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《Journal of Tsinghua University(Science and Technology)》 1991-04
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An Eigen -Structure Analysis Method of the Steady-state Voltage Stability in Multimachine Systems

Feng Zhihong School of Economics and Management Liu Qu, Zhou Shuangxi, Ni Yixin, Huang Mei Department of Electrical Engineering  
This paper proposes classification and definitions of voltage stability and presents a new analytical method called eigen-structure analysis of the steady-state voltage stability in multimachine systems. It not only can be used to calculate the steady-state voltage stability margin, but also to compute the sensitivity of the stability margin to system state variables and controlled variables directly. In the meantime, this method can identify the characteristic of multisolutions of load flow correctly. The proposed method is practical and efficient in computation as well as comprehensive in use.
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