The Impact of the 500kV Ion Flow Field of High Voltage DC Transmission Lines on Insulator Potential Distribution

doi:10.11985/2018.05.004

Abstract

Abstract:

The space charge around ultra high voltage dc transmission line makes the electric field distribution nearby complicated, and has an effect on the insulator flashover nearby. The ion flow field near the 500kV single-electrode high voltage dc line is simulated based on the upper-class finite element method in this paper, and an iterative convergence control algorithm is adopted to ensure iterative convergence. The influence of space charge on the surface electric field parameters of 500 kV dc insulators is studied.

Key words: Extreme high voltage, space charge, dc power transmission, insulator, flashover, the ion flow field

CLC Number:

TM85

Li Jing,Feng Yuning,Liu Jitao,Xu Pengjuan. The Impact of the 500kV Ion Flow Field of High Voltage DC Transmission Lines on Insulator Potential Distribution[J]. Journal of Electrical Engineering, 2018, 13(5): 21-26.

Figures/Tables 12

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References 9

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额定机械负荷/kN	盘径/mm		芯棒直径/mm	伞盘数		泄漏距离/mm	绝缘长度/mm	单边金属端长/mm
额定机械负荷/kN	大	小	芯棒直径/mm	大	小	泄漏距离/mm	绝缘长度/mm	单边金属端长/mm
160	144	110	24	54	54	12 786	4 240	190