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Front. Inform. Technol. Electron. Eng.  2010, Vol. 11 Issue (10): 808-816    DOI: 10.1631/jzus.C0910697
    
Analysis of vibration reduction level in an 8/6 switched reluctance machine by active vibration cancellation
Xu Liu1,2, Zai-ping Pan*,1, Z. Q. Zhu1,2
1 School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China 2 Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 3JD, UK
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Abstract  This paper proposes an analytical model for predicting the maximum vibration reduction level in a four-phase 8/6 switched reluctance machine (SRM) by employing active vibration cancellation (AVC), one of the most effective and convenient methods for reducing the vibration and acoustic noise produced by SRMs. Based on the proposed method, the factors that influence the vibration reduction level are analyzed in detail. The relationships between vibration and noise reduction levels at resonance frequency and rotor speed are presented. Moreover, it is shown that a large damping factor will lead to smaller vibration reduction level with AVC while, in contrast, a large resonance frequency will increase the vibration reduction level. Both finite element analyses and experiments were carried out on a prototype 8/6 SRM to validate the proposed method.

Key wordsActive vibration cancellation      Analytical model      Switched reluctance machine      Vibration     
Received: 13 November 2009      Published: 30 September 2010
CLC:  TM301.4  
Cite this article:

Xu Liu, Zai-ping Pan, Z. Q. Zhu. Analysis of vibration reduction level in an 8/6 switched reluctance machine by active vibration cancellation. Front. Inform. Technol. Electron. Eng., 2010, 11(10): 808-816.

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http://www.zjujournals.com/xueshu/fitee/10.1631/jzus.C0910697     OR     http://www.zjujournals.com/xueshu/fitee/Y2010/V11/I10/808


Analysis of vibration reduction level in an 8/6 switched reluctance machine by active vibration cancellation

This paper proposes an analytical model for predicting the maximum vibration reduction level in a four-phase 8/6 switched reluctance machine (SRM) by employing active vibration cancellation (AVC), one of the most effective and convenient methods for reducing the vibration and acoustic noise produced by SRMs. Based on the proposed method, the factors that influence the vibration reduction level are analyzed in detail. The relationships between vibration and noise reduction levels at resonance frequency and rotor speed are presented. Moreover, it is shown that a large damping factor will lead to smaller vibration reduction level with AVC while, in contrast, a large resonance frequency will increase the vibration reduction level. Both finite element analyses and experiments were carried out on a prototype 8/6 SRM to validate the proposed method.

关键词: Active vibration cancellation,  Analytical model,  Switched reluctance machine,  Vibration 
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