Abstract
AbstractIn this work the authors propose a method to visualize local robustness properties of a nonlinear control system by means of a projection mapping defined by a self-organizing map (SOM). This kind of visualization is potentially useful for control system design since local properties of the closed loop control system –sensitivity functions– are visualized, revealing operating points of critical performance, and suggesting tuning of the controllers or even adaptive control strategies by means of localized controllers. The proposed method is verified under simulation, showing a good coincidence between the small signal response around different operating points and maps of models built automatically from control system data under different working conditions. Finally, some concluding remarks, including limitations of the proposed method and suggestions for future work are given.
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