变压器数字实时仿真及在电力系统中的应用

Real-Time Digital Simulation and Application of Transformer in Power System

提出了一个三相、双绕组,Y0/Δ-11变压器的实时仿真模型,给出了合适的数字积分方法,并将该变压器应用于高压远距离单回输电系统中,对空载合闸涌流的电磁暂态过程进行了仿真。仿真实例在PC机系统上的运行结果表明,所提出的模型和选用的数字积分方法是正确的,并且能实时实现。

This paper presents a real time simulation model of a three phase double winding Y 0/Δ 11 transformer and its numerical integration method,which is also applied in a long distance high voltage single line electric power transmission system.In addition,this paper has also simulated the electromagnetic transient of the inrush phenomenon that the transformer is switched in the null loaded circuits.The simulation result on PC shows that the model and the numerical integration method is correct and can be realized in real time.