Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1117/12.2326699 |
A Novel Climate-specific Field Accelerated Testing of PV Modules | |
Tatapudi, Sai; Kuitche, Joseph; TamizhMani, GovindaSamy | |
通讯作者 | Tatapudi, Sai |
会议名称 | Conference on New Concepts in Solar and Thermal Radiation Conversion and Reliability |
会议日期 | AUG 19-21, 2018 |
会议地点 | San Diego, CA |
英文摘要 | Failure modes and degradation rates of PV modules in a specific climate are primarily dictated by the module design and field-specific climate stressors such as temperature, UV and humidity. To identify the long-term design issues and predict lifetime of PV modules, the plant owners, investors and researchers typically utilize long-term indoor accelerated tests such as extended/modified IEC 61215 tests. Though the indoor accelerated tests can appropriately be designed for the environmental stressors of a specific climate, several challenges are encountered and they include: capital and operating costs of multiple walk-in environmental and weathering chambers for commercial size modules; only statistically insignificant number of commercial modules can be tested at a time due to size limitation of the chambers, and; multiple climate-specific temperatures and multiple humidity profiles used in the long-term accelerated tests prevent performing conventional IEC 61215 test profiles inside the same chamber. All the above-mentioned challenges can be adequately addressed using a novel climate-specific field accelerated testing setup presented in this work. This test program has been designed specifically for the hot-dry desert climate where the environmental stressors are temperature and UV with little or no influence from humidity. This program can easily be modified for the other climatic conditions, e.g. test setup for a hot-humid condition can include temperature, UV and humidity. In the current outdoor accelerated test program for hot-dry desert climate, the temperature acceleration is achieved by inserting heavy thermal insulators on the backside of the modules and the UV acceleration at higher operating temperatures are achieved by using a V-trough solar concentrator on the thermally insulated PV modules installed on a 2-axis tracker. An acceleration factor of about 12-15 is expected depending on the activation energy of the climate-specific degradation mechanism, e.g. encapsulant browning and solder bond degradation. |
英文关键词 | Accelerated testing predict lifetime climate-specific field accelerated testing |
来源出版物 | NEW CONCEPTS IN SOLAR AND THERMAL RADIATION CONVERSION AND RELIABILITY |
ISSN | 0277-786X |
EISSN | 1996-756X |
出版年 | 2018 |
卷号 | 10759 |
EISBN | 978-1-5106-2090-2 |
出版者 | SPIE-INT SOC OPTICAL ENGINEERING |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | USA |
收录类别 | CPCI-S |
WOS记录号 | WOS:000452659600003 |
WOS类目 | Thermodynamics ; Energy & Fuels ; Optics |
WOS研究方向 | Thermodynamics ; Energy & Fuels ; Optics |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/307746 |
作者单位 | Arizona State Univ, Photovolta Reliabil Lab, 7349 E Innovat Way South, Mesa, AZ 85212 USA |
推荐引用方式 GB/T 7714 | Tatapudi, Sai,Kuitche, Joseph,TamizhMani, GovindaSamy. A Novel Climate-specific Field Accelerated Testing of PV Modules[C]:SPIE-INT SOC OPTICAL ENGINEERING,2018. |
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