34 citations · 210 across the 40 of their papers we have counts for
41 papers
Polyhedral restrictions of feasibility regions in optimal power flow for distribution networks
M. H. M. Christianen, S. van Kempen, M. Vlasiou +1
The optimal power flow (OPF) problem is one of the most fundamental problems in power system operations. The non-linear alternating current (AC) power flow equations that model dif…
Extreme values for the waiting time in large fork-join queues
Dennis Schol, Maria Vlasiou, Bert Zwart
We prove that the scaled maximum steady-state waiting time and the scaled maximum steady-state queue length among -queues in the -server fork-join queue, converge t…
Estimating Risk-Aware Flexibility Areas for EV Charging Pools via Stochastic AC-OPF
Juan S. Giraldo, Nataly Banol Arias, Pedro P. Vergara +3
This paper introduces a stochastic AC-OPF (SOPF) for the flexibility management of electric vehicle (EV) charging pools in distribution networks under uncertainty. The SOPF conside…
Queues on interacting networks
Maria Vlasiou
Interacting networks are different in nature to single networks. The study of queuing processes on interacting networks is underdeveloped. It presents new mathematical challenges a…
Simulation study for the comparison of power flow models for a line distribution network with stochastic load demands
M. H. M. Christianen, M. Vlasiou, B. Zwart
We use simulation to compare different power flow models in the process of charging electric vehicles (EVs) by considering their random arrivals, their stochastic demand for energy…
Maximum waiting time in heavy-tailed fork-join queues
Dennis Schol, Maria Vlasiou, Bert Zwart
In this paper, we study the maximum waiting time in an -server fork-join queue with heavy-tailed services as . The service times are the p…
Tail Asymptotics for the Delay in a Brownian Fork-Join Queue
Dennis Schol, Maria Vlasiou, Bert Zwart
In this paper, we study the tail behavior of as , with i.i.d. Brownian motions and an inde…
Asymptotic analysis of Emden-Fowler type equation with an application to power flow models
M. H. M. Christianen, A. J. E. M. Janssen, M. Vlasiou +1
Emden-Fowler type equations are nonlinear differential equations that appear in many fields such as mathematical physics, astrophysics and chemistry. In this paper, we perform an a…
Comparison of stability regions for a line distribution network with stochastic load demands
M. H. M. Christianen, J. Cruise, A. J. E. M. Janssen +3
We compare stability regions for different power flow models in the process of charging electric vehicles (EVs) by considering their random arrivals, their stochastic demand for en…
Optimization of inventory and capacity in large-scale assembly systems using extreme-value theory
Mirjam S. Meijer, Dennis Schol, Willem van Jaarsveld +2
High-tech systems are typically produced in two stages: 1) Production of components using specialized equipment and staff; 2) System assembly/integration. Component production capa…
A Fluid Model of an Electric Vehicle Charging Network
Angelos Aveklouris, Maria Vlasiou, Bert Zwart
We develop and analyze a measure-valued fluid model keeping track of parking and charging requirements of electric vehicles in a local distribution grid. We show how this model ari…
Large fork-join queues with nearly deterministic arrival and service times
Dennis Schol, Maria Vlasiou, Bert Zwart
In this paper, we study an server fork-join queue with nearly deterministic arrival and service times. Specifically, we present a fluid limit for the maximum queue length as $N…
Complete resource pooling of a load balancing policy for a network of battery swapping stations
Fiona Sloothaak, James R. Cruise, Seva Shneer +2
To reduce carbon emission in the transportation sector, there is currently a steady move taking place to an electrified transportation system. This brings about various issues for…
Bounds and Limit Theorems for a Layered Queueing Model in Electric Vehicle Charging
Angelos Aveklouris, Maria Vlasiou, Bert Zwart
The rise of electric vehicles (EVs) is unstoppable due to factors such as the decreasing cost of batteries and various policy decisions. These vehicles need to be charged and will…
Electric vehicle charging: a queueing approach
Angelos Aveklouris, Yorie Nakahira, Maria Vlasiou +1
The number of electric vehicles (EVs) is expected to increase. As a consequence, more EVs will need charging, potentially causing not only congestion at charging stations, but also…
Speed of convergence to the quasi-stationary distribution for Lévy input fluid queues
Z. Palmowski, M. Vlasiou
In this note we prove that the speed of convergence of the workload of a Lévy-driven queue to the quasi-stationary distribution is of order . We identify also the Laplace tran…
A Stochastic Resource-Sharing Network for Electric Vehicle Charging
Angelos Aveklouris, Maria Vlasiou, Bert Zwart
We consider a distribution grid used to charge electric vehicles such that voltage drops stay bounded. We model this as a class of resource-sharing networks, known as bandwidth-sha…
Heavy-traffic approximations for a layered network with limited resources
Angelos Aveklouris, Maria Vlasiou, Jiheng Zhang +1
Motivated by a web-server model, we present a queueing network consisting of two layers. The first layer incorporates the arrival of customers at a network of two single-server nod…
Marginal queue length approximations for a two-layered network with correlated queues
J. L. Dorsman, O. J. Boxma, M. Vlasiou
We consider an extension of the classical machine-repair model, where we assume that the machines, apart from receiving service from the repairman, also serve queues of products. T…
Insensitivity of Proportional Fairness in Critically Loaded Bandwidth Sharing Networks
Maria Vlasiou, Jiheng Zhang, Bert Zwart
Proportional fairness is a popular service allocation mechanism to describe and analyze the performance of data networks at flow level. Recently, several authors have shown that th…
Corrected phase-type approximations of heavy-tailed queueing models in a Markovian environment
Eleni Vatamidou, Ivo J. B. F. Adan, Maria Vlasiou +1
We develop accurate approximations of the delay distribution of the MArP/G/1 queue that cap- ture the exact tail behavior and provide bounded relative errors. Motivated by statisti…
Corrected phase-type approximations for the workload of the MAP/G/1 queue with heavy-tailed service times
Eleni Vatamidou, Ivo J. B. F. Adan, Maria Vlasiou +1
In many applications, significant correlations between arrivals of load-generating events make the numerical evaluation of the load of a system a challenging problem. Here, we cons…
Corrected phase-type approximations of heavy-tailed queueing models in a Markovian environment
Eleni Vatamidou, Ivo J. B. F. Adan, Maria Vlasiou +1
Significant correlations between arrivals of load-generating events make the numerical evaluation of the workload of a system a challenging problem. In this paper, we construct hig…
Analytic properties of two-carousel systems
Ruben Bossier, Maria Vlasiou, Ivo J. B. F. Adan
We present analytic results for warehouse systems involving pairs of carousels. Specifically, for various picking strategies, we show that the sojourn time of the picker satisfies…