Importance of Active Filters for Improvement of Power Quality

  ijett-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2013 by IJETT Journal
Volume-4 Issue-4                       
Year of Publication : 2013
Authors : Sandeep G J S M , Sk Rasoolahemmed


Sandeep G J S M , Sk Rasoolahemmed. "Importance of Active Filters for Improvement of Power Quality". International Journal of Engineering Trends and Technology (IJETT). V4(4):1164-1171 Apr 2013. ISSN:2231-5381. published by seventh sense research group.


The Problems due to Harmonics and reactive power loses has been pertaining from the decades. Since many methods are proposed to reduce those above mentioned problems. one of the best method is employing Active Filters for the elimination of Harmonics and compensation of reactive power problems . This paper mainly explains about the new AF technology and different topologies utilizing in the present scenario, economical approach etc for the improvement of power quality. Presently many countries has been using this AF technology, because of its capacity to eliminate the harmonics up to 2 5 th level & more and also size of filter is also reduced.


[1] B.M. Bird, J.F. Marsh, and P.R. McLellan, “Harmonic reduction in multiple converters by triple - frequency current injection”, IEEE Proc . 116 (10), 1730 – 1734 (1969).
[2] H. Sasaki and T. Machida, “A new method to eliminate ac harmonic currents by magnetic compensation - consideration on basic design”, IEEE Trans. Power Appl. Syst. 90 (5), 2009 – 2019 (1971).
[3] A. C. Liew, “Excessive neutral currents in three - phase fluorescent lighting circuits,” IEEE T rans. Ind. Applicat. , vol. 25, pp. 776 – 782, July/A ug. 1989.monitoring,” Elect. Mach. Power Syst. , vol. 20, pp. 93 – 102, 1992.
[4] H. Akagi, E. Watanabe, and M. Aredes, Instantaneous power theory and applications to power conditioning , ser. Power Engineering. Piscataway, NJ: IEEE Press, 2007.
[5] B. Si ngh, K. Al - Haddad, and A. Chandra, “A review of active filters for power quality improvement,” IEEE Trans. Ind. Electron. , vol. 46, no. 5, pp. 960 – 971, Oct. 1999.
[6] B. R. Lin and C. H. Huang, “Implementation of a three - phase capacitor clamped active po wer filter

Voltage source inverter , current source inverter , A ctive power line conditioners, H arm onics and R eactive power compensation, Active power filters , power quality