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| Optimization of Isolated Bi-Directional DC-DC Converter Based on Alternative Modulation Method |
| Gao Ning1, Chen Qiang1, Li Rui1, Cai Xu1, Zhang Baihua2, Li Yongqi2 |
1. Wind Power Research Center School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai 200240 China;
2. China Southern Power Grid Power Generation Company Guangzhou 510630 China |
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Abstract As a core component of solid-state transformer, the efficiency of high power isolated bi-directional DC-DC converter is very important. This paper describes the principles of dual active bridge (DAB) in detail, and expressions of dissipated power are obtained in order to predict the different components losses. Moreover, this paper presents a novel control method based on alternative modulation mode to achieve higher efficiency. Then a prototype converter with rated power 35kW is implemented to verify the power loss prediction and control method. The values of measured efficiency are 98.1% and 97.6% respectively with different leakage reluctances.
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Received: 21 February 2014
Published: 01 April 2016
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[1] Murray W C. Power conversion circuit having a high frequency link: US, US3. 517. 300[P]. 1968-04-16.
[2] 张明锐, 刘金辉, 金鑫. 应用于智能微网的SVPWM固态变压器研究[J]. 电工技术学报, 2012, 27(1): 90-97. Zhang Mingrui, Liu Jinhui, Jin Xin. Research on the SVPWM solid state transformer applied in smart micro-grid[J]. Transactions of China Electrotechnical Society, 2012, 27(1): 90-97.
[3] Bifaretti S, Zanchetta P, Watson A, et al. Advanced power electronic conversion and control system for universal and flexible power management[J]. IEEE Transactions on Smart Grid, 2011, 2(2): 231-243.
[4] 刘海波, 毛承雄, 陆继明, 等. 电子电力变压器储能系统及其最优控制[J]. 电工技术学报, 2010, 25(3): 54-60. Liu Haibo, Mao Chengxiong, Lu Jiming, et al. Energy storage system of electronic power transformer and its optimal control[J]. Transactions of China Electro- technical Society, 2010, 25(3): 54-60.
[5] Inoue S, Akagi H. A bi-directional isolated DC/DC converter as a core circuit of the next-generation medium-voltage power conversion system[C]//Power Electronics Specialists Conference, 2006: 1-7.
[6] Akagi H, Kitada R. Control and design of a modular multilevel cascade BTB system using bidirectional isolated DC/DC converters[J]. IEEE Transactions on Power Electronics, 2011, 26(9): 2457-2464.
[7] Shi Jianjiang, Gou Wei, Yuan Hao, et al. Research on voltage and power balance control for cascaded modular solid-state transformer[J]. IEEE Transactions on Power Electronics, 2011, 26(4): 1154-1166.
[8] 葛俊杰, 赵争鸣. 级联型电压自平衡固态变压器[J]. 清华大学学报(自然科学版), 2013, 53(4): 459-464. Ge Junjie, Zhao Zhengming. Cascaded self-balanced solid-state transformer[J]. Journal of Tsinghua Univer- sity (Sci&Tech), 2013, 53(4): 459-464.
[9] 张明锐, 黎娜, 杜志超, 等. 基于小信号模型的微网控制参数选择与稳定性分析[J]. 中国电机工程学报, 2012, 32(25): 9-19. Zhang Mingrui, Li Na, Du Zhichao, et al. Control parameter selection and stability analysis of micro- grid based on small-signal model[J]. Proceedings of the CSEE, 2012, 32(25): 9-19.
[10] 张明锐, 杜志超, 王少波. 微网中下垂控制策略及参数选择[J]. 电工技术学报, 2014, 29(2): 136-144. Zhang Mingrui, Du Zhichao, Wang Shaobo. Research on doop control strategy and parameters selection of microgrids[J]. Transactions of China Electrotechnical Society, 2014, 29(2): 136-144.
[11] 盛况, 郭清, 张军明, 等. 碳化硅电力电子器件在电力系统的应用展望[J]. 中国电机工程学报, 2012, 32(30): 1-7. Sheng Kuang, Guo Qing, Zhang Junming, et al. Development and prospect of SiC power devices in power grid[J]. Proceedings of the CSEE, 2012, 32(30): 1-7.
[12] Steiner M, Reinold H. Medium frequency topology in railway applications[C]//IEEE European Conference on Power Electronics and Applications, 2007: 1-10.
[13] De Doncker R W A A, Divan D M, Kheraluwala M H. A three-phase soft-switched high-power-density DC/DC converter for high-power applications[J]. IEEE Transactions on Industry Applications, 1991, 27(1): 63-73.
[14] 童亦斌, 吴咚, 金新民, 等. 双向DC/DC变换器的拓扑研究[J]. 中国电机工程学报, 2007, 27(13): 81-86. Tong Yibin, Wu Tong, Jin Xinmin, et al. Study of bi-directional DC/DC converter[J]. Proceedings of the CSEE, 2007, 27(13): 81-86.
[15] Ortiz G, Bortis D, Kolar J W, et al. Soft-switching techniques for medium-voltage isolated bidirectional DC/DC converters in solid state transformers[C]// IECON Annual Conference on IEEE Industrial Electronics Society, 2012: 5233-5240.
[16] 刘福鑫, 潘子周, 阮新波. 一种 Boost 型双向桥式直流变换器的软开关分析[J]. 中国电机工程学报, 2013, 33(3): 44-51. Liu Fuxin, Pan Zizhou, Ruan Xinbo. Soft-switching analysis of a Boost-integrated bidirectional active bridge DC/DC converter[J]. Proceedings of the CSEE, 2013, 33(3): 44-51.
[17] Zhao Biao, Song Qiang, Liu Wenhua. Power characterization of isolated bidirectional dual-active- bridge DC-DC converter with dual-phase-shift control[J]. IEEE Transactions on Power Electronics, 2012, 27(9): 4172-4176.
[18] Zhao Biao, Yu Qingguang, Sun Weixin. Extended- phase-shift control of isolated bidirectional DC-DC converter for power distribution in microgrid[J]. IEEE Transactions on Power Electronics, 2012, 27(11): 4667-4680.
[19] 许海平. 大功率双向DC/DC变换器拓扑结构及其分析理论研究[D]. 北京: 中国科学院电工研究所, 2005.
[20] Krismer F. Modeling and optimization of bidire- ctional dual active bridge DC-DC converter topolo- gies[D]. Zürich: Fechnische Universität Wien, 2010.
[21] Friedli T, Heldwein M L, Giezendanner F, et al. A high efficiency indirect matrix converter utilizing RB-IGBTs[C]//Power Electronics Specialists Confer- ence, 2006: 1-7.
[22] Brittain J E. A steinmetz contribution to the AC power revolution[J]. Proceedings of the IEEE, 1984, 72(2): 196-197.
[23] Hurley W G, Gath E, Breslin J G. Optimizing the AC resistance of multilayer transformer windings with arbitrary current waveforms[J]. IEEE Transactions on Power Electronics, 2000, 15(2): 369-376.
[24] 廖宇文, 张军明, 张燚, 等. LLC谐振变流器中平面变压器铜损优化设计[J]. 电工技术学报, 2012, 27(2): 109-113. Liao Yuwen, Zhang Junming, Zhang Yi, et al. Winding loss optimization for planar transformer in LLC resonant converter[J]. Transactions of China Electrotechnical Society, 2012, 27(2): 109-113. |
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2016, Vol. 31 
