江苏大学学报（自然科学版）2017，Vol.38Issue(4)：440-448,9.DOI:10.3969/j.issn.1671-7775.2017.04.012
中型高压异步电动机内风路流体计算与温升优化
Fluid field calculation and temperature rise optimization of inner wind path for medium-size high-voltage asynchronous motor
摘要
Abstract
To investigate the effects of duct number in motor on inner wind path flow and temperature rise,the YKK450-4 of 500 kW medium high-voltage asynchronous motor was taken as example.According to the actual scale,the flow field of inner wind path and the winding end region of stator were simulated to achieve the physical actual model of fluid-solid coupling.Based on the calculation of flow field of the stator,the flux and the flow velocity at each entrance of rotor bracket of ventilator were obtained.The calculation of motor stator was conducted by piecewise fluid-solid coupling method to obtain the highest temperature rise region.According to the hottest position by numerical calculation,a temperature sensor was embedded in the prototype to conduct temperature rise experiment.The results were compared to verify the physical model and solving method.Under the condition that the motor shell size remains unchanged,the width of ducts was changed to reconstruct model for discussing the effects of duct number on fluid flow and heat transmission in motor ducts,and the hottest position for different duct numbers was calculated.The results show that when 9 equal width ducts are adopted,the maximum fluid velocity in motor ducts is obtained.The motor temperature rise is 104.9 K,and the highest temperature rise is decreased by 11.2 K than that under the condition for 10 ducts with the highest temperature rise of 116.1 K.关键词
中型高压异步电动机/内风路/流体场与温度场/温升/通风沟/优化设计Key words
medium-size high-voltage asynchronous motor/inner wind path/flow field and temperature field/temperature rise/duct/optimization design分类
信息技术与安全科学引用本文复制引用
温嘉斌,刘艳翠,李颖男..中型高压异步电动机内风路流体计算与温升优化[J].江苏大学学报（自然科学版）,2017,38(4):440-448,9.基金项目
国家自然科学基金资助项目(51275137) （51275137）
