Abstract:
The D-stability robustness for linear parameter perturbed continuous systems is studied. If all eigenvalues of a nominal system are located in a specified sector of the complex plane,then the proposed both structured and unstructured perturbation bounds guarantee that all the eigenvalues of the perturbed system remain inside the same sector.And we apply the results of the structured perturbation bounds to the analysis for eigenvalue clustering of interval systems.A complete set of bounds on the perturbation vector is given so that all the eigenvalues of interval parameter systems are also in the same sector region.