Current pulse characteristic analysis of typical void and point partial discharge based on PIC‐MCC method

Huang, Hong-Yi; Hu, Yuantai; Xue, Feng

doi:10.1049/iet-smt.2018.5148

Cited by 5 publications

(1 citation statement)

References 15 publications

(14 reference statements)

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“…Most particle simulations of streamers are solved with the PIC/MCC (particle-in-cell/Monte Carlo Collision) model. The PIC/MCC model describes complex particle changes accurately through the collision reaction equations between particles, but it requires much calculation cost [3], [4]. The hydrodynamic model is computationally much more efficient because of the approximation of the continuous electron densities.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Temperature Sensitivity Parameters in Hydrodynamic Model of Streamer

Tian¹,

Shan²,

Liu³

et al. 2023

IEEE Access

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Temperature is an important environmental factor affecting streamer discharge. However, the mechanism and regularity of the influence are still unclear. This paper analyzes the mechanism of how the parameters in the hydrodynamic model are affected by temperature and the finite element method is used to solve three particle continuity equations along with Poisson's equation simultaneously. The results show that the increase in temperature inhibits the ionization and the attachment process, and the reduction rate of the ionization coefficient is 40 times the attachment coefficient numerically, which means that the streamer is easier to initiate at low temperatures. The increase in temperature accelerates the diffusion and drift of electrons. This effect increases the average velocity of the streamer, and the average velocity increases by about 4.89m/(s•K) with temperature, which means that the fast-moving charged particles at high temperature may affect the discharge signals. The essence of the influence of temperature on the physical quntities in the streamer discharge is its influence on ionization, attachment, diffusion, and drift effects. The results in this paper can comprehensively consider the effects and obtain the effect mechanism of temperature on the micro-process of the streamer, contributing to the research on the insulation design of power equipment and the influence of temperature on the discharge signals.

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Section: Introductionmentioning

confidence: 99%

Analysis of Temperature Sensitivity Parameters in Hydrodynamic Model of Streamer

Tian¹,

Shan²,

Liu³

et al. 2023

IEEE Access

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Particle simulation of streamer discharges on surface of DC transmission line in presence of raindrops

Zhang

Wang

Liu

et al. 2021

Journal of Applied Physics

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The streamer discharge occurring on the surface of a conductor in rain is one of the critical problems associated with the design of high voltage direct current (HVDC) transmission lines. In this paper, the streamer discharges on the conductor surface in the presence of raindrops at atmospheric pressure are studied by use of two-dimensional particle-in-cell simulations with Monte Carlo collisions included. The influences of the drop angles, volumes, and spatial distributions of raindrops on the development of streamer discharges have been demonstrated. The formation of streamer discharges and the involved electric fields, plasma densities, propagation velocities, and discharge currents are presented. It is found that the discharge intensity decreases significantly with an increasing of the drop angle. The dividing point at the 95° angle is suggested. With an increase of the raindrop volume and the distance of raindrops, strong discharges with the advanced discharge time, faster propagation velocity, larger electric field, and higher plasma density are initiated. Moreover, the electron energy probability functions of different discharges have been studied, which are nonequilibrium and reveal kinetic behavior of the discharges. The simulation results, which are qualitatively in agreement with the previous experimental observations, bring new insight into the discharge dynamics and provide useful references for the protection of HVDC transmission lines in rainy days.

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Characteristic Analysis of Point Discharge Current Pulse Using Numerical Simulation Based on Fluid Dynamics Model

Zhang

Xue

2020

2020 8th International Conference on Condition Monitoring and Diagnosis (CMD)

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Current pulse characteristic analysis of typical void and point partial discharge based on PIC‐MCC method

Cited by 5 publications

References 15 publications

Analysis of Temperature Sensitivity Parameters in Hydrodynamic Model of Streamer

Analysis of Temperature Sensitivity Parameters in Hydrodynamic Model of Streamer

Particle simulation of streamer discharges on surface of DC transmission line in presence of raindrops

Characteristic Analysis of Point Discharge Current Pulse Using Numerical Simulation Based on Fluid Dynamics Model

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