Design of a High-Speed Superconducting Bearingless Machine for Flywheel Energy Storage Systems

被引：19

作者：

Li, Wenlong ^{[1
]}

Chau, K. T. ^{[1
]}

Ching, T. W. ^{[2
]}

Wang, Yubin ^{[1
]}

Chen, Mu ^{[1
]}

机构：

[1] Univ Hong Kong, Dept Elect & Elect Engn, Hong Kong, Hong Kong, Peoples R China

[2] Univ Macau, Fac Sci & Technol, Macau, Peoples R China

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2015年 / 25卷 / 03期

关键词：

Bearingless machine; energy storage; flywheel; homopolar machine; superconducting machine;

D O I：

10.1109/TASC.2014.2367008

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, an 8-pole/12-slot high-speed superconducting bearingless machine is proposed for flywheel energy storage systems. The proposed machine adopts a homopolar configuration: the rotor only consists of iron lamination with eight salient iron poles and the 12-slot stator accommodates all three groups of windings: the high temperature superconducting (HTS) field winding; the armature winding; and the suspension winding. With the HTS field winding, eight iron poles in the rotor are magnetized as 4-pole-pair electromagnets. Also, by adjusting the dc current in the HTS field winding, the air-gap flux can be controlled flexibly. By deploying the suspension winding which shares the same slot with the armature winding, a two-degree-of-freedom suspension force can be generated for bearingless operation.

引用

页数：4

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