电网综合反事故演练仿真系统

Integrated anti-accident drilling simulation system of power grid

介绍了商丘电网综合反事故演练仿真系统。该系统采用跨平台仿真支撑系统,由实时数据库管理系统、实时执行与进程调度系统、进程通信与I/O执行系统等部分组成。与传统的实时数据库相比,增加了抽象数据结构的管理能力。电网一次模型采用不对称网络实时故障潮流分析技术,动态计算全网各节点故障电压、各支路故障电流,并用以直接启动保护和自动装置;电网二次模型采用的保护装置与实际电网一样,采样该装置电压互感器、电流互感器的电流、电压,按照保护原理计算,与自己的物理量定值和时间定值比较,实现保护装置功能;采用图形矢量化保护屏,在计算机中再现保护屏形态,而且可与现场一样实现保护装置各种操作的全部功能。变电站内设备的仿真模块,采用三维动画技术真实再现变电站工作场景,现场操作票中的各项内容均能在仿真系统实现,并具有在线调度自动化系统的各种功能。实现了电网及变电站联合反事故演练,调度员、变电站运行人员及保护人员联合业务培训、技术比武等多种功能。

The integrated anti-accident drilling simulation system for Shangqiu power grid is presented, as a cross-platform simulation support system, which is composed of real-time database management system, real-time execution and procedure dispatch system, procedure communication and I/O execution system and so on. Compared with traditional real-time database, the ability of abstract data configuration management is enhanced. The real-time fault power flow analysis technique of asymmetric network is adopted in the primary model of power grid to dynamically calculate the fault voltage of each node and the fault current of each branch and to directly start up the protective relay and automatic equipment. The protective equipment of the secondary model of power grid is the same as that of real power grid, of which the current and voltage are sampled via PT and CT, calculated according to protection principle and compared with the settings to realize protective functions. The graphic protection panel is adopted to present its real configuration and to realize all site Operations. The simulative module of substation device adopts the three-dimensional animation to show the actual substation. All items of field operation order are realized in the simulation system. The system has various functions of online dispatch automation system. The system realizes the combined anti-accident drilling integrated of power grid and substation and the multiple functions for training and technical contest of operators, dispatchers and protection staffs.