Analysis of the UHV Tie Line Active Power Peak Value of Weak Interconnected Grids Following Power Shortage Disturbance in China Power System

  • Feng Hong
  • Jinfu Chen
  • Xianzhong Duan
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 138)


An ultra high voltage (UHV) AC tie line that connects North China and Central China power grid has been put into operation in 2009. This paper presents a method to calculate the peak value of active power oscillation of the UHV AC tie line following power shortage disturbance. The typical process of the oscillation on the UHV AC line is analyzed. It is shown that the active power oscillation on tie line of week connection grid is similar with the step response of the second-order system. The oscillation peak value is closely related to fault location, system inertia, and system inter-area damping. The method and analysis are tested in China system.


UHV AC tie line Oscillation Week connection system Oscillation peak value 


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Copyright information

© Springer-Verlag London Limited  2012

Authors and Affiliations

  1. 1.State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Electrical Power Security and High Efficiency LabHuazhong University of Science and TechnologyWuhanPeople’s Republic of China

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