继电保护装置动作逻辑的数字仿真系统

目前电力系统的运行方式复杂、变化频繁,给继电保护的运行分析带来很大的困难.通过利用计算机软件来模拟实际故障情况下继电保护装置的动作行为,可以进行保护装置定值的校验、保护装置动作逻辑考核、保护动作回放等继电保护运行特性的分析工作.文中通过采集故障录波数据仿真实际电力系统继电保护装置动作逻辑,以保护元件作为动作仿真对象,以保护元件的动作特性等作为判据,开发面向不同保护厂家的精确到保护内部元件动作特性的继电保护装置模型,通过拓扑分析实现真正意义上的图形化界面的继电保护装置动作全过程仿真.

Digital Simulation System of Relay Protection Movement Logic

The current operation manner of the power system is complicated and changes frequently, causing great difficulty in the analysis of operation of relay protection. By making use of computer software to imitate the movement of relay protection in a situation of actual trouble, the operating characteristics of relay protection can be analyzed, such as the check-up of definite values, examination of the protection set, protection movement playback, etc. By gathering the trouble record wave data to emulate actual power system relay protection movement logic and regarding the relay component as the object of movement simulation, the movement characteristics of relay component as the criteria, a relay protection model has been developed which is oriented to different relay types and so accurate that the internal component movement characteristics can be protected, thus realizing the digital simulation of the entire process of relay protection movement of the graphic interface in its true sense by topology analysis.