A single-sided linear synchronous motor with a high temperature superconducting coil as the excitation system

Yen, Fei; Li, J.; Zheng, Shijun; Liu, L.; T., G.; Wang, J. S.; Wang, S. Y.; Liu, Weiqun

doi:10.1088/0953-2048/23/10/105015

Cited by 29 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As observed from one of our previous reports [11], the addition of a silicon steel core and back plate will significantly enhance the generated forces. In the case of multiple poles with silicon steel cores and a back plate, even higher forces are expected since the magnetic flux coming out of an electromagnet will be amplified and directly guided to adjacent poles of opposite polarity.…”

Section: Resultssupporting

confidence: 65%

See 1 more Smart Citation

Performance of a Small-Scale High Temperature Superconducting Linear Synchronous Motor Prototype

Zheng

Lin

et al. 2012

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

Four coils made of YBCO-coated conductor wire were fabricated and connected in series to make up the excitation system of a linear synchronous motor system with a stator made of ordinary copper wire. The electromagnetic forces experienced by the superconducting coils with respect to the stator were studied in the static case. We began with the study of one single coil, followed by two coils connected in series, and finally, four coils in series from which the largest force obtained was of 53.9 N at a gap of 10 mm at 77 K. The critical current, n-value, and inductance were also measured for the coils so that the power dissipation of the field windings can be calculated. This paper also helps us understand whether linear motors with superconducting components are currently economically feasible with present commercially available superconducting wire.

show abstract

Section: Resultssupporting

confidence: 65%

“…5 were linear, as expected from , eq. (1) [11], and their quotient amounts to a thrust-to-normal force ratio of 1.15.…”

Section: Resultsmentioning

confidence: 99%

Performance of a Small-Scale High Temperature Superconducting Linear Synchronous Motor Prototype

Zheng

Lin

et al. 2012

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

show abstract

“…In view of the facts mentioned above and the development on the performance of YBCO coated superconductors, recent works focus on applying the YBCO tapes for field magnet to improve the performance of the linear motors. In 2009, Yen et al proposed a linear synchronous motor (LSM) with traditional copper windings as its primary and coated superconductor coils as secondary [15]. Because of the DC current injected in the coils, the coated superconductor can give full play to its superiority.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical studies of a linear synchronous motor with the secondary made of coated superconductor

Liu

Cai

Gong

et al. 2019

Trans. Electr. Mach. Syst.

View full text Add to dashboard Cite

Thrust tests of a linear synchronous motor (LSM) with its secondary made of coated superconducting coils were conducted via the built prototype over the traditional copper windings. A numerical model of the superconducting LSM was made and the measured data of experiment validate its reliability. The nonlinear resistivity of coated superconductor was electromagnetically modeled by resorting to the power law in conjunction with the constitutive relationship of conductor. Based on the numerical model, we carried out a set of transient studies to make a forecast about the superiority of the proposed high temperature superconducting (HTS) LSM, such as magnetic field distribution and the time evolution of thrust together with the speed in different loads and frequencies. The achieved results clearly confirm that the proposed HTS LSM has the advantages to work as a candidate for developing the high-thrust LSM with a large air gap.

show abstract

“…Most of the literatures about the conventional electric machines are concentrated on the electromagnetic and thermal analyses [16][17][18][19], while for HTS electric machines, the literatures are mainly on the electromagnetic analysis or performance investigation [1,2,11,12], very few on thermal analysis. K. Sato et al presented a nonlinear heat analysis technique, and by using the technique, he studied the temperature field of the 1000 MVA inner rotor superconducting generators [14].…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Temperature Field Calculation and Analysis of an Axial-Radial Flux-Type Permanent Magnet Synchronous Motor

Wen

et al. 2018

Energies

View full text Add to dashboard Cite

This article concentrates on the steady-state thermal characteristics of the Axial-Radial Flux-Type Permanent Magnet Synchronous Motor (ARFTPMSM). Firstly, the three-dimensional mathematical models for electromagnetic calculation and analyses are established, and the machine loss, including the stator loss, armature winding loss, rotor loss, and axial structure loss is calculated by using time-step Finite Element Method (FEM). Then, the loss distribution is assigned as the heat source for the thermal calculation. Secondly, the mathematical model for thermal calculation is also established. The assumptions and the boundary conditions are proposed to simplify the calculation and to improve convergence. Thirdly, the three-dimensional electromagnetic and thermal calculations of the machine, of which the armature winding and axial field winding are developed by using copper wires, are solved, from which the temperature distributions of the machine components are obtained. The experiments are carried out on the prototype with copper wires to validate the accuracy of the established models. Then, the temperature distributions of machine components under different Axial Magnetic Motive Force (AMMF) are investigated. Since the machine is finally developing by using HTS wires, the temperature distributions of machine developed by utilizing High Temperature Superconducting (HTS) wires, are also studied. The temperature distribution differences of the machine developed by using copper wires and HTS wires are drawn. All of these above will provide a helpful reference for the thermal calculation of the ARFTPMSM, as well as the design of the HTS coils and the cryogenic cooling system.

show abstract

A single-sided linear synchronous motor with a high temperature superconducting coil as the excitation system

Cited by 29 publications

References 17 publications

Performance of a Small-Scale High Temperature Superconducting Linear Synchronous Motor Prototype

Performance of a Small-Scale High Temperature Superconducting Linear Synchronous Motor Prototype

Experimental and numerical studies of a linear synchronous motor with the secondary made of coated superconductor

Three-Dimensional Temperature Field Calculation and Analysis of an Axial-Radial Flux-Type Permanent Magnet Synchronous Motor

Contact Info

Product

Resources

About