摘要
随着社会用电需求及工业负荷的快速增长,某区域内无功电源配置不足,电压支撑能力较弱,某特高压换流站局部地区动态无功不足的问题突出,尤其是站点近端发生交流故障后,负荷区域电压大幅度跌落,致使暂态电压稳定问题成为威胁该区域电网安全稳定运行的严重问题之一。就大电网发生故障后,特高压换流站STATCOM装置对暂态电压稳定性和负荷裕度、特高压直流输电系统运行环境所提供的作用进行仿真研究。
With the rapid growth of social electricity demand and industrial load,the configuration of reactive generation in a certain area is insufficient,and the voltage support capability is weak.The problem of insufficient dynamic reactive power in some areas of an UHV converter station is particularly prominent,especially at the near end of the site.After an AC fault occurs,the voltage in the load area drops sharply,therefore transient voltage instability becomes one of the serious problems threatening safe and stable operation of regional power grid.This paper conducts a simulative study on the role of STATCOM device in UHV converter station on transient voltage stability,load margin,and operating environment of the UHV DC transmission system under the condition of large grid fault.
作者
潘立邦
游俊良
肖志超
PAN Libang;YOU Junliang;XIAO Zhichao(Guangzhou Bureau,CSG EHV Power Transmission Company,Guangzhou 510700,China)
出处
《电工技术》
2023年第23期150-152,共3页
Electric Engineering
