Spectrum Analysis of Anode Rod Current in 300kA Aluminum Reduction Cells Based on Hilbert-Huang Transform

DOI

10.2991/emcpe-16.2016.1How to use a DOI?

Keywords

Aluminium Electrolysis; Anode Current; Spectrum Analysis; Hilbert-Huang Transform

Abstract

There are dozens of anodes work in aluminum electrolysis at the same time. Because of the particularity of anode work and the waving ability of the melt, different current flow through different anode. Spectral characteristics of the current signal are important parameters of internal status changes of aluminum reduction cell. Hilbert-Huang Transform is applied to analyze the spectrum of anode current signal. The procedure include Empirical Mode Decomposition, Hilbert transform, marginal spectrum calculation, and compare it to FFT algorithm. The results show that the frequencies of the aluminum electrolysis anode current signal are between 0.004Hz and 0.005Hz. Finally, the technological characteristics of aluminum electrolysis shows the rationality of the analysis and further the feasibility of fault diagnosis of aluminum reduction cell.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shuiping Zeng
AU  - RuiQiang Li
PY  - 2016/08
DA  - 2016/08
TI  - Spectrum Analysis of Anode Rod Current in 300kA Aluminum Reduction Cells Based on Hilbert-Huang Transform
BT  - Proceedings of the 2016 5th International Conference on Environment, Materials, Chemistry and Power Electronics
PB  - Atlantis Press
SP  - 1
EP  - 5
SN  - 2352-5401
UR  - https://doi.org/10.2991/emcpe-16.2016.1
DO  - 10.2991/emcpe-16.2016.1
ID  - Zeng2016/08
ER  -