Abstract：A control scheme of achieving zero-voltage-switching (ZVS) for the non-isolated three-level Buck-Boost bidirectional converter is proposed is the paper. All switches can achieve ZVS in the whole load range without additional circuitry, thereby improving the power conversion efficiency. Furthermore, this scheme utilizes an out-phase control, which can double the inductor current frequency, decrease the inductor volume greatly and improve power density. Firstly, the operation principle of ZVS is analyzed. Secondly, the influence of the reverse current IR on soft-switching during the dead-time interval is explained. Then, the expressions of dead-time and switching frequency are derived. Finally, an experiment prototype is built and tested in both Buck mode and Boost mode to verify the correctness and effectiveness of the proposed scheme.
孙孝峰, 袁野, 王宝诚, 李昕, 潘尧. 零电压开关三电平Buck-Boost双向变换器[J]. 电工技术学报, 2018, 33(2): 293-300.
Sun Xiaofeng, Yuan Ye, Wang Baocheng, Li Xin, Pan Yao. Zero-Voltage Switching Three-Level Buck-Boost Bidirectional Converter. Transactions of China Electrotechnical Society, 2018, 33(2): 293-300.
[1] 胡腾, 许烈, 李永东, 等. 混合电动汽车多电平车载变换器的研究[J]. 电工技术学报, 2015, 30(14): 261-268. Hu Teng, Xu Lie, Li Yongdong, et al. Research of multilevel converters on HEV[J]. Transactions of China Electrotechnical Society, 2015, 30(14): 261- 268. [2] 汪泉弟, 安宗裕, 郑亚利, 等. 电动汽车开关电源电磁兼容优化设计方法[J]. 电工技术学报, 2014, 29(9): 225-231. Wang Quandi, An Zongyu, Zheng Yali, et al. Electromagnetic compatibility optimization design for switching power switching power supply used in electric vehicle[J]. Transactions of China Electro- technical Society, 2014, 29(9): 225-231. [3] 肖旭, 张方华, 郑愫. 移相+PWM控制器Boost半桥双向DC-DC变换器软开关过程分析[J]. 电工技术学报, 2015, 30(16): 17-25. Xiao Xu, Zhang Fanghua, Zheng Su. The Analysis of soft-switching of the fhase shift+PWM control dual Boost half-bridge bidirectional DC-DC converter[J]. Transactions of China Electrotechnical Society, 2015, 30(16): 17-25. [4] 杨玉岗, 邹雨霏, 代少杰, 等. DCM模式下交错并联磁集成双向DC/DC变换器的稳态性能分析[J]. 电工技术学报, 2015, 30(11): 60-70. Yang Yugang, Zou Yufei, Dai Shaojie, et al. Steady state performance analysis of the interleaving and magnetically integrated bidirectional DC/DC converter under DCM mode[J]. Transactions of China Elec- trotechnical Society, 2015, 30(11): 60-70. [5] Garcia Oscar, Zumel Pabio, Castro Angel de, et al. Automotive DC-DC bidirectional converter made with many interleaved Buck stages[J]. IEEE Transaction on Power Electronics, 2006, 21(3): 578-586. [6] Zhang Junhong, Lai Jih-Sheng, Kim Rae-Young, et al. High-power density design of a soft-switching high- power bidirectional DC-DC converter[J]. IEEE Transaction on Power Electronics, 2007, 22(4): 1145- 1153. [7] Camara Mamadou Baïlo, Gualous Hamid, Gustin Frederic, et al. DC/DC converter design for super- capacitor and battery power management in hybrid vehicle applications-polynomial control strategy[J]. IEEE Transaction on Industrial Electronics, 2010, 57(2): 587-597. [8] Yu Wensong, Qian Hao, Lai Jih-Sheng. Design of high-efficiency bidirectional DC-DC converter and high-precision efficiency measurement[J]. IEEE Transaction on Power Electronics, 2010, 25(3): 650- 658. [9] Zhang Michael T, Jiang Yimin, Lee Fred C, et al. Single-phase three-level Boost power factor correction converter[C]//IEEE Applied Power Electronics Con- ference and Exposition, Dallas, TX, 1995: 434-439. [10] 薛雅丽, 李斌, 阮新波. Buck三电平变换器[J]. 电工技术学报, 2003, 18(3): 29-35. Xue Yali, Li Bin, Ruan Xinbo. Buck three-level converter[J]. Transactions of China Electrotechnical Society, 2003, 18(3): 29-35. [11] 阮新波, 危健, 薛雅丽. 非隔离三电平变换器中分压电容均压的一种方法[J]. 中国电机工程学报, 2003, 23(10): 27-31. Ruan Xinbo, Wei Jian, Xue Yali. A method to balance the voltage of the divided capacitors in non- isolated three-level converters[J]. Proceedings of the CSEE, 2003, 23(10): 27-31. [12] Ruan Xinbo, Li Bin, Chen Qianhong, et al. Funda- mental considerations of three-level DC-DC converter: topologies, analyses, and control[J]. IEEE Transaction on Circuits and Systems, 2008, 55(11): 3733-3743. [13] Grbovic Petar J, Delarue Philipe, Moigne Philippe Le, et al. A bidirectional three-level DC-DC converter for the ultracapacitor applications[J]. IEEE Transaction on Industrial Electronics, 2010, 57(10): 3415-3430. [14] Lin C C, Yang L S, Wu G W. Study of a non-isolated bidirectional DC-DC converter[J]. IET Power Elec- tronics, 2013, 6(1): 30-37. [15] 金科, 阮新波. 零电压开关多谐振三电平直流变换器[J]. 中国电机工程学报, 2004, 24(7): 156-161. Jin Ke, Ruan Xinbo. Zero-voltage-switching multi- resonant three-level converters[J]. Proceedings of the CSEE, 2004, 24(7): 156-161. [16] 何海洋, 姚刚, 邓焰, 等. 一种三电平交错并联Boost变换器[J]. 电工技术学报, 2006, 21(6): 23-29. He Haiyang, Yao Gang, Deng Yan, et al. An interleaved three-level Boost converter[J]. Transa- ctions of China Electrotechnical Society, 2006, 21(6): 23-29. [17] Ilic Milan, Hesterman Bryce, Maksimovic Dragan. Interleaved zero current transition three-level Buck converter[C]//IEEE Applied Power Electronics Conference and Exposition, Dallas, TX, 2006: 72-78. [18] Dusmez Serkan, Khaligh Alireza, Hasanzadeh Amin. A zero-voltage-transition bidirectional DC/DC con- verter[J]. IEEE Transaction on Industrial Electronics, 2015, 62(5): 3152-3162.
2018, Vol. 33 
