Next Article in Journal
Performance Evaluation of Palm Oil-Based Biodiesel Combustion in an Oil Burner
Previous Article in Journal
Simulation of Wind Speed in the Ventilation Tunnel for Surge Tanks in Transient Processes
Article Menu

Export Article

Open AccessArticle
Energies 2016, 9(2), 96; doi:10.3390/en9020096

Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS Systems

Deptartment of Electronic Systems Engineering, Hanyang University ERICA, Ansan 426-791, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Gabriele Grandi
Received: 4 December 2015 / Revised: 27 January 2016 / Accepted: 28 January 2016 / Published: 4 February 2016

Abstract

Critical load applications always rely on UPS systems to uphold continuous power during abnormal grid conditions. In case of any power disruption, an offline UPS system starts powering the load to avoid blackout. However, this process can root the momentous inrush current for the transformer installed before the load. The consequences of inrush current can be the reduction of output voltage and tripping of protective devices of the UPS system. Furthermore, it can also damage the sensitive load and decrease the transformer’s lifetime. To prevent the inrush current, and to avoid its disruptive effects, this research suggests an offline UPS system based on a current regulated inverter that eliminates the inrush current while powering the transformer coupled loads. A detailed comparative analysis of the conventional and proposed topologies is presented and the experiment was performed by using a small prototype to validate the performance, and operation of the proposed topology. View Full-Text
Keywords: uninterruptible power supply; offline; inrush currents; current regulation uninterruptible power supply; offline; inrush currents; current regulation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Bukhari, S.S.H.; Atiq, S.; Kwon, B.-I. Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS Systems. Energies 2016, 9, 96.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top