组件功率与温度及温度系数的关系.docx

工艺试验报告试验项目 试 验名称 组件功率与温度及温度系数的关系试验地点 测试房试验负责人 审 核 日 期 —、试验目的1、 比较不同温度下组件的功率数值以确定组件测试的温度选择；2、 根据组件在不同温度下的Isc、Voc值，计算一定温度区间内的a、b值，确定不同a、b值对功率测试的影响二、 试验内容试验对象：C区测试房，一批组件使用工具：太阳能模拟器试验步骤：1、调节测试房的空调温度使组件的温度达到相对的稳定；2、 对组件进行I-V测试，重复步骤①，选择相邻的3个温度进行 I-V测试；3、 根据不同温度下，组件的Isc、Voc值，计算a、b值并代入太 阳能参数设置处进行测试；4、 将a=0、b=0代入参数设置处进行组件I-V测试，比较不同a、 b值对组件功率值的影响三、 实验现象及分析结果试验在C区测试房进行，通过测试房空调温度的调节使组件温度保持在一定 的温度范围内（21.36°C、22.71°C、24.28°C、25.26°C）对组件进行I-V测试， 测试过程中太阳能模拟器只在测试初进行校正一次，比较不同温度下，组件的功 率值表1是组件在不同温度下的功率数值，图1是不同温度下各个组件功率数 值比较的折线图。

表1不同温度下，组件的功率数值表组件条码\温度21.36C22.71 C24.28 C25.26CSH120703P630CS71-007240.1229240.3827240.9157239.7135SH120703P630CS71-061240.7239241.0672239.8931240.854SH120703P630CS71-062239.367240.3308241.2328239.5713SH120703P630CS71-065240.2253240.849239.3905241.3941SH120703P630CS71-068240.1837240.4458240.9023239.9744SH120703P630CS71-163240.8475241.1965239.9718240.77SH120703P630CS71-171241.4074239.7729240.7525240.5905SH120703P630CS71-191240.8498241.4475241.4035238.5121SH120703P630CS71-228241.3598239.8311240.3156240.7034SH120703P630CS71-240240.7933241.1248239.9521240.8315SH120703P630CS71-435240.4059240.9574239.8629240.968SH120703P630CS71-436240.9556240.2035241.2473239.5631SH120703P630CS71-437240.0621240.3425241.0486239.6554SH120703P630CS71-438240.8553240.305241.3117239.4744SH120703P630CS71-439241.5917238.8276240.8289240.2274SH120703P630CS71-447241.1829239.9826240.2827240.7543SH120703P630CS71-492241.4687239.7589240.7665240.5466SH120703P630CS71-496240.1912240.6691240.8323240.1833SH120703P630CS71-516240.8776240.2532241.2756239.5569平均值240.709240.4078240.6414240.2023图1不同温度下，组件功率数值在图1中，可以看到组件温度对组件功率数值有着一定的影响，温度在 21.36^-25.26^变化时，功率平均值的极差在0.5W左右。

组件温度低时，所 测功率数值的变化并不突出根据温度在21.36^-25.26^变化的Isc、Voc数值，做出a、b值并代入 太阳能参数设置处直接进行组件功率测试，a、b值计算方法如表2所示表2温度系数a、b值计算TMeasIscVoc21.335298.53784337.249822.711768.54564537.2209924.264718.55093937.2568625.247068.55002837.22534a=3.237725b=-0.03695此外，选取了 a=b=0的情况，具体测试数据见表3表3未进行标板时，不同温度系数下组件的功率值a=0、b=0、Rs=0.38、K=0.001 ①Pmaxa=3.2377、b=-0.03695、Rs=0.38、K=0.001 ②Pmaxa=4.7、b=-2.115、Rs=0.38、K=0.001 ③PmaxSH120703P630CS71-007242.7432SH120703P630CS71-007242.5172SH120703P630CS71-007240.4918SH120703P630CS71-062241.2892SH120703P630CS71-062241.1712SH120703P630CS71-062239.0642SH120703P630CS71-068242.0621SH120703P630CS71-068241.8549SH120703P630CS71-068239.9472SH120703P630CS71-191242.4802SH120703P630CS71-191242.4871SH120703P630CS71-191240.0637SH120703P630CS71-436242.1694SH120703P630CS71-436242.0806SH120703P630CS71-436240.1995SH120703P630CS71-437 242.7375 SH120703P630CS71-437 242.4476 SH120703P630CS71-437 240.3548SH120703P630CS71-438 242.6738 SH120703P630CS71-438 242.5644 SH120703P630CS71-438 240.3481SH120703P630CS71-439 243.2639 SH120703P630CS71-439 242.7298 SH120703P630CS71-439 241.1385SH120703P630CS71-496 243.4577 SH120703P630CS71-496 242.9927 SH120703P630CS71-496 241.4646SH120703P630CS71-516 243.2641 SH120703P630CS71-516 243.1142 SH120703P630CS71-516 240.909在表3中，可以看到未进行重新标板时，温度系数的改变可以使组件功率值 发生明显变化，增加了 2w左右，如图2所示。

不同温度系数下，组件功率数值率功4002109876444443ndnd3222222222O0BU-17SL7QU-17SL图2不同温度系数时，组件的功率数值当温度系数a、b值改变时，对太阳能模拟器进行校正并对组件功率进行测 试分析表4不同温度系数时，对标板校正所测功率SN(a=3.237,b=-0.037)PmaxRefCellCalSN(a=4.7,b=-2.115)PmaxRefCellCalSH120709P630DS73-031242.21791.0475SH120709P630DS73-031242.93781.0543SH120709P630DS73-135241.11351.0475SH120709P630DS73-135241.8021.0543SH120709P630DS73-143240.6921.0475SH120709P630DS73-143242.36231.0543SH120709P630DS73-169240.5051.0475SH120709P630DS73-169242.25171.0543SH120709P630DS73-207239.13381.0475SH120709P630DS73-207240.6681.0543SH120709P630DS73-211241.87171.0475SH120709P630DS73-211241.9881.0543SH120709P630DS73-214240.01861.0475SH120709P630DS73-214241.9451.0543SH120709P630DS73-296239.81361.0475SH120709P630DS73-296241.3781.0543SH120709P630DS73-318 240.1747 1.0475 SH120709P630DS73-318 241.348 1.0543SH120709P630DS73-454239.57841.0475SH120709P630DS73-454241.30141.0543SH120709P630DS73-466240.08851.0475SH120709P630DS73-466241.57051.0543SH120710P630FS74-280239.53421.0475SH120710P630FS74-280241.29731.0543SH120710P630FS74-292241.94541.0475SH120710P630FS74-292241.46781.0543SH120710P630FS74-293239.89481.0475SH120710P630FS74-293240.90111.0543SH120710P630FS74-349241.28691.0475SH120710P630FS74-349241.7341.0543SH120710P630FS74-350240.25961.0475SH120710P630FS74-350240.85491.0543SH120710P630FS74-351239.98931.0475SH120710P630FS74-351241.09111.0543SH120710P630FS74-357239.35331.047。