Cascaded Multilevel Inverter based Active Filter for Power Line Conditioners using Instantaneous mitigates

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2016 by IJETT Journal
Volume-35 Number-10
Year of Publication : 2016
Authors : Mandadi Surender Reddy, Vigrahala Srikanth
  10.14445/22315381/IJETT-V35P292

MLA 

Mandadi Surender Reddy, Vigrahala Srikanth"Cascaded Multilevel Inverter based Active Filter for Power Line Conditioners using Instantaneous mitigates", International Journal of Engineering Trends and Technology (IJETT), V35(10),460-464 May 2016. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
This paper presents a three-phase, fivelevel cascaded multilevel voltage source inverter based active filter for power line conditioning to improve power quality in the distribution network. The active filter compensates both reactive power and harmonic currents drawn by non-linear loads; additionally it facilitates power factor corrections. The compensation process is based on concept of pq theory. However, in the proposed approach only calculation of real power (p) losses are conducted. This method is simple and different from conventional methods; it provides effective compensation for harmonics. The cascaded multilevel inverter switching signals are derived from the proposed Fuzzy logic controller that results in a good dynamic performance under both steady state and transient operations. The dc-bus capacitor voltage of the cascaded inverter is controlled and reduced ripple voltage using PI-controller. This proposed cascaded active power filter system is validated through extensive simulation under transient and steady state conditions with different non-linear loads and mitigate thee faults in transmission line. Faults (L-G, 2L-G).

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Keywords
Shunt Active Filter, Instantaneous power theory, Power quality, Triangular-sampling current modulator.