The paper presents results of the identification of the multivariable model of the fluidized bed
boiler derived in the form of transfer function matrix. Conditions of the experiment that ensure
the identifiability of model dynamics while limiting the risk of emergency boiler shutdown was
proposed. Typical disturbances of the combustion process including division into measurable
and immeasurable ones as well as the method to identify the impact of these disturbances on
the outputs of the model was formulated. Possible application of the model in the model-based
controllers such as predictive or adaptive IMC (Internal Model Control) was indicated.

The paper presents results of the identification of the multivariable model of the fluidized bed
boiler derived in the form of transfer function matrix. Conditions of the experiment that ensure
the identifiability of model dynamics while limiting the risk of emergency boiler shutdown was
proposed. Typical disturbances of the combustion process including division into measurable
and immeasurable ones as well as the method to identify the impact of these disturbances on
the outputs of the model was formulated. Possible application of the model in the model-based
controllers such as predictive or adaptive IMC (Internal Model Control) was indicated.