Influence of magnetic fields on negative corona discharge currents

Jing, Mi; Xu, Dexuan; Sun, Yuan; Shengnan, Du; Yu, Chen

doi:10.1016/j.elstat.2008.04.010

Cited by 25 publications

(11 citation statements)

References 14 publications

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“…Consequently, it is inferred that the increase in discharge characteristics may have a maximum value in a fixed magnetic field, implying that there is an optimal combination between the electric field and the magnetic field. A similar result was also reported by Mi et al [31]…”

Section: Effect Of Magnetic Field On Discharge Characteristic and Opt...supporting

confidence: 91%

Promoting volatile organic compounds removal by a magnetically assisted nanosecond pulsed gear‐cylinder dielectric barrier discharge

Jiang

Sun

Peng

et al. 2021

Plasma Processes & Polymers

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In this study, a magnetic field perpendicular to the electric field is introduced to the gear-cylinder dielectric barrier discharge (DBD) to enhance the plasma density and improve the volatile organic compounds removal performance at atmospheric pressure. Higher discharge intensity, enlarged plasma streamers region, and better toluene removal performance are obtained after introducing a 0.2 T magnetic field

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Section: Effect Of Magnetic Field On Discharge Characteristic and Opt...supporting

confidence: 91%

Promoting volatile organic compounds removal by a magnetically assisted nanosecond pulsed gear‐cylinder dielectric barrier discharge

Jiang

Sun

Peng

et al. 2021

Plasma Processes & Polymers

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“…It was demonstrated that the effect of a magnetic field on a discharge current was most significant with negative corona discharges rather than with positive ones. A magnetically enhanced negative corona that results from field penetration on an ionization region was described in 4 . It was noticed that the relative increase of the discharge current was much larger when the permanent magnets were located near the discharge electrode than near the collecting electrode.…”

Section: Introductionmentioning

confidence: 99%

Magnetic field modulated dynamics of partial discharges in defects of high voltage insulating materials

Florkowski

2022

Sci Rep

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This paper presents original measurement methodology and detection approach to determine the influence of the magnetic field on the partial discharge (PD) dynamics. The application areas refer to insulation systems of both grid and industrial network devices and emerging segments such as high-speed rail, electric vehicles or more electric aircrafts. Conventionally PD measurements are executed only in electric field, however the interaction of magnetic and electric fields influences the dynamics of PDs. The measurement technique allowed to detect quantitatively the effect of magnetic fields on PDs in two representative arrangements: in gaseous void in dielectric material and in corona point-plane setup. Measurements in both configurations have revealed amplification of PDs intensity. The quantitative comparison of PDs evolution in the magnetic field is a novel aspect shown in this paper. Combination of phase resolved images and time-sequence intensity diagrams obtained at magnetic field switching allowed to visualize and determine quantitatively this impact. This effect is attributed to the extension of the charged particle trajectory and the amplification of the electron energy due to acceleration. Thus, the investigated impact of a magnetic field can be perceived as an additional element that influences the PD dynamics.

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“…If they are not perpendicular, the ion moves in the direction of the B with helical motion called the Larmor precession. Generally, this phenomenon has been used mainly to increase the amount of ions generated [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Application of a Magnetic Flux in the Corona Discharge Region to Improve Ion Thrust via Ion Acceleration

Kim

Jung

2019

J. Electr. Eng. Technol.

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This paper presents the experimental results of a study on ion thrust under magnetic flux density in atmospheric conditions. This study demonstrates that magnetic flux density perpendicular to the direction of ion flow generates a Lorentz-force. The effect of this electromagnetic force on the flow rate distribution was measured via experimentation. Consequently, it was confirmed that the magnetic flux density by the magnets increased the thrust force by 46% compared to the case without magnetic flux density. On the other hand, the discharge current was reduced by 11% due to the third electrode effect of the magnets.

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Influence of magnetic fields on negative corona discharge currents

Cited by 25 publications

References 14 publications

Promoting volatile organic compounds removal by a magnetically assisted nanosecond pulsed gear‐cylinder dielectric barrier discharge

Promoting volatile organic compounds removal by a magnetically assisted nanosecond pulsed gear‐cylinder dielectric barrier discharge

Magnetic field modulated dynamics of partial discharges in defects of high voltage insulating materials

Application of a Magnetic Flux in the Corona Discharge Region to Improve Ion Thrust via Ion Acceleration

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