization rate of solar energy, the t）rot）osed method has a ce^ain tbt^ort^tic~] ~ianlfie＇~no~
出处
《激光与光电子学进展》
CSCD
北大核心
2014年第5期41-45,共5页
Laser & Optoelectronics Progress
基金
福建省自然科学基金(2011J01012)
华侨大学光学工程特色学科建设基金
关键词
光纤光学
温度传感器
聚光光伏电池
fiber optics
temperature sensor
concentrated photovoltaic solar cell
