Design to reduce electromagnetic vibration in integral-slot SPM machine considering force modulation effect  

作　　者：ZHU ShengDao ZHAO WenXiang JI JingHua LIU GuoHai LEE Christopher H.T. 

机构地区：[1]School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,China [2]School of Electrical and Electronic Engineering,Nanyang Technological University,Singapore 639798,Singapore

出　　处：《Science China(Technological Sciences)》2022年第8期1867-1877,共11页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 51991383 and 52025073)。

摘　　要：In this paper, two different designs, with dummy slots and bread-loaf magnets techniques, are presented to reduce the electromagnetic vibration in integral-slot surface-mounted permanent-magnet(SPM) machines. Firstly, the stator slotting effect on the magnetic field modulation and radial force modulation is investigated. It reveals the amplitude of the modulated magnetic field and modulated radial force is greatly affected by the slot opening effect, while the spatial order is closely associated with the slot numbers. Subsequently, the dummy slots and bread-loaf magnets design are developed for a 36-slot/12-pole integral-slot SPM machine to reduce the electromagnetic vibration. Finally, two SPM machines, with conventional and bread-loaf magnets,are manufactured. Experimental tests are carried out to validate the theoretical analyses.

关 键 词：surface-mounted permanent-magnet machine slot opening width dummy slots bread-loaf magnets vibration reduction 

分 类 号：TM351[电气工程—电机] TB53[理学—物理]