Development of 60 kV/30 kW Electron Beam Fuse Additive Manufacturing High Voltage Power Supply

YANG Bo; WANG Zhuang; XU Haiying; SANG Xinghua

doi:10.7512/j.issn.1001-2303.2023.06.02

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Development of 60 kV/30 kW Electron Beam Fuse Additive Manufacturing High Voltage Power Supply
Vol. 53, Issue 6, Pages: 8-14(2023)
DOI： 10.7512/j.issn.1001-2303.2023.06.02

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杨波，王壮，许海鹰，等.60 kV/30 kW电子束熔丝增材高压电源研制［J］.电焊机，2023，53（6）：8-14.

YANG Bo, WANG Zhuang, XU Haiying, et al.Development of 60 kV/30 kW Electron Beam Fuse Additive Manufacturing High Voltage Power Supply[J].Electric Welding Machine, 2023, 53(6): 8-14.
杨波，王壮，许海鹰，等.60 kV/30 kW电子束熔丝增材高压电源研制［J］.电焊机，2023，53（6）：8-14. DOI： 10.7512/j.issn.1001-2303.2023.06.02.

YANG Bo, WANG Zhuang, XU Haiying, et al.Development of 60 kV/30 kW Electron Beam Fuse Additive Manufacturing High Voltage Power Supply[J].Electric Welding Machine, 2023, 53(6): 8-14. DOI： 10.7512/j.issn.1001-2303.2023.06.02.

摘要

针对电子束熔丝增材制造工艺对设备长期稳定性与可靠性的需求，以电压双闭环的方式设计加速电源控制电路，实现加速电压在电网电压及负载特性发生变动时保持长期稳定的输出；以异步开关及均流控制的方式实现加速电源3路并联工作，降低30 kW输出功率状态下电路产生的EMI（Electromagnetic Interference），实现加速电源在长时间大功率状态下可靠工作，并在此基础上完成了对灯丝电源、偏压电源以及轰击电源的设计，实现了对电子束熔丝增材高压电源的研制。对所研制的高压电源进行特性验证，其可在60 kV输出电压及30 kW输出功率状态下实现20 h连续稳定工作，满足电子束熔丝增材制造工艺的要求。

Abstract

According to the requirements of the electron beam wire melting material increase manufacturing process on the long-term stability and reliability of the equipment, the control circuit of the acceleration power supply is designed in the form of voltage double closed-loop to realize the long-term stable output of the acceleration voltage when the grid voltage and load characteristics change; By means of asynchronous switching on/off and current sharing control, the three-way parallel operation of the accelerating power supply is realized, the EMI generated by the circuit under the output power of 30 kW is reduced, and the reliable operation of the accelerating power supply under the high-power state for a long time is realized. On this basis, the design of the filament power supply, the bias power supply and the bombardment power supply are completed, and the development of the high-voltage power supply for electron beam wire melting material increase is realized. The characteristics of the developed high-voltage power supply are verified. It can work stably for 20 hours under the condition of 60 kV output voltage and 30 kW output power, which meet the requirements of electron beam wire melting material increase manufacturing process.

关键词

电子束熔丝增材电压双闭环异步开关均流控制

Keywords

electron beamfuse additive manufacturingvoltage double closed-loopasynchronous switching on/offcurrent sharing control

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