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
Published in:
Power Systems, IEEE Transactions on
(Volume:4
,
Issue:
2
)
Date of Publication: May 1989