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.
出处
《电网技术》
EI
CSCD
北大核心
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)~~
