The torque controller, cascaded with an inner motor velocity control loop, is based on H∞ criterion to achieve good system performance with relation to parametric uncertainties and external disturbances.
The inner control loop is designed by means of the standard H2/H∞ control methodologies based on Linear Matrix Inequalities (LMIs).
The overall control loop is depicted in Figure 5. Figure 5 Overview of the decision loop.
In this paper, a control strategy based on two nested control loops is presented.
Currently, many control performance assessment methods of cascade control loops are developed based on the assumption that all the disturbances are subject to Gaussian distribution.
Additionally, sufficient conditions are given to guarantee the closed-loop stability of the observer based control.
The performance of the nonlinear control loop which is based on these nonlinear state estimation methods is evaluated through simulation tests.
A Concentrated Solar Power Plant (CSPP) system has been modelled and a stability and performance analysis has been carried out, focusing on power control loop, which is normally based on standard PID.
A hierarchical control architecture based on two Model Predictive Control (MPC) loops is here considered.
The control law of the minor loop is designed based on a Lyapunov's theory.
