可视化继电保护定值仿真校核系统的研究与开发

针对电力系统继电保护整定计算出的定值无法通过实际故障来验证其选择性和灵敏度的问题,深入研究了继电保护仿真技术,结合定值判断法和逻辑判断法的优点,提出了一种基于故障计算和智能搜索的简化的继电保护定值仿真方法,利用这种仿真算法,结合计算机可视化技术和数据库技术,开发出一种可视化的继电保护定值仿真校核系统。该仿真校核系统快速直观地实现了保护定值的校核和动作行为的仿真,同时实现了图形操作和数据管理的功能,具有很好的实用价值和应用前景,对继电保护在线整定与校核具有一定的参考价值。

Research and development of visual relay protection setting simulation system

Considering the check difficulty of power system relay setting by real power system malfunction,the simulation technology of relay protection was deeply researched. With the advantages of logical judgment method and setting comparison method, based on fault calculation and intelligent search, a kind of simplified relay protection setting simulation and check method was put forward. With this simulation method, visual relay protection setting simulation system was developed using computer visualization and database technology. The simulation system realizes the check of relay protection setting,also it realizes the action simulation of the breakers quickly and directly with good graph operation and data management function. Through the test operation, it shows that the simulation method has good applying foreground and the reference value for online setting and checking of relay protection.