Multi-objective optimization design of a high-speed PM machine supported by magnetic bearings

被引：13

作者：

Han, Bangcheng ^{[1
]}

Xue, Qinghao

Liu, Xu

Wang, Kun

机构：

[1] Beihang Univ, Sch Instrument Sci & Optoelect Engn, Beijing 100191, Peoples R China

来源：

MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2017年 / 92卷

基金：

中国国家自然科学基金;

关键词：

Multi-objective optimization; High-speed motor; Rotor loss; FEM; ROTOR; MOTOR; LOSSES;

D O I：

10.1016/j.ymssp.2017.01.013

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper proposes an optimal design method of permanent magnet machine (PMM) with cylindrical permanent magnet supported by magnetic bearings. The objectives of optimization design are minimizing the rotor loss while maximizing the power density of the PMM as well as the 1st order nature frequency of the rotor, and the constraints are size, the strength safety factor and the phase current. A 30 kW, 48,000 r/min PMM designed by the multi-objective optimization method is proposed and the results indicate: the rotor loss is decreased from 393 W to 290 W (is reduced by 26.2%); the power density of the PMM is increased from 1.86 kW/kg to 2.19 kW/kg (is increased by 17.7%); the 1st order nature frequency of the rotor is increased from 1579 Hz to 1812 Hz (is increased by 14.7%). The performances of the PMM are improved after optimization, which are verified by experiment. (C)2017 Elsevier Ltd. All rights reserved.

引用

页码：349 / 363

页数：15

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