Searched for: department:"Electrical%5C%2BSustainable%5C%2BEnergy"
(1 - 15 of 15)
document
Tsekmes, I.A. (author), Morshuis, P.H.F. (author), Smit, J.J. (author), Kochetov, R. (author)
In this study, epoxy-cubic boron nitride composites are fabricated, and their dielectric response is investigated. They exhibit the same trend as epoxy composites reinforced with other filler types. Thus, at low filler concentrations, they exhibit a lower relative permittivity than neat epoxy. As the fill grade further increases, the relative...
journal article 2015
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Mehairjan, R.P.Y. (author), Zhuang, Q. (author), Djairam, D. (author), Smit, J.J. (author)
The electrical power sector is stimulated to evolve under the pressures of the energy transition, the deregulation of electricity markets and the introduction of intelligent grids. In general, engineers believe that technologies such as monitoring, control and diagnostic devices, can realize this evolvement smoothly. Unfortunately, the...
conference paper 2014
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Zuijderduin, R. (author), Chevtchenko, O. (author), Smit, J.J. (author), Aanhaanen, G. (author), Ross, R. (author)
The electricity grid of the Netherlands is changing. There is a call of society to use more underground cables, less overhead lines (OHL) and to reduce magnetic emissions. At the same time, parts of the future transmission grid need strengthening depending on the electricity demand in the coming decades [1]. Novel high temperature superconductor...
conference paper 2014
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Chevtchenko, O. (author), Zuijderduin, R. (author), Smit, J. (author), Willen, D. (author), Lentge, H. (author), Thidemann, C. (author), Traeholt, C. (author)
Particulars of 6 km long HTS AC power cable for Amsterdam project are: a cable has to fit in an annulus of 160 mm, with only two cooling stations at the cable ends [1]. Application of existing solutions for HTS cables would result in excessively high coolant pressure drop in the cable, possibly affecting public acceptance of the project. In...
journal article 2012
document
Zuijderduin, R. (author), Chevchenko, O. (author), Smit, J.J. (author), Aanhaanen, G. (author), Melnik, I. (author), Geschiere, A. (author)
ue to increasing power demand, the electricity grid of the Netherlands is changing. The future transmission grid will obtain electrical power generated by decentralized renewable sources, together with large scale generation units located at the coastal region. In this way electrical power has to be distributed and transmitted over longer...
journal article 2012
document
Chevtchenko, O. (author), Zuijderduin, R. (author), Smit, J. (author), Willen, D. (author), Lentge, H. (author), Thidemann, C. (author), Traeholt, C. (author), Melnik, I. (author), Geschiere, A. (author)
are: a cable has to fit in an annulus of 160 mm, with two cooling stations at the cable ends only. Existing solutions for HTS cables would lead to excessively high coolant pressure drop in the cable, potentially affecting public acceptance of the project. A way out would be to substantially reduce AC losses from 1 down to about 0.1 W/m per phase...
journal article 2012
document
Zuijderduin, R. (author), Chevtchenko, O. (author), Smit, J.J. (author), Willen, D. (author), Melnik, I. (author), Geschiere, A. (author)
The future electricity grid will be more sustainable and it will have more power transmission and distribution capability with more electrical power added from decentralized sources on distribution level and from wind parks and other large sources on transmission level. More interconnections and more underground transmission and distribution...
journal article 2012
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Zuijderduin, R. (author), Chevtchenko, O. (author), Smit, J.J. (author), Aanhaanen, G. (author), Melnik, I. (author), Geschiere, A. (author)
Due to increasing power demand, the electricity grid of the Netherlands is changing. The future grid must be capable to transmit all the connected power. Power generation will be more decentralized like for instance wind parks connected to the grid. Furthermore, future large scale production units are expected to be installed near coastal...
journal article 2012
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Smit, J.J. (author), Andritsch, T. (author), Chevtchenko, O.A. (author)
Assets in high voltage technology have to meet harsh service conditions over long lifetimes of 40 years or more. Due to environmental concerns, substitution of conventional insulating materials becomes a necessity. Because robustness and sustainability are serious requirements, only few new materials are really breaking through. At present some...
journal article 2012
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Kochetov, R. (author), Korobko, A.V. (author), Andritsch, T. (author), Morshuis, P.H.F. (author), Picken, S.J. (author), Smit, J.J. (author)
In this paper the thermal conductivity of epoxy-based composite materials is analysed. Two and three-phase Lewis–Nielsen models are proposed for fitting the experimental values of the thermal conductivity of epoxy-based polymer composites. Various inorganic nano- and microparticles were used, namely aluminium oxide, aluminium nitride, magnesium...
journal article 2011
document
Chevtchenko, O.A. (author), Smit, J.J. (author), Geschiere, A. (author)
Cryostat for a high-temperature superconducting power cable, comprising concentric tubes, an annular region between said tubes, wherein a multilayer thermal insulation and getter material for supporting high vacuum conditions are provided in said annular region, and wherein the multilayer insulation comprises reflective layers separated by...
patent 2010
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
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 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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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
Searched for: department:"Electrical%5C%2BSustainable%5C%2BEnergy"
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