Fremgangsmate og anordning for styring av en elektrolysecelle

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 curren...

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Bibliographische Detailangaben
1. Verfasser:	KOLAS STEINAR
Format:	Patent
Sprache:	nor
Schlagworte:	APPARATUS THEREFOR CHEMISTRY CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FUNCTIONAL ELEMENTS OF SUCH SYSTEMS METALLURGY MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS REGULATING
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Beschreibung
Zusammenfassung:	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.