Design of Power Supplies for the Pulsed High Magnetic Field Facility at HUST

Ding, Hongfa; Ding, Tonghai; Jiang, Chengxi; Xu, Yun; Xiao, Houxiu; Li, Liang; Duan, Xianzhong; Pan, Yuan

doi:10.1007/s10909-009-0135-1

Cited by 7 publications

(4 citation statements)

References 2 publications

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“…In the 1990s high powered telecommunication satellites began using nickel metal hydroxide (NiMH) however this has shifted to lithium-ion (Li-ion) since the early 2000s [4][11][15] [38]. As shown above, the trend towards lithium power storage technology is mirrored in HMF researchers increased use of capacitor power supplies for multicoil HEPS systems [17][18] [54][63] [64]. A number of research grade chemistry [6] [45] and electrode options [32] are being investigated to improve existing capabilities however no transformationally new power storage technology has commercialised successfully since Lithium-ion.…”

Section: High Energy Pulsed Solenoidsmentioning

confidence: 99%

“…Magnet designers frequently trial improvements on 0.5m to 2m test coils [14][41] [63] and a review of papers on small bore coils [8][12][13] [40] shows that high field pulses are achievable in a small package. The evolution of lithium capacitor systems is the other key advancement that many facilities [17] have now integrated. Large lithium capacitor banks allow HMF facilities to independently power multicoil designs [21] to achieve peak fields and operate multiple magnets with minimal downtime [9][64] or grid disruption [19].…”

Section: High Energy Pulsed Solenoidsmentioning

confidence: 99%

“…The coil radii and length characteristics determine the Fabry factors, classifying the proposed solenoid as a thin walled solenoid. The Fabry Factors ( 15) and ( 16) are substituted into (12) to equate the self-inductance calculations in (17) then find the difference. Removing the yokes influence µ 𝑟𝑠 to focus on the coils of the solenoid alone gives the following equivalence:…”

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confidence: 99%

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Concept analysis of a distributed thrust system, a novel inductive propulsion method using high energy pulse solenoids in satellite swarms for reusable interorbital freight transport

Wegener¹

2022

Preprint

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To date only single vehicle thrust designs have been considered for propulsion in space, however there is no limitation preventing multivehicle distributed thrust application designs if a rigid structure can be constructed electromagnetically. By considering the regularity of planetary orbits and distance between orbital paths, a location in space can be targeted for next orbit arrival of a shipping container propelled on an intercepting vector that is a result of inductive propulsion vector combination. This concept is achieved with Nb3Sn high energy pulse solenoids that enable a square pyramidal swarm of satellites to decompose the intercepting orbital transfer vector and propel a 20 tonne steel shipping container towards a destination swarm. This paper is a thought experiment with first pass mechanical analysis that establishes a validity algorithm then concludes that the proposed yoked solenoid design is fit for purpose. Two factors are noted as key variances that must be investigated in further research with numerical modelling tools before the proposed design can be considered fully functional.

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Section: High Energy Pulsed Solenoidsmentioning

confidence: 99%

Section: High Energy Pulsed Solenoidsmentioning

confidence: 99%

mentioning

confidence: 99%

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Concept analysis of a distributed thrust system, a novel inductive propulsion method using high energy pulse solenoids in satellite swarms for reusable interorbital freight transport

Wegener¹

2022

Preprint

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“…In our initial layout, the 12-pulse converter was designed to provide a no-load voltage of 4.6 kV and a full-load voltage of 3.4 kV at the rated current of 20 kA for a 2 second pulse once every hour [8]. The preliminary magnet designs and digital simulations indicated that this design was not adequate for optimal use of the generator capacity.…”

Section: A Basic Considerationsmentioning

confidence: 99%

Design of a 135 MW Power Supply for a 50 T Pulsed Magnet

Ding

Liu

et al. 2012

IEEE Trans. Appl. Supercond.

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At the Wuhan National High Magnetic Field Center (WHMFC) a 50 T/100 ms flat-top long-pulse magnet consisting of two coaxially nested coils is designed. The power and energy to operate the magnet is provided by a 100 MVA/185 MJ inertial energy storage motor-generator set. To accommodate the needs of this and future magnets, two 67.5 MW power supply modules based on 12-pulse converters are designed to convert the ac-power produced by the generator into controlled dc-power. The modules can operate independently as well as in parallel or in series. Each module consists of a combined input disconnect/grounding switch, two rectifier transformers, two parallel-connected 6-pulse rectifiers, a crowbar circuit, and a reversing switch. Two different transformer tap settings allow the module to provide no-load voltages of 3.2 kV and 2.7 kV and full-load voltages of 2.7 kV and 2.25 kV at the rated current of 25 kA for a 2 second pulse once every half hour. All components of the power supply modules are now under construction, with complete delivery and installation expected in early 2012. The design of the power supply components is described in detail. Digital simulation results of the power supply driving the 50 T/100 ms magnet are presented.Index Terms-Flat top, high magnetic field, pulsed generator, pulse rectifier.

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Test and Operation of the WHMFC 12.6 MJ Capacitor Bank Power Supply System

Ding

Jiang

et al. 2012

J Low Temp Phys

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Design of Power Supplies for the Pulsed High Magnetic Field Facility at HUST

Cited by 7 publications

References 2 publications

Concept analysis of a distributed thrust system, a novel inductive propulsion method using high energy pulse solenoids in satellite swarms for reusable interorbital freight transport

Concept analysis of a distributed thrust system, a novel inductive propulsion method using high energy pulse solenoids in satellite swarms for reusable interorbital freight transport

Design of a 135 MW Power Supply for a 50 T Pulsed Magnet

Test and Operation of the WHMFC 12.6 MJ Capacitor Bank Power Supply System

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