TY - GEN
T1 - Simulation of electrical tree initiation in XLPE cable insulation under DC field
AU - Zhang, Xiang
AU - Xu, Yang
AU - Duan, Chao
AU - Hu, Libin
AU - Liao, Yanqun
AU - Sun, Tingxi
AU - Zhu, Wuzhou
PY - 2013
Y1 - 2013
N2 - Real-time three dimensional simulations of the electrical tree initiation process in needle-plane geometry under DC field with practical parameters were conducted. The evolution of physical parameters in this dynamic process was presented. Three governing equations: the continuity equation, the transport equation and the Poisson equation, were used to describe charge injection and motion, and an iteration simulation method was proposed to characterize the reciprocal effect of electron injection and local field modification. During the simulation, the transferred energy was regarded as thermal energy, which diffuses and causes local temperature to increase. When a local temperature exceeds the pre-set threshold, partial thermal breakdown occurs, indicating electrical tree initiation. The temperature evolutions of the point right below the needle tip with time under different voltages reflect an apparent deterministic feature of the electrical tree initiation process.
AB - Real-time three dimensional simulations of the electrical tree initiation process in needle-plane geometry under DC field with practical parameters were conducted. The evolution of physical parameters in this dynamic process was presented. Three governing equations: the continuity equation, the transport equation and the Poisson equation, were used to describe charge injection and motion, and an iteration simulation method was proposed to characterize the reciprocal effect of electron injection and local field modification. During the simulation, the transferred energy was regarded as thermal energy, which diffuses and causes local temperature to increase. When a local temperature exceeds the pre-set threshold, partial thermal breakdown occurs, indicating electrical tree initiation. The temperature evolutions of the point right below the needle tip with time under different voltages reflect an apparent deterministic feature of the electrical tree initiation process.
UR - https://www.scopus.com/pages/publications/84901741402
U2 - 10.1109/CEIDP.2013.6748253
DO - 10.1109/CEIDP.2013.6748253
M3 - 会议稿件
AN - SCOPUS:84901741402
SN - 9781479925964
T3 - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
SP - 490
EP - 493
BT - 2013 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2013
T2 - 2013 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2013
Y2 - 20 October 2013 through 23 October 2013
ER -