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Trajectory approximations for direct energy methods that use sustained faults with detailed power system models

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5 Author(s)
Sauer, P.W. ; Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA ; Behera, A.K. ; Pai, M.A. ; Winkelman, J.R.
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The authors address the effects of fast dynamics on direct energy methods that use a sustained fault trajectory to approximate critically cleared trajectories and the corresponding critical energies. Integral manifold concepts are used to explain why fast dynamics can destroy such an approximation. Methods to remedy this problem are given and illustrated with a ten-machine example

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Power Systems, IEEE Transactions on  (Volume:4 ,  Issue: 2 )