摘要
为提高光伏组件在使用阶段的寿命,对光伏组件在实际工况中产生的热进行研究很有必要。为此,基于稳态热仿真和模态仿真技术,对比光伏组件背板处添加不同横条结构对光伏组件散热的影响,提出一种底面为梭形的横条结构,该结构在散热效率上优于其他构型。其次,结合参数采样方法设计,对比不同参数下冷却横条散热性能以及结构特性,对横条结构尺寸进行优化。仿真结果表明所提优化方法可行,与未进行尺寸优化的梭形横条结构的光伏组件相比,对应的一阶模态下的应变和组件最高温度较优,相比优化前温度降低了7.215℃,变形量减少了1.711 mm。最后,通过3行3列光伏阵列模型进行仿真验证,相比无横条的光伏组件,优化后光伏系统最大输出功率增加了133.904 W,验证了优化设计的合理性。
To enhance the service life of photovoltaic modules during operation,it is essential to investigate the heat generated under actual operating conditions.Therefore,on the basis of steady-state thermal and modal simulation techniques,this paper compares the impact of different crossbar structures added to the backsheet of photovoltaic modules on heat dissipation,and proposes a crossbar structure with a trapezoidal bottom surface demonstrating superior heat dissipation efficiency compared to other configurations.Secondly,combining the parameter sampling design method,it compares the thermal performance and structural characteristics of cooling crossbars under different parameters to optimize the crossbar dimensions.The simulation results demonstrate the feasibility of the proposed optimization method.Compared to the unoptimized shuttle shaped crossbar structure,the optimized photovoltaic module exhibits lower strain and maximum module temperature in the first-order mode,achieving a temperature reduction of 7.215℃ and a deformation reduction of 1.711 mm.Finally,simulation validation using a 3×3 photovoltaic array model confirms that the optimized photovoltaic system achieved a maximum power output increase of 133.904 W compared to the unoptimized module,validating the rationality of the optimization design.
作者
李欣
钟飞
刘欢
唐松平
李建波
张振
LI Xin;ZHONG Fei;LIU Huan;TANG Songping;LI Jianbo;ZHANG Zhen(China Southern Power Grid Power Technology Co.,Ltd.,Guangzhou,Guangdong 510080,China;Guangdong Yuedian Testing Technology Co.,Ltd.,Guangzhou,Guangdong 510080,China;Huizhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Huizhou,Guangdong 512200,China;School of Mechanical Engineering,Hefei University of Technology,Hefei,Anhui 230009,China)
出处
《广东电力》
北大核心
2025年第11期86-94,共9页
Guangdong Electric Power
基金
国家重点研发计划(2023YFC3904704)。
关键词
光伏组件
结构优化
稳态热分析
模态分析
photovoltaic module
structure optimization
steady state thermal analysis
modal analysis
