摘要
随着长三角地区电力负荷的增长以及西部水电资源的大力开发,我国中路远距离"西电东送"规模迅速扩大,大容量电力由高压直流输电(HVDC)输送。长三角地区即将成为一个具有多馈入直流系统的负荷中心,直流系统输送容量之大、落点之密集在国际上不多见。对长三角多馈入直流输电系统的概况及其特点进行了介绍。描述了多馈入直流输电系统各种相互作用特性,并对研究不同相互作用的研究方法、分析工具和评估指标进行了评述。在此基础上,针对长三角多馈入直流输电系统的特点,对其交直流系统间相互作用的特性及其研究方法给出了一些思路。
With growth of load in the Yangtze River Delta region and the rapid development of hydropower in West China, the scale of the middle passage of ＂West-to-East power transmission＂ is expanding quickly, of which the large capacity power are transmitted by HVDC. So the Yangtze River Delta region will become a load center with muhi-infeed HVDC systems, the large transmission capacity and the intensive landing points of which are very rare in the world. The multi-ilffeed HVDC systems in the region and their characteristics were presented, and various interaction characteristics among the systems were analyzed. The related study methods, analysis tools, and assessment indicators were also reviewed. Based on that, ideas on study of interaction characteristics of the AC/DC systems in the region were proposed.
出处
《华东电力》
北大核心
2009年第7期1170-1174,共5页
East China Electric Power
关键词
多馈入直流输电系统
电压稳定性
暂态过电压
谐波稳定性
次同步振荡
换相失败
multi-infeed HVDC transmission system
voltage stability
transient overvohage
harmonic stability
subsynchronous oscillation
commutation failure
