河南高压输电网运行可靠性评估软件及其实现

OPERATION RELIABILITY EVALUATION SOFTWARE OF HE'NANHIGH-VOLTAGE TRANSMISSION SYSTEMS

介绍了一种基于时序 Monte- Carlo仿真的输电系统运行可靠性评估软件。为更真实地反映系统实际运行状态 ,并节省计算机内存和计算时间 ,选用了事件步长时序模拟法模拟系统的故障状态 ;为使过负荷判定更加准确并同时给出各节点的电压越限情况和系统网损 ,将交流潮流引入可靠性评估 ;为避免维数灾难问题 ,采用灵敏度法调整发电机出力和削减负荷量 ;为解决多重故障网络解列的识别 ,采用简化搜索法进行网络结构辨识。根据算法编制的软件已应用于河南高压输电网。

This paper presents the operation reliability evaluation software of transmission system based on sequential MonteCarlo simulation method. A state duration sampling technique is developed in order to simulate many complex--operatingconditions and to save memory source. AC power flow is used for adequacy assessment. To reduce computation effort, asimplified searching technique is used for system state identification. and algorithms based on sensitivity of system buses tooverloads are applied to simulate generation re--dispatching and load-shedding procedures. This software has been applied toHe'nan 220 kV transmission system.