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International Journal of Power Management Electronics
Volume 2008 (2008), Article ID 147359, 6 pages
Research Article

Area-Based Approach in Power Quality Assessment

1Electrical Engineering Department, Hooghly Engineering and Technology College, Hooghly, West Bengal 712103, India
2Department of Applied Physics, University of Calcutta, 92 Acharya Prafulla Chandra Road, Kolkata 700009, India

Received 28 May 2007; Revised 10 March 2008; Accepted 11 May 2008

Academic Editor: Subhashish Bhattacharya

Copyright © 2008 Surajit Chattopadhyay et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper presents an approach for assessment of power quality parameters using analysis of fundamental and harmonic voltage and current waveforms. Park transformation technique has been utilized for the analysis in three-phase system, which has reduced the computational effort to a great extent. Contributions of fundamental and harmonic components in power system voltage and current signals have been assessed separately. An algorithm has been developed to calculate the power quality parameters from online signals. This algorithm has been simulated for a radial system, and the results have been compared with that obtained from a standard FFT-based system. The results are seen to be in good agreement with that of the standard system.