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新型电子束焊机高压电源的设计与实现

范霁康 齐铂金 刘方军 张伟 齐秦 王海涛

范霁康, 齐铂金, 刘方军, 等 . 新型电子束焊机高压电源的设计与实现[J]. 北京航空航天大学学报, 2017, 43(2): 293-300. doi: 10.13700/j.bh.1001-5965.2016.0072
引用本文: 范霁康, 齐铂金, 刘方军, 等 . 新型电子束焊机高压电源的设计与实现[J]. 北京航空航天大学学报, 2017, 43(2): 293-300. doi: 10.13700/j.bh.1001-5965.2016.0072
FAN Jikang, QI Bojin, LIU Fangjun, et al. Design and implementation of a novel high-voltage power supply in electron beam welding machine[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(2): 293-300. doi: 10.13700/j.bh.1001-5965.2016.0072(in Chinese)
Citation: FAN Jikang, QI Bojin, LIU Fangjun, et al. Design and implementation of a novel high-voltage power supply in electron beam welding machine[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(2): 293-300. doi: 10.13700/j.bh.1001-5965.2016.0072(in Chinese)

新型电子束焊机高压电源的设计与实现

doi: 10.13700/j.bh.1001-5965.2016.0072
基金项目: 

工业与信息化部科技重大专项 2010ZX04007-041

详细信息
    作者简介:

    范霁康,男,博士研究生。主要研究方向:电子束焊接工艺与设备

    齐铂金,男,博士,教授。主要研究方向:焊接工艺与设备,先进电源技术及应用

    通讯作者:

    齐铂金,E-mail:qbj@buaa.edu.cn

  • 中图分类号: TG439.3

Design and implementation of a novel high-voltage power supply in electron beam welding machine

Funds: 

Special Major Science and Technology of Ministry of Industry and Information Technology 2010ZX04007-041

More Information
  • 摘要:

    传统的电子束焊机高压电源电路结构复杂、体积庞大,为此研发了一种新型60 kV/100 mA逆变式电子束焊机高压电源,电路结构简单、电压输出稳定。电源调压电路采用脉宽调制(PWM)技术控制的全桥变换器,使三相整流后的约540 V电压转化为0~500 V幅值可调的稳压直流电,然后经全桥逆变电路逆变为频率为20 kHz方波交流电;升压电路采用变压器串联与倍压整流的方式,将前级20 kHz方波交流电转变为60 kV的直流高压;控制电路采用基于比例积分微分(PID)调节的电压双闭环控制策略,能够使电源实现稳定的高压输出。搭建了高压测试平台对所研制的高压电源进行了测试,结果表明电源高压输出稳定、控制精度高,高压输出纹波与稳定度均能稳定在1%范围内,能够满足电子束焊机的要求。

     

  • 图 1  电子束焊机高压电源整体结构设计方案

    P+—三相整流输出正极;P-—三相整流输出负极;P1+—DC-DC全桥变换器输出正极;P1-—DC-DC全桥变换器输出负极;AC1—全桥逆变输出交流电压第一相;AC2—全桥逆变输出交流电压第二相;UHG—高压外环给定电压;UHF—高压外环反馈电压;ULG—高压内环给定电压;ULF—高压内环反馈电压;UIF—束流反馈电压。

    Figure 1.  Integrated structural design scheme of high-voltage power supply of electron beam welding machine

    图 2  DC-DC全桥变换电路拓扑

    VDC—电容C1两端电压;UOL—电容C3两端电压。

    Figure 2.  Circuit topology of DC-DC full-bridge converter

    图 3  IGBT全桥逆变电路工作原理示意图

    Figure 3.  Fundamental diagram of IGBT full-bridge inverter

    图 4  DC-DC全桥变换器实物

    Figure 4.  Real products of DC-DC full-bridge converter

    图 5  变压器主要升压方式

    Figure 5.  Common methods of boosting transformer

    图 6  后级高压电路拓扑

    Figure 6.  Topology of post high-voltage circuit

    图 7  2种倍压整流电路拓扑

    Figure 7.  Two kinds of voltage-doubling rectifier circuit topology

    图 8  油箱内后级高压电路实物

    Figure 8.  Real product of post high-voltage circuit in tank

    图 9  高压电源电压双闭环控制策略

    Figure 9.  Double-loop voltage control strategy of high-voltage power supply

    图 10  高压电源测试平台

    Figure 10.  Testing equipment of high-voltage power supply

    图 11  负载为400 kΩ时电源输出特性

    Figure 11.  Output characteristics of high-voltage power supply with load 400 kΩ

    表  1  高压电源负载测试数据

    Table  1.   Testing data of high-voltage power supply with load

    电压设置/kV 电压反馈/V 电压测量/kV 电流测量/mA
    0 0 0 0
    5 -0.51 -5.02 12.61
    10 -1.01 -10.21 25.42
    15 -1.50 -15.12 37.74
    20 -1.99 -19.89 49.60
    25 -2.51 -25.13 62.49
    30 -3.00 -30.02 75.01
    35 -3.47 -34.59 86.52
    40 -4.01 -40.15 100.39
    45 -4.55 -45.22 113.20
    50 -5.02 -50.35 126.01
    55 -5.53 -55.31 138.32
    60 -6.01 -60.31 150.68
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出版历程
  • 收稿日期:  2016-01-20
  • 录用日期:  2016-03-11
  • 刊出日期:  2017-02-20

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