Registration and Simulation of Partial Discharges in Free Bubbles at AC Voltage

被引：18

作者：

Korobeynikov, S. M. ^{[1
,2
]}

Ridel, A. V. ^{[1
,2
]}

Medvedev, D. A. ^{[1
]}

Karpov, D. I. ^{[1
]}

Ovsyannikov, A. G. ^{[2
]}

Meredova, M. B. ^{[1
]}

机构：

[1] Lavrentyev Inst Hydrodynam SB RAS, 15 Lavrentyevav, Novosibirsk 630090, Russia

[2] Novosibirsk State Tech Univ, 20 Karl Marx Ave, Novosibirsk 630073, Russia

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2019年 / 26卷 / 04期

基金：

俄罗斯科学基金会;

关键词：

bubbles; partial discharges; oil insulation; hydrodynamics; lattice Boltzmann method; electric field effects; simulation;

D O I：

10.1109/TDEI.2019.007808

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：

Partial discharges in free bubbles in transformer oil are investigated both experimentally and theoretically. Optical, electric and optoelectronic registration are performed to obtain a picture of partial discharge. The time duration of electrical and optoelectronic signals is practically the same, 50 ns. Much longer time is needed for bubble deformation and its breaking, approximately several milliseconds. Electric properties obtained in experiments are confirmed by the simulation of the electrical field, "true" and "apparent" charges of partial discharge. Hydrodynamic behavior in experiments corresponds well to the simulation with the lattice Boltzmann method.

引用

页码：1035 / 1042

页数：8

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