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基于声学信号的工业交流三相电弧炉新电弧稳定性指标

New Arc Stability Index for Industrial AC Three-Phase Electric Arc Furnaces Based on Acoustic Signals.

作者信息

Guerra-Serrano Juan, Sánchez-Roca Angel, González-Yero Guillermo, Sánchez-Orozco Mario C, Pérez de la Parte Mercedes, Jiménez Macías Emilio, Blanco-Fernández Julio

机构信息

Integral Automation Company (CEDAI), L.Ortiz No.36 Esq.Lora, Las Tunas 75100, Cuba.

Faculty of Mechanical Engineering, Universidad de Oriente, Ave. Las Américas s/n, Santiago de Cuba 90900, Cuba.

出版信息

Sensors (Basel). 2020 Nov 30;20(23):6840. doi: 10.3390/s20236840.

DOI:10.3390/s20236840
PMID:33266004
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7730989/
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.

摘要

本研究提出了一种新的指标,用于基于三相电弧炉(EAF)在铸造不同阶段产生的声学信号来评估其熔化过程的稳定性。所提出的稳定性指标是通过对声学信号的时域和频域进行特征化而获得的。在电弧炉监测期间,使用与NI USB - 9234采集系统耦合的麦克风采集声学信号。为了验证结果,借助Circutor AR6三相电网功率分析仪测量电压和电流信号。结果表明,1至12 kHz频率范围内的声学信号能量可作为电弧炉过程稳定性的指标。最后,使用谐波失真分析方法以及电弧电压和电流信号的动态U - I特性,从过程表征方面评估所提出的稳定性指标的有效性。所获得的结果证明了该提议的有效性,并为从声学信号实现电弧炉过程自动控制的进展奠定了基础。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/68b18451d3e9/sensors-20-06840-g014.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/8133e797b31e/sensors-20-06840-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/242741c99721/sensors-20-06840-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/68b18451d3e9/sensors-20-06840-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/fdd352c74fac/sensors-20-06840-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/1310d9f22106/sensors-20-06840-g002.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/df1d9ce744f5/sensors-20-06840-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/f85bcc110609/sensors-20-06840-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/e4dfab97dba2/sensors-20-06840-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/4aaad6339afe/sensors-20-06840-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/8133e797b31e/sensors-20-06840-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/242741c99721/sensors-20-06840-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/426363be05ac/sensors-20-06840-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/a26ac6ea9afd/sensors-20-06840-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/830f5cf96411/sensors-20-06840-g012.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4fcd/7730989/68b18451d3e9/sensors-20-06840-g014.jpg

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本文引用的文献

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