Tests for dynamic characteristics of a high speed permanent magnet motor&rsquo;s rotor under different loads

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Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (15) : 1-5.

Tests for dynamic characteristics of a high speed permanent magnet motor’s rotor under different loads

HAO Long,YANG Jinfu,TANG Changliang,HAN Dongjiang,LEI Huan

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Abstract

A test platform for a 45kW high speed permanent magnet motor’s rotor was established，and the rotor was supported with hybrid gas bearings. Dynamic characteristics of the shaft system under different loads were tested for 5 times based on this test platform. Bearing gas supply pressures were 0.8Mpa, and the motor rated load were 0kW, 15kW, 30kW, 60kW and 145kW for test 1~test 5. It was shown that the unbalanced magnetic pull increases with increase in rated load under the same rotating speed; the rotating speed for low frequency whirl occurrence decreases from 607.42Hz to 500 HZ when the rated load increases from 0kW to 145kW; when the rated loads are 60kW and 145kW, the rotor’s single low frequency whirl feature changes into the double-low frequency feature, and the rotating speed for rubbing occurrence decreases.

Key words

high speed permanent magnet motor / varying rated load / unbalanced magnet pull / low frequency whirl / double-low frequency

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HAO Long,YANG Jinfu,TANG Changliang,HAN Dongjiang,LEI Huan. Tests for dynamic characteristics of a high speed permanent magnet motor’s rotor under different loads[J]. Journal of Vibration and Shock, 2018, 37(15): 1-5

References

[1] 韩东江, 杨金福, 耿加民,等. 高速永磁电动机气体轴承-转子系统振动特性[J]. 航空动力学报, 2013, 28(8):1791-1796.
HAN Dong-jiang, YANG Jin-fu, GENG Jia-min,et al. Vibration characteristics of gas bearing-rotor system of high-speed permanent magnet machine[J]. Journal of Aerospace Power, 2013, 28(8):1791-1796.
[2] 王凤翔. 高速电机的设计特点及相关技术研究[J]. 沈阳工业大学学报, 2006, 28(3):258-264.
WANG Feng-xiang. Study on design feature and related technology of high speed electrical machines[J]. Journal of Shenyang University of Technology, 2006, 28(3):258-264.
[3] 王继强, 王凤翔, 鲍文博,等. 高速永磁电机转子设计与强度分析[J]. 中国电机工程学报, 2005, 25(15):140-145.
WANG Ji-qiang, WANG FENG-xiang, BAO Wen-bo,et al. ROTOR DESIGN AND STRENGTH ANALYSIS OF HIGH SPEED PERMANENT MAGNET MACHINE[J]. Proceedings of the CSEE, 2005, 25(15):140-145.
[4] 张广辉, 刘占生, 章正传. 旋转冲压发动机高速动静压混合气体轴承转子动力学特性试验研究[J]. 振动与冲击, 2009, 28(9):74-78.
ZHANG Guang-hui, LIU Zhan-sheng, ZHANG Zheng-chuan. Dynamic behavior of a high-speed hybrid gas bearing-rotor system for a rotating ram jet[J]. Journal of vibration and shock, 2009, 28(9):74-78.
[5] 田拥胜, 孙岩桦, 虞烈. 高速永磁电机电磁轴承转子系统的动力学及实验研究[J]. 中国电机工程学报, 2012, 32(9):116-123.
TIAN Yong-sheng, SUN Yan-hua, YU Lie. Dynamical and Experimental Researches of Active Magnetic Bearing Rotor Systems for High-speed PM Machines[J]. Proceedings of the CSEE, 2012, 32(9):116-123.
[6] 岳二团, 甘春标, 杨世锡. 气隙偏心下永磁电机转子系统的振动特性分析[J]. 振动与冲击, 2014, 33(8):29-34.
YUE Er-tuan, GAN Chun-biao, YANG Shi-xi. Vibration characteristics analysis of a rotor for a permanent magnet motor with Air-Gap Eccentricity[J]. Journal of vibration and shock, 2014, 33(8):29-34.
[7] Kim U，Lieu D K． Magnetic field calculation in permanent magnet motors with rotor eccentricity: without slotting effect［J］． IEEE Transactions on Magnetics，1998，34( 4) : 2243-2252．
[8] Kim T J，Hwang S M，Park N G． Analysis of vibration for permanent magnet motors considering mechanical and magnetic couple effects ［J ］． IEEE Transactions on Magnetics，2000，36( 4) : 1346-1350．
[9] D. Guo，F. Chu，D. Chen. The unbalanced magnetic pull and its effects on vibration in a three-phase generator with eccentric rotor [J]. Journal of Sound & Vibration, 2002, 254(2):297-312.
[10] 王天煜. 高速永磁电机转子综合设计方法及动力学特性的研究[D]. 沈阳工业大学, 2010.
Wang Tian-yu. STUDY ON COMBINED DESIGN AND DYNAMIC CHARACTERISTICS OF ROTOR FOR HIGH-SPEED PM MACHINE[D]. Shenyang University of Technology, 2010.
[11] 王天煜, 王凤翔, 方程. 高速永磁电机机组轴系振动研究[J]. 振动与冲击, 2011, 30(9):111-115.
WANG Tian-yu，WANG Feng-xiang，FANG Cheng. Vibration analysis of shafting of high speed permanent magnetic machinery[J]. Journal of vibration and shock, 2011, 30(9):111-115.
[12] 徐学平, 韩勤锴, 褚福磊. 静载荷作用下偏心转子电磁振动特性[J]. 清华大学学报自然科学版, 2016.56 (2):176-184.
XU Xue-ping, HAN Qin-kai, CHU Fu-lei. Electromagnetic vibration characteristics of an eccentric rotor with a static load[J]. J Tsinghua Univ(Sci & Technol), 2016, 56(2):176-184.
[13] 陈小安, 张朋, 陆永亚,等. 计电磁不平衡拉力的高速电主轴转子偏心特性研究[J]. 振动与冲击, 2014, 33(2):37-40.
CHEN Xiao-an, ZHANG Peng, LU Yong-ya, et al. Dynamic characteristics of high-speed motorized spindles affected by rotor’s eccectric mass[J]. Journal of vibration and shock, 2014, 33(2):37-40.
[14] 何民，杨金福，耿加民，等．一种高速永磁电机：中国，201010262941.4[P]. 2010-12-15.
HE Min, YANG Jin-fu, GENG Jia-min, et al. A Type of High Speed Permanent Magnet Motor: Chian, 201010262941.4[P]. 2010-12-15.
[15] Muszynska A. Rotordynamics[M]. CRC press, 2005.