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多晶硅铸锭六面加热技术研究与应用分析
Research and Application Analysis of Six-side Heating Technology for Polycrystalline Silicon Ingot 在线阅读 下载PDF
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- DOI:
- 作者:
- 夏新中 刘磊 秦方娜 宋登元 史金超 孟庆超
XIA Xinzhong;LIU Lei;QIN Fangna;SONG Dengyuan;SHI Jinchao;MENG Qingchao
- 作者单位:
- 光伏材料与技术国家重点实验室 英利能源（中国）有限公司 河北利康工程技术有限公司
State Key Laboratory of Photovoltaic Materials and Technology,Baoding 071051,China;Yingli Energy(China)Co.,Ltd.,Baoding 071051,China;Hebei Likang Engineering Technology Co.,Ltd.,Baoding 071051,China
- 关键词:
- 热场建模 温差 定向生长 界面 加热器
thermal field modeling temperature difference directional growth interface heater
- 摘要:
- 加热器作为多晶铸锭炉的核心部件,为硅料熔化和晶体定向生长提供热量。但是,随着多晶铸锭炉尺寸的不断扩大,传统五面加热方式已无法有效满足各阶段的热量供给。横向温差的增大,影响了晶粒的垂直生长,进而使得电池效率下降,同时能耗增加。六面加热技术即在传统五面加热的基础上,增加底部加热器,并且各加热器分开控制。通过热场建模,利用CGSim模拟软件,模拟对比分析了六面加热相比五面加热的差异和优势,并且以类单晶为例对比了实际的生产应用效果。
As the core component of the polycrystalline ingot casting furnace, the heater provides heat for the melting of silicon and the oriented growth of crystals. However, with the continuous expansion of the polycrystalline ingot furnace size, the traditional five-sided heating method has been unable to effectively meet the heat supply at each stage. The increase of the transverse temperature difference affects the vertical growth of grain, which makes the battery efficiency decrease and energy consumption increase. The six-side heating technology is to add the bottom heater on the basis of the traditional five-side heating, and each heater is separately controlled. Through the thermal field modeling and the use of CGSim simulation software, the differences and advantages of the six-side heating compared with the five-side heating are simulated and analyzed, and the actual production and application effects are compared with the mono-crystal as an example.