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Training and optimization of an artificial neural network controlling a hybrid power filter

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3 Author(s)
van Schoor, G. ; Sch. for Electr. & Electron. Eng., Potchefstroom Univ., South Africa ; van Wyk, J.D. ; Shaw, I.S.

A hybrid power compensator (HPC) consisting of a static VAr compensator and a dynamic compensator needs to be optimally controlled during the compensation of nonlinear loads. The HPC must be controlled to meet minimum requirements in terms of power factor and harmonic distortion, while at the same time minimizing its total cost. An artificial neural network (ANN) is used to control the HPC amidst a very dynamic power system environment. The performance of a reference ANN is evaluated while controlling an HPC connected to a typical nonlinear industrial load. The training and performance of the ANN is then optimized in terms of training set size, training set packing and ANN topology and the performance compared to the reference ANN. This paper highlights the importance of optimising the mentioned ANN parameters to achieve optimum ANN training and modeling accuracy. The results obtained reveals that the application of an ANN in controlling an HPC is feasible given that the ANN parameters are chosen appropriately.

Published in:

Industrial Electronics, IEEE Transactions on  (Volume:50 ,  Issue: 3 )

Date of Publication:

June 2003

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