Mitigation of Harmonic Current Using Active Filter with Fuzzy Control in Distribution System

Authors

  • N. Gurumohan Reddy  PG scholar, Department of Electrical and Electronics Engineering, JNTUA Anantapur, India
  • Dr. K. Jithendra Gowd  Assistant Professor, Department of Electrical and Electronics Engineering, JNTUA Anantapur, India

Keywords:

Active filter, harmonic resonance, voltage distortion, Fuzzy Control

Abstract

Maintaining voltages within tolerable limits is of prime importance in distribution system . Voltage distortion due to harmonics is main concern which affects the distribution voltages to fall out of limits. A shunt connected active filter with Fuzzy logic controller is able to suppress harmonic resonance within the distribution facility. However, inherent phase-lagging in digital signal processing of active filter affects its functioning which might induce unintentional harmonic amplification at alternative locations within the feeder . This paper presents an active filter with fuzzy control to suppress harmonic resonance.. The current control is realized by parallel-connected band pass filters tuned at harmonic frequencies to ensure that the active filter functions as an approximately pure conductance. The electrical phenomenon at dominant harmonic frequencies is individually and dynamically adjusted to ensure the damping performance. Additionally, so as to handle the harmonic resonance, the load distributed-parameter model of a radial feeder is developed with considering harmonic damping by variable electrical phenomenon and admittance, separately. Simulation results show that the active filter with fuzzy control will effectively reduce voltage harmonic distortions. Simulation was done by using MATLAB/Simulink software

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International Journal of Scientific Research in Science and Technology

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Published

2017-10-31

Issue

Volume 3, Issue 7, September-October-2017

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Research Articles

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[1]
N. Gurumohan Reddy, Dr. K. Jithendra Gowd, " Mitigation of Harmonic Current Using Active Filter with Fuzzy Control in Distribution System, International Journal of Scientific Research in Science and Technology(IJSRST), Online ISSN : 2395-602X, Print ISSN : 2395-6011, Volume 3, Issue 7, pp.223-231, September-October-2017.