Volume 3 Number 4 (Aug. 2011)
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IJCEE 2011 Vol.3(4): 483-488 ISSN: 1793-8163
DOI: 10.7763/IJCEE.2011.V3.365

Comparative Study of Neuro Controller & Wavelet Transform for Shunt Active Filter in Reducing THD of a 3-Phase 4-Wire System

B. Suresh Kumar and K. Ramesh Reddy

Abstract—This paper presents an ANN & Wavelet controlled shunt active power filter used to compensate for total harmonic distortion in three-phase four-wire systems. The shunt active filter employs a simple method for the calculation of the reference compensation current based on Fast Fourier Transform. The presented Shunt Active Power filter is able to operate in balanced, unbalanced and Variable load conditions. Classic filters may not have satisfactory performance in fast varying conditions. But auto tuned active power filter gives better results for harmonic minimization, reactive power compensation and power factor improvement. The proposed auto tuned shunt active filter maintains the THD well within IEEE-519 standards. The proposed methodology is extensively tested for wide range of different Loads with Improved dynamic behavior of shunt active power filter using ANN & Wavelet controllers. The results are found to be quite satisfactory to mitigate harmonic Distortions, reactive power compensation and power factor correction thereby increase in Power Quality improvement and reduction in %THD.

Index Terms—Active power filter, Power quality improvement, Wavelet transform controller, ANN Controller,Power factor Correction, Reactive Power Compensation, THD.

B. Suresh Kumar EEE Dept, CBIT, Hyderabad-75 (mail:bskbus@gmail.com).
K. Ramesh Reddy is with EEE Department, GNITS, Hyderabad (Mail:kollirameshreddy@yahoo.co.in).

Cite: B. Suresh Kumar and K. Ramesh Reddy, "Comparative Study of Neuro Controller & Wavelet Transform for Shunt Active Filter in Reducing THD of a  3-Phase  4-Wire  System,"  International  Journal  of  Computer
and Electrical Engineering
vol. 3, no. 4, pp. 483-488, 2011.

General Information

ISSN: 1793-8163 (Print)
Abbreviated Title: Int. J. Comput. Electr. Eng.
Frequency: Quarterly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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