S22  Mecatrônica    Titulo: TEMPERATURE CONTROL OF MULTI-INPUT MULTI-OUTPUT CROSS-COUPLED INDUSTRIAL OVENS   Resumo : THIS PAPER CONSIDERS THE APPLICATION OF FREQUENCY DOMAIN TECHNIQUES TO THE DESIGN OF MULTIVARIABLE OUTPUT FEEDBACK CONTROLLERS FOR NONLINEAR, MULTIPLE-HEATING-ZONES INDUSTRIAL OVENS. SPECIFICALLY, THE APPLICATION OF MULTIVARIABLE FREQUENCY DOMAIN TECHNIQUES TO A NONLINEAR OVEN WITH SIX HEATING ZONES IS PRESENTED. DUE TO THE OVEN CONSTRUCTION, THE HEAT FLOW RATE AMONG THE ZONES WAS HIGH AND SO IT WAS THE CROSS-COUPLING BETWEEN INPUTS AND OUTPUTS. THE SYSTEM DECOUPLING IS REACHED BY USING A PRE-COMPENSATOR TUNED AT 0 RD/MIN. SINCE THE PRE-COMPENSATED PLANT BECAME CLEARLY DIAGONAL DOMINANT AT LOW FREQUENCIES, THE SYSTEM SPECIFICATION ARE REACHED USING A MIMO DIAGONAL PID CONTROLLER. MULTIVARIABLE FREQUENCY DOMAIN TECHNIQUES ARE USED TO ANALYZE THE SYSTEM, TO OBTAIN THE SYSTEM DECOUPLING AND TO VALIDATE A SINGLE-INPUT SINGLE-OUTPUT (SISO) LINEAR CONTROL DESIGN APPROACH. SIMULATION RESULTS ARE PRESENTED. KEY WORDS. MULTIVARIABLE FREQUENCY DOMAIN CONTROL. TEMPERATURE CONTROL.     Autores : de Araujo, Lauzier Pereira Galvez, Jose Maria     Trabalho Completo :   COBEM99 | Comissão  Organizadora | Palestras | Sessões Técnicas | Autor | Simpósios e Sessões Especiais | Revisores |  Título  dos  Trabalhos | Local