双馈式感应发电机定子匝间短路故障诊断措施

摘要

在双馈式感应发电机运转过程中，定子绕组匝间短路是一种经常遇到的故障。本文首先分析了发电机定子匝间短路故障出现后电磁特性的规律，然后利用多回路数学模型仿真计算了各种情况下匝间短路故障，深入研究了仿真结果，并用频谱对转子侧电流和定子侧电流进行了分析，制定了发电机定子匝间短路的应对措施。%Stator interturn short circuit is a frequent fault in the operation process of doubly-fed induction generator.In the paper,law of the magnetic properties after occurrence of stator interturn short circuit fault is analyzed firstly.Then,multi-loop mathematical model is utilized for simulating and calculating interturn short circuit faults under various circumstances. The simulation results are studied deeply.The rotor-side current and stator-side current are analyzed through frequency spectrum.Response measures of generator stator interturn short circuit is formulated.