Journal of Guangxi Normal University(Natural Science Edition) ›› 2021, Vol. 39 ›› Issue (3): 11-19.doi: 10.16088/j.issn.1001-6600.2020053101

Previous Articles     Next Articles

Research on Switch Quasi-Z Source Bidirectional DC/DC Converter Applied to Super Capacitor Energy Storage

DAI Yunfei, ZHU Longji*   

  1. School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan Anhui 232001, China
  • Received:2020-05-31 Revised:2020-07-02 Published:2021-05-13

Abstract: In order to solve the problems of low buck-boost conversion of super capacitor and large output voltage fluctuation in super capacitor energy storage system and increase the charging speed when boosting, a novel switching quasi-Z source bidirectional DC/DC converter is proposed. The converter adds two switch capacitors, which increases the voltage gain by 1/4 during the boost process, reduces the voltage drop coefficient by 1/5 during the step-down process, and reduces the voltage stress of the switch by 1/5. This paper introduces the working process of the super capcitor in the mode of step-up discharge and charging, and designs the voltage/current double closed-loop step-up control strategy. As a result, the output voltage fluctuation is less than 0.98% and the inductor current amplitude is reduced by 0.82 A. At the same time, the constant current to constant voltage step-down control strategy is designed, which increases the charging rate by 9.26%. MATLAB simulation is used to prove the characteristics and theoretical analysis of the proposed converter.

Key words: super capacitor, energy storage system, bidirectional DC/DC converter, wide voltage gain range, control strategy

CLC Number: 

  • TM46
[1]BI K T,SUN L,AN Q T,et al. Active SOC balancing control strategy for modular multilevel super capacitor energy storage system[J]. IEEE Transactions on Power Electronics,2019,34(5):4981-4992.
[2]侯宗祥. 高电压增益型超级电容储能系统研究[D]. 北京:北京交通大学,2019.
[3]郭亮,贾彦,康丽,等. 一种蓄电池和超级电容器复合储能系统[J]. 储能科学与技术,2017,6(2):296-301.
[4]曾志辉,许波,刘华启,等. 基于超级电容器储能系统的双向DC/DC变换器拓扑设计与研究[J]. 河南理工大学学报(自然科学版),2018,37(1):103-109.
[5]王芳,罗胜华,吴海辉. 基于混合储能的新型双向DC/DC变换器控制研究[J]. 电气传动,2019,49(4):48-53.
[6]SAMOSIR A S,YATIM A H M. Implementation of dynamic evolution control of bidirectional DC-DC converter for interfacing ultracapacitor energy storage to fuel-cell system[J]. IEEE Transactions on Industrial Electronics,2010,57(10):3468-3473.
[7]章宝歌,张振,王东豪,等. 一种适用于复合储能的双向DC/DC变换器[J]. 储能科学与技术,2020,9(1):178-185.
[8]ZHANG Y,GAO Y P,LI J,et al. Interleaved switched-capacitor bidirectional DC-DC converter with wide voltage-gain range for energy storage systems[J]. IEEE Transactions on Power Electronics,2018,33(5):3852-3869.
[9]张卫,杨珏,张文明,等. 纯电动汽车蓄电池-超级电容复合能源系统研究[J]. 电测与仪表,2019,56(3):82-90.
[10]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.
[11]ARDI H,AJAMI A,KARDAN F,et al. Analysis and implementation of a nonisolated bidirectional DC-DC converter with high voltage gain[J]. Transactions on Power Electronics,2016, 63(8): 4878-4888.
[12]LEE Y S,KO Y P. Switched-capacitor bi-directional converter performance comparison with and without quasi-resonant zero-current switching[J]. IET Power Electronics,2010,3(2):269-278.
[13]宋朝锋,张红娟,靳宝全,等. 一种交错并联零电流软开关双向DC/DC变换器设计[J]. 电测与仪表,2018,55(4):118-123.
[14]李文华,张林林,孟喆,等. 交错式三电平低纹波双向DC/DC变换器[J]. 河南理工大学学报(自然科学版),2017,36(6):99-105.
[15]YANG L S,LIANG T J. Analysis and implementation of a novel bidirectional DC-DC converter[J]. IEEE Transactions on Industrial Electronics,2012,59(1):422-434.
[16]王喜利,王根,赵兴,等. DCM模式下双向DC/DC变换器的性能分析[J]. 测控技术,2016,35(8):146-150,153.
[17]周美兰,田小晨. 用于电动汽车的交错并联软开关双向DC/DC变换器[J]. 哈尔滨理工大学学报,2016,21(4):83-89.
[18]张民,于雷,刘贇,等. 交错并联准Z源直流变换器的研究[J]. 辽宁工程技术大学学报(自然科学版),2019,38(3):269-274.
[19]吴彦欣,张巧杰,赵晓萌. 一种新型准Z源DC/DC变换器[J]. 辽宁工程技术大学学报(自然科学版),2018,37(3):632-638.
[20]房绪鹏,赵扬,李昊舒,等. 一种新型准Z源DC-DC变换器[J]. 电子器件,2018,41(1):136-140.
[21]王利民,钱照明,彭方正. Z源升压变换器[J]. 电气传动,2006,36(1):28-29,32.
[22]陆治国,祝万平,刘捷丰,等. 一种新型交错并联双向DC/DC变换器[J]. 中国电机工程学报,2013,33(12):39-46.
[23]冯兴田,张磊,高春侠. 带超级电容储能的双向DC/DC变换器实验平台[J]. 电力系统及其自动化学报,2018,30(8):145-150.
[24]祁乐,张红娟,靳宝全,等. 基于SOC的储能系统控制策略研究[J]. 煤炭技术,2018,37(6):247-249.
[1] YANG Yueqiang, ZHU Longji. Control Strategy of Microgrid Super Capacitor Hybrid Energy Storage System [J]. Journal of Guangxi Normal University(Natural Science Edition), 2021, 39(2): 71-80.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] WEI Hongjin, ZHOU Xile, JIN Dongmei, YAN Yuehong. Additions to the Pteridophyte Flora of Hunan, China[J]. Journal of Guangxi Normal University(Natural Science Edition), 2018, 36(3): 101 -106 .
[2] ZHENG Wei,WEN Guoqiu,HE Wei,HU Rongyao,ZHAO Shuzhi. Low-rank Unsupervised Feature Selection Based on Self-representation[J]. Journal of Guangxi Normal University(Natural Science Edition), 2018, 36(1): 61 -69 .
[3] JIANG Xianghui, JIANG Tianzhi, WANG Xiang, YUAN Jing. Monosaccharide Constituents of the Polysaccharides from the Leaf of Cyclocarya paliurus[J]. Journal of Guangxi Normal University(Natural Science Edition), 2018, 36(2): 87 -93 .
[4] ZENG Jianqiang, HE Mingji, LI Qingyu, HUANG Hanxing,DING Xuexue, MAO Quanyuan, ZHONG Xinxian. Polyaniline Electrode Materials Modified by MesocarbonMicrobead for Supercapacitor[J]. Journal of Guangxi Normal University(Natural Science Edition), 2017, 35(4): 84 -90 .
[5] ZHANG Qingqing,WANG Yanyan,MENG Pinjia, ZHANG Wenfang. Determination of Quaternary Ammonium Herbicides in Pond Water by SPEwith Sweeping-MEKC Method[J]. Journal of Guangxi Normal University(Natural Science Edition), 2017, 35(2): 93 -100 .
[6] LIN Qun-wu, YAN Peng-cheng, HU Yun. Polarity Correlation Algorithm of Velocity MeasurementSystem Based on DSP[J]. Journal of Guangxi Normal University(Natural Science Edition), 2015, 33(2): 9 -14 .
[7] LUO Qiang, HU San-gen, ZANG Xiao-dong, GONG Hua-wei. Design of Monitoring and Control System on Greenhouse Environment Factor Based on ZigBee Technology[J]. Journal of Guangxi Normal University(Natural Science Edition), 2015, 33(3): 28 -33 .
[8] LIAO Yuan-xiu, ZHOU Sheng-ming, QIN Shao-hua. The Internet of Things with Knowledge Service Functionality[J]. Journal of Guangxi Normal University(Natural Science Edition), 2014, 32(2): 42 -47 .
[9] XIA Hai-ying, YAN Yuan-hui, HUANG Si-qi, XIAO Wen-jing. A Reliable Contour Extraction Method for Motion Object in Surveillance Systems[J]. Journal of Guangxi Normal University(Natural Science Edition), 2014, 32(4): 39 -44 .
[10] ZHAO Zhi-chang, HU Fu-chu, HU Gui-bing, WANG Hui-cong, YANG Zhuan-ying, SU Chun-lan, LI Jia-qiang. Cloning Glucose-flavonoid 3-o-glucosyltransferase (UFGT) from Litchi and Expression in Escherichia coli[J]. Journal of Guangxi Normal University(Natural Science Edition), 2011, 29(4): 104 -110 .