Industrial Automatic Control Systems and Controllers Annotation << Back On the sensitivity and robust tuning of multivariate controllers in interacting control systems Smirnov N.I., Sabanin V.R., Repin A.I. The paper presents the results of comparative analysis of a two-dimensional decoupled control system with PI and PID controllers and a two-dimensional interacting control system with the same controllers and with cross couplings from one controller’s input the other’s output implemented due to the same control laws as the main ones. Optimal tuning of the analyzed controllers was undertaken with the help of authors’ version of Optim-MGA evolutionary optimization algorithm. Based on the tuning results, the sensitivity of the analyzed controllers to control plant’s dynamics change was investigated. A procedure for calculating the robust settings ensuring the specified stability factor subject to the varying plant’s dynamics. Е-mail: RepinAI@mpei.ru