Experimental study on uniform temperature control for two-dimensional heating plate control

Thermal distribution in thermal processes, which is observed in both steady and transient states, causes inferior quality. Thus, uniform temperature control is extremely required in many industrial application fields for quality improvement. Conventional control based on black-box model is cheap for the control of thermal plant with strong interference. To deal with these problems, we have proposed the temperature difference model (TDM) for thermal process. However, the control system design for practical two-dimensional heating plate has not been discussed yet. In this paper, the design method of uniform temperature control for two-dimensional heating plate is proposed. And the effectiveness of the proposed system is clarified by experiments.