Paper Info
Title
New Arc Stability Index For Industrial Ac Three-Phase Electric Arc Furnaces Based On Acoustic Signals
Abstract
This research proposes a new index to evaluate the stability of the melting process, in three-phase electric arc furnaces (EAFs), based on the acoustic signals generated during the different stages of the casting. The proposed stability index is obtained by characterizing the time and frequency domain of the acoustic signals. During EAF monitoring, acoustic signals were acquired using a microphone coupled to an NI USB-9234 acquisition system. To validate the results, the voltage and current signals were measured with the aid of a Circutor AR6 power analyzer for three-phase electrical networks. The results showed that the acoustic signal energy in the frequency range of 1 to 12 kHz can be used as an indicator of the process stability in the EAF. Finally, the validity of the proposed stability index is evaluated from the process characterization using the harmonic distortion analysis methods and the dynamic U-I characteristics of the arc voltage and current signals. The results obtained demonstrated the effectiveness of the proposal and constitute a starting point for advances in the automatic control of the process in the EAF, from the acoustic signals.
Year
DOI
Venue
2020
10.3390/s20236840
SENSORS
Keywords
DocType
Volume
stability index, electric arc furnace, arc stability, acoustic emission, signal processing
Journal
20
Issue
ISSN
Citations 
23
1424-8220
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Juan Guerra-Serrano100.34
Angel Sánchez-Roca200.34
Guillermo González-Yero300.34
Mario C Sánchez-Orozco400.34
Mercedes Pérez de la Parte532.13
E. Jiménez Macías6113.76
Julio Blanco Fernandez701.69