Concept

Câble électrique à haute tension

Publications associées (149)

DC Breakdown in gases for complex geometries from high vacuum to atmospheric pressure

This thesis presents an experimental investigation and a numerical simulation of breakdown in a ring assembly. Previous works are mostly limited to breakdown in simple geometries such as parallel plates or pin-to-plate. Here we discuss the effect of more c ...

EPFL2013

High current superconductors for DEMO

Pierluigi Bruzzone, Kamil Sedlák, Boris Stepanov

In the assumption that DEMO will be an inductively driven tokamak, the number of load cycles will be in the range of several hundred thousands. The requirements for a new generation of Nb3Sn based high current conductors for DEMO are drafted starting from ...

Elsevier Science Sa2013

Harnessing the open-circuit voltage via a new series of Ru(II) sensitizers bearing (iso-)quinolinyl pyrazolate ancillaries

Michael Graetzel, Mohammad Khaja Nazeeruddin, Kuan-Lin Wu

A novel class of Ru(II) sensitizers (TFRS-51-TFRS-54) with a 4,40'-dicarboxy-2,2'-bipyridine anchoring ligand and two trans-oriented isoquinolinyl (or quinolinyl) pyrazolate ancillaries were designed, characterized and used to fabricate dye sensitized sola ...

Royal Society of Chemistry2013

Thermally Enhanced Cable Insulation for the Nb-Ti High Luminosity LHC Inner Triplet Model

Pier Paolo Granieri, Davide Tommasini

A new concept of polyimide electrical insulation for superconducting cables of accelerator magnets was developed in the last years. Its enhanced He II permeability allows a significant improvement of the heat extraction from the coil. This cable insulation ...

Ieee-Inst Electrical Electronics Engineers Inc2012

Modular DC/DC Converter for DC Distribution and Collection Networks

Stephan Kenzelmann

A major change in the electrical transmission and distribution system is taking place in Europe at the moment. The shift from a centralised energy production to a distributed generation profoundly changes the behaviour of the grid. Environmental or social ...

EPFL2012

Piezoelectric Actuators Characterization

Pierre-André Farine, Alexis Boegli, Christian Robert, Patrick Stadelmann

This paper describes a system to drive piezoelectric actuators over more than one decade of voltages and one octave of frequencies, in order to perform high-speed complex impedance characterization at a user chosen voltage excitation level. This characteri ...

Ieee Computer Soc2012

Examination of Japanese Mass-Produced Nb3Sn Conductors for ITER Toroidal Field Coils

Pierluigi Bruzzone, Boris Stepanov

The performances of six Nb3Sn conductors for the ITER Toroidal Field coils were tested. Four of them showed similar degradation rates of their current sharing temperatures T-cs over 1,000 electromagnetic cycles. By contrast, two of them showed sharp T-cs d ...

IEEE-Inst Electrical Electronics Engineers Inc2012

Multilevel Modular DC/DC Converter for Regenerative Braking Using Supercapacitors

Alfred Rufer, Daniel Montesinos Miracle

Regenerative braking is presented in many electric traction applications such as electric and hybrid vehicles, lifts and railway. The regenerated energy can be stored for future use, increasing the efficiency of the system. This paper outlines the benefits ...

2012

Experimental Characterization of LLC Resonant DC/DC Converter for Medium Voltage Applications

Drazen Dujic, Akos Mester, Toufann Chaudhuri

Medium voltage (MV) power electronic transformers (PETs) are nowadays considered, for various industrial applications, as a viable replacement for bulky line-frequency operated transformers. In MV applications modularity in the converter design plays a ver ...

2011

Transverse heat transfer coefficient in the dual channel ITER TF CICCs Part I: Analysis of steady state temperature profiles resulting from annular heating

Two ITER IF dual channel Cable-in-Conduit Conductors (CICCs) have been tested in the SULTAN test facility. The samples were heated either by foil heaters mounted on the outside of the conductor jacket or by induced AC losses. The steady-state temperature r ...

2011

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