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山东大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (4): 37-42.doi: 10.6040/j.issn.1672-3961.0.2017.101

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一种应用于直流配电网的隔离直流变换器软启动方法

潘羿威,袁帅,陈阿莲,张承慧*   

  1. 山东大学控制科学与工程学院, 山东 济南 250061
  • 收稿日期:2017-01-03 出版日期:2017-08-20 发布日期:2017-01-03
  • 通讯作者: 张承慧(1963— ),男,山东德州人,教授,博士,主要研究方向为电动汽车,新能源和优化控制. E-mail:zchui@sdu.edu.cn E-mail:cinsdllpyv@163.com
  • 作者简介:潘羿威(1993— ),男,山东德州人,硕士研究生,主要研究方向为微电网能量管理. E-mail:cinsdllpyv@163.com
  • 基金资助:
    国家自然科学基金资助项目(51377101);教育部新世纪人才支持计划资助项目(NCET-13-0339)

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

摘要: 针对广泛应用于直流配电网的双有源桥的启动电流冲击问题,提出一种简单的直流变换器软启动方法。在设定的启动时间内,输入侧H桥输出方波电压占空比从0逐渐增加到0.5,同时通过移相控制调节输出侧电压在相同的时间内从0逐渐增加到给定值。通过这两种方法的协同控制,可以有效抑制启动时电流冲击和直流电压振荡,系统具备很好的抗扰能力且不需要采用传统软启动的复杂模式切换。分析和仿真验证了软启动方法的有效性。

关键词: 移相控制, 软启动, 直流变换器, 直流配网

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

中图分类号: 

  • TM46
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