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Fast voltage contingency screening using radial basis function neural network

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3 Author(s)
Jain, T. ; Electr. Eng. Dept., Madhav Inst. of Technol. & Sci., Gwalior, India ; Srivastava, L. ; Singh, S.N.

Power system security is one of the vital concerns in competitive electricity markets due to the delineation of the system controller and the generation owner. This paper presents an approach based on radial basis function neural network (RBFN) to rank the contingencies expected to cause steady state bus voltage violations. Euclidean distance-based clustering technique has been employed to select the number of hidden (RBF) units and unit centers for the RBF neural network. A feature selection technique based on the class separability index and correlation coefficient has been employed to identify the inputs for the RBF network. The effectiveness of the proposed approach has been demonstrated on IEEE 30-bus system and a practical 75-bus Indian system for voltage contingency screening/ranking at different loading conditions.

Published in:

Power Systems, IEEE Transactions on  (Volume:18 ,  Issue: 4 )