The design of industrial controllers with a proportional - integral - derivative (PID) control algorithm can be posing as a multiple-objective optimization problem in case that more than one source of disturbance is taken into account. There are several methodologies to convert this problem into a single cost function optimization. In this work, the Enhanced Normalized Normal Constraint method is applied for optimization of twodegree-of freedom PID controller parameters. The methodology is employed to tune the controller of a LiTaO3 thin film deposition process.
