Application of Lattice Boltzmann Method to SF6 Circuit-breaker Arcing Process Simulation

被引：0

作者：

Sun, Qili ^{[1
]}

Cui, Jia ^{[1
]}

Gao, Fei ^{[1
]}

Gui, Meijing ^{[1
]}

Zhang, Junmin ^{[1
]}

机构：

[1] Beihang Univ, Beijing, Peoples R China

来源：

2022 6TH INTERNATIONAL CONFERENCE ON ELECTRIC POWER EQUIPMENT - SWITCHING TECHNOLOGY (ICEPE-ST) | 2022年

基金：

中国国家自然科学基金;

关键词：

SF6 circuit breaker; lattice Boltzmann method; D2Q9 lattice model; arcing simulation;

D O I：

10.1109/ICEPE-ST51904.2022.9756988

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Nowadays, SF6 circuit breaker is irreplaceable protection equipment in ultra-high voltage power systems. To improve the breaking performance, the physical-mathematical model of nozzle arc has been continuously explored. At present, the commonly used model is the magnetohydrodynamic model based on Navier Stokes equation, which is nonlinear and difficult to solve. A new nozzle arc model based on lattice Boltzmann method (LBM) is proposed in this paper. The heat source term and boundary conditions in this model are treated to make it suitable for arcing process. This model has been used to simulate the arcing process of a 252kV high-voltage SF6 circuit breaker. The temperature distribution are obtained in the arc extinguishing chamber. The variation in temperature with arc current is given along arc radius. Simulation results perfectly verify the feasibility of the arc model based on LBM.

引用

页码：326 / 330

页数：5

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