北京航空航天大学学报 ›› 2014, Vol. 40 ›› Issue (11): 1531-1536.doi: 10.13700/j.bh.1001-5965.2013.0715

• 论文 • 上一篇    下一篇

150kV/30kW逆变式电子束焊接高压电源设计

张伟1, 杜慧聪1, 齐铂金1, 许海鹰2   

  1. 1. 北京航空航天大学 机械工程及自动化学院, 北京 100191;
    2. 中国航空工业集团公司 北京航空制造工程研究所, 北京 100024
  • 收稿日期:2013-12-05 出版日期:2014-11-20 发布日期:2014-12-02
  • 通讯作者: 齐铂金 E-mail:qbj@buaa.edu.cn
  • 作者简介:张伟(1977-),男,四川自贡人,讲师,zhangweibh@buaa.edu.cn
  • 基金资助:

    工业和信息化部科技重大专项资助项目(2010ZX04007-041);北京市科技计划资助项目(D131100002813002)

150kV/30kW inverter for electron beam welding power supply design

Zhang Wei1, Du Huicong1, Qi Bojin1, Xu Haiying2   

  1. 1. School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
    2. Beijing Aeronautical Manufacturing Technology Research Institute, Aviation Industry Corporation of China, Beijing 100024, China
  • Received:2013-12-05 Online:2014-11-20 Published:2014-12-02

摘要:

针对150kV/30kW电子束焊接高压电源高电压、大功率输出的要求,低压电路采用IGBT (Insulated Gate Bipolar Transistor)逆变隔离直流电源与逆变全桥串联的主电路拓扑,高压电路由3组升压变压器与10倍压整流电路的串联结构并联组成;设计了高压采样电路、束流采样电路,以及双闭环控制电路.基于上述技术,实现了150kV/30kW高电压大功率输出.实验结果表明高压加速电源的输出线性度和束流输出线性度较好,同时高压稳定度和束流稳定度均在0.5%左右,能够满足电子束焊接的要求.

关键词: 电子束焊接, 高压电源, 逆变, 高频变压器, 倍压整流

Abstract:

With the consideration of characteristics of high voltage and high power output of 150kV/30kW power supply of electron beam welding (EBW), low-voltage circuit was designed to be composed of insulated gate bipolar transistor (IGBT) isolated DC power supply and full bridge inverter in series, and high-voltage circuit was paralleled by three groups of high-voltage transformer with 10 times voltage doubling rectifier circuit in series. At the same time, high voltage sampling circuit, electron beam current sampling circuit, and dual closed-loop control circuit were proposed. Based on the above technologies, the 150kV/30kW electron beam welding power supply was successfully developed. Experimental results show that the linearity of output voltage and output beam current of high-voltage accelerating power supply is excellent, the stability of output voltage and output beam current of high-voltage accelerating power supply is about 0.5%, which could satisfy the EBW requirements.

Key words: electron beam welding (EBW), high-voltage power supply, inverter, high frequency transformer, voltage doubling rectifier

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