Tuning of controllers to the fourth order advance delay objects with nonminimal phase and astatism

Abstract

A procedure of tuning of linear controllers to the fourth order advance delay objects’ models with nonminimal phase and astatism is proposed in this paper. The object is presented with transfer function that contains one positive zero and fouth negative poles. The maximal stability method is used for tuning of linear controllers. The tuning procedure of controllers represents an algebraic method with a reduce number of calculations. The results obtained on tuning of controllers through the selected method are compared with the results obtained in conformity of the known methods.