中国电机工程学报2012，Vol.32Issue(12)：111-119,9.
大型全空冷水轮发电机定子线棒损耗和温度场综合计算
Excessive Losses and Temperature Field Calculation of Stator Coil Bars in Air-cooled Large Hydro-generators
杜灿勋 1桂卫华 1周光厚2
作者信息
- 1. 中南大学信息科学与工程学院,湖南省长沙市410083
- 2. 东方电机有限公司,四川省德阳市618000
- 折叠
摘要
Abstract
To calculate the excessive losses of the stator coil bars in air-cooled hydro-generator,the eddy and circulating current losses and temperatures in the stator bars were investigated thoroughly.An optimal solution of electromagnetic field,fluid field,temperature field of the stator bars was presented and established using finite element method（FEM） based computational fluid dynamics（CFD）/numerical heat transfer（NHT） methods,with consideration of the factors such as the strands distribution in slots and the difference of slots of same phase and different phase.The excessive loss and temperature distribution of the stator bars were calculated and compared with the site test data from a 350？MW air-cooled large hydro generator.Results show the optimal method is accurate and effective in engineering application.关键词
水轮发电机/定子线棒/附加损耗/有限元/温度场Key words
hydro-generator/stator coil bars/excessive loss/finite element/temperature filed分类
信息技术与安全科学引用本文复制引用
杜灿勋,桂卫华,周光厚..大型全空冷水轮发电机定子线棒损耗和温度场综合计算[J].中国电机工程学报,2012,32(12):111-119,9.
