摘要
基于碟式聚光光伏发电系统,深入分析三结砷化镓光伏电池在高倍聚光下(100、125、150倍)的输出特性及开路电压温度系数的影响因素。研究结果表明:在高倍聚光作用下,三结砷化镓光伏电池开路电压的温度系数随聚光比的增大逐步变大,从100倍时的-5.15mV/℃,增长到150倍时的-4.57mV/℃,聚光比较小时的增幅大于聚光比较大时;电池效率的温度系数随聚光比的增大而增加,从100倍时的-0.437%/℃增加到150倍时的-0.291%/℃;电池功率的温度系数和填充因子的温度系数随系统聚光比的逐步增加而增大,分别从100倍时的-0.0280 W/℃和-0.01536/℃增加到150倍时的-0.0260 W/℃和-0.01502/℃。三结砷化镓光伏电池的温度系数明显小于一般的单晶硅光伏电池的温度系数。
The output characteristics and influence factors of temperature coefficient of open-circuit voltage for triple-junction solar cell under high concentration（ 100X,125X, 150X） were analyzed based on the dish-style con-centrating PV system. The results showed that under high concentrated light intensity, the temperature coefficient of open-circuit voltage of triple-junction solar cell changes from -5.15mV/℃ to -4.57mV/℃ as the concentration ration was from 100X to 150X. At low concentration levels, the temperature coefficient of open-circuit voltage increases rapidly, and then increases slowly as the concentration ratio increases. The temperature dependence of η of triple-junction solar cell changes from -0. 437%/℃ to -0. 291%/℃ as the tration ration mas from IOOX to 150X and the temperature dependence of Prom and FF of triple junction solar cell changes from -0. 0280W/℃, -0.01536/℃ to -0. 0260W/℃, -0. 01502/℃ as the concentration ratio was from 100X to 150X, respectively. The temperature coefficient of triple junction solar cell is much smaller than monocrystal silicon＇ s.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2013年第4期664-669,共6页
Acta Energiae Solaris Sinica
基金
教育部博士点基金(200802520006)
上海市研究生创新基金(JWCXSL1021)
上海市重点学科建设项目(S30503)
关键词
太阳能
聚光
三结砷化镓光伏电池
开路电压
温度系数
solar energy
concentration
triple-junction solar cell
temperature coefficient
open-circuit voltage
