태양광 계통연계형 하이브리드 변압기의 해석 및 성능시험Analysis and Performance Test of Hybrid Transformer used in the Grid-Connected Photovoltaic Generation System
- Other Titles
- Analysis and Performance Test of Hybrid Transformer used in the Grid-Connected Photovoltaic Generation System
- Authors
- 김지호; 박훈양; 손진근
- Issue Date
- 2014
- Publisher
- 대한전기학회
- Keywords
- Harmonics; Hybrid transformer; Photovoltaic system; Smart grid; Zig-zag winding
- Citation
- 전기학회 논문지 P권, v.63, no.4, pp.333 - 338
- Journal Title
- 전기학회 논문지 P권
- Volume
- 63
- Number
- 4
- Start Page
- 333
- End Page
- 338
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/13176
- ISSN
- 1229-800x
- Abstract
- This paper concerns the development of the transformer that can reduce harmonics supplied to the system ifthe output of photovoltaic inverter in the photovoltaic system is grid-connected, and suggests that problems of harmonicsand power factor degradation in the grid-connected photovoltaic system can be improved. In this study, the burden ofincreasingthe investment in new facilities and securing their installation space due to harmonics has been substantiallyeased through the development of a hybrid transformer possessing unbalanced function and harmonics reduction functionusing zig-zag coils, and most of all, it is expected that the development of such high efficiency hybrid transformerpossessing functions of transformation and reducing harmonics can improve the power quality as well as preventdamages caused by harmonics, leading to suppress unnecessary loss of electric power and thereby contribute to energysavings.
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