Chinese Journal of Low Temperature Physics. 2014, (03) Core

MAGNETIC FIELD ANALYSIS OF SUPERCONDUCTING GENERATORS BASED ON ANALYTICAL METHOD AND OPTIMAL DESIGN OF THE STRUCTURESChinese Full Text

Wenfeng ZHANG;Dong XIA;Dong ZHANG;Zhiqiang YU;University of Chinese Academy of Sciences;Institute of Electrical Engineering,Chinese Academy of Sciences;Key Laboratory of Applied Superconductivity,Chinese Academy of Sciences;

Abstract: Adopting high temperature superconducting tapes,Hybrid superconducting generators had,compared to traditional ones,different structures,and so did the design method.In this paper,using Fourier Decomposition,the concentrated winding of the generator could be equivalent to sinusoidal distributed ones along the rotor surface.Based on the results,analytical method was used to calculate the magnetic field.Harmonics contained in the waveform of air-gap magnetic flux density were evaluated at different winding open angles.By conducting parametric analysis,changes of the generator’s power density according to the sizes of environmental shield and rotor were also studied in this paper.Results of the magnetic field calculation gained by Analytical Method had a good agreement with those by Finite Element Method.Researches revealed that,the open angle of the field winding had an effect on the waveform and amplitude of air-gap magnetic flux density,and proper thicknesses of the environmental shield and rotor could enhance the power density of the generator.

Keywords：

superconducting generator; Analytical method; open angle of the field winding; air-gap magnetic flux density; power density;

DOI：
10.13380/j.cnki.chin.j.lowtemp.phys.2014.03.011
Series：
Subject：
Classification Code：
TM31

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MAGNETIC FIELD ANALYSIS OF SUPERCONDUCTING GENERATORS BASED ON ANALYTICAL METHOD AND OPTIMAL DESIGN OF THE STRUCTURESChinese Full Text

Wenfeng ZHANG;Dong XIA;Dong ZHANG;Zhiqiang YU;University of Chinese Academy of Sciences;Institute of Electrical Engineering,Chinese Academy of Sciences;Key Laboratory of Applied Superconductivity,Chinese Academy of Sciences;

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