电力变压器的数学模型与仿真的研究

Study on Mathematical Mode and Simulation of Power Transformer

提出了一个三相、双绕组、Y0 /Δ - 11电力变压器 (由三个单相变压器组成 )的实时仿真模型 ,给出了合适的数字积分方法 ,并对该变压器空载合闸的合闸涌流的电磁暂态过程及正常负载运行过程进行了仿真 .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 。

This paper presents a real-time simulation model of a three-phase double-winding star/delta-11 power transformer and its numerical integration method. In addition, the author has also simulated the electromagnetic transient of the inrush phenomenon when the transformer is switched in the null-loaded circuits as well as the process of the normal-loaded state. The simulation result on the PC shows that the model and the numerical integration method is correct and can be realized in time.