Abstract：A high gain soft-switching Boost-Forward converter is proposed in this paper.The voltage gain of the proposed converter is improved by introducing a coupled inductor.The rate of change of the turn-off voltage and the turn-off losses of the switches are greatly reduced by their parallel capacitors.Meanwhile,the switches can operat under zero-voltage turn-on condition by optimizing the dead time between their driving signals.The reverse-recovery problem of the diode is solved by the reasonable design of the leakage inductance.Furthermore,the efficiency of the converter can be improved further by choosing low-voltage rated switches because the voltage stresses of the switches are much lower than the output voltage.Additionally,the utilization rate of the coupled inductor is improved because the coupled inductor transfers energy in both switches’ ON state and OFF state.Finally,a prototype is built and the experimental results verified the theoretical analysis.
张阳, 罗全明, 高伟, 孙鹏菊, 周雒维. 一种高增益软开关Boost-Forward变换器[J]. 电工技术学报, 2015, 30(7): 80-87.
Zhang Yang, Luo Quanming, Gao Wei, Sun Pengju, Zhou Luowei. A High Gain Soft-switching Boost-Forward Converter. Transactions of China Electrotechnical Society, 2015, 30(7): 80-87.
[1] 杨平,许建平,张士宇,等.峰值电流控制二次型Boost变换器[J].电工技术学报,2011,26(5):101-107. Yang Ping,Xu Jianping,Zhang Shiyu,et al.Peak current control mode for quadratic Boost converter[J].Transactions of China Electrotechnical Society,2011,26(5):101-107. [2] 侯世英,陈剑飞,孙韬,等.基于 Switch-Capacitor 网络实现分时供电的多输入升压变换器[J].电工技术学报,2014,29(4):27-37. Hou Shiying,Chen Jianfei,Sun Tao,et al.A multi-input step-up converter for individual supplying power based on the switch-capacitor network[J].Transactions of China Electrotechnical Society,2014,29(4):27-37. [3] 汪洋,罗全明,支树播,等.一种交错并联高升压 Boost 变换器[J].电力系统保护与控制,2013,41(5):133-139. Wang Yang,Luo Quanming,Zhi Shubo,et al.A new interleaved high step-up Boost converter[J].Power System Protection and Control,2013,41(5):133-139. [4] 王玉斌.单相并网逆变器前级交错并联DC/DC变换器的研究[J].电力系统保护与控制,2012,40(12):66-71. Wang Yubin.Study of interleaved DC/DC converter used in the first-stage of single-phase gird-connected inverter[J].Power System Protection and Control,2012,40(12):66-71. [5] 胡雪峰,龚春英.适用于光伏/燃料电池发电的组合式直流升压变换器[J].中国电机工程学报,2012,32(15):8-15. Hu Xuefeng,Gong Chunying.A combined-type Boost converter for solar cell and fuel cell power generating systems[J].Proceedings of the CSEE,2012,32(15):8-15. [6] 罗全明,闫欢,孙明坤,等.基于拓扑组合的高增益Boost变换器[J].电工技术学报,2012,27(6):96-102. Luo Quanming,Yan Huan,Sun Mingkun,et al.High step-up boost converter based on topology combination[J].Transactions of China Electrotechnical Society,2012,27(6):96-102. [7] 孟建辉,石新春,付超,等.新型高效率两级式单相光伏并网逆变系统的研究与应用[J].电力系统保护与控制,2013,41(20):87-92. Meng Jianhui,Shi Xinchun,Fu Chao,et al.Research and application of novel high efficiency two-stage single-phase photovoltaic grid-connected inverter system[J].Power System Protection and Control,2013,41(20):87-92. [8] Li Q,Wolfs P.A current fed two-inductor boost converter with an integrated magnetic structure and passive lossless snubbers for photovoltaic module integrated converter applications[J].IEEE Transactions on Power Electronics,2007,22(1):309-321. [9] Adib Ehsan,Farzanehfard Hosein.Zero-voltage transition current-fed full-bridge PWM converter[J].IEEE Transactions on Power Electronics,2009,24(4):1041-1049. [10]Yuan Bo,Yang Xu,Li Donghao,et al.A current-fed multiresonant converter with low circulating energy and zero-current switching for high step-up Power conversion[J].IEEE Transactions on Power Electronics,2011,26(6):1613-1619. [11]Grant Duncan Andrew,Darroman Yann,Suter James.Synthesis of tapped-inductor switched-mode converters[J].IEEE Transactions on Power Electronics,2007,22(5):1964-1969. [12]Zhao Q,Lee F C.High-efficiency,high step-up DC-DC converters[J].IEEE Transactions on Power Electronics,2003,18(1):65-73. [13]Wai R J,Duan R Y.High-efficiency DC/DC converter with high voltage gain[J].IEE Proceedings of Electric Power Applications,2005,152(4):793-802. [14]Wai R J,Duan R Y.High step-up converter with coupled-inductor[J].IEEE Transactions on Power Electronics,2005,20(5):1025-1035. [15]Baek J W,Ryoo M H,Kim T J,et al.High boost converter using voltage multiplier[C].31st Annual Conference of IEEE on Industrial Electronics Society,2005:567-572. [16]Yu Wensong,Hutchens C,Lai Jih-Sheng,et al.High efficiency converter with charge pump and coupled inductor for wide input photovoltaic AC module applications[C].IEEE Energy Conversion Congress and Exposition,San Jose,2009:3895-3900. [17]Seong H W,Kim H S,Park K B,et al.High step-up DC-DC converters using zero-voltage switching boost integration technique and light-load frequency modulation control[J].IEEE Transactions on Power Electronics,2012,27(3):1383-1400. [18]Zhao Yi,Li Wuhua,He Xiangning.Single-phase improved active clamp coupled-inductor-based converter with extended voltage doubler cell[J].IEEE Transactions on Power Electronics,2012,27(6):2869-2878. [19]Park K B,Moon G W,Youn M J.Nonisolated high step-up boost converter integrated with sepic converter[J].IEEE Transactions on Power Electronics,2010,25(9):2266-2275. [20]Tseng K C,Liang T J.Novel high-efficiency step-up converter[J].IEEE Proceedings Electric Power Applications,2004,151(2):182-190. [21]吴红飞,古俊银,张君君,等.高效率高增益Boost-Flyback直流变换器[J].中国电机工程学报,2011,31(24):40-45. Wu Hongfei,Gu Junyin,Zhang Junjun,et al.High efficiency high step-up Boost-Flyback DC/DC converter[J].Proceedings of the CSEE,2011,31(24):40-45.
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