| 摘要 |
<p>Method and means for controlling an electrolysis cell for aluminium production by process control inputs, comprising means for measurement of one or more process variable(-s) where the measured value(-s) is led to an estimator. The estimator can be of the Kalman filter type, and estimates the current value of one or more process variable(-s) followed by prediction of the value of said process variable(-s) and/or other process variable(-s). The predicted value(-s) is used to calculate future input control scenario by means of a calculator. The prediction of the process variable(-s) is performed in accordance with a non -linear dynamic model being an integrated part of a process controller.</p> |
