A Novel PI Auto-Tuning Method for Temperature Control in a Textile Dyeing Process

In textile processes, accurate temperature control is crucial in order to achieve right first time dyeing. The widely used PI (Proportional-Integral) controllers in the industry are difficult to tune by using standard methods as the dyeing process is highly complex and batch-varying. In this paper, a novel PI auto-tuning method suitable for temperature control in a variety of textile dyeing processes is developed and implemented. Simulation and field application results are provided in order to confirm the success of the proposed technique.