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Acceleration of degradation by highly accelerated stress test and air-included highly accelerated stress test in crystalline silicon photovoltaic modules

机译:通过晶体硅光伏模块中的高加速应力测试和空气中的高加速应力测试加速降解

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摘要

We examined the effects of hyper-hygrothermal stresses with or without air on the degradation of crystalline silicon (c-Si) photovoltaic (PV) modules, to shorten the required duration of a conventional hygrothermal-stress test [i.e., the "damp heat (DH) stress test", which is conducted at 85 degrees C/85% relative humidity for 1,000 h]. Interestingly, the encapsulant within a PV module becomes discolored under the air-included hygrothermal conditions achieved using DH stress test equipment and an air-included highly accelerated stress test (air-HAST) apparatus, but not under the air-excluded hygrothermal conditions realized using a highly accelerated stress test (HAST) machine. In contrast, the reduction in the output power of the PV module is accelerated irrespective of air inclusion in hyper-hygrothermal test atmosphere. From these findings, we conclude that the required duration of the DH stress test will at least be significantly shortened using air-HAST, but not HAST. (C) 2016 The Japan Society of Applied Physics
机译:我们检查了有或没有空气的高湿热应力对晶体硅(c-Si)光伏(PV)组件降解的影响,以缩短常规湿热应力测试所需的时间[即,“湿热( DH)应力测试”,在85摄氏度/ 85%的相对湿度下进行1000小时]。有趣的是,PV模块内的密封剂在使用DH应力测试设备和空气高度加速应力测试(air-HAST)装置实现的含空气湿热条件下会变色,但在使用以下方法实现的空气排除湿热条件下则不会变色高度加速压力测试(HAST)机器。相反,无论在超湿热测试气氛中是否包含空气,PV模块的输出功率的降低都将加速。根据这些发现,我们得出结论,使用air-HAST至少可以显着缩短DH压力测试所需的时间,而不能使用HAST。 (C)2016年日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2016年第2期|022302.1-022302.9|共9页
  • 作者单位

    ESPEC Corp, Test Consulting Serv Headquarters, Tsukuba, Ibaraki 3050035, Japan;

    Natl Inst Adv Ind Sci & Technol, Res Ctr Photovolta, Tsukuba, Ibaraki 3058568, Japan;

    Natl Inst Adv Ind Sci & Technol, Res Ctr Photovolta, Tsukuba, Ibaraki 3058568, Japan;

    Natl Inst Adv Ind Sci & Technol, Res Ctr Photovolta, Tsukuba, Ibaraki 3058568, Japan;

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