【摘要】 以Matlab仿真模型为例介绍了数字仿真技术在继电保护教学中的应用方法。利用Matlab动态仿真包Simulink以及Matlab编程环境对继电保护的几个常见关键问题,包括中性点不接地系统接地故障、系统振荡、距离保护动作特性、变压器励磁涌流等进行了仿真。仿真和分析结果表明,数字仿真技术能够形象地反映电力系统的各种工况和继电保护的动态行为特性,完全可以作为继电保护教学的辅助工具,与实验环节一起加深学生对于继电保护知识的理解和掌握。更多还原

【Abstract】 Taking Matlab based simulation models as examples,the application of digital simulation technology in relay protection teaching is introduced.With Simulink Toolboxes and programming environment in Matlab,several key contents for relay protection are simulated,such as ground fault in power system with ungrounded neutral,power system oscillation,operating characteristics of distance protection and transformer inrush current,etc.Simulation results show that digital simulation technology can reflect properly different operating conditions of power system and dynamic behaviours of relay protection.Therefore,this technology can serve as one aided teaching tool to enhance student’s understanding of relay protection knowledge.更多还原