Design of SIMO Excitation Controllers for Synchronous Generators

Stabilization of synchronous generator oscillations is investigatedby using a single-input multiple-output (SIMO) excitation controller.The feedback signals which are most effective for the damping ofelectromechanical oscillations are selected based on the participationfactors of various signals. In order to improve the dampings ofpoorly damped oscillation modes, the eigenvalues associated withthese modes are shifted to certain prespecified locations by adjustingthe parameters of the excitation controller. Time domain simulationresults are also presented to show the validity of the proposedmethod.