Comparison Study Between Several Solutions of Superconducting Inductors

Ailam, El Hadj; Benallal, Mohamed Nadjib; Hachama, Mohammed; Lévêque, Jean; Rezzoug, A.

doi:10.1109/tasc.2012.2232913

Cited by 7 publications

(3 citation statements)

References 18 publications

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“…Thrust force F is given by (11). By Newton's second law expressed in (12), the friction coefficient β c can be determined using (13). Its acceleration term dc/dt was calculated using the vehicle position signal, which was measured during vehicle descendent for a certain inclination angle α…”

Section: A Estimation Of the Friction Coefficient Between Vehicle Anmentioning

confidence: 99%

“…Since its discovery in 1983, providing critical temperature improvement and cost decrease, high-temperature superconductor (HTS) technology is building the next stage in linear actuators. These with HTS coils [10], [11] or HTS bulks [12]- [17] are examples of what has been developed. In this paper, a linear propulsion system with YBCO superconducting bulk as a diamagnetic mover is proposed and implemented.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

On Using Meissner Effect to Conceive a New Linear Electromagnetic Launcher by Zero-Field-Cooling YBCO Bulk Superconductors

Branco

Almeida

Dente

2014

IEEE Trans. Ind. Electron.

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A new YBCO superconducting linear propulsion system that uses the Meissner effect for thrust is proposed. A YBCO bulk is used in the vehicle, which is excited synchronous with a magnetic field traveling wave. The propulsion system's model is developed using a magnetic circuit method and the Maxwell stress tensor analysis. The vehicle acceleration and thrust force characteristics previewed from that model are verified and analyzed by practical measurements and a set of essays using the prototype built in our laboratory. Major errors came for thermally activated flux creep and current conduction in the YBCO during its passage through the excitation system. The total magnetic field at the superconductor's surface decreases, reducing thrust force. Despite these secondary effects, achieved results show the potential of this new approach for future electric propulsion systems.

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Section: A Estimation Of the Friction Coefficient Between Vehicle Anmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On Using Meissner Effect to Conceive a New Linear Electromagnetic Launcher by Zero-Field-Cooling YBCO Bulk Superconductors

Branco

Almeida

Dente

2014

IEEE Trans. Ind. Electron.

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“…The association of original topologies and superconducting wires can highly improve the torque density of the electrical motor. In fact, using an HTS wire in the inductor of a 20 MW magnetic flux concentration motor, the volume of this motor becomes five times small in comparison to a conventional one [4]. In [3] and [4] a new kind of motor is designed, realized and tested.…”

Section: Introductionmentioning

confidence: 99%

Comparison study between three kind superconducting motors

Ailam

Hocine

Benallal

2014

2014 Electric Power Quality and Supply Reliability Conference (PQ)

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In this paper, a comparison is made between three superconducting motors. The first one is based on the magnetic flux concentration principle. The second and the third motors have a conventional topology and contain a NbTi wire in the place of copper in the inductor. For the three motors we consider the same active length, the same armature and the same NbTi wire length. The comparison between the three motors is based on the created magnetic flux density in the air-gap. Calculations are carried out using the Monte Carlo Method for the first motor and FEM for the second and the third one.

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The design of magnetic flux concentration superconducting machines

Ailam¹,

Benallal²,

Hocine³

et al. 2014

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)

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International audienceIn this paper we present the design of several topologies of radial and axial superconducting rotating machines. These topologies are based on the magnetic flux concentration principle. The armature of the studied machines is a copper one and the inductor is made of superconducting wire and bulk superconductors. In fact, using the superconducting wire allow a high magnetic flux density. Thanks to bulk superconductors, the flux density is modulated and variable around the air-gap of the machine. Each bulk superconductor is considered as a perfect diamagnetic. Magnetic calculations are carried out using the Monte Carlo Method which has the specificity to be used in limited regions of the studied magnetic area. Due to this property, the calculations time can be seriously decreased

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Comparison Study Between Several Solutions of Superconducting Inductors

Cited by 7 publications

References 18 publications

On Using Meissner Effect to Conceive a New Linear Electromagnetic Launcher by Zero-Field-Cooling YBCO Bulk Superconductors

On Using Meissner Effect to Conceive a New Linear Electromagnetic Launcher by Zero-Field-Cooling YBCO Bulk Superconductors

Comparison study between three kind superconducting motors

The design of magnetic flux concentration superconducting machines

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