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Yuan, S. (author), Zhang, Lixian (author), De Schutter, B.H.K. (author), Baldi, S. (author)In this paper, a novel Lyapunov function is proposed to study switched linear systems with a switching delay between activation of system modes and activation of candidate controller modes. The novelty consists in continuity of the Lyapunov function at the switching instants and discontinuity when the system modes and controller modes are...journal article 2018
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van den Boom, A.J.J. (author), Bruijn, Hilco de (author), De Schutter, B.H.K. (author), Özkan, Leyla (author)In this paper a new iterative approach is proposed for the design of a combined real-time scheduling and control algorithm that can be applied to industrial systems that are described by a hybrid model with a (semi-)cyclic behavior. Traditionally scheduling and control problems are considered in a sequential way. First the scheduling problem...journal article 2018
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Su, Z. (author), De Schutter, B.H.K. (author)We consider optimal scheduling of track maintenance activities for a railway network divided into sections. The goal is to find an optimal time schedule for the maintenance activities and optimal routes for the maintenance crew (including all necessary equipment and technicians) that minimize the total setup costs and the travel costs over...journal article 2018
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Luan, X. (author), De Schutter, B.H.K. (author), Corman, F. (author), Lodewijks, G. (author)In railway operations, when a disruption occurs, train dispatchers aim to adjust the affected schedule and to minimize negative consequences during and after the disruption. As one of the most important components of the railway system, railway signals are used to guarantee the safety of train services. We study the train dispatching problem...journal article 2018
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Luan, X. (author), De Schutter, B.H.K. (author), van den Boom, A.J.J. (author), Corman, F. (author), Lodewijks, G. (author)We introduce a distributed optimization method for improving the computational efficiency of real-time traffic management approaches for large-scale railway networks. We first decompose the whole network into a pre-defined number of regions by using an integer linear optimization approach. For each resulting region, a mixed-integer linear...journal article 2018
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Lin, S. (author), Pan, T. L. (author), Lam, W.H. (author), Zhong, R. X. (author), De Schutter, B.H.K. (author)In order to investigate the stochastic features in urban traffic dynamics, we propose a Stochastic Link Flow Model (SLFM) for signalized traffic networks with demand uncertainties. In the proposed model, the link traffic state is described using four different link state modes, and the probability for each link state mode is determined based...journal article 2018
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Dominguez Frejo, J.R. (author), Papamichail, Ioannis (author), Papageorgiou, Markos (author), De Schutter, B.H.K. (author)This paper proposes a new macroscopic model for Variable Speed Limits (VSLs), combining characteristics of previously proposed models, in order to have the capability of modeling different capacities, critical densities, and levels of compliance for links affected by speed limits. Moreover, the effects of VSLs on the fundamental diagram of...journal article 2018
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- Leuthold, Rachel (author), De Schutter, Jochem (author), Malz, Elena (author), Gros, Sébastien (author), Diehl, Moritz (author) conference paper 2017
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- De Schutter, Jochem (author), Diehl, Moritz (author) conference paper 2017
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Verbert, K.A.J. (author), Babuska, R. (author), De Schutter, B.H.K. (author)Even though various frameworks exist for reasoning under uncertainty, a realistic fault diagnosis task does not fit into any of them in a straightforward way. For each framework, only part of the available data and knowledge is in the desired format. Moreover, additional criteria, like clarity of inference and computational efficiency,...journal article 2017
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- Hidayat, Z. (author), Babuska, R. (author), Nunez, Alfredo (author), De Schutter, B.H.K. (author) journal article 2017
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Jamshidi, A. (author), Faghih Roohi, S. (author), Hajizadeh, S. (author), Nunez, Alfredo (author), Babuska, R. (author), Dollevoet, R.P.B.J. (author), Li, Z. (author), De Schutter, B.H.K. (author)Railway infrastructure monitoring is a vital task to ensure rail transportation safety. A rail failure could result in not only a considerable impact on train delays and maintenance costs, but also on safety of passengers. In this article, the aim is to assess the risk of a rail failure by analyzing a type of rail surface defect called squats...journal article 2017
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Jamshidnejad, A. (author), De Schutter, B.H.K. (author)Fundamental macroscopic traffic variables (flow, density, and average speed) have been defined in two ways: classical (defined as either temporal or spatial averages) and generalized (defined as temporal-spatial averages). In the available literature, estimation of the generalized variables is still missing. This paper proposes a new...journal article 2017
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Xu, J. (author), Buşoniu, Lucian (author), De Schutter, B.H.K. (author)We consider the infinite-horizon optimal control of discrete-time, Lipschitz continuous piecewise affine systems with a single input. Stage costs are discounted, bounded, and use a 1 or ∞-norm. Rather than using the usual fixed-horizon approach from model-predictive control, we tailor an adaptive-horizon method called optimistic planning for...conference paper 2017
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Dang Doan, Minh (author), Diehl, Moritz (author), Keviczky, T. (author), De Schutter, B.H.K. (author)In this paper we introduce an iterative distributed Jacobi algorithm for solving convex optimization problems, which is motivated by distributed model predictive control (MPC) for linear time-invariant systems. Starting from a given feasible initial guess, the algorithm iteratively improves the value of the cost function with guaranteed...conference paper 2017
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Verbert, K.A.J. (author), De Schutter, B.H.K. (author), Babuska, R. (author)Last-minute maintenance planning is often undesirable, as it may cause downtime during operational hours, may require rescheduling of other activities, and does not allow to optimize the management of spare parts, material, and personnel. In spite of the aforementioned drawbacks of last-minute planning, most existing methods plan maintenance...journal article 2017
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Alavi, F. (author), Park Lee, E.H. (author), van de Wouw, N. (author), De Schutter, B.H.K. (author), Lukszo, Z. (author)Fuel cell electric vehicles convert chemical energy of hydrogen into electricity to power their motor. Since cars are used for transport only during a small part of the time, energy stored in the on-board hydrogen tanks of fuel cell vehicles can be used to provide power when cars are parked. In this paper, we present a community microgrid...journal article 2017
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Ruelens, F (author), Claessens, BJ (author), Vandael, S (author), De Schutter, B.H.K. (author), Babuska, R. (author), Belmans, R (author)Driven by recent advances in batch Reinforcement Learning (RL), this paper contributes to the application of batch RL to demand response. In contrast to conventional model-based approaches, batch RL techniques do not require a system identification step, making them more suitable for a large-scale implementation. This paper extends fitted Q...journal article 2017
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Verbert, K.A.J. (author), Babuska, R. (author), De Schutter, B.H.K. (author)Interdependencies among system components and the existence of multiple operating modes present a challenge for fault diagnosis of Heating, Ventilation, and Air Conditioning (HVAC) systems. Reliable and timely diagnosis can only be ensured when it is performed in all operating modes, and at the system level, rather than at the level of the...journal article 2017
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Zheng, Kunpeng (author), Adriaensens, Peter (author), De Schutter, Geert (author), Ye, G. (author), Taerwe, Luc (author)This work is intended to provide a better understanding about the properties and roles of the reaction rim in an alkali-silica reaction. A simplified calcium-alkali-silicate system was created to simulate the multiple interactions among reactive silica, alkaline solution and portlandite near the aggregate surface during the formation and...journal article 2016