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Saeed, Abdulhassan & Khudair | 43

Fig.8: Series arc fault simulation model.

Fig.9: Parallel arc fault simulation model.

The simulation model for series and parallel arc faults is To simulate the FFT in MTLAB, we use the
built in MATLAB/Simulink utilizing a dyadic filter bank implemented FFT Both the normal operation current and arc
block in conjunction with a buffer block that conducts fault current reanalyzed with FFT. MATLAB Simulink
frame-based processing from the DSP system toolbox in the online by using buffer is adopted and length of FFT is 64 the
Simulink model. This procedure is the Dyadic Filter Bank's radix-2 Decimation in Time (DIT) FFT algorithm method is
Frame-Based Operation. The simulation model with a used in this case. Radix-2. The amount of data that can be
wavelet detection model of series and parallel arc fault is processed by Radix-2 is restricted to 2??[18],[19], it can be
created in MATLAB/Simulink by employing a dyadic filter seen from the simulation model of series and parallel arc
bank block to build the wavelet detection online and a buffer fault. the spectrum analyzer it used to shows the waveforms
block with a buffer size of 2^n where n is the number of in the frequency domain. This simulation models are online
levels. This buffer block does frame-based processing from model by using the implemented buffer tool. The proposed
the model's DSP system toolset. This procedure is the simulation model in MATLAB/Simulink of series and
Dyadic filter bank's Frame-Based Operation. parallel arc fault with FFT technique respectively, are shown
in Fig.10 and 11.
B. Series and Parallel Arc Fault FFT Analysis Simulation
Model