CAJ | 학술논문

铝电解槽是典型的非线性复杂系统，具有高温、强电磁场、强腐蚀性、时变性、在线连续检测量少等特征，而槽电阻信号是电解槽控制的关键变量．对槽电阻信号进行预处理后，首次采用四层小波包变换对其进行分析，以分解后的各小波系数的模构建了特征向量；通过计算特征向量间的欧式距离，提取出阳极效应前和正常期的槽电阻高频特征信息．这为提前作出阳极效应预报及控制提供了新途径．
려전해조시전형적비선성복잡계통，구유고온、강전자장、강부식성、시변성、재선련속검측량소등특정，이조전조신호시전해조공제적관건변량．대조전조신호진행예처리후，수차채용사층소파포변환대기진행분석，이분해후적각소파계수적모구건료특정향량；통과계산특정향량간적구식거리，제취출양겁효응전화정상기적조전조고빈특정신식．저위제전작출양겁효응예보급공제제공료신도경．
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.