A BCU method for direct analysis of power system transientstability
Hsiao-Dong Chiang; Wu, F.F.; Varaiya, P.P.
Power Systems, IEEE Transactions on
Volume 9, Issue 3, Aug 1994 Page(s):1194 - 1208
Digital Object Identifier 10.1109/59.336079
Summary:A boundary of stability region based controlling unstable
equilibrium point method (BCU method) for direct analysis of power
system transient stability is presented. Features distinguishing the BCU
method from the existing direct methods are that it consistently finds
the exact controlling unstable equilibrium point (UEP) relative to a
fault-on trajectory and that it has a sound theoretical basis. Moreover,
the BCU method appears to be fast. This method is based on the
relationship between the boundary of stability region of a power system
and that of a reduced system. The BCU method finds the controlling UEP
of the original system via a reduced system whose controlling UEP is
easier and cheaper to compute. Effective numerical schemes to speed up
the presented method are also proposed. This method has been tested on
several power systems with very promising results. Simulation results on
a 50 generator, 145 bus system are presented along with a comparison
between the results obtained using the BCU method and another existing
method
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