Results 21 to 30 of about 8,569,882 (345)
IEEE transactions on applied superconductivity, 2022 Achieving low AC-loss armature windings is a key challenge to enable all-HTS motors. Large AC-loss is induced in the HTS armature windings through interaction with the rotating magnetic field generated by the rotor.
Shuangrong You +5 more
semanticscholar +1 more source
Alternating Current Loss of Superconductors Applied to Superconducting Electrical Machines
Energies, 2021 Superconductor technology has recently attracted increasing attention in power-generation- and electrical-propulsion-related domains, as it provides a solution to the limited power density seen by the core component, electrical machines.
Hongye Zhang +4 more
doaj +1 more source
AC Loss Reduction in HTS Coil Windings Coupled With an Iron Core Using Flux Diverters
IEEE Access, 2023 Iron cores are widely employed in high temperature superconducting (HTS) power devices to enhance the magnetic field and improve the power density. In spite of these benefits, the presence of iron cores leads to a substantial increase in AC loss within ...
Yue Wu +5 more
doaj +1 more source
IEEE Access, 2021 With recent advances in second-generation high temperature superconductors (2G HTS) and cable technologies, various numerical models based on finite-element method (FEM) have been proposed to help interpret measured AC loss and assist cable design. The T-
Yufan Yan, T. Qu, F. Grilli
semanticscholar +1 more source
Effect of Magnetic Properties of Magnetic Composite Tapes on Motor Losses
Energies, 2022 Alternating current (AC) copper losses in motors increase with carrier frequency of the pulse width modulation (PWM) and are further increased by leakage flux of the permanent magnet. Therefore, AC copper losses increase with motor speed.
Ryo Yoshida +9 more
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Journal of Physics Communications, 2021 An asymmetric dependence of the critical current on the direction of an applied magnetic field in HTS coated conductors has a non-trivial influence on the AC loss of coil windings.
Zhe-Nan Jiang +5 more
semanticscholar +1 more source
Analysis of AC Loss Contributions From Different Layers of HTS Tapes Using the A−V Formulation Model
IEEE transactions on applied superconductivity, 2021 This article presents a numerical model based on the definition of the scalar and vector potentials to calculate the ac losses generated in a high-temperature superconductor coated conductor tape by an ac transport current and by an ac external magnetic ...
A. Musso +3 more
semanticscholar +1 more source
Machines, 2022 AC copper loss from stator winding is one of the main losses of the high-speed permanent magnet machines (HSPMMs) and directly affects the performance of the machines.
Guanghui Du +4 more
doaj +1 more source
AC ripple loss analysis of a novel composite energy pipeline
Energy Reports, 2022 A novel composite high-temperature superconducting (HTS) energy pipeline integrated with power cable and liquid hydrogen (LH2) and liquefied natural gas (LNG) is proposed in this paper.
Lina Wang
doaj +1 more source
Comprehensive Analysis of the AC Copper Loss for High Speed PM Machine With Form-Wound Windings
IEEE Access, 2022 The skin effect and proximity effect at high frequencies would greatly increase the AC copper loss of high speed permanent magnet machines (HSPMMs), especially for form-wound windings.
Guanghui Du +5 more
doaj +1 more source