10GW级特高压直流接入点的选择对重庆电网受端系统稳定性的影响  

Influence of Selection of Connecting Position for UHVDC Transmission Line With Transmission Capacity of 10 GW on the Stability of Receiving-End System in Chongqing Power Grid

作　　者：彭卉[1] 张鑫[2] 李亚军[1] 陶凛 

机构地区：[1]重庆市电力公司,重庆市渝中区400014 [2]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2011年第11期25-28,共4页Power System Technology

摘　　要：以重庆电网2015年丰大方式数据为基础,针对大功率穿越重庆电网的特点,从多个角度研究准东—重庆±1 000 kV特高压直流接入对重庆电网受端系统稳定性可能产生的各种影响。分析直流不同接入点情况下重庆电网交流故障对直流系统稳定性的影响、特高压直流故障对四川水电外送的影响及不同负荷方式下直流接入的适应性,并根据结果提出应加快特高压网架建设的建议。Based on the summer peak load operation mode of Chongqing power grid in 2015 and in allusion to the features of high power riding-through Chongqing power grid, possible influences of connecting ± 1 000 kV DC transmission line from Zhundong to Chongqing into Chongqing power grid on the stability of receiving-end system in Chongqing power grid are researched in various aspects. The influences of AC transmission line faults occurred in Chongqing power grid on the stability of ±1 000kV DC transmission system under different connecting position for UHVDC transmission line and the influence of faults occurred in UHVDC system on outward transmission of electric power generated by hydropower stations in Sichuan province as well as the adaptability of connecting-in UHVDC transmission lines under various load modes are analyzed. Based on the analysis, the suggestion that the construction of UHV network should be speeded up is put forward.

关 键 词：±1 000 kV特高压直流输电 最大传输功率 系统安全稳定性 

分 类 号：TM715[电气工程—电力系统及自动化]