A pneumatic adjustment method for output switch gap based on trajectory planning

Jia Zhen; Wu Gang; Wang Haiyang; Yin Jiahui; Guo Fang; Cheng Le; Mei Kaisheng

doi:10.11884/HPLPB202638.250184

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Jia Zhen, Wu Gang, Wang Haiyang, et al. A pneumatic adjustment method for output switch gap based on trajectory planning[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.250184

Citation:

Jia Zhen, Wu Gang, Wang Haiyang, et al. A pneumatic adjustment method for output switch gap based on trajectory planning[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.250184

Jia Zhen, Wu Gang, Wang Haiyang, et al. A pneumatic adjustment method for output switch gap based on trajectory planning[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.250184

Citation:

Jia Zhen, Wu Gang, Wang Haiyang, et al. A pneumatic adjustment method for output switch gap based on trajectory planning[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.250184

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A pneumatic adjustment method for output switch gap based on trajectory planning

doi: 10.11884/HPLPB202638.250184

Northwest Institute of Nuclear Technology, Xi’an 710024, China

Received Date: 2025-06-25
Accepted Date: 2025-08-28
Rev Recd Date: 2025-09-22

Available Online: 2025-11-25

Abstract

Abstract

Background
The output switch is an essential part of the electromagnetic pulse simulator, and the switch gap directly affects the waveform characteristics of the electric field generated by the simulator. The single-polarity electromagnetic pulse simulator can adjust the switch gap by an external motor, but the bipolar electromagnetic pulse simulator cannot use the method due to the influence of mechanical structure and high voltage insulation.
Purpose
This study aims to investigate a gas-driven method to achieve precise regulation of the switch gap in a bipolar electromagnetic pulse simulator.
Methods
Firstly, the basic structure of the gas remote adjustment system is proposed, which takes the cylinder as the actuator and connects with the outer cavity body through air pipe. Secondly, based on the structure, the mathematical model of the switch gap adjustment system is established. Thirdly, in view of the disadvantage of slow gas driving response, a switch gap control method combining trajectory planning and PIDA control method is proposed; Finally, the effectiveness of this method is verified by using Matlab simulation software.
Results
Simulation results of the whole regulation process can be seen that when the switch gap is moved from 0 mm to the desired 30 mm, the process tracking error of the switch gap is less than 3.5 mm, and the final error is less than 0.5 mm.
Conclusions
This paper proposes a gas-driven switch gap adjustment method,which can achieve fast and accurate adjustment of the switch electrode gap, and a single adjustment can be within 200s, with an adjustment error of less than 0.5 mm. This method is of great significance for the engineering construction of electromagnetic pulse simulators.
- bipolar,
- electromagnetic pulse simulator,
- output switch,
- gap adjustment,
- gas-driven

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References(16)

References

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