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Calculation of Stator Temperature Field of Generator
Author(s): 
Pages: 1-6,92
Year: Issue:  3
Journal: TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY

Keyword:  涡流温度场同步发电机;
Abstract: 根据电磁场理论推导了定子上、下层绕组属于同相槽和异相槽时,槽内各根股线的电阻增大系数表达式,由此计算了各根股线内涡流损耗值,并将该值代入三维稳态温度场方程.采用六面体八节点等参单元对三维温度场方程进行了离散,以一台大型水轮发电机为例进行了计算,并与实测结果进行了对比,计算精度满足工程需要.最后,分析了涡流损耗的不同分布对定子绕组及铁心温度场的影响,给出了相应的定子温度场图和铁心温度沿径向高度的分布曲线.
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