Abstract:
In industrial automation is widely used the PID control algorithm and there are many
tuning methods of typical controllers as: the empirical methods based on the classical
methods of finding the tuning parameters developed by Ziegler-Nichols, analytical methods,
graph-analytical methods and methods based on the optimization techniques. A large class of
these methods require to be known the mathematical model of the technological process, that
involves to be used the identification procedure. Identification procedure suppose
mathematical modelling of the technological process, based on the experimental data
acquisition. There are two kind of identification methods: parametric and non-parametric
methods. There are a lot of parametric methods that permit to obtain the mathematical model
of the technological process as: model adjustment method, iterative optimization, neural
network etc.