This paper describes a new algorithm, named the sensitive pole algorithm, for the automatic
computation of the eigenvalues (poles) most sensitive to parameter changes in large-scale
system matrices. The effectiveness and robustness of the algorithm in tracing root-locus
plots is illustrated by numerical results from the small-signal stability analysis of realistic
power system models. The algorithm can be used in many other fields of engineering that
also study the impact of parametric changes to linear system models.

Summary form only given. This paper describes a new algorithm, named the sensitive pole
algorithm, for the automatic computation of the eigenvalues (poles) most sensitive to
parameter changes in large-scale system matrices. The effectiveness and robustness of the
algorithm in tracing root-locus plots is illustrated by numerical results from the small-signal
stability analysis of realistic power system models. The algorithm can be used in many other
fields of engineering that also study the impact of parametric changes to linear system …