JACIII Vol.9 No.3 pp. 226-234
doi: 10.20965/jaciii.2005.p0226


Improved ANN Based Tap-Changer Controller Using Modified Cascade-Correlation Algorithm

M. Fakhrul Islam, Joarder Kamruzzaman, and Guojun Lu

Gippsland School of Computing & Information Technology, Monash University, Churchill 3842, Australia

October 22, 2004
December 25, 2004
May 20, 2005
neural network application, cascade correlation, Bayesian regularization, transformers tap changers, voltage control
Artificial Neural Network (ANN) based tap changer control of closed primary bus and cross network connected parallel transformers has demonstrated potential use in power distribution system. In those research works the proposed ANN for application in this control were developed using various algorithms and concluded that a network trained by Bayesian Regularization (BR) backpropagation algorithm produced the best performance measured in terms of correct tap changing decisions. However, further improvement of ANN based transformer tap changer operation is always desirable. A general rule for obtaining good generalization is to use the smallest network that solves the problem. In this paper, we show that a small sized ANN is obtainable for further improvement of transformer tap changer operation by modifying the standard Cascade-Correlation algorithm. The modification incorporates weight smoothing of output layer weights in Cascade-Correlation learning using Bayesian frame work. Experimental results demonstrate that significant improvement in performance is achieved when an ANN is trained by modified Cascade-Correlation algorithm instead of standard Cascade-Correlation or Bayesian Regularization backpropagation algorithm. A comparison of performances of different algorithms in application to transformer tap changer operation is analyzed and the results are presented.
Cite this article as:
M. Islam, J. Kamruzzaman, and G. Lu, “Improved ANN Based Tap-Changer Controller Using Modified Cascade-Correlation Algorithm,” J. Adv. Comput. Intell. Intell. Inform., Vol.9 No.3, pp. 226-234, 2005.
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