电机与控制应用2015，Vol.42Issue(11)：85-90,6.
基于Ansoft的汽轮发电机转子匝间短路故障分析
Analysis of Turbogenerator with Rotor Inter-Turn Short-Circuit Fault Based on Ansoft
李永刚 1韩冰1
作者信息
- 1. 华北电力大学 电气工程学院,河北 保定 071003
- 折叠
摘要
Abstract
According to theoretical analysis, rotor inter-turn short-circuit fault will cause unbalanced voltage between the two stator parallel branches. A field-circuit coupling model of a generator was established through the finite element software Ansoft, apply this model to simulate the normal and faulty conditions, and air gap flux density curves and unbalanced voltage curves of normal and faulty conditions were got. Conduct spectral analysis to the air gap flux density curves and we could know how the even harmonics change with faulty conditions. Conduct spectral analysis to the unbalanced voltage curves and we could know how the components change with faulty conditions, which provide profitable basis for fault diagnose. At last, the faulty conditions inter-turn short-circuit coupled with air gap eccentrics were simulated, and got the unbalanced voltage curves and their spectral analysis results, and compared them with the result when only inter-turn short-circuit fault occurs.关键词
汽轮发电机/转子匝间短路/气隙磁密/不平衡电压Key words
turbogenerator/rotor inter-turn short-circuit/air gap flux density/unbalanced voltage分类
信息技术与安全科学引用本文复制引用
李永刚,韩冰..基于Ansoft的汽轮发电机转子匝间短路故障分析[J].电机与控制应用,2015,42(11):85-90,6.
