2021
DOI: 10.1007/s42835-021-00852-z
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A Pole Pair Segment of Oil-cooling Air-Core Stator for a 2 MW Direct-Drive High Temperature Superconducting Wind Power Generator

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Cited by 10 publications
(5 citation statements)
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“…An off-shelf cooling system is used to easily cool this material [17]. The machine armature is designed in such a way that the density of magnetic flux in the stator is maximized, allowing the line voltage to remain constant [17,[30][31][32].…”
Section: Electrical Generators For Wecssmentioning
confidence: 99%
See 1 more Smart Citation
“…An off-shelf cooling system is used to easily cool this material [17]. The machine armature is designed in such a way that the density of magnetic flux in the stator is maximized, allowing the line voltage to remain constant [17,[30][31][32].…”
Section: Electrical Generators For Wecssmentioning
confidence: 99%
“…While the armature windings are wound around the U-shaped iron core on the inner flux-switching armature stator without permanent magnets. In [31], Zhou et al introduced a 2 MW direct drive HTS wind generator by using HTS wires in copper transposed conductor in the stator windings and the rotor field coils. In [32], Xue et al discussed the performance of machines with HTS armature windings which are more sensitive to the parameters of design owing to the interaction between the flux density and the operating current compared with the conventional electrical machines.…”
Section: Recent Trend In Wind Generatorsmentioning
confidence: 99%
“…High-temperature superconducting (HTS) motors [1] combine superconducting technology and motor technology, replacing the copper coil in the traditional motor with an HTS coil and then combining them with low-temperature refrigeration systems to ensure their superconducting state. Compared with the same power and the same speed of the traditional motor, the HTS motor has the advantages of miniaturization, low weight, high power density, etc., and has broad application prospects in the fields of marine electric propulsion [2,3], direct-drive (DD) wind power generation [4,5], and electric aircraft propulsion [6] with strict requirements for power density and bulk density. Since an HTS wire of the same size as a copper wire can carry a current about 100 times higher than that of the copper wire, the excitation coil wound from it can generate a high magnetic field of more than 2 t in the motor, which is the magnetic saturation point of the core material.…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, the stator of the HTS motor generally uses non-magnetic materials, such as glass fiber-reinforced plastic (GFRP), to replace the air gap armature structure of the iron teeth to eliminate the serious magnetic saturation and several times the core loss caused by the air gap magnetic density in the stator core tooth, but compared with the iron core stator, the thermal conductivity of the air core stator is lower, and the heat of the stator coil cannot be effectively conducted out; moreover, the coil is directly placed in the air gap of the HTS motor, and most of the tangential electromagnetic force of the air core stator directly acts on the coil. In addition, due to the large magnetic flux of the HTS magnet through the winding, the eddy current loss of the air gap winding is larger than that of the traditional stator coil [5]. This leads to an increase in the temperature of the air gap armature, and the temperature rise of the air gap armature affects the performance and life of the motor.…”
Section: Introductionmentioning
confidence: 99%
“…With the rapid advancement in permanent magnet materials and high-speed bearing technology, the traditional low-torque-density motor has struggled to keep up with market demand in recent years [1,2]. As a result, new requirements for high power, high-torque-density motor designs have been put forth [3,4]. However, in high-frequency operation, the skin effect and proximity effect increase the winding resistance of the internal magnetic components and generate significant AC losses, which seriously limit the power output and efficiency of the motor [5][6][7].…”
Section: Introductionmentioning
confidence: 99%