摘要
针对华东电网可能产生的次同步振荡（ＳＳＯ）问题，利用机组作用系数法（ＵＩＦ）研究了三峡直流输电对华东电网次同步振荡的影响，研究表明，直流输电线路与华东电网内发电机组的相互作用很弱，不会引起华东电网内的发电机组的次同步振荡。利用频率扫描分析法研究了由阳城至淮阴串联补偿线路引起的次同步谐振（ＳＳＲ）问题，研究表明，阳城电厂机组在次同步频率下有一电气谐振点，但阳城电厂机组不会发生异步发电机效应。
This paper first analyzes the SSO characteristics caused by the Ge Nan HVDC link and the Three Gorges HVDC link using the UIF method,then analyzes the SSR characteristics caused by Yangcheng Huaiyin 500kV series compensation line using the frequency scanning method.The result shows that the interactions between the HVDC links and the generators in East China electric power system are very low,so it′s unlikely that the generators in East China electric power system will be SSO unstable.To Yangcheng power plant,the result shows that there is only one electric resonant point in the subsynchronous frequency range,but it doesn′t indicate an induction generator effect.
出处
《电网技术》
EI
CSCD
北大核心
1999年第7期20-23,共4页
Power System Technology
基金
国家自然科学基金
关键词
电网
次同步振荡
串联补偿
直流输电
East China power system
SSO
series compensation
HVDC
