Power quality is a pressing concern and of the utmost importance for advanced and high-
tech equipment in particular, whose performance relies heavily on the supply's quality …

During the last half century the Power Quality (PQ) related problems have become important
issues. Many solutions have been proposed to address the PQ problems. The most …

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 …

Analysis and control of a dynamic voltage restorer are described. The voltage restorer is
based on a four-leg voltage source converter. The three-phase input variables are resolved …

In this paper, we present two modulation schemes for generating unbalanced voltages by
means of four-leg voltage-source inverters. The first modulation is an extended scheme of a …

This paper proposes three dynamic voltage restorer (DVR) topologies. Such configurations
are able to compensate voltage sags/swells in three-phase four-wire (3P4W) systems under …

This paper addresses the event-triggered secondary control problem for islanded microgrid
with disturbances. Adaptive distributed control law is proposed for regulating voltage and …

This work studies three-phase four-wire dynamic voltage restorers (DVRs) based on a
cascade of open-end winding transformers. The possible proposed topologies can be …

The equivalent circuit of a three-leg, four-wire voltage source converter (VSC) is derived
using switching functions. Simulations and experiments are conducted (i) to investigate the …

Power quality is a pressing concern and of the utmost importance, for advanced and high-11
tech equipment in particular, whose performance relies heavily on the supply's quality …