Systematic Determination of Discrepancies Across Transient Stability Software Packages

Several transient stability software packages are widely used for power grid planning and operations. Prior research and software documentations have shown that packages can vary in the implementations of dynamic models, and hence could potentially yield different results for the same system simulat...

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Bibliographic Details
Published in:IEEE transactions on power systems 2016-01, Vol.31 (1), p.432-441
Main Authors: Shetye, Komal S., Overbye, Thomas J., Mohapatra, Saurav, Ran Xu, Gronquist, James F., Doern, Terry L.
Format: Article
Language:English
Subjects:
Commercial software packages
Computer programs
data mining
Dynamic models
Dynamical systems
Dynamics
Generators
Load modeling
Methodology
Packages
Power system stability
power system transient stability
simulations
Software packages
Stability analysis
Transient analysis
Transient stability
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Summary:Several transient stability software packages are widely used for power grid planning and operations. Prior research and software documentations have shown that packages can vary in the implementations of dynamic models, and hence could potentially yield different results for the same system simulation. This paper presents a systematic methodology to determine the sources of the discrepancies seen in results obtained from different transient stability packages. This methodology can be applied to various types of dynamic models and is illustrated with generator-associated dynamic models in this paper. Consistent metrics, data mining techniques, and engineering heuristics are used to determine the discrepancy sources. This hybrid top-down+bottom-up method has been implemented on a practical, large-system case to demonstrate its scalability and transferability to real-world system studies.
ISSN:0885-8950
1558-0679
DOI:10.1109/TPWRS.2015.2393813