A Frequency Domain Control Design for Multivariable Industrial Electrical Ovens

José Maria Galvez¹

¹ Federal University of Minas Gerais

doi:10.20906/CPS/COB-2015-1476

Resumo

This paper considers the application of frequency domain techniques to the design of a multivariable feedback controller for nonlinear, multiple-heating-zones electrical oven systems. The control of multivariable systems has been a wide area for investigation of new methods and techniques. One of the primary objectives of the control design problem is to overcome the usually existent cross-coupling between inputs and outputs which obscures the effects of a specific loop controller on the system behavior. In the case of temperature control the problem is still more challenging due to the time delays and nonlinearities involved in the process. Multivariable frequency domain techniques are used to analyze the system, to improve the system decoupling and to validate the control design approach. Simulation results are presented.

Palavras-chave: Multivariable Frequency Domain Control Design; Industrial Electrical Ovens; Time Delay