Vladimir V. Kulikov, Nikolay N. Kutsy

Irkutsk National Research Technical University

To improve the quality of transient processes in automatic systems with a lag exceeding the largest of the object's time constants, parameter switching in the PI controller (RPC) is used. One of the problems arising in the industrial implementation of the RPS is to determine the optimal tunable parameters that deliver the extreme value to the adopted optimality criterion. Since the RPS is used and an object with a delay is considered, it is difficult to use analytical approaches to adjust it. This leads to the use of algorithmic methods. The proposed algorithm is based on a gradient procedure, in which the components of the gradient are calculated using the sensitivity functions with their known advantages. In this work, sensitivity analyzers are formed, which can be the basis of algorithms for automatic parametric optimization (APO), calculating, based on the minimum of an integral type criterion, the optimal tuning vector of the considered PI controller.

PI control, sensitivity analyzer, system with variable structure, switching line, delay, discrete system, parametric synthesis