By Topic

A Wavelet-ANN Technique for Locating Switched Capacitors in Distribution Systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Abu-Elanien, A.E.B. ; Electr. & Comput. Eng. Dept., Univ. of Waterloo, Waterloo, ON ; Salama, M.M.A.

With an increase in usage of sensitive electronic loads and adjustable speed drives, utilities and customers have paid more attention to power-quality (PQ) problems. Shunt capacitor switching is one of the PQ problems that causes a wide band of high-frequency transients in voltage and current signals which harmfully affect these types of sensitive loads. This paper presents an efficient technique for locating switched capacitors in the industrial distribution systems using discrete wavelet transform (DWT) integrated with a feedforward artificial neural network (FFANN). The technique relays on combining the three-phase currents at the customer side to construct one modal current signal, and then the DWT is used to capture the high-frequency current transients contained in this modal signal. The energy contained in the high-frequency current transients and the transient duration, converted into the number of samples, for two DWT decomposition levels, is used to feed an FFANN to classify the switched capacitor. The simulations are performed using PSCAD/EMTDC and the results are then interfaced to MATLAB, where the technique is implemented. It is found that the technique gives reliable results for locating switched capacitors.

Published in:

Power Delivery, IEEE Transactions on  (Volume:24 ,  Issue: 1 )