Custom Matlab toolbox for systems with parametric uncertainties and time delay with factorization for two-degree-of-freedom feedback loop

Abstract

The Robust Control Toolbox for Time Delay Systems with Parametric Uncertainties for the Matlab system is described in this paper. The D-K iteration and the algebraic approach implemented for general 3rd order system with parametric uncertainties in numerator and denominator of plant transfer function and uncertain time delay with factorization of simple feedback controller to the parts in two-degree-of-freedom feedback interconnection is included in the toolbox. The multiplicative uncertainty treats uncertain time delay, the general interconnection for the systems with parametric uncertainty in numerator and denominator is used for modelling the parametric uncertainty. User-friendly interface empowering full operation is implemented in the toolbox.