LAPSE:2018.0848
Published Article
LAPSE:2018.0848
Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS Systems
Syed Sabir Hussain Bukhari, Shahid Atiq, Byung-il Kwon
November 16, 2018
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.
Keywords
current regulation, inrush currents, offline, uninterruptible power supply
Subject
Suggested Citation
Bukhari SSH, Atiq S, Kwon BI. Elimination of the Inrush Current Phenomenon Associated with Single-Phase Offline UPS Systems. (2018). LAPSE:2018.0848
Author Affiliations
Bukhari SSH: Deptartment of Electronic Systems Engineering, Hanyang University ERICA, Ansan 426-791, Korea [ORCID]
Atiq S: Deptartment of Electronic Systems Engineering, Hanyang University ERICA, Ansan 426-791, Korea
Kwon BI: Deptartment of Electronic Systems Engineering, Hanyang University ERICA, Ansan 426-791, Korea
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Journal Name
Energies
Volume
9
Issue
2
Article Number
E96
Year
2016
Publication Date
2016-02-04
Published Version
ISSN
1996-1073
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Original Submission
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PII: en9020096, Publication Type: Journal Article
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LAPSE:2018.0848
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doi:10.3390/en9020096
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Nov 16, 2018
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CC BY 4.0
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[v1] (Original Submission)
Nov 16, 2018
 
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Nov 16, 2018
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Original Submitter
Calvin Tsay
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