ESTABLISHMENT AND EXPERIMENTAL VERITIFICATION OF TRANSIENT THERMAL MODEL OF SILICONE RUBBER PLATE

Wang Tingting; Yang Zhenglin; Yang Lin; Hao Yanpeng; Luo Bing; Li Licheng

doi:10.19912/j.0254-0096.tynxb.2020-0433

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (5) : 200-205. DOI: 10.19912/j.0254-0096.tynxb.2020-0433

ESTABLISHMENT AND EXPERIMENTAL VERITIFICATION OF TRANSIENT THERMAL MODEL OF SILICONE RUBBER PLATE

Wang Tingting^1,2, Yang Zhenglin³, Yang Lin³, Hao Yanpeng³, Luo Bing^1,2, Li Licheng³

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Abstract

In order to study the surface temperature characteristics of photovoltaic backplane during partial discharge, establish a thermal circuit model of silicon rubber plate to realize the indirect calculation of discharge surface temperature. Firstly, establish a transient thermal circuit model of silicone rubber plate according to the characteristics of tracking of photovoltaic backplane. Considering the influence of air convection, introduce the air convection index n to modify the model. Propose the solution method of air convection index and convection heat transfer coefficient. Then exert current on a metal wire to simulate the heating state of the surface discharge of the silicone rubber plate. Design the temperature rise test of the silicone rubber plate and collect the surface temperature data and compare with the results calculated by thermal model. The relative error of the result of thermal circuit model is less than 10%, which has high accuracy.

Key words

PV backplane / creeping discharge / temperature / heat transfer / thermal circuit model / air convection index

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Wang Tingting, Yang Zhenglin, Yang Lin, Hao Yanpeng, Luo Bing, Li Licheng. ESTABLISHMENT AND EXPERIMENTAL VERITIFICATION OF TRANSIENT THERMAL MODEL OF SILICONE RUBBER PLATE[J]. Acta Energiae Solaris Sinica. 2022, 43(5): 200-205 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0433

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