电机与控制应用2024，Vol.51Issue(7)：10-20,11.DOI:10.12177/emca.2024.066
灵活调峰下发电机转子绕组的温度场及热变形分析
Analysis of Flexible Peaking Operation on Temperature Field and Thermal Deformation of the Rotor Winding of Turbo-Generator
摘要
Abstract
Under the frequent peaking operation of water-hydrogen-hydrogen cooled turbo-generator,the temperature of the rotor winding changes repeatedly for a long time and is subjected to thermal stress,which leads to deformation of winding and inter-turn insulation,and directly affects the performance and stability of the generator,so it is very important to study the temperature distribution law and the thermal deformation law of the rotor winding under the variable operating conditions.A 600 MW water-hydrogen-hydrogen cooled turbo-generator is taken as the object of study,according to the rotor structure,the calculation area under the rotating state is determined,and a three-dimensional electric-heat-fluid coupling calculation model is established.Under the corresponding basic assumptions and boundary conditions,the temperature field and fluid field distribution of the rotor are calculated,and the accuracy of the simulation calculations is verified by comparing the measured results.The results of the rotor temperature field are taken as thermal loads,and the corresponding boundary conditions are added to calculate the thermal deformation of the rotor winding under variable operating conditions,and the thermal deformation law is further summarized.关键词
汽轮发电机/转子绕组/温度场/流体场/热变形Key words
turbo-generator/rotor winding/temperature field/fluid field/thermal deformation分类
信息技术与安全科学引用本文复制引用
郭剑雄,马党国,刘轩东,张鹤峰,盛轲焱,冯重阳..灵活调峰下发电机转子绕组的温度场及热变形分析[J].电机与控制应用,2024,51(7):10-20,11.基金项目
中国华电集团有限公司"揭榜挂帅"项目(CHD-KJ22-01-108)Project Unveiling and Commanding of China Huadian Co.,Ltd.(CHDKJ22-01-108) （CHD-KJ22-01-108）
