Method of identifying weak transmission network stability boundaries

Methods of determining weak transmission stability boundaries are developed based on the strong controllability and observability properties of power systems. This theory has been previously applied to a dynamical model of the generators and network. It was established previously that the network an...

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Bibliographic Details
Published in:IEEE transactions on power systems 1993-02, Vol.8 (1), p.293-301
Main Authors: Lie, T., Schlueter, R.A., Rusche, P.A.E., Rhoades, R.H.
Format: Article
Language:English
Subjects:
240100 - Power Systems- (1990-)
CONTROL THEORY
Controllability
ELECTRIC POTENTIAL
ENERGY SYSTEMS
Load flow
MATHEMATICAL MODELS
Observability
Power system modeling
Power system stability
Power system transients
POWER SYSTEMS
POWER TRANSMISSION AND DISTRIBUTION
Propagation losses
Senior members
STABILITY
Stability analysis
Steady-state
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Summary:Methods of determining weak transmission stability boundaries are developed based on the strong controllability and observability properties of power systems. This theory has been previously applied to a dynamical model of the generators and network. It was established previously that the network and generator states associated with a cluster of generator and load buses surrounded by weak transmission boundaries are strongly controllable and observable for a single measurement and control at generators or load buses in that bus cluster. Such a bus cluster is called the control area. Two methods of determining control areas, where strong controllability and observability hold, are developed. Both methods attempt to determine weak transmission stability boundaries that encircle control areas. The groups of generators identified as belonging to each control area is identical to the groups of coherent generators determined using a RMS coherency measure evaluated for the set of all inertial load flow contingencies.< >
ISSN:0885-8950
1558-0679
DOI:10.1109/59.221228