[논문]Design Methodology of a Three-Phase Dual Active Bridge Converter for Low Voltage Direct Current Applications

Lee, Won-Bin; Choi, Hyun-Jun; Cho, Young-Pyo; Ryu, Myung-Hyo; Jung, Jee-Hoon

doi:10.6113/jpe.2018.18.2.482

Design Methodology of a Three-Phase Dual Active Bridge Converter for Low Voltage Direct Current Applications 원문보기

Journal of power electronics, v.18 no.2, 2018년, pp.482 - 491

Lee, Won-Bin (School of Electrical Engineering, Ulsan National Institute of Science and Technology) , Choi, Hyun-Jun (School of Electrical Engineering, Ulsan National Institute of Science and Technology) , Cho, Young-Pyo (Smart-Grid Group Power Distribution Lab, KEPCO Research Institute) , Ryu, Myung-Hyo (Power Conversion and Control Research Center, HVDC Research Division, KERI) , Jung, Jee-Hoon (School of Electrical Engineering, Ulsan National Institute of Science and Technology)

Abstract ▼ AI-Helper

The practical design methodology of a three-phase dual active bridge (3ph-DAB) converter applied to low voltage direct current (LVDC) applications is proposed by using a mathematical model based on the steady-state operation. An analysis of the small-signal model (SSM) is important for the design of a proper controller to improve the stability and dynamics of the converter. The proposed lead-lag controller for the 3ph-DAB converter is designed with a simplified SSM analysis including an equivalent series resistor (ESR) for the output capacitor. The proposed controller can compensate the effects of the ESR zero of the output capacitor in the control-to-output voltage transfer function that can cause high-frequency noises. In addition, the performance of the power converter can be improved by using a controller designed by a SSM analysis without additional cost. The accuracy of the simplified SSM including the ESR zero of the output capacitor is verified by simulation software (PSIM). The design methodology of the 3ph-DAB converter and the performance of the proposed controller are verified by experimental results obtained with a 5-kW prototype 3ph-DAB converter.

주제어

표/그림 (18)

그림 Fig. 1. Conceptual diagram of a LVDC system.
그림 Fig. 2. Schematic of three-phase DAB converter.
그림 Fig. 3. Theoretical waveforms of a three-phase DAB converter inthe forward power flow.
그림 Fig. 4. Comparison of the RMS current and reactive powerbetween the Y-Y windings and Y-？ windings.
그림 Fig. 5. Loss comparisons between the Y-Y and Y-Δ connections.
그림 Fig. 6. Control-to-output voltage transfer function of a three-phase DAB converter from 0 Hz to 100 kHz.
그림 Fig. 7. Magnitude and phase Bode plots of a transfer functionaccording to output capacitance increments.
그림 Fig. 8. Closed-loop gain with a PI controller.
그림 Fig. 9. Closed-loop gain with a 2P1Z controller.
그림 Fig. 10. Comparison of the output impedances using a PI and a2P1Z controller in the s-domain.
표 TABLE I DESIGN SPECIFICATIONS
그림 Fig. 11. Comparison of the transient performance using a PI anda 2P1Z controller in the time-domain.
그림 Fig. 12. 5 kW prototype of the three-phase DAB converter.
표 TABLE II PERFORMANCE COMPARISON
그림 Fig. 13. Experimental waveforms during steady-state operation: (a) 500 W; (b) 1.5 kW; (c) 3.5 kW; (d) 5 kW.
그림 Fig. 14. Comparison of the controller performance: (a) PIcontroller (7A？14A); (b) 2P1Z controller (7A？14A).
그림 Fig. 15. Bi-directional experimental waveform (3.5 kW ？ -3.5 kW).
그림 Fig. 16. Efficiency graphs of the proposed converter using a PIand a 2P1Z controller.

참고문헌 (17)

H.-J. Choi and J.-H. Jung, "Practical design of dual active bridge converter as isolated bi-directional power interface for solid state transformer applications," J. Electr. Eng. Tech., Vol.11, No.5, pp.1266-1273, Sep. 2016.
D.-K. Jeong, M.-H. Ryu, H.-G. Kim, and H.-J. Kim, "Optimized design of bi-directional dual active bridge converter for low-voltage battery charger," J. Power Electron., Vol. 14, No. 3, pp.468-477, May 2014.

원문보기 상세보기
Y. Yao, S. Xu, W. Sun, and S. Lu, "A novel compensator for eliminating DC magnetizing current bias in hybrid modulated dual active bridge converters," J. Power Electron., Vol. 16, No. 5, pp. 1650-1660, Sep. 2016.

원문보기 상세보기
S. P. Engel, N. Soltau, H. Stagge, and R. W. De Doncker, "Improved instantaneous current control for high-power three-phase dual-active bridge DC-DC converters," IEEE Trans. Power Electron., Vol. 29, No. 8, pp. 4067-4077, Aug. 2014.

상세보기
H. J. Choi and J. H. Jung, "Enhanced power line communication strategy for DC microgrids using switching frequency modulation of power converters," IEEE Trans. Power Electron., Vol. 32, No. 6, pp. 4140-4144, Jun. 2017.

상세보기
R. W. A. A. De Doncker, D. M. Divan and M. H. Kheraluwala, "A three-phase soft-switched high-powerdensity DC/DC converter for high-power applications," IEEE Trans. Ind. Appl., Vol. 27, No. 1, pp. 63-73, Jan./Feb. 1991.

상세보기
J. Hu, N. Soltau and R. W. De Doncker, "Asymmetrical duty-cycle control of three-phase dual-active bridge converter for soft-switching range extension," 2016 IEEE Energy Conversion Congress and Exposition (ECCE), pp. 1-8, 2016.
Y. Lee, G. Vakil, A. J. Watson and P. W. Wheeler, "An analytical modeling and estimating losses of power semiconductors in a three-phase dual active bridge converter for MVDC grids," 2017 IEEE Power and Energy Conference at Illinois (PECI), pp. 1-8, 2017.
S. P. Engel, N. Soltau, H. Stagge and R. W. De Doncker, "Dynamic and balanced control of three-phase high-power dual-active bridge DC-DC converters in DC-grid applications," IEEE Trans. Power Electron., Vol. 28, No. 4, pp. 1880-1889, Apr. 2013.

상세보기
N. Baars, J. Everts, K. Wijnands, and E. Lomonova, "Impact of different transformer-winding configurations on the performance of a three-phase dual active bridge DC-DC converter," 2015 IEEE Energy Conversion Congress and Exposition (ECCE), pp. 637-644, 2015.
W. A. Roshen, "A practical, accurate and very general core loss model for nonsinusoidal waveforms," IEEE Trans. Power Electron., Vol. 22, No. 1, pp. 30-40, Jan. 2007.

상세보기
G. G. Oggier, G. O. GarcIa and A. R. Oliva, "Switching control strategy to minimize dual active bridge converter losses," IEEE Trans. Power Electron., Vol. 24, No. 7, pp. 1826-1838, Jul. 2009.

상세보기
C. Basso, Designing Control Loops for Linear and Switching Power Supplies: A Tutorial Guide, 2015.
H. D. Venable, "The k-factor: A new mathematical tool for stability analysis and synthesis," in Proc. Powercon, Vol. 10, pp. H1-1, 1983.
B.-C. Choi, Pulse Width Modulated DC-to-DC Power Conversion: Circuits, Dynamics, and Control Designs, Wiley-IEEE Press, pp. 311-454, 2013.
A. Rodriguez, A. Vazquez, D. G. Lamar, M. M. Hernando and J. Sebastian, "different purpose design strategies and techniques to improve the performance of a dual active bridge with phase-shift control," IEEE Trans. Power Electron., Vol. 30, No. 2, pp. 790-804, Feb. 2015.

상세보기
J. Hiltunen, V. Vaisanen, R. Juntunen, and P. Silventoinen, "Variable frequency phase shift modulation of a dual active bridge converter," IEEE Trans. Power Electron., Vol. 30, No. 12, pp. 7138-7148, Dec. 2015.

상세보기

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관 관리번호, 논문명, 대등논문명, 저자 , 저널/프로시딩명, 발행기관, 발행년, 발행언어, 권, 호, 시작페이지, 끝페이지, ISBN, ISSN, 주제분야, 키워드, 초록(한글), 초록(영문), 저자(소속기관)
저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증