A new fast algorithm for robust stability analysis of linear control systems with linearly correlated parametric uncertainties

In this paper a fast algorithm is proposed for the computation of stability margins in parameter space for linear control systems subject to structured uncertainties. The case in which plant transfer function coefficients are affine in a set of physical uncertain parameters is considered. The paper shows also how the proposed algorithm can be used to solve another interesting problem in robust control analysis, i.e. the determination of the region of pole location of a closed loop control system including an entire family of uncertain plants