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[1]张志艳,马宏忠,杨存祥,等. 小波包与样本熵相融合的PMSM失磁故障诊断[J].电机与控制学报,2015,19(02):26-32.[doi:10. 15938/j. emc.2015.02. 005]
 ZHANG Zhi-yan,MA Hong-zhong YANG Cun-xiang SUN Jun-man. Demagnetization fault diagnosis in permanent magnet synchronousmotor combination wavelet packet with sample entropy[J].,2015,19(02):26-32.[doi:10. 15938/j. emc.2015.02. 005]
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 小波包与样本熵相融合的PMSM失磁故障诊断
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
19
期数:
2015年02
页码:
26-32
栏目:
出版日期:
2015-02-15

文章信息/Info

Title:
 Demagnetization fault diagnosis in permanent magnet synchronous
motor combination wavelet packet with sample entropy
作者:
 张志艳 12马宏忠 2杨存祥 2孙君曼 2
 1.河南大学能源与电气学院,江苏南京210098;2.郑州轻工业学院电气信息工程学院,河南郑州450002
Author(s):
 ZHANG Zhi-yan 1 2MA Hong-zhong 1YANG Cun-xiang 2SUN Jun-man 2
 1. College of Energy and Electrical Engineering, Hohai University, Nanjing 210098,China ;
2. College of Electrical Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002,China
关键词:
 永磁同步电机失磁故障诊断小波包样本熵不平衡
Keywords:
 Keywords:permanent magnet synchronous motorsdemagnetizationfault diagnosiswavelet packet sample entropyimbalance
分类号:
TM 351
DOI:
10. 15938/j. emc.2015.02. 005
文献标志码:
A
摘要:
 摘要:为了研究永磁同步电机失磁故障最为敏感的特征量和区分故障频率来源,提出采用小波包
与样本熵相融合的失磁故障诊断方法,研究该诊断方法的数学机理,并给出小波包分析定子电流频
谱的详细步骤和小波包变换后最大能量频率子带样本墒的计算过程,通过比较样本熵的大小,确定
故障频率来源。搭建实验平台,采集不同工况下的永磁同步电机定子电流数据,用该诊断方法进行
分析,其结果表明,永磁同步电机失磁故障宜取5次、7次谐波作为故障特征量;样本墒的大小因电
机运行状态不同而不同,可以确定故障频率来源于永磁同步电机失磁故障。
Abstract:
 Abstract:In order to study the most sensitive fault characteristic quantities of permanent mwgnet synchro-
noun motor(PMSM ) demagnetization fault and distinguish the fault frequency source , w new fwult diwgno-
sis method based on combination Wwvelet Packet(WP)transform with sample entropy was proposed.
Mathematics mechanism of the fault diagnosis method was studied,and detailed steps on stator current
frequency spectrum analysis using WP and maximum energy frequency sub bands sample entropy cwlculw-
tion process were given. By comparing the size of sample entropy,the fault frequency source was wscer-
twined. The experimental platform was set up,the stwtor current dwtw under different conditions of the
PMSM wws wcquired,wnd the wcquisition dwtw by the combinwtion fwult diwgnosis method wws wnwlyzed.
The results show thwt the 5th wnd 7th hwrmonic wre suitwble ws demwgnetizwtion fwult chwrwcteristic quwntity
wnd fwult frequencies from demwgnetizwtion fwult of the PMSM is verified becwuse swmple entropy size
chwnges with the PMSM running stwte difference.

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备注/Memo

备注/Memo:
 基金项目:河南省科技计划(基金)基础研究项目(112300410146);国家自然科学基金(51177039)
更新日期/Last Update: 2015-07-22