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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.2
- 수록면
- 70 - 88 (19page)
- DOI
- 10.7782/JKSR.2023.26.2.70
이용수
초록· 키워드
오류제보하기
This paper deals with the design and optimization of a 1.2 MVA medium-voltage (MV) power electronic traction transformer (PETT) for an AC 15 kV/16.7 Hz railway grid, in which a simple two-stage multi-cell PETT topology consisting of a bidirectional 170 kW, 2.5 kV AC rms to 6 kV DC power factor corrected (PFC) converter stage followed by a bidirectional isolated 46 kHz, 6 kV to 1.5 kV series resonant DC/DC converter for each cell is presented. This paper presents a methodology that maximizes the converter"s efficiency and minimizes the converter"s size and weight. Accordingly, the first stage employs 10 kV SiC MOSFETs based on the integrated Triangular Current Mode (iTCM). The second stage uses 10 kV SiC MOSFETs on the MV-side, 3.3 kV SiC MOSFETs on the LV-side, and a medium frequency (MF) MV transformer operating at 46 kHz. MF transformers offer a way to reduce weight and improve energy efficiency, particularly in electric multiple-unit applications. The MF MV transformer requires power electronic converters, which invert and rectify the voltages and currents at the desired operating frequency. The development of high voltage SiC MOSFETs, which can be used instead of Si IGBTs in PETT topologies, increases the operating frequency without reducing the converter"s efficiency. The designed MV PETT achieves 98.95% efficiency and 0.76 kVA/kg power density.
목차
Abstract
1. Introduction
2. PETT topology
3. Medium voltage AC/DC PFC converter stage
4. Isolated DC/DC converter stage
6. Weight and size estimation
7. Conclusion
References
참고문헌 (32)
참고문헌 신청
D. Ronanki, S. S. Williamson (2018) Evolution of Power Converter Topologies and Technical Considerations of Power Electronic Transformer-Based Rolling Stock Architectures, IEEE Transactions on Transportation Electrification, 4(1), pp. 211-219.
J. Feng, W.Q. Chu, Z. Zhang, Z.Q. Zhu (2017) Power Electronic Transformer-Based Railway Traction Systems: Challenges and Opportunities, IEEE Journal of Emerging and Selected Topics in Power Electronics, 5(3), pp. 1237-1253.
S. Zhao, Q. Li, F. C. Lee, B. Li (2018) High-Frequency Transformer Design for Modular Power Conversion From Medium-Voltage AC to 400 VDC, IEEE Transactions on Power Electronics, 33(9), pp. 7545-7557.
T. Guillod, J.W. Kolar (2020) Medium-frequency transformer scaling laws: Derivation, verification, and critical analysis, CPSS Transactions on Power Electronics and Applications, 5(1), pp. 18-33.
M. Leibl, G. Ortiz, J.W. Kolar (2017) Design and Experimental Analysis of a Medium-Frequency Transformer for Solid-State Transformer Applications, IEEE Journal of Emerging and Selected Topics in Power Electronics, 5(1), pp. 110-123.
J. Feng, W.Q. Chu, Z. Zhang, Z.Q. Zhu (2017) Power Electronic Transformer-Based Railway Traction Systems: Challenges and Opportunities, IEEE Journal of Emerging and Selected Topics in Power Electronics, 5(3), pp. 1237-1253.
S. Zhao, Q. Li, F. C. Lee, B. Li (2018) High-Frequency Transformer Design for Modular Power Conversion From Medium-Voltage AC to 400 VDC, IEEE Transactions on Power Electronics, 33(9), pp. 7545-7557.
T. Guillod, J.W. Kolar (2020) Medium-frequency transformer scaling laws: Derivation, verification, and critical analysis, CPSS Transactions on Power Electronics and Applications, 5(1), pp. 18-33.
M. Leibl, G. Ortiz, J.W. Kolar (2017) Design and Experimental Analysis of a Medium-Frequency Transformer for Solid-State Transformer Applications, IEEE Journal of Emerging and Selected Topics in Power Electronics, 5(1), pp. 110-123.
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