Cryocooler cooled HTS current leads for a 1 MJ/1 MW-Class SMES system

Mariani, Manuel; Ariante, M.; Matrone, A.; Petrillo, E.; Quarantiello, R.; Barberis, F.; Martini, L.; Pincella, C.; Canepa, G.; Ferrari, Philippe; Ottonello, L.; Vivaldi, Franco

doi:10.1109/tasc.2002.1018639

Cited by 9 publications

(5 citation statements)

References 6 publications

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“…Conduction-cooled thermalizations maintain the cold ends of these leads at an acceptable temperature (50 K) for the superconducting leads that come below. as the interface must have the highest thermal conductivity possible while isolating from high voltage [15,16]. Moreover, thermalization interfaces withstand considerable stresses due to the differences of thermal expansion between the materials in contact.…”

Section: Resistive Current Leads and Thermalizationsmentioning

confidence: 99%

Design and preliminary tests of a twin coil HTS SMES for pulse power operation

Badel

Tixador

Berger

et al. 2011

Supercond. Sci. Technol.

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The design of a twin coil 2 × 200 kJ-1 MW pulse power high temperature superconductor (HTS) superconducting magnetic energy storage (SMES) demonstrator is presented. Its aim is to test at small scale various possibilities of electromagnetic launcher powering. The foreseen operation modes include high voltage discharge in power capacitors, sequential discharges of identical energies from two coupled coils, and XRAM current multiplication. Special attention was paid to the arrangement of the coils for the energies discharged to be equal. The coils are cooled by conduction from three cryocoolers; the thermal design was optimized in order to maintain the coils around 15 K in spite of the high number of current leads required for XRAM operation (eight). Preliminary tests of the demonstrator are also presented, showing that the thermal and electrical characteristics are in very good agreement with the design objectives.

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Section: Resistive Current Leads and Thermalizationsmentioning

confidence: 99%

Design and preliminary tests of a twin coil HTS SMES for pulse power operation

Badel

Tixador

Berger

et al. 2011

Supercond. Sci. Technol.

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“…In [28], it was reported that six partners from five European countries cooperated within an R&D BRITE EURAM project named SHIFT to develop basic technologies for manufacturing magnets producing high fields operating in the temperature range 20-30 K. One of the potential applications is pulsed magnets for SMES, which is used to smooth the voltage sags and to mitigate flicker. Within the Italian project for the development of 1 MJ/1 MW SMES, the SMES system had 1100 A resistive/HTS current leads conduction-cooled by a closed cycle refrigerator in the temperature range 60-70 K [29]. An HTS SMES was developed by ACCEL Instruments GmbH in cooperation with the German companies AEG SVS GmbH, EUS GmbH, and the utility company E. ON Bayern AG.…”

Section: Introductionmentioning

confidence: 99%

A study of the status and future of superconducting magnetic energy storage in power systems

Xue¹,

Cheng²,

Sutanto³

2006

Supercond. Sci. Technol.

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Superconducting magnetic energy storage (SMES) systems offering flexible, reliable, and fast acting power compensation are applicable to power systems to improve power system stabilities and to advance power qualities. The authors have summarized researches on SMES applications to power systems. Furthermore, various SMES applications to power systems have been described briefly and some crucial schematic diagrams and equations are given. In addition, this study presents valuable suggestions for future studies of SMES applications to power systems. Hence, this paper is helpful for co-researchers who want to know about the status of SMES applications to power systems.

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“…Recently, it seems to be a trend to adopt the liquid helium recondensing process to the superconducting magnet system. For the LHe recondensing type cryostat, optimization for the current lead shape, minimization of the heat load and improvement of thermal connectivity are considered as a key technology [1]. LHe recondensing type 3MJ SMES was already assembled and the performance test is scheduled at the end of this year.…”

Section: Introductionmentioning

confidence: 99%

Design and Characteristic Measurements of Current Lead for 3MJ SMES

Sim

Cho

Bae

et al. 2004

IEEE Trans. Appl. Supercond.

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The design of a superconducting coil and cryostat for 3MJ class SMES was completed in 2002. Before assembling the full system, some important parts were fabricated in order to find out whether their operating properties were fit for our 3MJ SMES or not. The assembling process will be performed in 2003. The 3MJ SMES will be operated at 1000 amps in the cryogenic environment of 4.2 K. So, it is essential to minimize the heat load from room temperature and to optimize its ohmic heating. A bundle of brass sheets with optimized length/area ratio was used for the metal part of the current lead and it is connected to HTS current lead in series. Two GM cryocooler sinks out the heat load and also the ohmic heating of the current lead which is located in vacuum chamber of the cryostat. Cold head of the cryocooler which is extended to the HTS lead with layered OFHC sheets keeps the temperature under the critical temperature of the HTS lead. We performed some experiments to examine the thermal and electrical properties of the current lead. In this paper, the fabrication process and test results of the current lead will be introduced in detail.

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Cryocooler cooled HTS current leads for a 1 MJ/1 MW-Class SMES system

Cited by 9 publications

References 6 publications

Design and preliminary tests of a twin coil HTS SMES for pulse power operation

Design and preliminary tests of a twin coil HTS SMES for pulse power operation

A study of the status and future of superconducting magnetic energy storage in power systems

Design and Characteristic Measurements of Current Lead for 3MJ SMES

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