A Design of H∞ Model-matching Multivariable Controller by Spectral Analysis using Model-free Controller Tuning

This paper proposes the model-free multivariable controller tuning method for the H-infinity model matching problem based on spectral analysis. This method provides a controller without the plant model by using only Input/Output data. It evaluates the H-infinity norm of the difference between the reference model and the achieved closed-loop system. Therefore, this method can design a controller in consideration of the worst-case performance. The proposed method is numerically verified via the experimental apparatus.