基于面向对象技术的变压器空载合闸涌流仿真

本文采用常规方法及四阶龙格库塔法对单相变压器合闸过渡过程进行计算，利用面向对象的Delphi语言以及Access数据库，开发了合闸涌流可视化仿真软件。通过该软件，学生不仅可以掌握变压器合闸过程中的电流与磁通的非线性关系及其影响因素，而且可以了解非线性问题的数值求解方法，为学习“电机学”中后续的非线性问题奠定了基础。

Simulation of Magnetizing Inrush Current in Transformer Based on the Object Orientated Technique

This paper describes the simulation of magnetizing inrush current in transformer, which is calculated by conventional method and four-order Runge Kutta, respectively. This visual simulation system is developed by employing object - oriented language Delphi and database Access with a friendly interface in order to eommunicate with students effectively. Based on this software platform, the students are able to easily master the non-linear relations between the current and flux as well as the key factors during the transient of magnetizing inrush current. Meanwhile, computer-resolving approach for non-linear issue could be learned as well. As a result, the foundation of further studies regarding the non-linear issue on electrical machines and devises is established.