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Robers, E.W.J. (author), Molenaar, B.A.M. (author), Smit, W. (author), Bech, L.P. (author), Bouman, C. (author)
The invention relates to an electric charger for an accumulator or a battery or the like, which is adapted for rapid charging during an on-period and comprises for this purpose control means for starting and ending the on-period. The charger is provided with a circuit for converting a supply voltage to a charging current for the battery, and...
patent 2009
document
Bajracharya, G. (author), Koltunowicz, T. (author), Negenborn, R.R. (author), Papp, Z. (author), Djairam, D. (author), De Schutter, B. (author), Smit, J.J. (author)
In this paper, a model predictive framework is used to optimize the operation and maintenance actions of power system equipment based on the predicted health sate of this equipment. In particular, this framework is used to predict the health state of transformers based on their usage. The health state of a transformer is hereby given by the hot...
report 2009
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Bajracharya, G. (author), Koltunowicz, T. (author), Negenborn, R.R. (author), Papp, Z. (author), Djairam, D. (author), De Schutter, B. (author), Smit, J.J. (author)
In this paper, a model-predictive control based framework is proposed for modeling and optimization of the health state of power system equipment. In the framework, a predictive health model is proposed that predicts the health state of the equipment based on its usage and maintenance actions. Based on the health state, the failure rate of the...
conference paper 2009
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Vlugt, T.J.H. (author), Van der Eerden, J.P.J.M. (author), Dijkstra, M. (author), Smit, B. (author), Frenkel, D. (author)
Statistical Thermodynamics and Molecular Simulation aim at describing the properties of systems that consist of many individual particles (atoms, molecules). Although the properties of the complete system follow directly from the properties and interactions of the individual particles, usually these properties cannot be calculated directly by...
book 2009
document
Smit, R. (author)
Dit deelrapport Planvorming gaat in op de voorbereiding op grootschalige overstromingen. Het beschrijft hoe de planvorming in Nederland kan worden ondersteund en gestructureerd en hoe de afstemming tussen de betrokken bestuurlijke niveaus kan worden zeker gesteld. Het rapport ‘‘Capaciteitenanalyse voor de taak1 ‘grootschalige evacuatie’’ waarin...
report 2009
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Cichecki, P. (author), Jongen, R.A. (author), Gulski, E. (author), Smit, J.J. (author), Quak, B. (author), Petzold, F. (author), De Vries, F. (author)
journal article 2008
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Gulski, E. (author), Cichecki, P. (author), Wester, F. (author), Smit, J.J. (author), Bodega, R. (author), Hermans, T.J.W.H. (author), Seitz, P.P. (author), Quak, B. (author), De Vries, F. (author)
In addition to after-laying of new-installed high voltage (HV) power cables the use of on-site non-destructive on-site testing and diagnosis of service aged power cables is becoming an important issue to determine the actual condition of the cable systems and to determine the future performances. In this paper based on field experience an...
journal article 2008
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Van der Hoeven, F.D. (author), Van Schaick, J. (author), Van der Spek, S.C. (author), Smit, M.G.J. (author)
Tracking technologies such as GPS, mobile phone tracking, video and RFID monitoring are rapidly becoming part of daily life. Technological progress offers huge possibilities for studying human activity patterns in time and space in new ways. Delft University of Technology (TU Delft) held an international expert meeting in early 2007 to...
book 2008
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Van der Hoeven, F.D. (author), Van der Spek, S.C. (author), Smit, M.G.J. (author)
Pedestrian mobility and the regeneration of the European city centre. Cities can be chaotic and confusing places at the best of times – even for local people! Spatial Metro, a project largely funded by the EU, aims to make city visits more enjoyable for pedestrians by making cities easier to navigate, easier to walk around and easier to...
book 2008
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Smit, A.L. (author)
master thesis 2008
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Smit, A.L. (author)
master thesis 2008
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Morshuis, P.H.F. (author), Bodega, R. (author), Fabiani, D. (author), Montanari, G.C. (author), Dissado, L.A. (author), Smit, J.J. (author)
Interfaces between dielectrics are considered one of the weakest parts of an insulation system but their behavior under electrical stress is not yet completely understood. In particular, when a dc voltage is applied, the electric field distribution at the interface is quite difficult to predict. This is mainly due to the accumulation of internal...
conference paper 2007
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Gulski, E. (author), Meijer, S. (author), Cichecki, P. (author), Smit, J.J. (author), Seitz, P.P. (author), Petzold, F. (author), De Vries, F. (author)
conference paper 2007
document
Morshuis, P.H.F. (author), Bodega, R. (author), Fabiani, D. (author), Montanari, G.C. (author), Dissado, L.A. (author), Smit, J.J. (author)
A load current in dc high voltage cables results in a temperature drop across the insulation and hence a radial distribution of the insulation conductivity is found. Direct consequence is an accumulation of space charge in the bulk of the nsulation, that may significantly affect its reliability. This phenomenon was modeled in terms of the...
conference paper 2007
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Smit, A.L. (author)
report 2007
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Smit, A.L. (author)
report 2007
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Smit, A.L. (author)
report 2007
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Smit, A.L. (author)
report 2007
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Smit, A.L. (author)
report 2007
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Den Uijl, S. (author), Bouman, C. (author), Smit, W. (author)
The invention relates to a rechargeable power supply suitable to be used in a battery-operated device comprising at least one supercapacitor and at least a first and a second DC-DC converter connected in series, wherein the supercapacitor is connectable to an entry of the first DC-DC converter and the device is connectable to an exit of the...
patent 2006
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