Arc Fault Recognition Method Using Box Dimension and Information Dimension as Discriminating Features

This paper put forward to the fractal theory into electrical safety protection system as the arc fault recognition method.This paper took the phase plane figure of the arc fault current waveform in electric lines as fractal figure and analyzed processing method of two-dimensional fractal figure in the fractal theory.This paper studied the box dimension of the fractal figure and dual graphics features reflected by information dimension which is used to identify the arc fault.This paper studied the fast calculation method of box dimension and information dimension,and applied MATLAB software to calculate the box dimension and message dimension of current phase plane figure.The simulated results test the feasibility and effectiveness of fractal theory applied in this field.