Control strategy for flexible microgrid based on parallel line-interactive UPS systems

JM Guerrero, JC Vasquez, J Matas… - IEEE Transactions …, 2008 - ieeexplore.ieee.org
In this paper, the control strategy for a flexible microgrid is presented. The microgrid
presented here consists of several line-interactive uninterruptible power supply (UPS) …

Voltage support provided by a droop-controlled multifunctional inverter

JC Vasquez, RA Mastromauro… - IEEE Transactions …, 2009 - ieeexplore.ieee.org
This paper presents a single-phase multifunctional inverter for photovoltaic (PV) systems
application. The converter provides active power to local loads and injects reactive power …

Line-interactive UPS for microgrids

MA Abusara, JM Guerrero… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
Line-interactive uninterruptible power supply (UPS) systems are good candidates for
providing energy storage within a microgrid to help improve its reliability, economy, and …

Towards grid of microgrids: Seamless transition between grid-connected and islanded modes of operation

S D'silva, M Shadmand, S Bayhan… - IEEE Open Journal of …, 2020 - ieeexplore.ieee.org
With the ever-increasing number of blackouts in distribution systems arising from a variety of
natural and manmade disasters, the frequent and necessary isolation/reconnection of loads …

GaN-based high-power-density AC–DC–AC converter for single-phase transformerless online uninterruptible power supply

D Shahzad, S Pervaiz, NA Zaffar… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
This article introduces a new transformerless ac–dc–ac converter topology suitable for a
high-power-density high-frequency single-phase online uninterruptible power supply (UPS) …

Control of transient power during unintentional islanding of microgrids

WR Issa, MA Abusara… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
In inverter-based microgrids, the paralleled inverters need to work in grid-connected mode
and stand-alone mode and to transfer seamlessly between the two modes. In grid …

Power quality improvement in distribution system using distribution static compensator with super twisting sliding mode control

MF Ullah, A Hanif - International Transactions on Electrical …, 2021 - Wiley Online Library
Nowadays, power quality (PQ) issues are gaining considerable attention to both electrical
utilities and end‐users as they are causing significant financial losses to industrial …

Influence of voltage dips on industrial equipment: Analysis and assessment

A Honrubia-Escribano, E Gómez-Lázaro… - International Journal of …, 2012 - Elsevier
This paper presents a study of industry equipment electrical responses under voltage dips
with different magnitude, duration and point-on-wave initiation. The analysis provides …

Control architecture for parallel-connected inverters in uninterruptible power systems

C Zhang, JM Guerrero, JC Vasquez… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
In this paper, a control strategy for the parallel operation of three-phase inverters forming an
online uninterruptible power system (UPS) is presented. The UPS system consists of a …

Highly Efficient Single-Phase Three-Level Three-Leg Converter Using SiC mosfets for AC–AC Applications

O Kwon, JM Kwon, BH Kwon - IEEE Transactions on Industrial …, 2018 - ieeexplore.ieee.org
This paper proposes a highly efficient single-phase three-level three-leg converter using
silicon carbide (SiC) mosfets. The proposed converter shows high efficiency and comprises …