In this paper, a linear active disturbance rejection controller is proposed for a waste heat recovery system using an organic Rankine cycle process, whose model is obtained by applying the system identification technique. The disturbances imposed on the waste heat recovery system are estimated through an extended linear state observer and then compensated by a linear feedback control strategy. ...

The problem of persistent bounded disturbance rejection for linear impulsive systems with parametric uncertainty is considered by Lyapunov function and positively invariant set analysis method. A sufficient condition for robustly internal stability and L1-performance of the impulsive systems is obtained in terms of linear matrix inequalities. Based on this result, a simple approach to the desig...

background: in chile, a new law introduced in march 2012 lowered the blood alcohol concentration (bac) limit for impaired drivers from 0.1% to 0.08% and the bac limit for driving under the influence of alcohol from 0.05% to 0.03%, but its effectiveness remains uncertain. the goal of this investigation was to evaluate the effects of this enactment on road traffic injuries and fatalities in chile...

Dynamical multi-agent systems are being extensively studied by researchers in the field of control theory. It is due to the multi-agents appear in different study subjects as for example in the consensus problem of communication networks, formation control of mobile robots or cooperative control of unmanned aerial vehicles. The disturbance decoupling problem for linear dynamical systems with no...

A neural model-based predictive control scheme is proposed for dealing with steady-state offsets found in standard MPC schemes. This structure is based on a constrained local instantaneous linear model-based predictive control methodologies together with a static offset pre-filter for assuring free tracking errors and disturbance rejection features. A non-linear state-space neural network archi...

This paper considers the problem of optimal L 2 disturbance attenuation with global asymp-totic stability for strict feedback nonlinear systems. It is known from previous results that this problem cannot be solved with an arbitrary level of disturbance attenuation (almost disturbance decoupling) if the disturbance input drives unstable zero dynamics of the system. In this case, the problem can ...

In this paper, a nonlinear discrete-time system in the presence of input disturbance and measurement noise is approximated by subsystems described by the linear pulse-transfer functions with the subjection of input disturbance and measurement noise. Although the input disturbance and the measurement noise are unknown, they are modeled as known pulse-transfer functions. The approximation error b...

We study disturbance decoupling for linear descriptor systems. Compared to previous approaches, where state feedback is used, we use the concept of behavioral feedback which allows to study a larger class of systems. We derive geometric characterizations for solvability of the disturbance decoupling problem following the classical approach. Exploiting the freedom in the choice of the behavioral...

Hydraulic actuators are well described by nonlinear system modeling. Nonlinear control for differential cylinders may be realized in order to obtain disturbance decoupling. However, such a system cannot be decoupled from the disturbance and therefore it is necessary to compute a nonlinear disturbance attenuation controller that reduces the influence of the disturbance with respect to the system...

For early-successional species, road and powerline cuts through forests provide refugia and source populations for invading adjacent forest gaps. Within an 800 km’ forest matrix in South Carolina, we determined if width. disturbance frequency or linear features of road and powerline cuts influenced the mound distribution of the red imported tire ant, Solenopsis invicta Buren. For each of live l...