A DESIGN PROCEDURE FOR PI OUTPUT-FEEDBACK MODAL CONTROLLERS

Universal Output-feedback Siso Controllers

It is proved in the paper that practically all known higher-order sliding controllers can be combined with recently developed 2-sliding-mode-based differentiators yielding universal output-feedback Single-Input-Single-Output (SISO) controllers. These controllers can be applied at least locally, whenever the system relative degree is known. The convergence is global, provided the system relative...

Design of Robust PI Controllers for a Hydrogenerator Unit

In this paper, the sixteen plants theory (SPT) is applied to a hydrogenerator system model, which incorporates parametric uncertainty, in order to design a robustly stabilizing PI controller, which enhances the stability characteristics of the plant over a variety of ope-rating points. Key-Words: Power systems, parametric uncertainty, robust stabilization, Kharitonov theorem.

Formation Flying by Output Feedback Controllers

The relative motion of a follower satellite with respect to the leader in a given circular orbit is described by nonlinear autonomous differential equations. The linearized equations around the null solution are known as Hill-Clohessy-Wiltshire (HCW) equations [1, 2]. The in-plane and out-of-plane motions are independent. The out-of-plane motion is always periodic, while the in-plane motion bec...

Robust event-triggered output feedback controllers for nonlinear systems

We address the robust stabilization of nonlinear systems subject to exogenous inputs using event-triggered output feedback laws. The plant dynamics is affected by external disturbances, while the output measurement and the control input are corrupted by noises. The communication between the plant and the controller is ensured by a digital channel. The feedback law is constructed in continuous-t...

Output Feedback Passivity Based Controllers for Dynamic Positioning of Ships