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鼠笼电机起动暂态转子断条Wigner-Ville分布诊断方法
Alternative TitleDiagnosis of broken rotor bars in squirrel cage induction motor during start-up transient based on Wigner-Ville distribution
贾朱植1,2; 祝洪宇3; 杨理践2; 张吉龙4; 王国庆2
Department数字工厂研究室
Source Publication电机与控制学报
ISSN1007-449X
2018
Volume22Issue:7Pages:69-77
Indexed ByEI ; CSCD
EI Accession number20184406006883
CSCD IDCSCD:6260084
Contribution Rank4
Funding Organization中国科学院重点部署项目(KGZD-EW-302) ; 辽宁省自然科学基金(2015010140-301)
Keyword鼠笼电机 Park变换 小波变换 Wigner-ville分布 故障诊断
Abstract

鼠笼电机起动暂态破坏了电机电流信号特征分析(MCSA)方法的使用条件,导致该方法无法诊断出起动运行状态下的转子断条故障。针对这一问题,提出鼠笼电机早期转子断条故障Wigner-Ville分布诊断方法。首先,利用离散小波变换对三相定子电流Park矢量模平方信号预处理,借以消除谐波干扰和交叉项影响,然后通过Wigner-Ville分布描述故障特征谐波的能量-滑差变化趋势,并结合其能量测度判断转子断条故障发生与否。在3 kW电机实验台上对所提出的方法进行实验验证,实验结果证实了所提方法的有效性。

Other Abstract

Motor current signature analysis ( MCSA) fails to detect broken rotor bars in an induction motor,due to the fact that assumption of steady-state becomes unavailable during start-up transient. The diagnosis techniques based on Wigner-Ville distribution ( WVD) is proposed to resolve the problem. Firstly,preprocessing for square phase-3 stator current Park's vector modulus signal was completed by discrete wavelet transform ( DWT) for the purpose of eliminating harmonic disturbance and restraining cross-term which prevents diagnosis effectiveness. Then,WVD was conducted on the obtained square Park's vector modulus signal. And combining with the evolution of energy-slip curve characteristic pattern and the WVD energy measurement during start-up transient, it is judged if the broken rotor bar defect occurs. The experiment verification was performed on a 3 kW motor experiment test bench. Test results of induction machines operating during start-up transient show the ability of the presented method to detect broken rotor bars.

Language中文
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/21863
Collection数字工厂研究室
Corresponding Author祝洪宇
Affiliation1.辽宁科技大学应用技术学院;
2.沈阳工业大学信息科学与工程学院;
3.辽宁科技大学电子与信息工程学院;
4.中国科学院沈阳自动化研究所
Recommended Citation
GB/T 7714
贾朱植,祝洪宇,杨理践,等. 鼠笼电机起动暂态转子断条Wigner-Ville分布诊断方法[J]. 电机与控制学报,2018,22(7):69-77.
APA 贾朱植,祝洪宇,杨理践,张吉龙,&王国庆.(2018).鼠笼电机起动暂态转子断条Wigner-Ville分布诊断方法.电机与控制学报,22(7),69-77.
MLA 贾朱植,et al."鼠笼电机起动暂态转子断条Wigner-Ville分布诊断方法".电机与控制学报 22.7(2018):69-77.
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