Study on discharge characteristics of low-temperature sub-atmospheric pressure under steep change rate voltage

Bo ZHU; Ximu HAN; He SU; Xiangjie MA; Guoyan WU

doi:10.1088/2058-6272/ad85bc

Plasma Science and Technology > 2025 > 27(1): 015401. > DOI: 10.1088/2058-6272/ad85bc CSTR: 32219.14.2058-6272/ad85bc

Bo ZHU, Ximu HAN, He SU, Xiangjie MA, Guoyan WU. Study on discharge characteristics of low-temperature sub-atmospheric pressure under steep change rate voltage[J]. Plasma Science and Technology, 2025, 27(1): 015401. DOI: 10.1088/2058-6272/ad85bc

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Study on discharge characteristics of low-temperature sub-atmospheric pressure under steep change rate voltage

1.
MOE Key Laboratory of Engineering Dielectrics and its Application, Harbin University of Science and Technology, Harbin 150080, People’s Republic of China
2.
Huaneng Guanyun Clean Energy Power Generation Co. Ltd., Lianyungang 222228, People’s Republic of China

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Author Bio:
Ximu HAN: 2220310194@stu.hrbust.edu.cn
Corresponding author:
Ximu HAN, 2220310194@stu.hrbust.edu.cn
Received Date: June 18, 2024
Revised Date: October 08, 2024
Accepted Date: October 09, 2024
Available Online: October 10, 2024
Published Date: December 18, 2024

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Abstract

Abstract

Aiming at the gas discharge problem in electric aircraft, this work studies the gas discharge characteristics at low-temperature sub-atmospheric pressure. A gas discharge shooting platform was built, and the discharge process was photographed by intensified charge-coupled device (ICCD). A two-dimensional axisymmetric model of needle-plate electrode gas discharge was established, and three sets of Helmholtz equations were used to solve the photoionization. The results show that under the same voltage, the electric field intensity in the discharge process increases first, then decreases and finally increases again. The discharge speed increases with the increase of altitude, and the electron density in the streamer decreases with the increase of altitude. The development speed of the streamer in the middle stage is higher than that in the early stage, and the speed increases more obviously with the increase of altitude. The development speed of the streamer in the later stage is lower than that in the middle stage, but with the increase of altitude, the development speed of the streamer in the later stage is higher than that in the middle stage.
- electric aircraft,
- gas discharge,
- steep change rate voltage,
- electric field intensity,
- electron density

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References (23)

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