现代电力2011,Vol.28Issue(6):17-22,6.
特高压直流输电接入江西电网动态电压稳定分析
Dynamic Voltage Stability Analysis on UHVDC Accessing to Jiangxi Power Grid
摘要
Abstract
In the background of UHVDC transmission line accessing to Jiangxi power grid, on the basis of Jiangxi power system planning data, the dynamic voltage stability of Jiangxi power grid is analyzed by using of BPA. With stable curve analysis tool, based on dynamic voltage stability criterion, simulation results show that when three-phase short circuit fault occurs on all the 500kV and above transmission lines in Jiangxi grid system (except Gan Gaoan, Gan Luzhou, Gan Xinyu), no measures need to be taken for Jiangxi power grid, and the dynamic voltage of the hub buses is stable. Voltage instability occurs in Gan converter bus when three-phase short circuit fault occurs in Gan Gaoan, Gan Luzhou, or Gan Xinyu, and the instability disappears by DC power modulation. The voltage level of Gan converter bus is slightly higher when block fault occuring in DC system, and the voltage level recoved to standard normal by removing reactive power compensation.关键词
特高压直流输电/动态电压稳定/直流功率调制/直流闭锁Key words
UHVDC/dynamic voltage stability/ DC power modulations DC block分类
信息技术与安全科学引用本文复制引用
蔡恒,刘东兴,刘崇茹,韩民晓,王康..特高压直流输电接入江西电网动态电压稳定分析[J].现代电力,2011,28(6):17-22,6.基金项目
国家自然科学基金项目(50807013) (50807013)
中央高校基本科研业务费专项资金资助(10ZG02) (10ZG02)
教育部"111"引智项目(B08013)) (B08013)