【摘要】 应用面向对象的编程技术,研制了电网拓扑图形与后台数据库相结合的110kV城市电网故障仿真培训系统。系统的全部功能都可以通过对图形界面的操作完成,可以直接设置故障点、故障类型,并根据相应的保护配置、数据库中的定值调用,模拟故障后自动装置、继电保护动作情况和开关状态。在电网故障仿真中,采用了模拟实时数据(由潮流计算与短路计算提供)采集与保护仿真的故障仿真方法,当教员设置故障后,短路计算结果立即会被采集并与保护定值比较,实时仿真了故障与保护的动作情况。更多还原

【Abstract】 Applied the object-oriented programming, the 110 kV city fault simulation and training system for power network is developed. Topological graph of network is integrated with the background database. All functions of the proposed system can be achieved by operating the graphical interface. By setting a fault point and fault type in the graphical interface, it can simulate the state of switch and the action of automechanism as well as the relay protection after fault occurring in terms of the relay collocation and the fixed value in database. In the fault simulation system, a method of imitating real-time data acquisition, which provided by power flow calculation and short circuit calculation, and relay protection has been adopted. After setting fault by instructor, the result of short circuit calculation will be acquired at once and compared with the setting of protection. In this way, it simulates the action of fault and relay protection.更多还原