Abstract：Through the analysis of the isolated bidirectional dual-active-bridge dc-dc converter (IBDC) with single-phase-shifting (SPS) control and dual-phase-shifting (DPS) control, the mathematical relationships among the inductor current stress, the output power, the input/output voltage conversion ratio and the phase-shift angle ratios were deduced in this paper. In order to effectively reduce the converter current stress, the phase-shift angle ratios were optimized to minimize the inductor current stress in different output power and voltage conversion ratios. Accordingly, an optimal DPS control strategy for IBDC is proposed, which can minimize the current stress of the converter while achieving the closed-loop control of output voltage. Hence, the IBDC current stress of DPS control is always smaller than that of SPS control. Moreover, the proposed strategy shows its superiority when the converter works in light load and the voltage conversion ratio is relatively large. Compared with SPS control, the proposed strategy is verified through a built prototype.
张勋, 王广柱, 王婷. 双向全桥DC-DC变换器基于电感电流应力的双重移相优化控制[J]. 电工技术学报, 2016, 31(22): 100-106.
Zhang Xun, Wang Guangzhu, Wang Ting. Optimized Control Based on Current-Stress of Bi-Directional Full-Bridge DC-DC Converters with Dual-Phase-Shifting Control. Transactions of China Electrotechnical Society, 2016, 31(22): 100-106.
[1] 童亦斌, 吴峂, 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. Dong Yibin, Wu Tong, Jin Xinmin, et al. Study of bi-directional DC/DC converter[J]. Proceedings of the CSEE, 2007, 27(13): 81-86. [2] Garcia P, Fernandez L M, Garcia C A, et al. Energy management system of fuel-cell-battery hybrid tramway[J]. IEEE Transactions on Industrial Elec- tronics, 2010, 57(12): 4013-4023. [3] 王冕, 田野, 李铁民, 等. 应用于储能系统的双向DC-DC变换器研究[J]. 电工技术学报, 2013, 28(8): 66-71. Wang mian, Tian Ye, Li Tiemin, et al. Study of bidirectional DC-DC converters applied to energy storage system[J]. Transactions of China Electro- technical Society, 2013, 28(8): 66-71. [4] 刘月贤, 王天钰, 杨亚宇, 等. 电动汽车充放电系统建模与仿真[J]. 电力系统保护与控制, 2014, 42(13): 70-76. Liu Yuexian, Wang Tianyu, Yang Yayu, et al. Modeling and simulation of electric vehicles’ charge and discharge system[J]. Power System Protection and Control, 2014, 42(13): 70-76. [5] Krismer F, Kolar J W. Efficiency-optimized high- current dual active bridge converter for automotive applications[J]. IEEE Transactions on Industrial Electronics, 2012, 59(7): 2745-2760. [6] Biao Z, Qiang S, Wenhua L. Next-generation multi-functional modular intelligent UPS system for smart grid[J]. IEEE Transactions on Industrial Elec- tronics, 2013, 60(9): 3602-3618. [7] Biao Z, Qiang S, Wenhua L, et al. Overview of dual-active-bridge isolated bidirectional DC-DC con- verter for high-frequency-link power-conversion system[J]. IEEE Transactions on Power Electronics, 2014, 29(8): 4091-4106. [8] Hua B, Ziling N, Mi C C. Experimental comparison of traditional phase-shift, dual-phase-shift, and model-based control of isolated bidirectional DC/DC converters[J]. IEEE Transactions on Power Elec- tronics, 2010, 25(6): 1444-1449. [9] Alonso A R, Sebastian J, Lamar D G, et al. An overall study of a dual active bridge for bidirectional DC/DC conversion[C]//IEEE in Energy Conversion Congress and Exposition (ECCE), Atlanta, GA, 2010: 1129-1135. [10] Hua B, Chunting M, Chongwu W, et al. The dynamic model and hybrid phase-shift control of a dual- active-bridge converter[C]//34th Annual Conference of IEEE in Industrial Electronics, Orlando, FL, 2008: 2840-2845. [11] Biao Z, Qiang S, Wenhua L, et al. Current- stress-optimized switching strategy of isolated bidirectional DC-DC converter with dual-phase-shift control[J]. IEEE Transactions on Industrial Elec- tronics, 2013, 60(10): 4458-4467. [12] Myoungho K, Rosekeit M, Seung-Ki S, et al. A dual-phase-shift control strategy for dual-active- bridge DC-DC converter in wide voltage range[C]// IEEE 8th International Conference on in Power Electronics and ECCE Asia (ICPE & ECCE), Jeju, 2011: 364-371. [13] 程红, 高巧梅, 朱锦标, 等. 基于双重移相控制的双向全桥DC-DC变换器动态建模与最小回流功率控制[J]. 电工技术学报, 2014, 29(3): 245-253. Cheng Hong, Gao Qiaomei, Zhu Jinbiao, et al. Dynamic modeling and minimum backflow power controlling of the bi-directional full-bridge DC-DC converters based on dual-phase-shifting control[J]. Transactions of China Electrotechnical Society, 2014, 29(3): 245-253. [14] 武琳, 刘志刚, 洪祥. 隔离式双向全桥DC-DC变换器的功率控制特性比较与分析[J]. 电工技术学报, 2013, 28(10): 179-187. Wu Lin, Liu Zhigang, Hong Xiang. Comparison and analysis of power control characteristic for isolated bidirectional full-bridge DC-DC converter[J]. Transa- ctions of China Electrotechnical Society, 2013, 28(10): 179-187. [15] Bai H, Mi C. Correction to "eliminate reactive power and increase system efficiency of isolated bidi- rectional dual-active-bridge DC-DC converters using novel dual-phase-shift control"[J]. IEEE Transactions on Power Electronics, 2012, 27(9): 4177-4177. [16] 赵彪, 于庆广, 孙伟欣. 双重移相控制的双向全桥DC-DC变换器及其功率回流特性分析[J]. 中国电机工程学报, 2012, 32(12): 245-253. Zhao Biao, Yu Qingguang, Sun Weixin. Bi- directional full-bridge DC-DC converters with dual- phase-shifting control and its backflow power chara- cteristic analysis[J]. Proceedings of the CSEE, 2012, 32(12): 245-253. [17] 张勋, 王广柱, 商秀娟, 等. 双向全桥DC-DC变换器回流功率优化的双重移相控制[J]. 中国电机工程学报, 2016, 36(4): 1090-1097. Zhang Xun, Wang Guangzhu, Shang Xiujuan, et al. Optimized strategy based on backflow power of bi- directional dual-active-bridge DC-DC converters with dual-phase-shifting control[J]. Proceedings of the CSEE, 2016, 36(4): 1090-1097.
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