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Vergara Barrios, P.P. (author), Giraldo, Juan S. (author), Salazar, Mauricio (author), Panda, Nanda Kishor (author), Nguyen, Phuong H. (author)A photovoltaic (PV)-rich low-voltage (LV) distribution network poses a limit on the export power of PVs due to the voltage magnitude constraints. By defining a customer export limit, switching off the PV inverters can be avoided, and thus reducing power curtailment. Based on this, this paper proposes a mixed-integer nonlinear programming (MINLP)...journal article 2023
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Abdelhakim, Ahmed (author), Soeiro, Thiago B. (author), Stecca, M. (author), Canales, Francisco (author)Compact and efficient power converter solutions are seen to be the backbone of future transportation systems in order to cope with the ongoing transition toward greener systems. Such systems usually comprise a main load section, in which one or more propulsion or traction motors are connected, in addition to an auxiliary load, which might...journal article 2023
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Verbist, Flore (author)The electrification of all sectors is essential to achieve carbon neutrality by 2050. In terms of mobility, many nations around the globe envisage a zero-emission fleet resulting in a massive deployment of Electric Vehicles (EV). Nevertheless, this goes hand-in-hand with some challenges related to congestion and voltage problems in power grids...master thesis 2022
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KITSO, MARGARITA (author)The rapidly growing number of renewable energy technologies has started changing the infrastructure of the conventional energy sector, which was based on one-directional power flow. Bidirectional flows are created in the network with the integration of renewable technologies. The electricity network and system operators face many new challenges...master thesis 2022
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Yu, Y. (author), Reihs, David (author), Wagh, Saumitra (author), Shekhar, A. (author), Stahleder, Daniel (author), Chandra Mouli, G.R. (author), Lehfuss, Felix (author), Bauer, P. (author)In this paper, the impact of Electric Vehicle (EV) uncontrolled charging with four levels of EV penetration in overall 21 real low voltage distribution grids in two seasons are analysed. The employed real grid data is provided by distribution system operators from three European countries: Austria, Germany and the Netherlands. At least six...journal article 2022
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Verhoeven, Gijs (author), Vergara Barrios, P.P. (author), Salazar Duque, Edgar Mauricio (author), Kok, Koen (author)To guarantee a successful deployment of a droop-based control strategy to mitigate overvoltage problems caused by solar photovoltaic (PV) generation, Distribution System Operators (DSOs) will need to estimate the amount of active power curtailed by the PV inverters for billing purposes. This paper provides a structural elaboration on the...conference paper 2022
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Yu, Y. (author), Shekhar, A. (author), Chandra Mouli, G.R. (author), Bauer, P. (author)This paper benchmarks the performance of three practical electric vehicle (EV) charging scheduling methods relative to uncontrolled charging (UNC) in low-voltage (LV) distribution grids. The charging methods compared are the voltage droop method (VDM), price-signal-based method (PSM) and average rate method (ARM). Trade-offs associated with the...journal article 2022
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Hopf, Y.M. (author), Ossenkoppele, B.W. (author), Soozande, M. (author), Noothout, E.C. (author), Chang, Z.Y. (author), Chen, C. (author), Vos, H.J. (author), Bosch, J.G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)Intra-cardiac echography (ICE) probes (Fig. 32.2.1) are widely used in electrophysiology for their good procedure guidance and relatively safe application. ASICs are increasingly employed in these miniature probes to enhance signal quality and reduce the number of connections needed in mm-diameter catheters [1]-[5]. 3D visualization in real...conference paper 2022
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van Hasselt, Diederik (author)This research describes a generic step-by-step approach that can be used to depict energy transition-enhancing overvoltage mitigation strategies that fit the local context of a neighbourhood. Although high PV induced low-voltage grid overvoltage mitigation has been studied extensively, this research adds onto existing literature in three ways....master thesis 2021
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Verkou, M.H. (author), Ahmad, Z. (author), Ziar, H. (author), Isabella, O. (author), Zeman, M. (author)Urban areas rely on the wide implementation of X-Integrated Photovoltaic (X-IPV) systems to provide green electricity for the sustainable electrification. In this research, a modelling framework to accurately predicting their output energy yield and asses their impact on the low voltage distribution grid has been developed. This tool can compute...conference paper 2021
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Norbu, Sonam (author), Couraud, Benoit (author), Robu, Valentin (author), Andoni, Merlinda (author), Flynn, David (author)The trend of decentralization of energy services has given rise to community energy systems. These energy communities aim to maximize the self-consumption of local renewable energy generated and stored in assets that are typically connected to low-voltage (LV) distribution networks. Energy community schemes often involve jointly owned assets...journal article 2021
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Echeverry, Jesse (author)Roughly 840 million people, predominately from rural communities in sub-Sahara Africa, still lack access to electricity. The direct current (DC) microgrid is an emerging grid infrastructure that meshes efficiently with DC based technology such as photovoltaics, batteries, consumer electronics, and electric vehicles. This characteristic of DC...master thesis 2020
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Sapountzoglou, Nikolaos (author), Lago, Jesus (author), Raison, Bertrand (author)In this paper, a gradient boosting tree model is proposed to detect, identify and localize single-phase-to-ground and three-phase faults in low voltage (LV) smart distribution grids. The proposed method is based on gradient boosting trees and considers branch-independent input features to be generalizable and applicable to different grid...journal article 2020
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Sapountzoglou, Nikolaos (author), Lago, Jesus (author), De Schutter, B.H.K. (author), Raison, Bertrand (author)Power outages in electrical grids can have very negative economic and societal impacts rendering fault diagnosis paramount to their secure and reliable operation. In this paper, deep neural networks are proposed for fault detection and location in low-voltage smart distribution grids. Due to its key properties, the proposed method solves some...journal article 2020
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van der Blij, N.H. (author), Purgat, P. (author), Soeiro, Thiago B. (author), Ramirez Elizondo, L.M. (author), Spaan, M.T.J. (author), Bauer, P. (author)Since the voltages and currents in dc grids do not have a natural zero-crossing, the protection of these grids is more challenging than the protection of conventional ac grids. Literature presents several unit and non-unit protection schemes that rely on communication, or knowledge about the system's topology and parameters in order to...journal article 2020
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Boricic, Aleksandar (author), Rueda, José L. (author), Popov, M. (author)Renewable energy sources (RES) penetrate power grids at all voltage levels. A large number of RES units are connected to medium-voltage (MV) and low-voltage (LV) levels resulting in a significant share of overall generation. Therefore, the dynamic behavior of such distribution grids should be thoroughly examined. The goal of this paper is to...conference paper 2020
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Bernards, Raoul (author), van Westering, W.H.P. (author), Morren, Johan (author), Slootweg, Han (author)The energy transition poses a challenge for the electricity distribution network design as new energy technologies cause increasing and uncertain network loads. Traditional static load models cannot cope with the stochastic nature of this new technology adoption. Furthermore, traditional nonlinear power methods have difficulty evaluating very...journal article 2020
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Rout, S. (author), Babayan-Mashhadi, Samaneh (author), Serdijn, W.A. (author)Low-voltage and low-power front-end design is required for the safe and long-term monitoring of cardiac signals. To address the low-voltage challenge, this paper presents a subthreshold source-coupled logic (STSCL) based time-domain comparator designed in 180 nm CMOS process technology. At a low supply voltage of 0.8 V, the STSCL time-domain...conference paper 2019
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Parag, Anirudh Kumar (author)This work focuses on addressing the fundamental limitation on the minimum cold start-up voltage that could be harvested from a thermoelectric element (TEG) for human-body wearable applications. For ultra-low DC voltages, the challenge translates to generating a timed-signal to amplify it up to a value that could be used to drive, say, a boost...master thesis 2019
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van Wietmarschen, Luc (author)This work proposes a new charge pump design suitable for energy harvesting on small human wearable devices. By using only one system for both cold start and high efficiency harvesting, the required silicon area is heavily reduced. The most fitting energy transducer is determined to be a photovoltaic cell, based on aspects of voltage, power and...master thesis 2019