A three-phase off-line UPS system for transformer coupled loads
- Title
- A three-phase off-line UPS system for transformer coupled loads
- Author
- 권병일
- Keywords
- current controlled inverter; inrush current; off-line UPS; transformer-coupled loads
- Issue Date
- 2017-09
- Publisher
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- Citation
- IEICE ELECTRONICS EXPRESS, v. 14, No. 20, Article no. 20170815
- Abstract
- A number of critical load applications depend on a UPS system to uphold the normal operation. As soon as any disruption happens on the utility, an off-line UPS system starts supplying the power to the load to prevent blackout. Nonetheless, during this process, a substantial inrush current can be observed for the transformer-coupled loads. To avoid this inrush current, we propose an off-line UPS system based on a current regulated voltage source inverter. The inverter of the proposed UPS system uses a current control scheme executed in a stationary frame to regulate the load current and eliminates the likelihood of the inrush current. To endorse the performance of the proposed UPS system, we constructed a small prototype to obtain the experimental results.
- URI
- https://www.jstage.jst.go.jp/article/elex/14/20/14_14.20170815/_article/-char/ja/https://repository.hanyang.ac.kr/handle/20.500.11754/103576
- ISSN
- 1349-2543
- DOI
- 10.1587/elex.14.20170815
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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