Research on optimization of MW level neutral beam injection arc power supply system

Zhang Jintao; Yang Puqiong; Wei Huiling; Yu Peixuan; Luo Huaiyu; Geng Shaofei; Zhou Bowen; Wan Yinxiang; Cao Jianyong

doi:10.11884/HPLPB202133.210026

Volume 33 Issue 8

Aug. 2021

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Article Navigation > High Power Laser and Particle Beams > 2021 > 33(8): 085002

Zhang Jintao, Yang Puqiong, Wei Huiling, et al. Research on optimization of MW level neutral beam injection arc power supply system[J]. High Power Laser and Particle Beams, 2021, 33: 085002. doi: 10.11884/HPLPB202133.210026

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Zhang Jintao, Yang Puqiong, Wei Huiling, et al. Research on optimization of MW level neutral beam injection arc power supply system[J]. High Power Laser and Particle Beams, 2021, 33: 085002. doi: 10.11884/HPLPB202133.210026

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Research on optimization of MW level neutral beam injection arc power supply system

doi: 10.11884/HPLPB202133.210026

1.
College of Electrical Engineering, University of South China, Hengyang 421001, China
2.
Southwestern Institute of Physics, Chengdu 610041, China

Received Date: 2021-01-21
Rev Recd Date: 2021-06-15

Available Online: 2021-07-21

Publish Date: 2021-08-15

Abstract

Abstract

The performance of the neutral beam injection arc power supply seriously affects the stability of the arc discharge and the efficiency of the neutral beam heating. HL-2A device arc power supply adopts linear power supply technology based on thyristor phase-controlled voltage regulation and 12-pulse uncontrolled rectification; HL-2M test beam line device arc power supply adopts switching power supply technology based on super capacitor and IGBT full-controlled rectification. To optimize the performance of the power system, improve the arc discharge stability, the influence of sampling frequency on the stability of arc discharge is studied. By modeling the HL-2A and HL-2M power supply control systems, MATLAB is used to simulate the step response performance of the HL-2M arc current power supply control system and the HL-2A control system performance under different sampling frequencies, and analyze the impact of the sampling frequency on the system performance. Then, the ion source test platform is used to conduct arc discharge experiments at different sampling frequencies to verify the simulation results, and the experimental results are consistent with the simulation results. It is verified by experiments that the sampling frequency has great influence on the stability of arc discharge, while in the frequency adjustable range, increasing the sampling frequency can improve the performance of the control system and optimize the stability of arc discharge; the reason for the unstable arc discharge of HL-2A is the conduction characteristics of the thyristor and the filter circuit.
- neutral beam injection,
- HL-2A,
- HL-2M,
- arc power supply,
- control system,
- sampling frequency

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References(22)

References

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