Study on Resistance Signal of Aluminium Reduction Cells Applying Wavelet Packet
Abstract：Electrolytic cell is typically nonlinear and complex system with high temperature and strong electromagnetic fields. It is also highly erosive and time-varying. The online measurable variables are also very limited. The cell resistance is a key variable for the cell control. In this paper, a four-layer wavelet transform is used to analyze the pre-processed cell resistance signal. The norm of the wavelet coefficients after decomposition is then used to construct the characteristic vector. The Euclidean distance between the characteristic vector is calculated to extract the high frequency information from the resistance signal prior to and after the anode effect. A new method for forecast and control of anode effect is provided.
Keywords：aluminum reductioncell resistancewavelet packets analysis
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 19-23,32 )