Compensated hybrid PI controllers for sampled-data controlled systems

Structural Properties of Multirate Sampled-Data Systems

The application of Networked Control Systems (NCS) in which sensory and control signals are transmitted via shared data communication networks, is growing significantly and these systems have been the subject of research during the last decade. On the other hand, multirate sampled data systems have been investigated since a long time. In this paper, conditions under which a networked control sy...

Stability Controllers for Sampled Switched Systems

We consider in this paper switched systems, a class of hybrid systems recently used with success in various domains such as automotive industry and power electonics. We propose a state-dependent control strategy which makes the trajectories of the analyzed system converge to finite cyclic sequences of points. Our method relies on a technique of decomposition of the state space into local region...

Efficient hybrid simulation of autotuning PI controllers

Autotuning methods are typically conceived as procedures, thus need simulating as digital blocks. However, when no autotuning is in progress, it is far more efficient to represent the tuned controller as a continuous-time system, to exploit variable-step integration. This manuscript presents the first nucleus of a Modelica library of autotuning controllers, where the problem just mentioned is t...

Robust hybrid control for sampled-data delayed systems

Synthesizing Controllers for Hybrid Systems

A methodology for synthesizing control laws of hybrid systems is proposed using the hybrid automaton framework. The objective is to synthesize guards for making phase transitions to ensure that the system satisses global invariance over the whole state space. Classical analysis is used to derive a controller given the phases, transitions and global invariance of a hybrid system. The methodology...