A Comprehensive Arc-suppression Scheme Considering Line Voltage Drop

Abstract

The problem of single-phase grounding fault arc extinction exists for a long time in the distribution network. To improve the effect of arc-suppression in the case of a single-phase grounding fault occurring in distribution network, this paper presents a novel comprehensive arc-suppression scheme which can adapt to the variation of line parameters and transition resistance. When the transition resistance is large, the influence of line voltage drop is ignored and the transfer arc-suppression device is used to control the fault point voltage to zero. If the value of transition resistance is small, the active arc-suppression method will be utilized to achieve the goal of arc extinguishment. Effectiveness of the proposed arc-suppression scheme is verified by simulation results in MATLAB/Simulink.