Title
4-leg shunt active power filter with hybrid predictive fuzzy-logic controller
Abstract
Distribution networks commonly utilize three-phase four-wire systems, especially for low-voltage industrial and residential customers. Due to the rapid increase of nonlinear and unbalanced reactive loads in such systems, several power quality issues arise. Among them, line current harmonics, unbalanced load currents, noticeable neutral current and low power-factor. This paper presents a 4-leg shunt active power filter (APF) featuring reactive power compensation, line current harmonics mitigation, neutral-current reduction and system load-currents balancing. The authors propose hybrid controller for the 4-leg shunt APF: Fuzzy Logic Control (FLC) for the DC-link voltage and predictive control for the grid current. The DC-link voltage FLC handles the system uncertainties and nonlinearities, hence improving the transient performance. In addition, the proposed predictive current control technique features phase locked loop (PLL) independency. Moreover, the proposed hybrid controller necessities sensing only the grid voltage and current, hence less number of sensors are required.In addition, implementation simplicity and cost reduction are achieved. The proposed controller is simulated using Matlab/Simulink® package. For effectiveness verification, system performance is investigated under several loading conditions.
Year
DOI
Venue
2014
10.1109/ISIE.2014.6864947
ISIE
Keywords
Field
DocType
active filters,distribution networks,fuzzy control,power control,power filters,predictive control,dc link voltage,hybrid controller,hybrid predictive fuzzy logic controller,line current harmonics mitigation,neutral current reduction,phase locked loop,reactive power compensation,shunt active power filter,system load currents balancing,4-leg shunt active power filter,fuuzy logic control,harmonic compensation,power quality,predictive current control,niobium,reactive power,harmonic analysis
Control theory,Control theory,Power control,Volt-ampere,Model predictive control,Voltage optimisation,Power factor,Control engineering,AC power,Electronic engineering,Harmonics,Engineering
Conference
ISSN
Citations 
PageRank 
2163-5137
0
0.34
References 
Authors
5
3
Name
Order
Citations
PageRank
Fahmy, A.M.131.06
Abdelsalam, A.K.231.76
Kotb, A.B.300.34