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

Turbogenerator Rotor Interturn Fault Detection Using the Leakage Field Analysis - Case Study 利用泄漏场分析进行汽轮发电机转子转间故障检测-实例研究

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393135

A. Miletic, D. Turk, J. Polak

引用次数: 5

Stator Current-Based Bearing Fault Detection Techniques: A General Review 基于定子电流的轴承故障检测技术综述

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393063

Wei Zhou, T. Habetler, R. Harley

引用次数: 72

Images Detection and Diagnosis of Corona Discharge on Porcelain Insulators at 22.9kV D/L 22.9kV D/L下瓷绝缘子电晕放电的图像检测与诊断

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393138

K. Shong, Young-Seok Kim, Sun-gu Kim

{"title":"Images Detection and Diagnosis of Corona Discharge on Porcelain Insulators at 22.9kV D/L","authors":"K. Shong, Young-Seok Kim, Sun-gu Kim","doi":"10.1109/DEMPED.2007.4393138","DOIUrl":"https://doi.org/10.1109/DEMPED.2007.4393138","url":null,"abstract":"This study investigated detection of corona discharge on porcelain insulators at 22.9 kV D/L. It carried out an experiment and an actual measurement about corona detection using a UV-camera. It was possible to detect an ultraviolet (240~320 nm) of corona discharge on porcelain insulators before the infrared generation due to joule's heat or visible ray. The step of the said inspection standards is applied with 65% of humidity, and it is required to apply them a lot more severely in the areas where more saturated humidity exists all the time. Namely, in case that the UV images detected from the areas with 65% of humidity are used as data and their neighboring environments change and more than 80% of humidity is saturated, it is very advisable to replace them in the Inspection step. This experiment and inspection would need to respect the above criteria. It was required to verify various experimental conditions and on-site inspection afterwards, but it was believed to minimize the measurement error by data-basing research results in a continuous manner and it was necessary to establish diagnosis technologies and standards in various electrical power facilities.","PeriodicalId":185737,"journal":{"name":"2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives","volume":"11 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":"122480145","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: 29

Detection of Stator Short Circuits in PMSM by mean of joint Time-Frequency Analysis 基于时频联合分析的永磁同步电机定子短路检测

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393131

J. Rosero, J. Cusidó, A. García, L. Romeral, J. Ortega

引用次数: 14

An Analysis and Verification on Deterioration Patterns of Faulted Cables for Resolution of Product Liability Conflicts 基于产品责任冲突解决的故障电缆劣化模式分析与验证

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393137

Young-Seok Kim, K. Shong, Sun-gu Kim

{"title":"An Analysis and Verification on Deterioration Patterns of Faulted Cables for Resolution of Product Liability Conflicts","authors":"Young-Seok Kim, K. Shong, Sun-gu Kim","doi":"10.1109/DEMPED.2007.4393137","DOIUrl":"https://doi.org/10.1109/DEMPED.2007.4393137","url":null,"abstract":"In order to examine the causes of faulted cables under the operation of product liability(PL) law, it was necessary to database the patterns of faulted cables in materials for electric conductivity and insulation. Accurate analyses such as external and surface analysis were performed for the faulted cables and the over-current was given to copper wire used as a cable conductor for verifying the causes of accidents and a pilot experiment for accident patterns was conducted. Meanwhile, the study performed an experiment for the accident patterns of insulation materials in a state of over-voltage using the cables identical to the faulted cables. Through the reconstructed experiment for the cable, the dielectric breakdown by over-voltage took place and it demonstrated the same form as the faulted cable. Therefore, it has been assumed that the causes of faulted cable would be the dielectric breakdown by product defects due to the dissatisfaction of cable insulation performance for the standards of IEC 60502-1 and IEC 60811-1, rather than the accidents by over-current. These results would be used as scientific data in the event of PL conflicts of electric facilities in Korea in the future.","PeriodicalId":185737,"journal":{"name":"2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives","volume":"52 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":"129960034","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: 2

A Nonintrusive Induction Motor Stator Resistance Estimation Method using a Soft-Starter 基于软起动器的非侵入式感应电机定子电阻估计方法

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393094

Pinjia Zhang, B. Lu, T. Habetler

引用次数: 5

Comparison of models of faulty induction motors: Performances and applications 故障感应电动机的型号比较:性能和应用

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393083

J. Sprooten, J. Gyselinck, J. Maun

{"title":"Comparison of models of faulty induction motors: Performances and applications","authors":"J. Sprooten, J. Gyselinck, J. Maun","doi":"10.1109/DEMPED.2007.4393083","DOIUrl":"https://doi.org/10.1109/DEMPED.2007.4393083","url":null,"abstract":"This paper proposes a comparison of several circuit models of induction motors with broken bars in terms of representation of the phenomena, identifiability of its parameters as well as computing time. Such a comparison is rare as many papers focus on the presentation of new models. The three models studied in this paper are based on electrical circuit equations obtained using a common set of hypotheses which is important to reach the objectives. The different models are totally equivalent in healthy operations. A d-q stator transformation is used for the implementation of Model 1, a asymmetrical d-q rotor transformation is then added in the case of Model 2 and the application of the theorem of superposition leads to Model 3. Model 1 gives quite accurate results but requires extensive computing time and a precise knowledge of the rotor parameters. Equivalent performances are obtained with Model 2 but with a much lower computing time. The drawback is that the value of the d and q rotor resistances and inductances need to be numerically computed as they are functions of the slip. Finally Model 3 reaches less accurate results for high fault magnitude but in a low computing time and with few parameter knowledge as well as a good interpretation of the faulty machine behaviour. The three presented models cover then the complete range of applications, i.e. from the faulty machine test platform to the on-line diagnosis of machines.","PeriodicalId":185737,"journal":{"name":"2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives","volume":"44 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":"126816640","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: 2

A Modelica Library for the Simulation of Electrical Asymmetries in Multiphase Machines - The ExtendedMachines Library 用于多相电机中电不对称仿真的Modelica库- ExtendedMachines库

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393104

C. Kral, A. Haumer, F. Pirker

引用次数: 8

Upstream Impedance Diagnostic for Three-Phase Induction Motors 三相感应电动机的上游阻抗诊断

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393129

J. Bockstette, E. Stolz, E. Wiedenbrug

引用次数: 22

Finite Element Model for the Study of Inter-Turn Short Circuits in Induction Motors 异步电动机匝间短路研究的有限元模型

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393130

C. Rojas, M. Melero, M. F. Cabanas, J. Cano, G. A. Orcajo, F. Pedrayes

{"title":"Finite Element Model for the Study of Inter-Turn Short Circuits in Induction Motors","authors":"C. Rojas, M. Melero, M. F. Cabanas, J. Cano, G. A. Orcajo, F. Pedrayes","doi":"10.1109/DEMPED.2007.4393130","DOIUrl":"https://doi.org/10.1109/DEMPED.2007.4393130","url":null,"abstract":"This paper presents a finite element model for the study of the behavior of induction motors under inter-turn short circuit conditions. The main advantages of this model are its simplicity and the possibility of simulating different types of short circuits, involving different number of shorted turns located in different positions. This is achieved by means of the combination of a peculiar coil definition in the bi-dimensional finite element model with an external circuit coupled with it. The proposed model has been applied to a low-voltage random-wound induction motor, especially rewound for this study in order to allow the authors to introduce inter-turn short-circuits in any specific place of the windings. Experimental tests were performed on this machine in healthy and short-circuit conditions and, in both cases, measurements of supply currents and electromagnetic torque were taken. The spectral analysis of these magnitudes showed a good agreement between simulation and experimental results, validating the model for this kind of study.","PeriodicalId":185737,"journal":{"name":"2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives","volume":"24 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":"134183495","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: 20