An on-line UPS system that eliminates the inrush current phenomenon while feeding multiple load transformers
- Authors
- Bukhari, Syed sabir hussain; Lipo, Thomas A.; Kwon, Byung il
- Issue Date
- Jun-2015
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- current regulator; Inrush current elimination; mutilple load transformers; on-line UPS systems; voltage regulator
- Citation
- 9th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics, ICPE 2015-ECCE Asia, v.2015, pp.385 - 390
- Indexed
- SCOPUS
- Journal Title
- 9th International Conference on Power Electronics - ECCE Asia: Green World with Power Electronics, ICPE 2015-ECCE Asia
- Volume
- 2015
- Start Page
- 385
- End Page
- 390
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/20615
- DOI
- 10.1109/ICPE.2015.7167815
- ISSN
- 2150-6078
- Abstract
- Numerous industrial facilities involve the installation of load transformers with their respective loads. As loads are turned on and off, these transformers are energized and de-energized, respectively, which can cause serious disturbances to sensitive loads. An inrush current, which typically occurs when a transformer is energized, can easily be observed using on-line uninterruptible power supply (UPS) systems feeding such loads. This paper proposes an on-line UPS system that eliminates the inrush current phenomenon caused by the energizing of load transformers. The UPS inverter specifically utilizes a fast acting current control scheme that enables it to regulate current for the load during all energizing conditions of load transformer connected to the UPS system. © 2015 Korean Institute of Power Electronics.
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