本文采用多物理场耦合数值方法，对某船用发电机内部定子、转子的温度场以及内部冷却气道的流场、温度场进行数值模拟分析。基于建立的发电机整场耦合分析模型，得到了电机内部定子、转子温度分布及气隙流道内空气的流速分布、压力分布及温度场分布。计算结果表明：采用多物理场耦合数值方法，得到电机的流场与温度场计算结果更加准确，且通风管道内流体的流动情况更加清晰，为优化电机内部冷却气道提供了理论依据。
The paper adopted multi-physics field coupling numerical method. Using numerical simulation method to analyze the temperature field of stator and rotor, and internal cold air flow field and temperature field of marine generator. Based on the analysis model of the whole generator coupling obtained the velocity distribution, the pressure distribution and the temperature field distribution of the stator, the rotor temperature distribution and the air flow in the air flow channel. Calculations proves that using the multi-physics field coupling method, it is more accurate to calculate the flow field and temperature field of the motor and the flow of fluid in the ventilation duct is more clear, which provides a theoretical basis for optimizing the internal cooling airway of the motor.
2018,40(10): 109-113 收稿日期：2017-07-07
DOI：10.3404/j.issn.1672-7649.2018.10.021
分类号：TM31
基金项目：江苏省政策引导类计划（产学研合作）资助项目（BY2016073-10）
作者简介：冯国增(1971-),男,硕士,副教授,主要从事两相流理论与技术、船舶制冷与空调技术研究
参考文献：
[1] 汪勇, 李庆. 新型集成电机推进器设计研究[J]. 中国舰船研究, 2011, 6(1):82-85. WANG Yong, LI Qing. Design of a new integrated motor propulsion system[J]. Chinese Journal of Ship Research, 2011, 6(1):82-85.
[2] 许明宇, 温嘉斌, 吴桂珍, 等. 防爆型高功率密度电机温度场与流体场综合计算[J]. 防爆电机, 2008, 3(43):30-34. XU Ming-yu, WEN Jia-bin, WU Gui-zhen, et al. Integrated calculation on temperature field and fluid field in explosion-proof motor with high power density[J]. Explosion-Proof Electric Machine, 2008, 3(43):30-34.
[3] 周庆生, 黄苏融, 张琪, 等. 新型冷却结构超高精度平面电机定子温度场分析[J]. 中国电机工程学报, 2012, 32(15):134-139. ZHOU Qing-sheng, HUANG Su-rong, ZHANG Qi, et al. Temperature field analysis of novel cooling structure ultra-precision planar motor[J]. Proceedings of the CSEE, 2012, 32(15):134-139.
[4] 李伟力, 杨雪峰, 顾德宝, 等. 多风路空冷汽轮发电机定子内流体流动与传热耦合计算与分析[J]. 电工技术学报, 2009, 24(12):24-31. LI Wei-li, YANG Xue-feng, GU De-bao, et al. Calculation and analysis of fluid flow and heat transfer of air-cooled turbo-generator with multipath ventilation[J]. Transactions of China Electrotechnical Society, 2009, 24(12):24-31.
[5] XYPTERAS J, HATZIATHANASSIOU V. Thermal analysis of an electrical machine taking into account the iron losses and the deep-bar effect[J]. IEEE Transactions on Energy Conversion, 1999, 14(4):996-1003.
[6] 李俊卿, 马少丽, 李和明. 基于耦合物理场的汽轮发电机定子温度场的分析与计算[J]. 华北电力大学学报, 2008, 35(5):6-10.
[7] 路义萍, 丰帆, 王佐民, 等. 同步电机定子三维温度场数值模拟[J]. 电机与控制学报, 2012, 16(3):42-46.
[8] 温嘉斌, 王国辉, 王长江. 基于耦合场的中型高压异步电动机转子温度场的数值计算[J]. 防爆电机, 2011, 46(2):1-2. WEN Jia-bin, WANG Guo-hui, WANG Chang-jiang. Numerical calculation of medium-sized high-voltage induction motor rotor temperature fields based on coupled field[J]. Explosion-Proof Electric Machine, 2011, 46(2):1-2.
[9] 李伟力, 宋厚彬, 杨逢瑜. 水轮发电机通风散热系统多场耦合的数值分析[J]. 电机与控制学报, 2013, 17(10):85-90. LI Wei-li, SONG Hou-bin, YANG Feng-yu. Numerical of the tubular turbine hydroelectric generator ventilation system multi-field coupling[J]. Electric Machines And Control, 2013, 17(10):85-90.
[10] 靳慧勇, 李伟力, 马贤好, 等. 大型空冷汽轮发电机定子内流体速度与流体温度数值计算与分析[J]. 中国电机工程学报, 2006, 26(16):168-173. JIN Hui-yong, LI Wei-li, MA Xian-hao, et al. Calculation and analysis of fluid velocity and fluid temperature in large air-cooled turbo-generator stator[J]. Proceedings of the CSEE, 2006, 26(16):168-173.
[11] 丁树业, 李伟力, 马贤好, 等. 特殊绕组结构的空冷汽轮发电机定子三维温度场计算与分析[J]. 中国电机工程学报, 2006, 26(22):140-145.
[12] 熊正强. 船用发电机转子内部流场与温度场的数值模拟[D]. 镇江:江苏科技大学, 2012.
[13] 孙业志, 胡寿根, 赵君, 等. 不同雷诺数下90°弯管内流动特性的数值研究[J]. 上海理工大学学报, 2010, 32(6):525-529.
[14] 姚汝林, 刘建成, 冯国增. 船用高温风机电机通风冷却风道数值模拟[J]. 船舰科学技术, 2015, 37(6):76-79. YAO Ru-lin, LIU Jian-cheng, FENG Guo-zeng. Numerical research on forced air cooling for marine high temperature exhaust blower motor[J]. Ship Science and Technology, 2015, 37(6):76-79.
[15] 魏永田, 孟大伟, 温嘉斌. 电机内热交换[M]. 北京:机械工业出版社, 1998.
