基于图形平台的电力系统继电保护动作逻辑仿真

提出了一种基于电力系统一次和二次接线图的继电保护动作逻辑仿真的实现思想和算法。根据实际系统接线图，形成继电保护拓扑和动作逻辑数据库，根据给定潮流、故障设置和保护定值判断启动条件，根据保护动作逻辑实现保护启动、动作时序、故障跳闸、保护返回、手动复归等继电保护动作全过程的仿真，可以满足继电保护定值校核、事故分析和岗位培训的综合要求。开发的发电机组和变电站继电保护仿真系统证明了其思想和算法的正确性及有效性。

THE OPERATION LOGIC SIMULATION OF RELAY PROTECTION OF POWER SYSTEMS BASED ON GRAPHIC PLATFORM

The ideas and algorithms to simulate the operating process of relay protection is introduced based on the prim ary and secondary circuitdiagrams of power system s.The topology inform ation and the operation logic databases are firstformed from the circuit diagrams,then the starting conditions of the relay protection are determined according to the given power flow,faults and the relay settings.With all these rules,the operation logic of the relay protection can be sim ulated,such as the relay starting,operation logic sequences,fault trip,relay return and reset.In fact,the sim ulation meets the needs of relay settings checking,post- fault analysis and specialty training.The relay protection simulation systems developed for the generator units and substations indicate the validity of the ideas and algorithms proposed in this paper.