CAJ | 학술논문

根据光伏电池的转换特性，详细分析温度对光伏电池开路电压、短路电流、填充因子及转换效率的影响。并设计测试平台，对多晶硅光伏电池实际输出转换效率的温度特性进行了实验研究。结果表明，硅光伏电池输出开路电压随温度升高的减少率约为-2.3mV／K，理想填充因子随温度升高的减少率约为-4.5×10-4／K，短路电流随温度增加而增大，其随温度升高的增加率约为1.21 mA／K。总体而言，光伏电池转换效率随温度增加而减少。同时，实验结果也证明多晶硅光伏电池实际输出效率随其温度升高的减少约为-0.22％／K，实验结果与理论分析基本一致。研究结果为光伏系统的优化设计提供了理论及实验基础。
근거광복전지적전환특성，상세분석온도대광복전지개로전압、단로전류、전충인자급전환효솔적영향。병설계측시평태，대다정규광복전지실제수출전환효솔적온도특성진행료실험연구。결과표명，규광복전지수출개로전압수온도승고적감소솔약위-2.3mV／K，이상전충인자수온도승고적감소솔약위-4.5×10-4／K，단로전류수온도증가이증대，기수온도승고적증가솔약위1.21 mA／K。총체이언，광복전지전환효솔수온도증가이감소。동시，실험결과야증명다정규광복전지실제수출효솔수기온도승고적감소약위-0.22％／K，실험결과여이론분석기본일치。연구결과위광복계통적우화설계제공료이론급실험기출。
Using conversion characteristics of photovoltaic ( PV) cells, the effects of temperature on open circuit volt-age, short circuit current, fill factor (FF) and conversion efficiency of PV cells are studied .Moreover, a test plat-form is designed to study the temperature characteristics of output efficiency for polysilicon PV cells .The results show that the decreasing rate of open circuit voltage and FF with temperature rise are -2.3mV/K and -4.5 ×10 -4/K re-spectively, and the increasing rate of short circuit current with temperature rise is 1.21mA/K.Thus, the conversion efficiency of PV cells decreases with temperature increase .In addition , experiment result also shows a -0 .22%/K decreasing rate of the output efficiency of polysilicon PV cells , which is consistent with theoretical analysis .The re-sults provide a theoretical and experimental basis for the optimal design of PV systems .