전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2020년도 전력전자학술대회
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- Pages.157-159
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- 2020
전기자동차용 3kW급 LDC를 위한 통합형 플라나변압기 설계
Integrated Planar Transformer Design of 3 kW LDC for Electric Vehicles
- Ramadhan, Ramadhan (Seoul National University of Science and Technology) ;
- Suk, Chaeyoung (Seoul National University of Science and Technology) ;
- Kim, Sangjin (Seoul National University of Science and Technology) ;
- Choi, Sewan (Seoul National University of Science and Technology) ;
- Yu, Byeongu (LG Electronics) ;
- Park, Sanghun (LG Electronics)
- 발행 : 2020.08.18
초록
This paper presents an optimal planar transformer design of a 3-kW Low voltage DC-DC Converter (LDC) with 3.68 kW/L power density for electric vehicle (xEV) application. The transformer is optimized based on the trade-off between footprint and loss using the proposed figure-of-merit (FOM) based optimization. In order to achieve ZVS under entire load range, an external leakage inductance is added and implemented using the proposed magnetic integration technique. A comparison between non-integrated and integrated magnetic core using finite element analysis (FEA) is presented. The result shows that the integrated core can reduce the core loss up to 35 % and core boxed volume up to 15 % compared to the non-integrated core. Experimental results are also provided to validate the proposed magnetic integration technique.
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