JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE)

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Study on lowfrequency oscillitory analysis of the interconnectedpower grids of north China and central China

ZHAO Yi-shu1,NIU Xin-sheng1,ZANG Hong-zhi1,WANG Bo2,   

  1. 1. Shandong Electric Power Institute,Jinan 250002, China; 2. Bainian Electric Power Corporation,Yantai 265700,China
  • Received:2006-02-19 Revised:1900-01-01 Online:2006-12-24 Published:2006-12-24
  • Contact: ZHAO Yi-shu

Abstract: Smallsignal stability of power system is one of the preconditions for connecting large area electric power grids running in China. Based on the eigenanalysis method for multimachine electric power systems, the smallsignal stabilities (more emphases is given to lowfrequency oscillatory study) of the connected north China (including Shandong power network) and central China (including Sichuan and Chongqing power networks) power grids were studied using the Power System Analysis Software Package (PSASP). The analyses of oscillatory modeshapes for each lowfrequency oscillatory mode were put forward. The directional guidance was provided for installing and setting power system stabilizers.

Key words: oscillatory mode, oscillatory mode shape , lowfrequency oscillation

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