The Application of Ucosφ Out of Step Criterion to the East China Power Grid

Abstract:

This paper analysis the characteristics of two-machine equivalent system in out of step state. According to variation in the out of step state, study the out of step criterion of .Use change area to determine whether the system is out of step, The criterion is simple and clear, and the concept is clear. It can distinguish the acceleration step and deceleration of step, and automatically adapt to system changes in the structure and Operation mode. The minimum voltage amplitude of the device installed is used for capture the oscillation center .The 2012 East China Power Grid, region A fleet out of step mode is simulated analyzed, It is verify that the criterion of accuracy and adaptability in the East China Power Grid.

• Periodical: Advanced Materials Research (Volumes 614-615)
• Pages: 1778-1783
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.614-615.1778
• Online since: December 2012
• Authors: Hui Min Fu, Dan Zhen Gu, Chun Jie Chen, Xiu Yang
• Keywords: Oscillation Center, Out of Step Criterion, Out of Step Operation, u cos φ, Voltage

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