Effect of Electronically Enhanced Driver Behavior on Freeway Traffic Flow
Hybrid and distributed systems and control · •Freeway and urban traffic networks integration of...
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1Hybrid and distributed systems and control
Hybrid and distributedsystems and control
Overview
Introduction week DCSC
September 3, 2013
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2Hybrid and distributed systems and control
Team membersBart De SchutterTon van den BoomTamás Keviczky[ + vacancy ]
+ 3 postdocs
+ 19 PhD students
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3Hybrid and distributed systems and control
Objectives and research area• Development of systematic methods to analyze, monitor, and
control complex large-scale systems consisting of interacting subsystems
• Inclusion of hybrid aspects (i.e. continuous and discrete-event behavior – switching)
• Distributed and multi-level control with coordination within and across all levels
• Focus on both fundamental research and target applications
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4Hybrid and distributed systems and control
Main research topics
• Model predictive control• Distributed estimation and control• Multi-level and multi-agent control• Hybrid and discrete-event systems • ...
• Transportation networks (rail, road)• Infrastructure networks (water,
energy, logistics)• ...
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5Hybrid and distributed systems and control
• Control approach based on prediction (via model) and optimization
• Nonlinear and robust MPC• MPC for (switching)
max-plus-linear systems• Efficient implementation• Large-scale systems
• Main applications:railway & road traffic,infrastructure,robotics, …
Model predictive controlTon van den Boom, Tamás Keviczky, Bart De Schutter, …
Monitoring
Train positions
Controlactions
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6Hybrid and distributed systems and control
Distributed estimation and control
• Distributed MPC→ coordination &
cooperation
Tamas Keviczky, …
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7Hybrid and distributed systems and control
Distributed estimation and control
• Focus on problems where centralized solutions are prohibitive too expensive to implement, not feasible computationally not feasible due to communication constraints
• Develop systematic design methods to distribute and coordinate the global optimization problem among local controllers
• Exploit problem structure whenever possible
• Main design philosophy relies on solving local problems based on models of neighbors respecting limited communication
Tamas Keviczky, …
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8Hybrid and distributed systems and control
Multi-level and multi-agent control
• Divide system along various temporal and spatial scales• Multiple control layers, intelligent control agents• Objective: coordination within and across all layers• Methods: MPC, game-based methods, ant colony optimization
Bart De Schutter, Tamás Keviczky, …
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9Hybrid and distributed systems and control
Transportation networks
• Freeway and urban traffic networks traffic jams & congestion → time losses, costs,
incidents → dynamic traffic management integration of various control measures (speed
limits, ramp metering, route guidance, …)
Bart De Schutter, Ton van den Boom, Hans Hellendoorn, …
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10Hybrid and distributed systems and control
Transportation networks
• Freeway and urban traffic networks integration of various control measures
(speed limits, ramp metering, traffic signals, route guidance, …)
integration of freeway & urban sustainable mobility: reduction of emissions
and fuel consumption multiple objectives – balance between user &
system optimum large-scale traffic networks
Bart De Schutter, Ton van den Boom, Hans Hellendoorn, …
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11Hybrid and distributed systems and control
Transportation networks
• Intelligent vehicles automated highway systems
→ hierarchical control cooperative intelligent vehicle
highway systems+ cubrecars→ distributed and multi-level control
• Railway networks operational management (re)scheduling preventive maintenance service cointracting
Bart De Schutter, Ton van den Boom, Hans Hellendoorn, …
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12Hybrid and distributed systems and control
Infrastructure networks
• Water networks: flood prevention irrigation
→ maintain water levels within bounds
• Electricity networks: smart grids energy hubs (gas/electricity)
• Logistic systems: baggage handling container terminals → routing and scheduling
Bart De Schutter, Hans Hellendoorn, Tamás Keviczky, …
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13Hybrid and distributed systems and control
Hybrid and discrete-event systems
• Discrete-event systems event-driven: state changes due to
occurrence of event examples: queuing lines in supermarket,
manufacturing system, railway network max-plus algebra as main modeling
frameworkmax: synchronization, +: durations
focus on stability + analysis + control (MPC) + stochastic systems
Bart De Schutter, Ton van den Boom, …
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14Hybrid and distributed systems and control
Hybrid and discrete-event systems
• Hybrid systems combination of continuous and discrete-
event dynamics (switching) examples: electrical networks (switches,
diodes), beer production, distillation column, flexible manufacturing systems, road management
Bart De Schutter, Ton van den Boom, Alessandro Abate, …
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15Hybrid and distributed systems and control
Hybrid and discrete-event systems
• Hybrid systems combination of continuous and discrete-
event dynamics (switching) examples: electrical networks (switches,
diodes), beer production, distillation column, flexible manufacturing systems, road management
various frameworks: piecewise affine, mixed-integer models, switching max-plus
focus on control (MPC) and analysis, including stochastic hybrid systems
Bart De Schutter, Ton van den Boom, …
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