Synthesis of a Robust Controller for a Small Turbojet Engine

Abstract

The paper considers an automatic control system for a small gas turbine engine. The synthesis of a controller providing an increase in the speed of the control system was carried out using the standard procedures of the Matlab system. The transfer function of the control object is obtained with interval coefficients that take into account the possible effects of the uncertainties of the models under study. A graphical method of displaying the obtained results in the form of displaying the fuzzy branches of the root locus on the complex plane is used, which clearly shows the robust absolute stability of the system under study. The superiority of the proposed result over the existing ones is demonstrated by numerical examples. The simulation performed in the Matlab environment confirmed the correctness of the obtained results.