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《Proceedings of the Csee》 1993-03
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A New Method for Quantitative Assessment of the Transient Stability of Power Systems-Trajectory Analysis Method

Mu Gang Wang Zhonghong Han Yingduo Huang Mei E. E. Department of Tsinghua University  
A new transient stability analysis method, Trajectory Analysis Method (TAM), is presented. This method is based on the transient energy function and used to analyze the output data of traditional transient stability program and provide stability index S1 and instability index Ui for each generator i. The drawback of numerical simulation method, that is the stability degree of each generator can not be quantitatively assessed, :is overcome by the TAM. By use of the TAM, the output data of the transient stability program (numerical simulation based) can be automatically analyzed by computer and the stability index which reflects the stability degree of each generator can be provided. The efficiency for analyzing the output of transient stability program is improved both qualitatively and quantitatively by the TAM. The indices provided in this paper are better than those presented by Fouad et al. The stability measurement function is also defined.
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