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Determination of transient stability regions in state space using local Lyapunov surfaces

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1 Author(s)
Eskicio¿¿lu, A.M. ; Middle East Technical University, Computer Engineering Department, Ankara, Turkey

A new approach to the determination of stability regions of multimachine electric power systems is presented, using a Lyapunov function in conjunction with a certain class of unstable equilibrium points. The relevant Lyapunov surface is constructed for each fault, which is considered to be a local approximation to the stability region. Comparison shows that the conservative nature of the second method of Lyapunov is eliminated.

Published in:

Generation, Transmission and Distribution, IEE Proceedings C  (Volume:134 ,  Issue: 3 )