Design of a 800 kJ HTS SMES

Tixador, Pascal; Bellin, B.; Deleglise, M.; Vallier, J.C.; Bruzek, Christian-Éric; Pavard, S.; Saugrain, J.M

doi:10.1109/tasc.2005.849331

Cited by 48 publications

(12 citation statements)

References 7 publications

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“…Since 2004, a program for the development of SMES has been led at Grenoble CNRS [3] in order to consider HTS SMES as power source to supply electromagnetic launchers. An electromagnetic launcher, commonly called "railgun", is made of two parallel conductive rails, with a projectile establishing a sliding contact between them.…”

Section: Intended Applicationmentioning

confidence: 99%

“…The term "XRAM" generator comes from the term "Marx" generator spelled backwards since the XRAM generator principle consists in charging several inductances in series and then discharging them in parallel, thus multiplying the output current by the number of stages whereas the Marx generator principle consists in charging several capacitors in parallel and then discharging them in series, thus multiplying the output voltage. -If we consider cylindrical cryostats, the solenoid's cryostat has an inner volume of 32 dm 3 and the toroid's one a volume of 94 dm 3 . The solenoid is therefore more compact.…”

Section: Comparison Between Torus and Solenoidmentioning

confidence: 99%

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Superconducting magnetic energy storage and superconducting self-supplied electromagnetic launcher

Cicéron

Badel

Tixador

2017

Eur. Phys. J. Appl. Phys.

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Abstract. Superconductors can be used to build energy storage systems called Superconducting Magnetic Energy Storage (SMES), which are promising as inductive pulse power source and suitable for powering electromagnetic launchers. The second generation of high critical temperature superconductors is called coated conductors or REBCO (Rare Earth Barium Copper Oxide) tapes. Their current carrying capability in high magnetic field and their thermal stability are expanding the SMES application field. The BOSSE (Bobine Supraconductrice pour le Stockage d'Energie) project aims to develop and to master the use of these superconducting tapes through two prototypes. The first one is a SMES with high energy density. Thanks to the performances of REBCO tapes, the volume energy and specific energy of existing SMES systems can be surpassed. A study has been undertaken to make the best use of the REBCO tapes and to determine the most adapted topology in order to reach our objective, which is to beat the world record of mass energy density for a superconducting coil. This objective is conflicting with the classical strategies of superconducting coil protection. A different protection approach is proposed. The second prototype of the BOSSE project is a small-scale demonstrator of a Superconducting Self-Supplied Electromagnetic Launcher (S3EL), in which a SMES is integrated around the launcher which benefits from the generated magnetic field to increase the thrust applied to the projectile. The S3EL principle and its design are presented. Motivation SMES principle [1]Superconductors have the property to lose their electrical resistivity when they are cooled under a critical temperature T C . Even if energy dissipation occurs in a superconductor submitted to variable electrical current or magnetic induction (B), there is no energy dissipation in a steady state. If a superconducting winding is supplied, then short-circuited current is not dissipated by Joule effect and magnetic energy is conserved almost indefinitely. This is the principle of inductive storage with superconductors, generally called SMES (Superconducting Magnetic Energy Storage).The stored energy E mag can be expressed as a function of inductance L and current I or as the integral over space of the product of magnetic field H by induction B, following (1):Once the SMES has been charged and short-circuited, the energy is available and can be used by opening the short circuit and connecting the SMES to a load. It can be connected to the load either directly as in the case of direct supply of an electromagnetic launcher, or through a voltage adaptation system if the discharge has to be controlled. SMES have low energy density compared to batteries, but high power densities. Furthermore, they can have high cycling yield (97%), with the cycling yield being defined as the recovered energy divided by the energy provided to the SMES, including the energy spent to cool the system, after one cycle. They are direct electricity storage devices such as capacitors. Nevertheless, ...

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Section: Intended Applicationmentioning

confidence: 99%

Section: Comparison Between Torus and Solenoidmentioning

confidence: 99%

Superconducting magnetic energy storage and superconducting self-supplied electromagnetic launcher

Cicéron

Badel

Tixador

2017

Eur. Phys. J. Appl. Phys.

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“…When designing the cooling method of the toroidal-type SMES, the two-stage Gifford-McMahon (GM) refrigerator was considered [9]. The first stage temperature section of the GM refrigerator is responsible for the cooling of current leads and shields, and the second stage temperature section is responsible for the cooling of toroidal-type magnets [10].…”

Section: B Design and Parameters Of The Toroidal-type Magnetmentioning

confidence: 99%

Design and Mechanical Stress Analysis of a Toroidal-Type SMES Magnet

Kim

Park

et al. 2010

IEEE Trans. Appl. Supercond.

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This paper investigates the mechanical stresses of a toroidal-type superconducting magnet (TSM). The TSM is designed by 3D CAD program. The Bi-2223 high temperature superconducting (HTS) wire made by soldering brass on both sides of the superconductor is used for the magnet winding. The TSM consists of 30 double pancake coils (DPC). Single pancake coils (SPC) constituting the double pancake coils are arranged at an angle of 6 from each other based on the central axis of the TSM. The mechanical stresses due to the Lorentz force caused by the operating current are analyzed using FEM. These fundamental data will effectively be applied to design a toroidal-type superconducting magnetic energy storage.Index Terms-FEM analysis, Lorentz force, mechanical stress, toroidal-type superconducting magnet (TSM).

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“…A CCORDING to the successful development of HTS conductors, they are widely used for the applications of various electric power machineries such as motor, generator, SMES (Superconducting Magnetic Energy Storage) and so on [1]- [4]. Especially, ReBCO HTS conductor, which is called coated conductor, is now replacing the Bi2223 HTS conductors due to its S. Lee is with Uiduk University, Gyeongju 801-713, Korea (e-mail: sangjin03@gmail.com).…”

Section: Introductionmentioning

confidence: 99%

De-Lamination Characteristics of Coated Conductor for Conduction Cooled HTS Coil

Jeong

Park

Kim

et al. 2012

IEEE Trans. Appl. Supercond.

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According to the continuous development of coated conductors and compact cryocoolers, research and development efforts for High Temperature Superconducting (HTS) magnets are increasing using conduction cooling method. To increase the cooling efficiency and thermal stability of the HTS magnet, the coated conductor is wound by wet-winding or epoxy impregnating in vacuum after dry-winding. Due to the large Lorentz force and thermal contraction, stress analysis of the composite material, which is composed of HTS conductor, insulation layer and epoxy layer, is necessary to assure the mechanical stability of the HTS magnets.Mechanical strength for a/b axis, which is parallel to the conductor surface, is usually strong enough to endure the large tensile stress due to the tough substrate material. However, c-axis strength, which is perpendicular to the conductor surface, is not strong enough to ensure the large Lorentz force. The de-lamination of the multi-layered HTS tape in a coil structure can occur and the results were previously reported. Therefore, the test data for allowable c-axis strength is necessary to design the mechanical stability of the HTS coil. This paper describes the experimental results for the c-axis tensile strength of various coated conductors. The results show the wide divergence of the c-axis tension force from 18 MPa to 53 MPa. Through the FEM analysis for multi-layered structure of the HTS tape, concept design for HTS tape of enhanced c-axis strength is suggested.

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Design of a 800 kJ HTS SMES

Cited by 48 publications

References 7 publications

Superconducting magnetic energy storage and superconducting self-supplied electromagnetic launcher

Superconducting magnetic energy storage and superconducting self-supplied electromagnetic launcher

Design and Mechanical Stress Analysis of a Toroidal-Type SMES Magnet

De-Lamination Characteristics of Coated Conductor for Conduction Cooled HTS Coil

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