SVC控制引起的电压振荡失稳研究

被引:9
作者
顾伟
蒋平
唐国庆
机构
[1] 东南大学电气工程系
关键词
电压崩溃; 振荡型电压失稳; 鞍结分岔; Hopf分岔; 分岔控制; SVC; 负荷极限;
D O I
暂无
中图分类号
TM712 [电力系统稳定];
学科分类号
摘要
在发生电压崩溃的单机-动态负荷系统中,采用传统SVC控制器(静止无功补偿器)提高其电压稳定性。研究表明SVC控制可以延迟系统鞍结分岔点,大大提高系统电压稳定性。但新状态变量的引入改变了系统特性,使得系统在发生鞍结分岔之前,先经历一个Hopf分岔。时域仿真表明,此Hopf分岔诱导系统发生振荡型电压失稳,系统的负荷极限由Hopf分岔参数决定。因此,在使用FACTS控制器提高系统电压稳定性时,要详细考虑其对系统中各种分岔的影响,综合优化控制器的设计和安装。
引用
收藏
页码:19 / 23
页数:5
相关论文
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