ROBUSTNESS ANALYSIS OF THE UNMANNED AERIAL VEHICLE CONTROL SYSTEMS AT PARTIAL DEGRADATION OF THE MOTOR EFFICIENCY

Abstract

A method for analyzing the robustness of the UAV control systems with respect to possible partial efficiency degradation of motors is proposed. The ultimately allowable efficiency degradation is determined by a simple graphical procedure on the complex plane of the Nyquist graphs of the system’s separate channels. A numerical example illustrating the proposed method of analysis of robustness of the UAV control system is given.