自适应闭环控制的高频脉冲电子束偏压电路设计  

Design of High Frequency Pulsed Electron Beam Bias Circuit With Adaptive Closed-Loop Control

作　　者：杨波 许海鹰 桑兴华 王壮 YANG Bo;XU Haiying;SANG Xinghua;WANG Zhuang(High Energy Beam Generator Laboratory,AVIC Manufacturing Technology Institute,Beijing 100024,China)

机构地区：[1]中国航空制造技术研究院高能束流发生器实验室,北京100024

出　　处：《航空制造技术》2025年第1期90-94,共5页Aeronautical Manufacturing Technology

基　　金：军工双百工艺(JCKY2018205B027)。

摘　　要：针对脉冲电子束焊接工艺的需求,以快速可控调节的直流偏压主电路结构设计及束流自适应闭环调节的控制电路设计为核心技术,实现束流自适应闭环调节的高频脉冲电子束偏压电路设计;并通过Cadence仿真软件对电路参数进行仿真验证,优化电路参数。在此基础上,完成高频脉冲电子束偏压电路研制,并将高频脉冲电子束偏压电路接入电子束焊接系统中进行特性验证,结果表明,脉冲电子束流可以实时动态跟随设定信号,工作频率可达1 kHz,束流的上升与下降速度较快,波形良好,失真度较小,可有效满足脉冲电子束工艺的需求。According to the requirements of pulsed electron beam welding technology,the design of high-frequency pulsed electron beam bias circuit with adaptive closed-loop adjustment of beam current is realized by taking the structure design of fast controllable DC bias main circuit and the control circuit design of adaptive closed-loop adjustment of beam current as the core technology;The circuit parameters are simulated and verified by Cadence simulation software,and the circuit parameters are optimized.On this basis,a high-frequency pulsed electron beam bias circuit is developed,and its characteristics are verified by connecting it to the electron beam welding system.The results show that the pulsed electron beam can follow the set signal dynamically in real time,the working frequency can reach 1 kHz,the rising and falling speed of the beam is fast,the waveform is good and the distortion is small,which can effectively meet the requirements of the pulsed electron beam process.

关 键 词：脉冲电子束 自适应闭环 快速可控调节 偏压 Cadence电路仿真 

分 类 号：TG456.3[金属学及工艺—焊接] V261.34[航空宇航科学与技术—航空宇航制造工程]