JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2017, Vol. 47 ›› Issue (4): 37-42.doi: 10.6040/j.issn.1672-3961.0.2017.101

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A soft starting method for the isolated DC/DC converter in DC distribution systems

PAN Yiwei, YUAN Shuai, CHEN Alian, ZHANG Chenghui*   

  1. School of Control Science and Engineering, Shandong University, Jinan 250061, Shandong, China
  • Received:2017-01-03 Online:2017-08-20 Published:2017-01-03

Abstract: To solve over current problem of the isolated DC/DC converter that commonly applied in DC distribution systems, a novel simple soft starting method was proposed. During the starting time, the dutycycle of the input side square wave voltage gradually changed from 0 to 0.5, while the DC voltage ramped from 0 to the final set value at the same time by phase shift control. By applying these two methods, current overshooting and capacitor voltage oscillation could be effectively suppressed. The system had a strong anti-disturbance capacity and do not require complex mode switching procedure as conventional soft starting method. Simulation results were provided to validate the effectiveness of the proposed soft starting method.

Key words: DC/DC converter, DC distribution system, soft start, phase shift control

CLC Number: 

  • TM46
[1] 江道灼,郑欢.直流配电网研究现状与展望[J].电力系统自动化,2012,36(8):98-104. JIANG Daozhuo, ZHENG Huan. Research status and developing prospect of DC distribution network[J]. Automation of Electric Power Systems, 2012, 36(8): 98-104.
[2] 宋强,赵彪,刘文华,等.智能直流配电网研究综述[J].中国电机工程学报,2013,33(25):9-20. SONG Qiang, ZHAO Biao, LIU Wenhua, et al. An overview of research on smart DC distribution power network[J]. Proceedings of the CSEE, 2013, 33(25): 9-20.
[3] CARRIZOSA M J, BENCHAIB A, ALOU P, et al. DC transformer for DC/DC connection in HVDC network[C] //Proceedings of the 2013 15th European Conference on Power Electronics and Applications(EPE). Lille, France: IEEE Press, 2013: 1-10.
[4] HE J, LI Y W, MUNIR M S. A flexible harmonic control approach through voltage-controlled DG-grid interfacing converters[J]. IEEE Transactions on Industrial Electronics, 2012, 59(1): 444-455.
[5] HE J, LI Y W, XU D, et al. Deadbeat weighted average current control with corrective feed-forward compensation for microgrid converters with nonstandard LCL filter[J]. IEEE Transactions on Power Electronics, 2017, 32(4): 2661-2674.
[6] 李建国,赵彪,宋强,等.适用于中压直流配网的多电平直流链固态变压器[J].中国电机工程学报,2016,36(14):3717-3725. LI Jianguo, ZHAO Biao, SONG Qiang, et al. DC solid state transformer based on multilevel DC link for medium-voltage DC distribution application[J]. Proceedings of the CSEE, 2016, 36(14): 3717-3725.
[7] 李永庆,孟伟.电动汽车预充电过程研究[J].汽车电器, 2013(5):8-10. LI Yongqing, MENG Wei. On the precharging process for EV[J]. Design Research, 2013(5): 8-10.
[8] 姜雪松.隔离升压全桥 DC-DC 变换器拓扑理论和控制技术研究[D].北京:中国科学院电工研究所,2006. JIANG Xuesong. Research on the topology theory and control technology of isolated boost full bridge DC-DC converter[D]. Beijing: Institute of Electrical Engineering of the Chinese Academy of Sciences, 2006.
[9] 曲平,李子欣,宋鹏先,等.隔离式双向全桥DC-DC变换器预充电研究[J].电工技术学报,2014,29(1):320-325. QU Ping, LI Zixin, SONG Pengxian, et al. Pre-charge strategy study for isolated dual active bridge DC-DC converter[J]. Transactions of China Electrotechnical Society, 2014, 29(1):320-325.
[10] GIULIANI F, DELMONTE N, COVA P, et al. Soft-starting procedure for dual active bridge converter[C] //2015 IEEE 16th Workshop on Control and Modeling for Power Electronics(COMPEL). Vancouver, BC, Canada: IEEE Press, 2015: 1-6.
[11] DE DONCKER R W A A, DIVAN D M, KHERAL-UWALA M H. A three-phase soft-switched high-power-density DC/DC converter for high-power applications[J]. IEEE Transactions on Industry Applications, 1991, 27(1): 63-73.
[12] NAKATA S, MAKINO H, HOSOKAWA J. Energy efficient stepwise charging of a capacitor using a DC-DC converter with consecutive changes of its duty[J]. IEEE Transactions on Circuits and Systems, 2014, 61(7): 2194-2203.
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