Paper Info
Title
Intelligent Harmonic Suppressor By Adaptive Fuzzy Controller For Pec9 Inverter Under Unknown Nonlinear Loads
Abstract
The presence of nonlinear loads challenges the power quality regulation in stand-alone and grid-connected converters. Employing bulky passive or active filters is common to filter out the harmonics; but this is a costly solution. In this paper, an Intelligent Harmonic Suppressor (IHS) using fuzzy control theory and Second Order Band Pass Filter (SOBPF) is proposed to mitigate the harmonics caused by unknown nonlinear loads in a stand-alone nine-level Packed E-Cell (PEC9) inverter. PEC9 is a promising multilevel topology which can generate a quasi-sinusoidal voltage waveform only by a single dc source. In the proposed IHS technique, PEC9 is forced by the fuzzy controller to track the desired current reference that is provided by an adaptive control law based on the load impedance. Simulation results verify that since the undesired harmonics emerge in the measured signals applied to the control loop, using SOBPF before the fuzzy control inputs notably reduces THD while the references for the load current and the auxiliary dc capacitors voltages are accurately tracked.
Year
DOI
Venue
2020
10.1109/IECON43393.2020.9254867
IECON 2020: THE 46TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY
Keywords
DocType
ISSN
Power Quality, Fuzzy Control, Second Order Band Pass Filter, Nine-Level Packed E-Cell (PEC9) Inverter, Harmonics, Multilevel Converters, THD, Nonlinear Load
Conference
1553-572X
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
Mohammad Babaie131.76
K. Al-Haddad2795139.12