非周期分量对电流互感器饱和特性的影响的仿真

电流互感器是将系统一次侧的电流信号传变到二次回路的重要测量设备，绝大部分继电保护依赖于电流互感器传变过来的电流信号而动作。电流互感器是否能够将一次电流准确的传变到二次侧是继电保护能否正确动作的关键。因此，电流互感器模型在电力系统仿真中有着重要的作用。着重介绍了电力系统暂态仿真中常用的Jiles-Atherton电流互感器的数学模型。并利用该电流互感器模型，仿真了变压器空载合闸产生的励磁涌流的过程，并分析了非周期分量对电流互感器饱和特性的影响。

Simulation of influence of current transformer saturation characteristic by aperiodic current

The current transformer is the important measuring element which transfers primary current to secondary circuit. Most relay protection operating depends on the current transformer signal. It is very important that whether the current transformer could accurately transfer the primary current waveform to secondary circuit. Therefore,current transformer model plays an important role in power system simulation. This paper introduces the Jiles-Atherton current transformer model which is commonly used in transien...