高电压技术2025，Vol.51Issue(12)：6094-6103,10.DOI:10.13336/j.1003-6520.hve.20241924
纳秒脉冲参数对针-水阴极放电等离子体的影响
Effect of Nanosecond Pulse Parameters on Needle Water Cathode Discharge Plasma
XUE Haorui 1GAO Wenhao 1YUAN Qi 1LI Yang 1CHENG Yuchen 1DING Weidong1
作者信息
- 1. State Key Laboratory of Electrical Insulation and Power Equipment(Xi'an Jiaotong University),Xi'an 710049,China
- 折叠
摘要
Abstract
Nanosecond pulsed plasma,known for its low energy consumption and large volume,holds great potential for wastewater treatment.We designed a miniature needle water cathode discharge structure based on printed circuit board technology to achieve efficient plasma generation,investigated the development process of plasma under nanosecond pulses,and analyzed the effects of pulse parameters on plasma volume and luminous intensity.In short gap needle water cathode configurations,the initial tens of nanoseconds of the pulse play a decisive role in luminous intensity and vol-ume,and secondary streamers can initially span the entire gas gap.Plasma volume and intensity increase with pulse width until saturation.Higher voltage amplitudes and shorter rise times result in greater plasma intensity and volume.When the repetition frequency exceeds 1 kHz,residual metastable molecules transfer energy to electrons via superelastic collisions,reducing the discharge threshold and significantly enhancing plasma volume and intensity.Additionally,we investigated the discharge characteristics of multi-needle configurations,achieving large-volume plasma generation through array electrodes.关键词
纳秒脉冲等离子体/针-水阴极/脉冲参数/重频放电/等离子体体积Key words
nanosecond pulsed plasma/needle water cathode/pulse parameters/repetition frequency discharge/plasma volume引用本文复制引用
XUE Haorui,GAO Wenhao,YUAN Qi,LI Yang,CHENG Yuchen,DING Weidong..纳秒脉冲参数对针-水阴极放电等离子体的影响[J].高电压技术,2025,51(12):6094-6103,10.
