2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives最新文献_第2页

High Frequency Modelling of Stator Windings Dedicated to Machine Insulation Diagnosis by Parametric Identification 基于参数识别的电机绝缘诊断定子绕组高频建模

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393141

W. Liu, E. Schaeffer, L. Loron, P. Chanemouga

{"title":"High Frequency Modelling of Stator Windings Dedicated to Machine Insulation Diagnosis by Parametric Identification","authors":"W. Liu, E. Schaeffer, L. Loron, P. Chanemouga","doi":"10.1109/DEMPED.2007.4393141","DOIUrl":"https://doi.org/10.1109/DEMPED.2007.4393141","url":null,"abstract":"This paper presents a novel state-space modelling dedicated to stator insulation diagnosis of form wound electrical machines by parametric identification. The underlying idea of the proposed diagnosis approach is that there exists a wide frequency domain (from several kHz to hundreds of MHz) which has not yet been exploited by conventional electrical diagnosis tools. The originality of our work, but also its difficulty, consists in searching for the best tradeoff between simplicity for model identiflability and complexity for its diagnosis ability. This is important for diagnosis and maintenance procedures which require to interpret the parameter estimated values and theirs drifts. It is possible only if the model parameters are related closely enough to the system physical parameters. A high voltage Mosfet pulse generator with ultra fast rise time allows theoretical and experimental system identification with respect to main industrial constraints. The first experiments deal with coils taken from a 5 kV induction machine. This allows to isolate and understand the complex phenomena which occur in stator insulation during identification procedures.","PeriodicalId":185737,"journal":{"name":"2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives","volume":"22 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":"126597602","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: 8

A Reliable Rotor Eccentricity Detection Scheme for Induction Machines in the Presence of a Position Dependent Load Torque Oscillation 存在位置相关负载转矩振荡的感应电机转子偏心可靠检测方案

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393075

Long Wu, T. Habetler, R. Harley

引用次数: 8

Rolling Bearing Condition Monitoring Based on Frequency Response Analysis 基于频响分析的滚动轴承状态监测

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393067

S. Villwock, H. Zoubek, M. Pacas

{"title":"Rolling Bearing Condition Monitoring Based on Frequency Response Analysis","authors":"S. Villwock, H. Zoubek, M. Pacas","doi":"10.1109/DEMPED.2007.4393067","DOIUrl":"https://doi.org/10.1109/DEMPED.2007.4393067","url":null,"abstract":"This paper deals with a new diagnosis method for detecting bearing faults. The diagnosis is carried out based on frequency response analysis. The detection of bearing damages on motor and load side of a mechanical drive system is addressed. The mechanics are assumed to be a two-inertia-system with one dominant resonant frequency. The frequency response of the mechanical system of the drive is obtained by using two measured signals. This method is regarded to be superior to one channel analysis that can be found in many technical papers in this field of research. The measurement of the required signal can be accomplished during operation of the plant in closed loop speed control. The system is excited by pseudo random binary testsignals. The deviations between the frequency response obtained during the commissioning of the plant and the curve measured under fault condition serve as indicators for the damage. The present paper addresses the detection of outer and inner race bearing faults. The majority of technical papers often are dedicated to experimental research regarding outer race faults. As inner race faults are much more difficult to diagnose, they are quite seldom in the scope of investigations. Both types of faults cause characteristic fault frequencies, which influence the frequency response of the mechanics. This paper contains experimental results which point out the reliability of the proposed analysis concept for rolling bearing condition monitoring.","PeriodicalId":185737,"journal":{"name":"2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives","volume":"61 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":"115567962","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: 14

Parametric Algorithms for Frequency Calculation in PWM Converters Systems PWM变换器系统中频率计算的参数化算法

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393095

P. Kostyła, I. Hejke, T. Lobos, J. Rezmer, T. Sikorski

引用次数: 0

Condition Monitoring of Generators & Other Subassemblies in Wind Turbine Drive Trains 风力发电机组及其他部件的状态监测

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393125

M. Wilkinson, F. Spinato, P. Tavner

{"title":"Condition Monitoring of Generators & Other Subassemblies in Wind Turbine Drive Trains","authors":"M. Wilkinson, F. Spinato, P. Tavner","doi":"10.1109/DEMPED.2007.4393125","DOIUrl":"https://doi.org/10.1109/DEMPED.2007.4393125","url":null,"abstract":"Offshore wind turbines, incorporating electrical generators and converters, operate in locations where accessibility can lead to long mean times to repair. Condition-based maintenance is therefore essential if cost-effective availability targets are to be reached. As yet the condition monitoring techniques appropriate for offshore wind turbines have not been resolved. Reliability studies have shown that the majority of failure modes in wind turbines are concentrated in drive train subassemblies, including the electrical generator and converter, and are heavily affected by wind conditions. A 30 kW test rig has been constructed, with features similar to a wind turbine drive train, to enable the development of the signal processing techniques necessary for this variable speed, high torque variation application. The test rig includes a low speed shaft, high speed shaft, gearbox and an electrical generator and can be driven by simulated wind conditions. The test rig can also be used to inform the selection of appropriate monitoring instrumentation for offshore wind turbines. A series of condition monitoring approaches have been investigated on this test rig, using measured torque, speed, shaft displacement and gearbox vibration to detect faults. By the use of appropriate signal processing techniques, changes to load conditions, properties of the gearbox and coil faults can be detected.","PeriodicalId":185737,"journal":{"name":"2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives","volume":"55 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":"116386344","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: 85

Automated Method to Verify Industry Standards on Derating of a Three-Phase Induction Motor due to Thermal Stress Caused by Voltage Unbalance 电压不平衡引起的热应力导致三相感应电动机降额的工业标准的自动化验证方法

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393128

D. Springer, E. Stolz, E. Wiedenbrug

引用次数: 0

A Direct Torque Control Scheme for Induction Motor Drives Using the Current Model Flux Estimation 基于电流模型磁链估计的感应电机直接转矩控制方案

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393092

M. Bertoluzzo, G. Buja, R. Menis

{"title":"A Direct Torque Control Scheme for Induction Motor Drives Using the Current Model Flux Estimation","authors":"M. Bertoluzzo, G. Buja, R. Menis","doi":"10.1109/DEMPED.2007.4393092","DOIUrl":"https://doi.org/10.1109/DEMPED.2007.4393092","url":null,"abstract":"The paper deals with a direct torque control (DTC) scheme for Induction Motor (IM) drives where flux and torque of the motor are estimated by the IM current model instead of by the voltage model. The scheme is intended to enable operation of the DTC IM drives at zero speed. As a return, its implementation requires the knowledge of speed, rotor time constant and inductive parameters of the motor. In the paper the performance of the proposed scheme is studied for a drive equipped with an incremental encoder and commanded with a constant flux. Using the position information delivered by the encoder, a suitable representation of the current model is formulated that makes the drive operation feasible at true zero speed. Operating with a constant flux command, the variations in the rotor time constant dominate over the other parameters; their effect on the drive behavior is analyzed in steady state founding that the motor flux and torque are deviated from the references of a quantity, which is a function of the torque reference. Experimental results are given to substantiate both the capabilities of the scheme of developing the full torque at a standstill and the theoretical findings on the drive behavior under rotor time constant mismatch.","PeriodicalId":185737,"journal":{"name":"2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives","volume":"1 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":"127194633","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

On the Frequency Dependence of Harmonic Current Side-Band (HCSB) based Rotor Fault Indicators for Three-Phase Cage Machines 基于谐波电流边带(HCSB)的三相笼型电机转子故障指示器的频率依赖性研究

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393100

C. Bruzzese, E. Santini

引用次数: 3

Model based torque estimation of Permanent Magnet Synchronous Machines 基于模型的永磁同步电机转矩估计

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393091

A. Zentai, T. Dabóczi

引用次数: 7

Innovative Approach To Early Fault Detection For Induction Motors 一种创新的感应电机早期故障检测方法

2007 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2007-12-04 DOI: 10.1109/DEMPED.2007.4393109

F. Ponci, L. Cristaldi, M. Faifer, M. Lazzaroni

引用次数: 9