TELKOMNIKA Telecommunication, Computing, Electronics and Control
Hardware implementation of series DC arc fault protection using fast Fourier transform

TELKOMNIKA Telecommunication, Computing, Electronics and Control
Hardware implementation of series DC arc fault protection using fast Fourier transform

Arc fault protection
Fast Fourier transform
Fire hazard
Low cost microcontroller
Series DC arc fault

This paper proposes method of series direct current (DC) arc fault protection
using low cost microcontroller. Series DC arc fault occurs when gap between
conductor or wire flows a current. Series DC arc fault can cause fire hazard if
do not detected and protected. However, Series DC arc fault is difficult to
detected using conventional protection. To detect series DC arc fault
accurately using fast Fourier transform (FFT). FFT is used to transform
signal in time domain to frequency domain. Series DC arc fault has different
characteristic compared by normal current in frequency domain. Therefore,
the proposed algorithm for protection of series DC arc fault based on
magnitudes of the current in frequency domain. Hardware system is
implemented by 100 V DC power supply and DC arc fault generator. Test
result is conducted experimentally under varying of load current such as 2 A,
2.5 A, 3 A, 3.5 A, 4 A and 5 A. Experimental testing results show that Series
DC arc fault protection has time for trip of 0.48 s, 0.26 s, 1.04 s, 0.68 s, 0.44
s and 0.48, respectively. The fastest time for trip is 0.26 s with current of 2.5
A. Therefore, the proposed algorithm for series DC arc fault protection can
operate to trip accurately and have the good performance.

Dirhamsyah, Diana Alia, Dimas Okky Anggriawan

http://journal.uad.ac.id/index.php/TELKOMNIKA

Nov 25, 2020

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