A generalized predictive controller to a thermal process for batch dyeing process

Abstract

A generalized predictive control (GPC) is introduced, which is applied to the temperature control of a batch-dyeing machine. GPC has good robust and performance in control domain compared to tradition PID, but it is more complex than PID, which means that it is uneasy to implement and tune the GPC in some controllers having only limited mathematic computation ability. But for the fact that a wide class of industrial processes including dyeing process can be modelled approximately with few parameters, the GPC control law can be directly related to the process parameters with some simple polynomials functions. With this method, GPC can be implemented and tuned in a straightforward manner as simple as the PID and thus more industrial practices including dyeing process would enjoy the good performance of GPC.