Estimation of Power Factor by the Analysis of Power Quality Data for Voltage Unbalance

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Paracha, Zahir Javed, Kalam, Akhtar ORCID: 0000-0002-5933-6380, Mehdi, Ahmed M and Amanullah, M. T. O (2009) Estimation of Power Factor by the Analysis of Power Quality Data for Voltage Unbalance. In: 2009 Third International Conference on Electrical Engineering (ICEE 2009). IEEE, USA.


Power quality (PQ) has been identified as a complex and diversified problem across the board in electrical power industry. It has not only confused the power utilities but also has attracted the attention of its customers and equipment manufacturers. Although extensive research work is being done in this field but one of the main problem encountered by its stake holders is the voltage unbalance in electrical power system. The problem of voltage unbalance has affected the safety, reliability and economic efficiency at all levels in power industry. In this research computational intelligence techniques have been used for efficiently predicting the power factor of unbalanced load of a power distribution system. The principal component analysis technique was used to find the optimized number of new dimensions of PQ data. Finally feed forward back propagation (FFBP) algorithm was used to estimate the power factor of a distribution network by analyzing the real power system parameters. This research highlights the importance of maintaining power factor close to unity for power utilities to achieve sustainable availability of quality supply of electrical power for its customers. The outcomes of the proposed techniques were compared and tested with the field results of a power utility in Victoria, Australia. Proceedings of the 3rd international conference on electrical engineering (ICEE '09), University of Engineering and Technology, Lahore, Pakistan, 9-11 April 2009.

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Item type Book Section
DOI 10.1109/ICEE.2009.5173178
Official URL
ISBN 9781424443604 (print) 9781424443611 (online)
Subjects Historical > FOR Classification > 0906 Electrical and Electronic Engineering
Historical > Faculty/School/Research Centre/Department > School of Engineering and Science
Keywords ResPubID19234, power quality, voltage unbalance, unbalanced loads, principal component analysis
Citations in Scopus 5 - View on Scopus
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