A Single-Switch Step-Up Converter Based on Switched-Capacitor Networks in Parallel
Hou Shiying1, Chen Jianfei1, Sun Tao1, Ma Buyun2, Li Ming2, Diao Jia2
1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400044 China; 2. Zhangjiakou Wind and Solar Power Energy Demonstration Station Co.Ltd State Grid Xin Yuan Company Zhangjiakou 075000 China
Abstract：In the renewable grid generation system, the traditional Boost converter has a constrained step-up ratio, large ripples and low efficiency. Therefore, a single-switch step-up converter based on switched-capacitor networks in parallel is proposed in the paper. Working principles and working performances of the converter in continuous operating mode are respectively given. An experimental model is built and its results indicates: ①Not increasing the voltage stress of switch devices, these converters’ boost capability enhances as the number of switched-capacitor networks in parallel increases; ②small input-current ripple and output-voltage ripple; ③Since only one switch is needed in the converter, its control circuit is simple; ④ the location of the input source is arbitrary.
侯世英, 陈剑飞, 孙韬, 马步云, 李明, 刁嘉. 基于开关电容网络并联的单开关升压变换器[J]. 电工技术学报, 2015, 30(10): 242-248.
Hou Shiying, Chen Jianfei, Sun Tao, Ma Buyun, Li Ming, Diao Jia. A Single-Switch Step-Up Converter Based on Switched-Capacitor Networks in Parallel. Transactions of China Electrotechnical Society, 2015, 30(10): 242-248.
[1] Choi S, Agelidis V G, Yang J, et al. Analysis, design and experimental results of a floating-output interleaved- input boost-derived DC-DC high-gain trans former-less converter[J]. IET Power Electronics, 2011, 4(1): 168- 180. [2] Li Wuhua, He Xiangning. Review of nonisolated high-step-up DC/DC converters in photovoltaic grid- connected[J]. Applications IEEE Transactions on Power Electronics, 2011, 58(4): 1239-1250. [3] 陆治国, 刘捷丰, 郑路遥, 等. 输入串联输出串联高增益Boost变换器[J]. 中国电机工程学报, 2010, 30(30): 27-31. Lu Zhiguo, Liu Jiefeng, Zheng Luyao, et al. Input- series output-series high gain Boost converter[J]. Proceedings of the CSEE, 2010, 30(30): 27-31. [4] 罗全明, 闫欢, 孙明坤, 等. 基于拓扑组合的高增益Boost变换器[J]. 中国电机工程学报, 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. [5] Luo F L, Ye H. Positive output cascade boost con- verters[J]. Proc. Inst. Elect. Eng-Elect. Power Appl., 151(5): 590-606. [6] Ma Guadalupe, Ortiz Lopez J, Leyva Ramos L H. Multiloop controller for n-stage cascade boost converter [C]. 16th IEEE International Conference on Control Applications, 2007: 587-592. [7] 彭方正, 房绪鹏, 顾斌, 等. Z源变换器[J]. 电工技术学报, 2004, 19(2): 47-51. Peng Fangzheng, Fang Xupeng, Gu Bin, et al. Z-source inverter[J]. Transactions of China Electrotechnical Society, 2004, 19(2): 47-51. [8] Dmitri Vinnikov, Indrek Roasto, Rsyzard Strzelecki, et al. Step-up DC/DC converter with cascaded quasi- Z-source network[J]. IEEE Transactions on Industrial Electronics, 2012, 59(10): 3727-3736. [9] Zhu M, Luo F L. Voltage-lift-type Cuk converters: topology and analysis[J]. IET Power Electron, 2009, 2(2): 178-191. [10] Zhu M, Luo F L. Series SEPIC implementing voltage- lift technique for DC-DC power conversion[J]. IET Power Electron, 2008, 1(1): 109-121. [11] Chen Shih Ming, Liang Tsorng Juu. A quadratic high step-up DC-DC converter with voltage multiplier[C]. 2011 IEEE International Electric Machines & Drives Conference, 2011: 1025-1029. [12] Chen Shih Ming, Liang Tsorng Juu, Yang Lung Sheng, et al. A cascaded high step-up DC-DC converter with single switch for microsource applications[J]. IEEE Transactions on Power Electronics, 2011, 26(4): 1146- 1153. [13] Lin Mao Sheng, Yang Lung Sheng, Liang Tsorng Juu. Study and implementation of a single switch cascading high step-up DC-DC converter[C]. 8th International Conference on Power Electronics - ECCE Asia, 2011. [14] Fernando Lessa Tofoli, Demercil de Souza Oliveira, Jr Ren´e Pastor Torrico Bascop ´e, et al. Novel nonisolated high-voltage gain DC-DC converters based on 3SSC and VMC[J]. IEEE Transactions on Power Electronics, 2012, 27(9): 3897-3907. [15] Prudente M, Pfitscher L L, Emmendoerfer G, et al. Voltage multiplier cells applied to non-isolated DC-DC converters[J]. IEEE Transactions on Power Electronics, 2008, 23(2): 871-887. [16] Boris Axelrod, Yefim Berkovich, Adrian Ioinovici. Switched-capacitor/switched-inductor structures for getting transformerless hybrid DC-DC PWM converters [J]. IEEE Transactions on Circuits and Systems—I: 2008, 55(2): 88-96. [17] Robert W Erickson, Dragan Maksimovic. Fundamentals of power electronics[M]. 2nd ed. Kluwer Academic Publishers, 2001.
2015, Vol. 30 
