Section 6

Question 1

In the context of Robust Controllers define Robustness

Answer 1

Robustness is defined as the minimum requirement a control system has to satisfy to be useful in a practical situation.
Typically based on the worst case scenario but may not be optimal under normal circumstances.

Question 2

Define Predictive Control

Answer 2

Where a model is used to predict the future output. The controller is designed to generate optimal input signals into the future.
Such optimisation is repeated at each sampling
instant (receding horizon).