华中科技大学学报（自然科学版）2025，Vol.53Issue(7)：8-15,8.DOI:10.13245/j.hust.250417
匝间短路故障下发电机定子系统温升研究
Temperature rise of synchronous generator stator system under stator interturn short circuit
摘要
Abstract
The loss and temperature rise of stator core-winding system under stator interturn short circuit fault in synchronous generator was investigated.The thermal wear rule of insulation under different degrees and positions of short circuit was obtained.Firstly,the loss expression was derived to analyze the temperature rise of core and winding.Then,the magnetic-thermo-mechanical coupling model was established to calculate the temperature distribution.The thermal response was calculated under the combined impact of the unbalanced magnetic heat source from the outer core and the non-uniform electric heat source from the inner conductor.Additionally,the study identified potential failure points in the stator winding insulation.Finally,experiment was conducted on a 5 kW fault simulation generator to determine system temperature.The experimental data obtained are in good agreement with theoretical analysis and simulation calculation.The paper provides fundamental data and scientific support for failures prevention,reverse design optimization,and manufacturing processes improvement of winding insulation.关键词
同步发电机/定子铁芯-绕组系统/定子绕组匝间短路/温升特性/绝缘热磨损Key words
synchronous generator/stator core-winding system/stator interturn short circuit/temperature rise characteristic/insulation thermal wear分类
信息技术与安全科学引用本文复制引用
孙凯,何玉灵,吴学伟,汪钟才..匝间短路故障下发电机定子系统温升研究[J].华中科技大学学报（自然科学版）,2025,53(7):8-15,8.基金项目
国家自然科学基金资助项目(52177042) （52177042）
河北省自然科学基金资助项目(E2022502003,E2021502038) （E2022502003,E2021502038）
中央高校基本科研业务费专项基金资助项目(2023MS128) （2023MS128）
河北省第三批青年拔尖人才支持计划资助项目([2018]-27) （[2018]-27）
河北省高层次人才资助项目(B20231006) （B20231006）
苏州市社会发展科技创新资助项目(SS202134). （SS202134）
