Influence of gap spacing on the characteristics of Trichel pulse generated in point-to-plane discharge gaps

Li, Zhen; Zhang, Bo; He, Jinliang; Xu, Yongsheng

doi:10.1063/1.4863506

Cited by 25 publications

(13 citation statements)

References 18 publications

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“… 7 , 8 developed a similar theory for negative corona in oxygen that emphasizes the importance of the relatively wide plasma region which brings the electric field close to zero over much of the cathode region, and the crucial role played by attachment in converting electrons to negative ions, freezing the electric field formation in place. The above theory has been generally accepted by many researchers 9 – 12 . In recent years, there are still some numerical simulations performed on the evolution of negative corona discharge and the behaviors of Trichel pulses 13 – 17 .…”

Section: Introductionmentioning

confidence: 87%

Trichel pulse in various gases and the key factor for its formation

Zhang

Xia

Jiang

et al. 2017

Sci Rep

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We confirm in this paper that Trichel pulse of negative corona is a common phenomenon that can occur in various gases rather than only in electronegative gases as considered in the last 70 years since G W Trichel firstly reported. Trichel pulse is exactly a mode transition between low-current Townsend and high-current normal glow regime, two pulseless stages of negative corona with different operating conditions and ion flux threshold. The rising of the pulse corresponds to the breakdown and formation of temporal glow discharge, the decay corresponds to the destroy of temporal sheath, and the interval (or repetition frequency of pulses) is determined by the re-building of the positive ion cloud to enhance significantly the local electric field for glow discharge to form again. The positive ions play a predominant role for the pulse formation and the mode transition, while the negative ions in electronegative gas are not necessary even if they affect greatly the pulsing process.

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Section: Introductionmentioning

confidence: 87%

Trichel pulse in various gases and the key factor for its formation

Zhang

Xia

Jiang

et al. 2017

Sci Rep

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“…where k c is a constant, r is needle tip radius, S is the pointto-plane spacing. On the other hand, He et al [55,56] proposed another type of f -V a based on their experimental observation,…”

Section: Frequency Characteristicsmentioning

confidence: 99%

Review on ionization and quenching mechanisms of Trichel pulse*

et al. 2021

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Trichel pulse is a kind of pulsed mode in negative DC corona discharge, which has attracted significant attention because of its considerable applications in industry. Over eighty years, plenty of effort including simulations and experiments has been spent to reveal the ionization and quenching mechanisms of Trichel pulse. By revisiting and summarizing the basic characteristics and well-accepted ionization and quenching mechanisms, this review provides a basic understanding and the current status of Trichel pulse.

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“…Regardless of forward discharge or backward discharge, the discharge current shows a double exponential pulse characteristic. Early studies have shown that the discharge pulse current directly reflects the behaviour of space charge and the physical process of discharge during discharge development [16, 17]. In order to analyse the influence of voltage frequency on the surface discharge of PEEK material, the current pulse parameters [18–20], i.e.…”

Section: Experiments Results and Analysismentioning

confidence: 99%

Influence of frequency on the surface discharge characteristics of PEEK under positive repetitive square voltage

Yang

Meng

et al. 2020

High Voltage

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In this study, the surface discharge current pulses of polyetheretherketone (PEEK) material under positive repetitive square voltage in a nitrogen atmosphere are measured. The influences of different voltage amplitudes and frequencies on the detail parameters of forward discharge and backward discharge current pulses are statistically analysed. The results show that as the square voltage amplitude increases, the current pulse amplitude, fall time and pulse width of both forward and backward discharge current increase, and the rise time does not change significantly. As the voltage frequency increases, current pulse amplitude, fall time and pulse width of both forward and backward discharge current decrease, and the rise time does not change significantly. Due to the independence of the discharge at different repetitive cycles, the specific discharge process in one cycle is analysed in detail to explain the influence mechanism of the voltage amplitude and frequency on the discharge current. By mean of the Richardson–Schottky and the Cavallini relaxation model, the relationship between discharge voltage ratio and surface charge, and the decay process of surface discharge are analysed. Furthermore, the influences of amplitude and frequency of the positive repetitive square voltage on the PEEK surface current pulses are explained qualitatively.

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Influence of gap spacing on the characteristics of Trichel pulse generated in point-to-plane discharge gaps

Cited by 25 publications

References 18 publications

Trichel pulse in various gases and the key factor for its formation

Trichel pulse in various gases and the key factor for its formation

Review on ionization and quenching mechanisms of Trichel pulse*

Influence of frequency on the surface discharge characteristics of PEEK under positive repetitive square voltage

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