凸极同步发电机定子内部故障瞬态的仿真模型

随着凸极同步发电机单机容量的不断增加 ,其结构越来越复杂 ,造价也更加昂贵 ,一旦发生故障 ,会带来巨大的经济损失。运用多回路分析方法建立的凸极同步发电机定子绕组内部故障的数学模型及在此基础上编制的仿真程序 ,可以对凸极同步发电机定子绕组内部故障的瞬态和稳态过程进行仿真 ;通过对仿真结果与实验结果的比较 ,验证了数学模型的正确性。该仿真程序能够揭示凸极同步发电机定子绕组内部故障瞬态的运行特征及瞬态过程中各个故障量的变化规律。

Transient behavior of internal faults in stator windings of salient-pole synchronous machines

Large capacity electrical machines are expensive and complicated. Faults in such machines result in large losses. The multi loop method was used to develop a mathematical model for salient pole synehronous machines. The transient and steady state behavior of the machine with internal faults was simulated using the model, with the results consistent with experimental results. The simulation program was used to study the characteristics of the transient process and the variation of the currents and voltages in a machine with internal faults.