An overview of four-leg converters: Topologies, modulations, control and applications

F Rojas, R Cárdenas, C Burgos-Mellado… - IEEE …, 2022 - ieeexplore.ieee.org
In three-phase unbalanced systems, where the circulation of zero sequence current is
necessary, four-leg converters provide a neutral connection for single-phase or other …

Application of shunt active power filter for harmonic reduction and reactive power compensation in three‐phase four‐wire systems

LB Garcia Campanhol, SA Oliveira da Silva… - IET Power …, 2014 - Wiley Online Library
This study deals with the analysis and implementation of compensation algorithms applied
to a shunt active power filter, which uses three single‐phase full‐bridge converters sharing …

Selective compensation of distortion, unbalanced and reactive power of a thyristor-controlled LC-coupling hybrid active power filter (TCLC-HAPF)

L Wang, CS Lam, MC Wong - IEEE Transactions on Power …, 2017 - ieeexplore.ieee.org
When the load generated harmonic, unbalanced, and reactive power is beyond the limited
capacity of a thyristor-controlled LC-coupling hybrid active power filter (TCLC-HAPF), the …

Optimization algorithm for selective compensation in a shunt active power filter

JC Alfonso-Gil, E Pérez, C Ariño… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
This paper proposes an optimization algorithm based on linear matrix inequalities (LMIs) to
be implemented in a shunt active power filter (SAPF) enabling it to perform a selective …

Improved shunt active power compensator for IEEE standard 1459 compliance

S Orts-Grau, FJ Gimeno-Sales… - … on Power Delivery, 2010 - ieeexplore.ieee.org
This paper presents the simulated and experimental results of an improved shunt active
power compensator (SAPC). The proposed power compensator achieves IEEE Standard …

Enhanced grid fundamental positive-sequence digital synchronization structure

JC Alfonso-Gil, JJ Vague-Cardona… - … on Power Delivery, 2012 - ieeexplore.ieee.org
The second-order generalized integrator (SOGI) filter and delayed signal cancellation (DSC)
structures have been used separately in order to improve the synchronization systems …

Robust control of shunt active power Filters: A dynamical model-based approach with verified controllability

JH Urrea-Quintero, N Muñoz-Galeano… - Energies, 2020 - mdpi.com
This paper presents the robust control of Three-Leg Split-Capacitor Shunt Active Power
Filters (TLSC SAPFs) by means of structured H∞ controllers for reactive, unbalanced, and …

Comprehensive definitions for evaluating harmonic distortion and unbalanced conditions in three-and four-wire three-phase systems based on IEEE standard 1459

S Mohamadian, A Shoulaie - IEEE transactions on power …, 2011 - ieeexplore.ieee.org
So far, various studies are carried out in the field of unbalance decomposition from harmonic
distortion in three-phase systems, and several criteria are proposed to express the value of …

Optimized compensation of unwanted current terms by AC power converters under generic voltage conditions

DI Brandao, H Guillardi… - IEEE Transactions …, 2016 - ieeexplore.ieee.org
This paper formulates an optimization-based algorithm for the compensation of unwanted
current terms by means of distributed electronic power converters, such as active power …

[PDF][PDF] CPC–based reactive balancing of linear loads in four-wire supply systems with nonsinusoidal voltage

LS Czarnecki - Organ, 2019 - pe.org.pl
The paper provides the Currents' Physical Components (CPC)-based fundamentals for
reactive balancing of unbalanced loads supplied by a nonsinusoidal voltage in four-wire …