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Bentert, Matthias (author), Schestag, J. (author), Sommer, Frank (author)We study a generalization of the classic Spanning Tree problem that allows for a non-uniform failure model. More precisely, edges are either safe or unsafe and we assume that failures only affect unsafe edges. In Unweighted Flexible Graph Connectivity we are given an undirected graph G = (V,E) in which the edge set E is partitioned into a set...conference paper 2023
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Chrysostomou, D. (author), Rueda, José L. (author), Cremer, Jochen (author)Power electronic interfaced devices progressively enable the increasing provision of flexible operational actions in distribution networks. The feasible flexibility these devices can effectively provide requires estimation and quantification so the network operators can plan operations close to real- time. Existing approaches estimating the...conference paper 2023
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Verbist, Flore (author), Panda, Nanda Kishor (author), Vergara Barrios, P.P. (author), Palensky, P. (author)With a growing share of electric vehicles (EVs) in our distribution grids, the need for smart charging becomes indispensable to minimise grid reinforcement. To circumvent the associated capacity limitations, this paper evaluates the effectiveness of different levels of network constraints and different dynamic tariffs, including a dynamic...conference paper 2023
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Li, L. (author), Bruninx, K. (author), Tindemans, Simon H. (author)This paper proposes a multi-level segmented tariff to encourage consumers to provide demand response using a battery. The aim of the tariff is to (i) properly reflect consumers’ contribution to the distribution grid cost while ensuring cost recovery for the distribution network operator and (ii) to provide consumers with a financial incentive to...conference paper 2023
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Schreier, S. (author), Jacobi, G. (author)For Offshore Floating Photovoltaics (OFPV) applications, thin-film PV panels on lightweight floating support structures gain increasing scientific and commercial interest. Over the past years, several different concepts of thin-film OFPV have been proposed, with the common denominator of floating mattress or blanket-like support structures...conference paper 2022
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Kandoi, Ayushi (author), Raftopoulou, M. (author), Litjens, R. (author)In a 5G Radio Access Network (RAN), different features are offered as solutions to serve traffic with diverse characteristics and requirements, including flexible numerology, (non-)pre-emptive mini-slot based scheduling and network slicing. In this paper, we present an extensive simulation-based assessment of the relative merit of these distinct...conference paper 2022
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Sakis Meliopoulos, A.P. (author), Papic, Milorad (author), Tindemans, Simon H. (author), Ekisheva, Svetlana (author), Yue, Meng (author), Logan, Douglas M. (author)Composite Power System Reliability is defined as the computational procedure that quantifies the probability that the power system will perform the function of delivering electric power to customers adequately, on a continuous basis and with an acceptable quality. This definition leaves many details undefined and exemplifies the ambiguity in...conference paper 2022
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Scheder-Bieschin (Aldinger), Lotte (author), Spiekermann, Kerstin (author), Popescu, M.A. (author), Bodea, Serban (author), Van Mele, Tom (author), Block, Philippe (author)Facing the challenges of our environmental crisis, the AEC sector must significantly lower its carbon footprint and use of first-use resources. A specific target is the reduction of the amount of concrete used. Funicular structures that base their strength on their structurally-informed geometry allow for material efficiency. However, a...conference paper 2022
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Panda, Nanda Kishor (author), Paterakis, Nikolaos G. (author)Demand-side management (DSM) is an effective way to strengthen the present power system's reliability and security with increasing penetration of renewable energy generations. With the fusion of information technology, present-day loads are getting smarter with their ability to modulate the power and control their switching operations in...conference paper 2021
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Ökmen, Ö. (author), Bosch-Rekveldt, M.G.C. (author), Bakker, H.L.M. (author)Scheduling of a construction project using an activity network can be done using the Critical Path Method (CPM). CPM scheduling, since it was first developed in the USA in 1950’s, has been widely applied in various sectors including the construction sector. CPM, however, is incapable of reflecting the influence of uncertainty on schedules and...conference paper 2021
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Ramkumar, S. (author), Abdelghany, H.A.M.F. (author), Tindemans, Simon H. (author)Increasing participation of prosumers in the electricity grid calls for efficient operational strategies for utilizing the flexibility offered by Distributed Energy Resources (DER) to match supply and demand. This paper investigates the coordination performance of a recently proposed coordination scheme for deferrable loads: Forecast Mediated...conference paper 2021
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van Ginkel, H.J. (author), Romijn, J. (author), Vollebregt, S. (author), Zhang, Kouchi (author)The growing diversity in the used materials in semiconductor packaging provides challenges for achieving good interconnection. Particularly the very soft substrates, such as paper and polymers, and very hard, such as silicon carbide, offer unique challenges to wire-bonding or formation of vertical interconnects. Complementary technologies are...conference paper 2021
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Trumic, Maja (author), Della Santina, C. (author), Jovanovic, Kosta (author), Fagiolini, Adriano (author)Despite having proven successful in generating precise motions under dynamic conditions in highly deformable soft-bodied robots, model based techniques are also prone to robustness issues connected to the intrinsic uncertain nature of the dynamics of these systems. This letter aims at tackling this challenge, by extending the augmented rigid...conference paper 2021
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Della Santina, C. (author), Albu-Schaeffer, Alin (author)Nonlinear modes are a well investigated concept in dynamical systems theory, extending the celebrated modal analysis of linear mechanical systems to nonlinear ones. The present work moves a first step in the direction of combining control theory and nonlinear modal analysis towards the implementation of hyper-efficient oscillatory behaviors...conference paper 2021
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Vergara Barrios, P.P. (author), Subramanian, Arun (author), Van Der Veen, Aliene (author), Kok, Koen (author)In this paper, a co-simulation framework is presented to assess the impact on the distribution network of provision of support services (i.e. voltage support) by smart residential users. Such users are capable of providing flexibility by increasing/decreasing generation/consumption controlling the operation of an available set of flexible...conference paper 2021
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Ökmen, Ö. (author), Bosch-Rekveldt, M.G.C. (author), Bakker, H.L.M. (author)Scheduling of a construction project can be done by using the Critical Path Method (CPM) in case the project is composed of interrelated activities that can be combined through a network. Given uncertainties nowadays and the related need for project schedule adaptations, the question is raised whether and how “traditional” CPM based schedules...conference paper 2020
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Limodio, G. (author), Bartesaghi, Davide (author), Hietkamp, Maurice (author), Rajagopal, D. (author), Nawaratne, Sajith (author), Hamers, Edward (author), Smets, A.H.M. (author)In this work we focus on texturing Al substrate in order to employ the modulated surface texturing approach for thin-film, flexible, micromorph solar cells. We deployed two different methods to induce micro-craters in Al foil, i) bare Al etching by KOH and ii) AZO sacrificial layer etched in KOH. After modelling the etching kinetics of KOH on...conference paper 2020
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Okur, Ö. (author), Heijnen, P.W. (author), Lukszo, Z. (author)Aggregators are considered essential to obtain flexibility from small residential and service sector consumers. They can implement business models by trading flexibility from their consumers' assets in various electricity markets. The aim of this paper is to identify challenges faced by aggregators with different roles, while implementing...conference paper 2020
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Grunewald, S. (author), Schipper, H.R. (author)The transition period between the mixing of concrete and the begin of setting increasingly receives attention, as special production processes can be developed with tailor-made fresh state characteristics. In this publication the two processes of 3D Concrete Printing (3DCP) and the production with the Flexible Mould Process (FMP) are...conference paper 2020
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Liu, Pan (author), Li, J. (author), van Zeijl, H.W. (author), Zhang, Kouchi (author)A polymer-based wafer level integration technology suitable for miniaturized and multi-functional systems integration was developed and demonstrated in this work. Wafer scale flexible interconnects were firstly fabricated on one wafer, and then transferred to another wafer. Such transfer process involved wafer bonding and application of...conference paper 2020