Development of a MW-Class 2G HTS Ship Propulsion Motor

Moon, Heejong; Kim, Yeong-Chun; Park, Heui-Joo; Park, Minwon; Yu, In-Keun

doi:10.1109/tasc.2016.2536660

Cited by 42 publications

(15 citation statements)

References 4 publications

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“…The optimal and most efficient configuration would be to use superconductors in the field and in the armature of the motor. However, with today's technology, most electrical machines that use superconductors do so only in the field winding as it is less technologically complex even though the potential is more limited than using HTS in the rotor and stator [7], [180], [181].…”

Section: High-temperature Superconductors (Hts)mentioning

confidence: 99%

Review of High Power and High Voltage Electric Motors for Single-Aisle Regional Aircraft

et al. 2022

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This paper presents a review of the state of the art in electric propulsion for regional aircraft in the MW range. The implications surrounding the implementation of this technology, such as the need of high-power density or the use of high-voltage at high-altitude, are presented. Along with the challenges, the available technologies to face them are reviewed. Those are, as follows, the emerging new motor topologies for this purpose, the winding technologies, the materials employed for electric motors for aircraft propulsion and the ground-breaking use of high-temperature superconductors (HTS) as a high-power density enabler. Finally, a conclusion is presented gathering the main ideas of the paper.INDEX TERMS Aircraft propulsion, electric motor, high-power, high-temperature superconductor, high-voltage.

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Section: High-temperature Superconductors (Hts)mentioning

confidence: 99%

Review of High Power and High Voltage Electric Motors for Single-Aisle Regional Aircraft

et al. 2022

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“…Because the latent heat of the vaporization of liquid nitrogen is 199.2 J•s −1 , the liquid nitrogen in the cryostat will evaporate within 200 min by boil-off, due to the thermal load. Therefore, for the long-term operation of the HTS field coil, a forced circulation cooling method for the circulation of the refrigerant must be considered in the future [36,37]. Figure 6.…”

Section: Design Of the Hts Field Coil And Cryostatmentioning

confidence: 99%

“…However, as shown in Table 6, it has the advantage that the output can be adjusted by flux control. [35,36] In this section, the performances of the proposed hybrid excitation flux-switching machine (HEFSM) are compared with those of other outer-rotor brushless machines, such as permanent magnet Vernier machine (PMVM), permanent magnet flux-switching machine (PMFSM), and high temperature superconducting Vernier machine (HTSVM) [40,41]. By comparing the performance of the four machines, it is shown that the proposed HEFSM has excellent characteristics in terms of output power density and flux controllability, so it is more suitable for variable-speed rotating machine applications, such as electric propulsion and wind turbines.…”

Section: Transient Motion Analysis Of the Proposed Fsmmentioning

confidence: 99%

A New Outer-Rotor Hybrid-Excited Flux-Switching Machine Employing the HTS Homopolar Topology

et al. 2019

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Currently, studies of flux switching machines are actively underway owing to several advantages of these machines, including their sturdy rotor structure and high output capability. This paper deals with an outer-rotor hybrid-excited flux-switching machine (FSM). The proposed machine embraces a homopolar structure and utilizes permanent magnets (PMs) for field excitation and a high-temperature superconducting (HTS) coil for flux regulation. The stator houses the HTS field coil, PMs, and armature windings. The outer rotor consists solely of an iron core. Thus, the machines are cost effective and can serve as a solution to the design and fabrication complexities of field current supplying and cooling systems. In this paper, the machine performance outcomes are analyzed using the 3D finite element method (FEM), and the validity of the proposed machine is verified.

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“…Currently, HTS magnets hold the world record of 17.9 T of the trapped magnetic field [2]. This distinctive property makes these trapped field magnets suitable candidates for designing compact, lightweight, and energy-efficient electrical machines having outstanding high-power densities [3,4] ranging from high-performance electrical motors [5] to HTS magnetic levitation [6]. Besides their applications in electrical machines, there have been significant advancements in superconducting electronics such as antennae and resonators, as well as active elements such as Josephson junctions and superconducting quantum interference devices (SQUIDS) [7].…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Numerical Characterization of High-Temperature Superconductor Bulks Subjected to Rotating Magnetic Fields

Soomro

Guo

et al. 2022

Energies

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High-temperature superconductor (HTS) bulks have shown very promising potential for industrial applications due to the ability to trap much higher magnetic fields compared to traditional permanent magnets. In rotating electrical machines, the magnetic field is a combination of alternating and rotating fields. On the contrary, all studies on electromagnetic characterization of HTS presented in the literature so far have only focused on alternating AC magnetic fields and alternating AC loss due to the unavailability of robust experimental techniques and analytical models. This paper presents a numerical investigation on the characterization of HTS bulks subjected to rotating magnetic fields showing AC loss, current density distribution in three-dimensional axes, and trapped field analysis. A three-dimensional numerical model has been developed using H-formulation based on finite element analysis. An HTS cubic sample is magnetized and demagnetized with two-dimensional magnetic flux density vectors rotating in circular orientation around the XOY, XOZ, and YOZ planes.

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Development of a MW-Class 2G HTS Ship Propulsion Motor

Cited by 42 publications

References 4 publications

Review of High Power and High Voltage Electric Motors for Single-Aisle Regional Aircraft

Review of High Power and High Voltage Electric Motors for Single-Aisle Regional Aircraft

A New Outer-Rotor Hybrid-Excited Flux-Switching Machine Employing the HTS Homopolar Topology

Three-Dimensional Numerical Characterization of High-Temperature Superconductor Bulks Subjected to Rotating Magnetic Fields

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