光伏组件抗机械静载荷能力的模拟计算研究  

Simulation of mechanical performance of photovoltaic module under static load

作　　者：刘大为[1] 田鸿翔[1] 高虎[1] 彭文博[1] 赵志国[1] LIU Da-wei;TIAN Hong-xiang;GAO Hu;PENG Wen-bo;ZHAO Zhi-guo(Huaneng Clean Energy Research Institute,Beijing 102209,China)

机构地区：[1]中国华能集团清洁能源技术研究院有限公司,北京102209

出　　处：《电源技术》2018年第11期1662-1665,共4页Chinese Journal of Power Sources

基　　金：中国华能集团清洁能源技术研究院有限公司院控基金(CERI/TW-15-CERI01)

摘　　要：利用有限元模拟计算的方法,定量研究了单玻光伏组件按国标GB-T9535进行2 400 Pa静载测试时,安装加持方式对于测试结果的影响。计算结果表明组件在完全固定、自由放置和四点固定这三种固定方式下,形变量及电池片受到的应力有明显区别:完全固定的安装方式下,组件的变形量最小,电池片应力也最小;自由放置方式下组件则有最大的变形量和应力;而实际安装所采用的四点固定方式则拥有介于前述两种方式之间的形变量。在此基础上进一步对比研究了相同载荷状态下实际光伏阵列中组件的形变和受力,结果显示组件在服役中的受力状态与采用相同安装方式固定的载荷实验测试结果最为接近,但仍存在一定差异。类似的方法也可以用来分析其他类型的光伏组件,如非晶硅薄膜电池的力学性能分析。By utilizing finite element method （FEM）, the mechanical performance of conventional poly-silicon PVmodule with various mounting types in the 2 400 Pa static load test required by standard GB-T9535 wasquantitatively analyzed. The results show that the deformation of PV module and the stress exerted on the PVmodule has obvious differences under three mounting modes, namely complete-fixed, free-standing and four-pointfixed. The PV module bears the smallest stress and deformation under complete-fixed mode while underfree-standing mode, the situation is just on the contrary. Under the four-point fixed mode normally applied in actualPV plant construction, the PV module bears the intermediate stress and deformation. Based on the above analysis,the mechanical performance of PV module in an array under the same load was studied and the results show that theactual stress exerted on the PV module is similar to that with the same installation method and the four-point fixedmode, but the differences still exist. Similar FEM approach can also be used to analyze the mechanical performanceof other types of PV module such as thin film module.

关 键 词：光伏组件 静载荷 机械性能 有限元 

分 类 号：TM914[电气工程—电力电子与电力传动]