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Quantitative Analysis of Electromagnetic Forces by Decoupling Air-Gap Field Modulation and Force Modulation in Rotor-Permanent-Magnet Machines
被引:11
|作者:
Yin, Hang
[1
]
Zhang, Hengliang
[1
]
Hua, Wei
[1
]
Wu, Zheng
[1
]
Li, Chen
[1
]
机构:
[1] Southeast Univ, Sch Elect Engn, Nanjing 210096, Peoples R China
基金:
国家重点研发计划;
中国国家自然科学基金;
关键词:
Harmonic analysis;
Air gaps;
Modulation;
Atmospheric modeling;
Vibrations;
Analytical models;
Force;
Electromagnetic forces (EFs);
modulation effect;
permanent-magnet (PM) machines;
quantitative analysis;
vibration;
VIBRATION PERFORMANCE;
TOOTH MODULATION;
RADIAL FORCE;
MOTORS;
D O I:
10.1109/TIE.2022.3161759
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 article proposes a quantitative analysis model for the electromagnetic forces in rotor-permanent-magnet (rotor-PM) machines, decoupling the air-gap field modulation and the force modulation. First, a unified analytical model of the equivalent concentrated forces (ECFs) is deduced based on the air-gap flux density (AFD) harmonics. Second, the air-gap field modulation and the force modulation are decoupled by the ECF coefficient. Then, to determine the contributions of the modulated AFD harmonics, a quantitative analytical method is proposed. On this basis, the vibration performance of a 12-slot/10-pole (12s/10p) interior PM machine is investigated considering the modulation effect. The results reveal that the influences of rotation speed, PM-excited field, and armature field on the vibration can be clearly represented by the proposed method. Finally, the modal test and the acceleration measurement are conducted to validate the analysis.
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页码:1310 / 1320
页数:11
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