与伊-冯输电线路相连电网的等值简化与仿真研究  

EQUIVALENT SIMPLIFICATION AND EMULATION RESEARCH ON POWER NETWORK CONNECTED TO YIMIN-FENGTUN TRANSMISSION LINE

作　　者：胡国文[1] 王仲鸿[2] 程明[1] 

机构地区：[1]东南大学电气工程系,江苏省南京市210096 [2]清华大学电机系,北京市海淀区100084

出　　处：《电网技术》2005年第9期5-9,共5页Power System Technology

基　　金：国家自然科学基金资助项目(59637050)~~

摘　　要：运用等值简化的原则对与装有可控串补(TCSC)的伊-冯输电线相连的电网进行了等值简化与仿真研究。简化前后系统的数值仿真及稳态潮流计算结果和在伊-冯线加装45%串补时的稳定计算结果表明,简化前后的系统对伊-冯输电线而言完全等效,简化后的系统在发生单相永久性故障和失步时,分别在仿真时间t=6.0s和t=5.5s前的临界稳定时间段内,与简化前系统的功角特性和冯屯侧的母线电压波形基本一致。The power network connected to Yimin-Fengtun transmission line with thyristor controlled series compensation (TCSC) is simplified and simulated by use of the principle of equivalent simplification. The results from numerical simulation and steady state power flow calculation before and after the simplification and those from stability calculation with 45% series compensation added show that the systems before and after the simplification are entirely equivalent for Yimin-Fengtun transmission line. When permanent single-phase grounding fault and loss of synchronism occurs respectively in the simplified system, the power angle characteristics of the simplified system and the bus voltage waveform at the Fengtun side are basically coincided with those of the system before simplification during the critical stability time intervals before t is equal to 5.5 second and t is equal to 6.0 second respectively.

关 键 词：仿真研究 等值 输电线路 电网 计算结果 永久性故障 可控串补 数值仿真 临界稳定 电压波形 功角特性 系统 时间段 失步 单相 母线 

分 类 号：TM726[电气工程—电力系统及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]