Robust Control of Bifurcating Power Systems by Feedback Linearization

{In many power systems, the operating margin may be investigated and improved by considering the bifurcations in their models. Control of (unstable) bifur-cations, i.e. delay or elimination of them, may be possible through feedback linearizing control. Two major issues in implementing this approach are the relative degree of the system and the eeects of model uncertainties. In this work, control of an unstable Hopf bifurcation, through feedback linearization in the presence of parametric uncertainties is carried out. The additional constraints imposed on the controller due to the presence of uncertainties are also discussed.