Title
Simulation-based assessment of natural robustness of freeway traffic systems controlled via MPC
Abstract
Model Predictive Control schemes have been often studied for defining suitable traffic control laws for freeway systems. If, as known, MPC allows to update the control law in real time depending on the measurements on the system state, its main drawback stands in the high computational effort required to solve a finite-horizon optimal control problem at each time step. In order to reduce the overall control computational effort and then to increase the applicability of MPC in freeway traffic systems, a control law precalculated off line on the basis of a nominal system could be applied. Of course this is effective only if the system, that is characterized by uncertainties such as the variations of the mainstream and on-ramp demands with respect to the nominal ones, results to be naturally robust. The objective of this paper is to evaluate if the MPC law obtained by considering the nominal system for prediction remains effective when applied to the system affected by disturbances. To this purpose, the property of natural robustness is formally introduced and is studied via simulation.
Year
DOI
Venue
2014
10.1109/MED.2014.6961548
Control and Automation
Keywords
DocType
ISSN
optimal control,predictive control,road traffic control,robust control,MPC,finite-horizon optimal control problem,freeway traffic systems,model predictive control schemes,natural robustness,nominal system,simulation-based assessment,traffic control laws
Conference
2325-369X
Citations 
PageRank 
References 
1
0.38
5
Authors
3
Name
Order
Citations
PageRank
A. Ferrara1953126.03
Simona Sacone212932.17
Silvia Siri38821.27