Affiliation(s):
College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China;
moreAffiliation(s): College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; Electric Power Research Institute of State Grid Zhejiang Electric Power Corporation, Hang Zhou 310014, China;
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Chao LUO, Bowen XU, Jien MA, Jiancheng ZHANG, Jiabo SHOU, Youtong FANG. Design of a 35-kV high-temperature superconducting synchronous machine with optimized field winding[J]. Journal of Zhejiang University Science A,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A2300449
@article{title="Design of a 35-kV high-temperature superconducting synchronous machine with optimized field winding", author="Chao LUO, Bowen XU, Jien MA, Jiancheng ZHANG, Jiabo SHOU, Youtong FANG", journal="Journal of Zhejiang University Science A", year="in press", publisher="Zhejiang University Press & Springer", doi="https://doi.org/10.1631/jzus.A2300449" }
%0 Journal Article %T Design of a 35-kV high-temperature superconducting synchronous machine with optimized field winding %A Chao LUO %A Bowen XU %A Jien MA %A Jiancheng ZHANG %A Jiabo SHOU %A Youtong FANG %J Journal of Zhejiang University SCIENCE A %P %@ 1673-565X %D in press %I Zhejiang University Press & Springer doi="https://doi.org/10.1631/jzus.A2300449"
TY - JOUR T1 - Design of a 35-kV high-temperature superconducting synchronous machine with optimized field winding A1 - Chao LUO A1 - Bowen XU A1 - Jien MA A1 - Jiancheng ZHANG A1 - Jiabo SHOU A1 - Youtong FANG J0 - Journal of Zhejiang University Science A SP - EP - %@ 1673-565X Y1 - in press PB - Zhejiang University Press & Springer ER - doi="https://doi.org/10.1631/jzus.A2300449"
Abstract: This paper proposes the application of high-voltage stator-cable windings in superconducting machines, based on the characteristics of strong magnetic fields and large air gaps. Cross-linked polyethylene cable winding can be employed to achieve a rated voltage of 35 kV in DC-field superconducting machines, thereby enabling a direct connection between the superconducting machine and the power grid, eliminating the need for transformers. We first, through finite-element analysis, demonstrate that the proposed high-voltage high-temperature superconducting machine not only meets the requirement of a 35-kV rated voltage, but also exhibits minimal flux leakage, torque fluctuation, and harmonic distortion. We then compare three candidate Types to discuss the tradeoff between the multi-group superconducting field winding arrangement and machine performances. We propose inverted trapezoidal superconducting field winding as a promising candidate, because it has minimal superconductivity material usage, the largest safety margin for the superconducting coils (SC), low thrust ripple, and low total harmonic distortion with the desired 35-kV-rated voltage. Finally, through large-scale design parameter sweeping, we show how we selected the optimal parameters for field winding and validated them by the finite-element method.
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