The virtual input approach to direct data-based control system design: some simulation studies

The virtual input approach to direct data-based control system design is a new technique by which the control system design is carried into a controller identification problem; namely into the problem of identifying the best suited controller, out of a given class. Thus, the standard indirect path consisting of plant identification followed by model-based control system design is fully avoided. In the paper, the virtual input approach is shortly outlined; then three cases are described and briefly discussed. Specifically, the considered plants are: a robotic arm with flexible joint, a synchronous generator connected to an infinite bus, and a flexible transmission system