Integrated control for high accuracy complex system

摘要

For high performance outputs, industrial or technical systems development rests upon better performing components with on top a controller acting with its specific features. As ultimately a larger frequency domain than presently covered by actuators is used, robustification of controllers is required as with modern ones improved over classical PID. They usually provide more efficient splitting of frequency band into lower range for power input with high gain for performance, and higher range with small gain for robustness. However, obtained stability is only simple, and the limit is often reached for moderate performance even with high quality components for partly known and/or intrinsically too noisy systems, where performance level and power requirement cannot be simultaneously met. This effect is the larger as the system size becomes smaller, and its structure more complex as in modern micro-systems. The problem has to be reassessed, and another controller giving asymptotic stability is proposed, and further improvement by distributing the controllers location in an optimum design view of the system is analyzed on a general nonlinear split n-dimensional dynamical system.