Modelling of an Integrated Superheater based on a Wiener Approach

Authors:	Mononen Jari, University of Oulu, Finland Ikonen Enso, University of Oulu, Finland
Topic:	6.3 Power Plants and Power Systems
Session:	Thermal Power Plant Control
Keywords:	Identification, nonlinear gain, linear dynamics, heat flows, heat exchangers

Abstract

This paper conciders identification of a multiple-input single-output Wiener model of a new type of superheater integrated to a CFB boiler. The static part is based on energy- and mass balances. Simultaneous estimation of model parameters in both static and dynamic parts was based on the industrial data from an 80 MW CFB boiler. The results indicate that the approach can be satisfactorily used to capture and describe the steam temperature s in a wide range of variation in the input variables.