Harmonic Modeling of Armature Field of Air-Cored Linear Synchronous Motor With Racetrack Coil

被引：0

作者：

Luo, Jun ^{[1
]}

Liu, Kang ^{[1
]}

Su, Zhenhua ^{[1
]}

Cui, Libin ^{[1
]}

Li, Jin ^{[1
]}

Ma, Guangtong ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, State Key Lab Tract Power, Chengdu 610031, Peoples R China

来源：

IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION | 2024年 / 10卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Superconducting magnets; Windings; Magnetic separation; Superconducting coils; Synchronous motors; Propulsion; Force; Armature magnetic field; electrodynamic suspension (EDS); harmonic field; linear motors; maglev; multiobjective optimization; HIGH-SPEED MAGLEV; FORCES; LEVITATION; PROPULSION;

D O I：

10.1109/TTE.2023.3327871

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：

High-speed Maglev trains assembled with onboard superconducting magnets (SCM) have drawn wide attentions in recent years, wherein the air-cored linear synchronous motor (LSM), served as the power source for propulsion, is a core component. In this article, a novel equivalent method to deal with irregular distributed currents is proposed, and an analytical model of armature magnetic field is established for the air-cored LSM via 3-D magnetic vector potential (MVP) method. Based on that, the harmonic field suppression mechanism of double-layer winding configuration of the LSM is revealed. Meanwhile, the formulas to calculate the interactive electromagnetic forces from the perspective of armature magnetic field are deduced; therein, the longitudinal end effect of the air-cored LSM has been inherently considered. Finally, both the finite-element analysis and experimental results are employed to verify the validity of theoretical predictions. The proposed method can calculate the armature magnetic field distribution with arbitrary coil shape with high accuracy and thus provide a reliable approach to investigate the electromagnetic force and electromagnetic disturbance from ground coils in electrodynamic suspension (EDS) system.

引用

页码：5400 / 5411

页数：12

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