摘要
随着柔性交流输电(FACTS)技术应用的逐渐推广,FACTS装置大幅度提高线路的功率传输水平、提高电力系统稳定性的能力逐渐得到体现。本文采用一种新型电力系统仿真工具箱PSAT,建立含静止无功补偿器(SVC)或可控串联补偿器(TCSC)的WSCC3机9节点电力系统仿真模型,对系统三相短路故障进行时域仿真,最后通过比较单个SVC、单个TCSC以及SVC和TCSC同时接入系统前后其电压和功角特性来分析SVC或TCSC的补偿作用及其交互影响。仿真结果表明:系统发生三相短路故障后,SVC能动态地补偿无功功率,保持系统的电压稳定性;TCSC能够有效提高系统的暂态稳定性(包括电压稳定性),缩短和降低系统扰动时的振荡时间和振荡幅度;SVC和TCSC联合补偿能够有效提高电力系统稳定性。
The FACTS devices can improve the level of power transmission and power system stability can be reflected gradually.Therefore,it gets more and mmore applications.The article adopts a new type of power system simulation toolbox （PSAT）,to establish the WSCC 3-generator and 9-bus test system simulation model which may be installed with Static Var Compensator （SVC） or Thyristor Controlled Series Compensation （TCSC）.After the system sustains three-phase short circuit fault,the compensation and interaction of SVC or TCSC can be studied by comparing with the voltage and angle characteristic curve of the system with an SVC,a TCSC or SVC and TCSC and the system without FACTS basing on the time domain simulation.The results of time domain simulation indicates that SVC could rapidly adjust reactive power to improve the system voltage stability effectively and TCSC can shorten oscillation time and decrease oscillation amplitude while the system is disturbed to improve the system transient stability effectively （including the voltage stability）.It also proves that the joint compensation of SVC and TCSC can improve the system stability effectively.
出处
《实验室研究与探索》
CAS
北大核心
2013年第9期76-80,共5页
Research and Exploration In Laboratory
基金
国家自然科学基金项目(60974005)
河南省教育厅自然科学基金(12A470008)
