电工技术学报2017，Vol.32Issue(7)：67-76,10.
多极隐极发电机励磁绕组匝间短路时的定子分支环流谐波特性
Stator Branch Circulating Current Harmonic Characteristics of Multipole Non-Salient-Pole Generator with Field Winding Inter-Turn Short Circuits
摘要
Abstract
In order to find out the physical principles and short circuit characteristics behind inter-turn short circuits of field winding in multipole non-salient-pole generator,the magnetomotive force and stator no-load electromotive force under normal condition and fault were deduced.And the stator branch circulating current under the fault was also deduced.Through comparative analysis,the relation between the pole pairs and stator no-load electromotive force as well as the relation between the pole pairs and harmonic currents are revealed.Further,the current harmonic characteristics are analyzed with the field winding fault in different degrees of the same position and different positions of the same degree.The relationship among stator branch circulating current,fault position and fault degree was obtained.Last,taking a nuclear power half speed non-salient-pole generator as example,the two conditions have been simulated.The results of simulation and mathematic calculation are consistent,and the correctness of analytic method is verified.The formula provides a theoretical basis for the online location of the field winding inter-turn short circuit fault关键词
多极隐极发电机/励磁绕组/匝间短路/谐波环流Key words
Multipole non-salient-pole generator/field winding/inter-turn short circuit/harmonic circulating current分类
信息技术与安全科学引用本文复制引用
辛鹏,戈宝军,陶大军,赵洪森,张慧瑜..多极隐极发电机励磁绕组匝间短路时的定子分支环流谐波特性[J].电工技术学报,2017,32(7):67-76,10.基金项目
国家自然科学基金项目(51407050)、国家重大科技专项(2009ZX06004-013-04-01)和黑龙江省博士后基金项目(LBH-Z15033)资助. （51407050）
