Ceramics-Silikáty 35, (1) 9 - 19 (1991) |
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APPLICATION OF STATISTICAL IDENTIFICATION TO PHYSICAL MODELS OF GLASS FURNACES - PART II
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Kasa Stanislav 1, Lisý Antonín 1, Vichr Roman 2
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1 Department of Silicate Technology, Institute of Chemical Technology, Suchbátarova 5, 166 28 Prague 6, Czechoslovakia
2 Institute of the Chemistry of Glassy and Ceramic Materials, Czechoslovak Academy of Sciences,
Lipová 5, 120 00 Prague 2, Czechoslovakia
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From the mathematical point of view and with respect to control, a glass furnace can be regarded as a multidimensional system which can be described by appropriate differential equations. Estimation of the parameters of the differential equations was verified on a physical model of a glass furnace and the dynamic properties of the furnace were measured on the model by selected jump changes of the input electric power. The responses of the output variables, i.e. temperatures at the chosen points of the physical model of the melting furnace section, were studied by application of a pseudo-random binary signal to the input. The estimates of the differential equation parameters were likewise established by calculation, using the least square method and the extended least square method. The final results describe very satisfactorily the dynamic behaviour of the furnace. |
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