2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives最新文献_第5页

A Distributed System of Signal Acquisition for Induction Motors Diagnostic 一种用于感应电动机诊断的分布式信号采集系统

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393105

T. Węgiel, M. Sułowicz, D. Borkowski

引用次数: 11

Detection of Rotor Faults in Synchronous Generators 同步发电机转子故障的检测

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393106

M. Kiani, W. Lee, R. Kenarangui, B. Fahimi

{"title":"Detection of Rotor Faults in Synchronous Generators","authors":"M. Kiani, W. Lee, R. Kenarangui, B. Fahimi","doi":"10.1109/DEMPED.2007.4393106","DOIUrl":"https://doi.org/10.1109/DEMPED.2007.4393106","url":null,"abstract":"Synchronous generators are subject to a variety of failures which may occur in various parts of their structure. Furthermore, these faults may be categorized as partial failure or catastrophic faults. One may note that most partial faults can eventually result in a permanent lack of service. The present digest deals with a class of failures which may happen in the rotor of a turbo-generator. These faults include electrical failures in the Held n inding and mechanical faults in the form of dynamic eccentricity. Since the electromechanical conversion of energy is closely related to magnetic response of the machine any alteration of the excitation and geometry will result in detectable changes in stator quantities such as no-load voltage. The present digest is based on a detailed analysis of the electromagnetic response of a two pole turbo generator under various types of rotor faults. In the first step existence of detectable time-domain signatures have been investigated. Next, uniqueness of these signatures is studied. In the last part, a systematic method for just-in-time detection and classification of various rotor faults has been developed. Finite element analysis has been used for this study.","PeriodicalId":185737,"journal":{"name":"2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives","volume":"15 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114031965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 43

On-line condition monitoring technique for PMSM operated with eccentricity 偏心运行永磁同步电机在线状态监测技术

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393077

J. Rosero, J. Ortega, A. Gacía, L. Romeral

引用次数: 13

Experimental Performances of Harmonic Current Sideband Based Broken Bar Indicators 基于边带的谐波电流断条指示器的实验性能

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393099

C. Bruzzese, E. Santini

{"title":"Experimental Performances of Harmonic Current Sideband Based Broken Bar Indicators","authors":"C. Bruzzese, E. Santini","doi":"10.1109/DEMPED.2007.4393099","DOIUrl":"https://doi.org/10.1109/DEMPED.2007.4393099","url":null,"abstract":"Experimental work is presented in this paper, that clearly indicates the good behavior of some novel rotor bar fault indicators for converter-fed squirrel cage induction motors. The ratio of the fifth harmonic upper sideband on the seventh harmonic and the ratio of the seventh harmonic lower sideband on the fifth harmonic seem to be good broken bar indicators, largely independent on load conditions and drive inertia, and with sufficient rejection to frequency variations. We remember that classical indicators used in MCSA (such us the ratio of the first harmonic lower sideband on the first harmonic) depend heavily on those conditions. The relationship between the new fault indicators and the number of broken bars is quite linear, too. Harmonic current side-band based indicators (HCSBIs) have been previously derived by the authors from the multi-phase symmetrical component theory (MPSCT). Results of broken bar tests conducted on an experimental cage motor with variable fault gravity and load level have been reported and commented in this paper, for HCSBIs performance evaluation about fault severity assessment in case of broken bars.","PeriodicalId":185737,"journal":{"name":"2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116791813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Armature Fault Diagnostics of a Commutator Motor using the Frequency Response Analysis 基于频率响应分析的换向器电机电枢故障诊断

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393108

R. Retana, A. Pavveletz, H. Herzog

引用次数: 1

Frequency analysis of faulty machines - possibilities and limitations 故障机器的频率分析。可能性和局限性

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393081

T.J. Sobezyk

引用次数: 6

Non-Contact Measurement for Mechanical Fault detection in Production Line 生产线机械故障检测的非接触式测量

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393111

B. Torcianti, J. Vass

{"title":"Non-Contact Measurement for Mechanical Fault detection in Production Line","authors":"B. Torcianti, J. Vass","doi":"10.1109/DEMPED.2007.4393111","DOIUrl":"https://doi.org/10.1109/DEMPED.2007.4393111","url":null,"abstract":"Appliance manufacturing companies more often ask for an automatic on-line inspection system to accurately monitor the characteristics of all their products. It is well known that vibration tests enable discrimination between good and faulty products and hence the analysis of the vibration signals can be used for quality control of household appliances on the production lines. Laser Doppler Vibrometry (LDV) is now an established technique for vibration measurements in industrial applications where non-contact operations are essential. Despite the advantages of the LDV, speckle noise occurs when rough surfaces are measured and the object is moving. Therefore, spike removal is a crucial point for a reliable system of mechanical defects detection. This paper deals with the integration of pattern recognition techniques into an automatic test system for data acquisition and classification, in order to detect mechanical faults of washing machines (WM) in the production line. In particular, as the electrical motor is one of the most critical part of the assembled system, the goal is to detect the faults related to the motor by the use of a Laser Doppler Vibrometer pointing the tub of the washing machine. First, data acquisition and its problems are introduced. Then, the adopted pre-processing techniques for speckle noise reduction is illustrated. Finally, feature extraction and real examples are shown to test the system.","PeriodicalId":185737,"journal":{"name":"2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127492732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Current harmonics analysis as a method of electrical faults diagnostic in switched reluctance motors 电流谐波分析在开关磁阻电机电气故障诊断中的应用

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393132

P. Bogusz, M. Korkosz, J. Prokop

引用次数: 24

A General Diagnostic Method for Doubly Fed Induction Machine Drives Based on Field Oriented Control 基于磁场定向控制的双馈感应电机通用诊断方法

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393122

D. Casadei, F. Filippetti, C. Rossi, A. Stefani, A. Capolino, A. Yazidi

引用次数: 8

Devices for Prevention of Bearings Devaluation by Electric Current 防止轴承因电流损坏的装置

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393114

K. Chmelík, V. Čech, J. Foldyna

引用次数: 2