Robust vibration suppression control for systems with harmonic excitation

This paper as concerned with a robust vibration suppression control for systems with harmonic excitation using H_∞ control. The feature of this method is to consider the frequency of harmonic excitation in the design procedure of H_∞ control as the weighting function. H_∞ controllers are designed for the augmented plants for the case with or without consideration of the frequency of harmonic excitation, where the authors describe in detail how to choose the weighting function on the harmonic excitation. As an example, a dry and single-phase electric transformer is used, and several simulation results show that the H_∞, controller for the augmented plant considering the frequency of harmonic excitation results is better performance