双馈式感应发电机定子匝间短路故障诊断措施

Measures to diagnose stator interturn short circuit fault of doubly-fed induction generator

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,multiloop 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.