Title :
Application of Energy-Based Power System Features for Dynamic Security Assessment
Author :
Geeganage, Janath ; Annakkage, U.D. ; Weekes, Tony ; Archer, Brian A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB, Canada
Abstract :
This paper presents a novel approach to enable frequent computational cycles in online dynamic security assessment by using the terms of the transient energy function (TEF) as input features to a machine learning algorithm. The aim is to train a single classifier that is capable of classifying stable and unstable operating points independent of the contingency. The network is trained based on the current system topology and the loading conditions. The potential of the proposed approach is demonstrated with the New England 39-bus test power system model using the support vector machine as the machine learning technique. It is shown that the classifier can be trained using a small set of data when the terms of the TEF are used as input features. The prediction accuracy of the proposed scheme was tested under the balanced and unbalanced faults with the presence of voltage sensitive and dynamic loads for different operating points.
Keywords :
learning (artificial intelligence); power system analysis computing; power system security; support vector machines; New England 39-bus test power system model; TEF; computational cycles; dynamic loads; energy-based power system features; input features; loading conditions; machine learning algorithm; online dynamic security assessment; prediction accuracy; support vector machine; system topology; transient energy function; unbalanced faults; unstable operating points; Computational modeling; Load modeling; Numerical stability; Power system stability; Security; Stability analysis; Training; Direct methods; machine learning; real-time security assessment; transient stability;
Journal_Title :
Power Systems, IEEE Transactions on
DOI :
10.1109/TPWRS.2014.2353048