Determination of Maximum Electromagnetic Torque in PM Brushless Machines Having Two-Segment Halbach Array

被引：63
作者：
Shen, Yang [1 ,2 ]
Liu, G. Y. [3 ]
Xia, Z. P. [1 ]
Zhu, Z. Q. [1 ]
机构：
[1] Univ Sheffield, Dept Elect & Elect Engn, Sheffield S1 3JD, S Yorkshire, England
[2] Naval Univ Engn, Inst Power Elect Technol, Wuhan, Peoples R China
[3] Guangxi Teachers Educ Univ, Coll Phys & Elect Engn, Nanning 530023, Peoples R China
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2014年 / 61卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Analytical model; brushless machine; Halbach array; permanent magnet (PM); MAGNETIC-FIELD DISTRIBUTION; ONE-SIDED FLUXES; PERMANENT; DESIGN; MOTOR; OPTIMIZATION; SEGMENTS;
D O I：
10.1109/TIE.2013.2254101
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper develops a 2-D field analytical model for predicting the magnetic field distribution and the corresponding electromagnetic performance in air- and iron-cored permanent magnet (PM) brushless machines having radially or parallel magnetized two-segment Halbach array. A simple equation is derived to directly predict the optimal magnet ratio for maximum electromagnetic torque, while the influence of pole-pair number and magnet thickness on the optimal magnet ratio is investigated for both air-and iron-cored machines. The analytical model is validated by finite-element analyses and also measurements on a prototype 12-slot/10-pole PM brushless machine.
引用
收藏
页码：718 / 729
页数：12
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