摘要
根据微机距离保护的工作原理和基本组成,设计了微机距离保护动态仿真系统。按照模块化设计,系统由基于EMTDC的故障暂态计算模块、启动元件模块、傅里叶算法模块、选相元件模块、阻抗继电器模块和显示模块6部分组成。仿真系统将数据格式转换后的故障暂态计算结果作为距离保护动态仿真程序的输入量,通过对输入量进行逐点计算,能同步逐点显示出继电器的测量阻抗和其他各种仿真结果。仿真实例表明,该动态仿真系统既能较好地仿真距离保护在不同工况下的动作行为,为分析距离保护提供依据,而且还可以作为一种有效的软件工具用于继电保护的开发和教学。
A dynamic simulation system for microcomputer-based distance protection is designed according to its working principle and elementary configuration. As a modularized design,the simulation system is composed of fault transient calculation module based on EMTDC,startup component module,Fourier algorithm module,phase selection module,impedance relay module and display module. Through format transition,the calculated fault transient results are used as the input of the dynamic simulation program. As the input data are calculated point by point,the measured impedance and other relevant simulative results are displayed at the same time. Simulative results show that,this dynamic simulation system can be not only used to properly emulate the behaviors of distance protection under different operating conditions for its analysis, but also used as a powerful software tool for the development and training of relay protections.
出处
《电力自动化设备》
EI
CSCD
北大核心
2007年第9期88-90,共3页
Electric Power Automation Equipment
