Increasing the robustness of the digital controller

Abstract

Different variants of application of the deadbeat digital controller to use under conditions of restriction on control action are considered in the article. For digital control of deadbeat controller type, a method for calculating the parameters of the controller for two and three steps of the free formation of the control action at the start has been obtained. The calculation procedure was developed under condition of forming of a controlling pulse of the same amplitude. Expressions for calculating the maximum possible amplitude of the control action for a different number of steps of the free formation of the control action are obtained. By means of digital controller's simulation modeling the robustness estimation of variants of calculation of parameters of deadbeat controller is made. It is shown that an increase in the number of steps of the free will increase the robustness of the work.