文档介绍：第 27 卷第 1 期中国电机工程学报 Jan. 2007
2007 年 1 月 Proceedings of the CSEE ©2007 .
文章编号:0258-8013 (2007) 01-0001-07 中图分类号:TM74 文献标识码:A 学科分类号:470×40
大区电网互联对电力系统动态稳定性的影响
朱方1,赵红光 1,刘增煌 1,寇惠珍 2
(,北京市海淀区 100085;2. 国家电力调度通信中心,北京市宣武区 100031)
The Influence of Large Power Grid Interconnected on
Power System Dynamic Stability
ZHU Fang1, ZHAO Hong-guang1, LIU Zeng-huang1, KOU Hui-zhen2
(1. China Electric Power Research Institute, Haidian District, Beijing 100085, China;
2. National Electric Power Dispatching munication Center, Xuanwu District, Beijing 100031,China )
ABSTRACT: This paper is focused on the new issues of low 到 2005 年超过 500GW,居世界第 2 位,电力系统
frequency oscillation brought about by area grid 的规模也从小型电力系统发展为省(市)、地区级电
interconnection. The characteristics of inter-area oscillation 力系统,进而发展为省级电网互联的大区电力系统,
mode are discussed. Strategies on improving the dynamic
近几年来又形成了大区电网相联的互联电力系统。
stability of interconnected grids are summarized. The negative
damping effect caused by automatic voltage regulator (AVR) in 20 世纪 80 年代以前,在形成省级电网和省级
the Excitation System is still the main cause for low frequency 电网间互联的大区电力系统过程中,动态稳定问题
oscillation in interconnected power system. PSS has been 没有显现出来,暂态稳定问题是最主要的问题。其
proved to be the most economical and effective equipment for 主要原因是当时的发电机励磁系统以有励磁机的常
damping low frequenc