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8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives最新文献

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An insightful geometrical interpretation of spectral components of the physical quantities involved in induction machines rotor faults 对感应电机转子故障中物理量的光谱分量的深刻的几何解释
8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives Pub Date : 2011-11-01 DOI: 10.1109/DEMPED.2011.6063597
C. Concari, G. Franceschini, C. Tassoni
{"title":"An insightful geometrical interpretation of spectral components of the physical quantities involved in induction machines rotor faults","authors":"C. Concari, G. Franceschini, C. Tassoni","doi":"10.1109/DEMPED.2011.6063597","DOIUrl":"https://doi.org/10.1109/DEMPED.2011.6063597","url":null,"abstract":"This paper deeply investigates features of both current space vector components in rotating reference frame and stator current sidebands in case of induction motor rotor fault. Geometrical loci described by the representative phasors at pulsation 2sω and their dependence on inertia are evidenced. The link among torque ripple, speed ripple and flux angular ripple is considered as well, obtaining a thorough understanding and geometrical visualization of related physical phenomena.","PeriodicalId":379207,"journal":{"name":"8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124725465","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
Practical results of on-line diagnostic methods synergy for motors and their efficacy 电机在线诊断方法协同的实际效果及其功效
8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives Pub Date : 2011-11-01 DOI: 10.1109/DEMPED.2011.6063676
Y. Aksenov, A. P. Proshletsov, I. Yaroshenko, G. Noe
{"title":"Practical results of on-line diagnostic methods synergy for motors and their efficacy","authors":"Y. Aksenov, A. P. Proshletsov, I. Yaroshenko, G. Noe","doi":"10.1109/DEMPED.2011.6063676","DOIUrl":"https://doi.org/10.1109/DEMPED.2011.6063676","url":null,"abstract":"This paper discusses motor on-line diagnostics and problems connected with this issue. The research proves that the most effective approach is diagnostic methods synergy. Implementation, detection and location of discharge-, vibration- and thermal-type defects are described. Several practical examples of in-field motor diagnostics have been used to illustrate the control data and repair recommendations.","PeriodicalId":379207,"journal":{"name":"8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121969461","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: 0
Novel PLL scheme for grid connection of three-phase power converters 三相电源变流器并网的新型锁相环方案
8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives Pub Date : 2011-11-01 DOI: 10.1109/DEMPED.2011.6063650
Osley Lopez Gonzalez, G. Buja
{"title":"Novel PLL scheme for grid connection of three-phase power converters","authors":"Osley Lopez Gonzalez, G. Buja","doi":"10.1109/DEMPED.2011.6063650","DOIUrl":"https://doi.org/10.1109/DEMPED.2011.6063650","url":null,"abstract":"Basic phase-locked loop (PLL) schemes used for the grid connection of three-phase static converters suffer from line voltage harmonics and unbalance. To overcome this shortcoming, the operation of the basic PLL schemes is improved by supplementing them with blocks that pre or post-processes the line voltages. This paper presents a novel improved PLL scheme that, in spite of its simplicity, offers excellent performance. The scheme is composed by two stages, namely a block, termed as StHFPSC, that rejects the harmonics and the negative-sequence component of the line voltages by processing the voltages in the stationary reference frame, and the basic PLL scheme formulated according to the instantaneous p-q power theory (pPLL). The capability of the StHFPSC block in extracting the fundamental harmonic of the positive-sequence component of the line voltages combined with the capability of the pPLL in synthesizing the grid angle give rise to a PLL scheme, termed as stationary reference frame improved pPLL (StI-pPLL), which joins the merits of the two constituent stages. After reviewing the basic and the main improved PLL schemes, the paper describes the StI-pPLL scheme. Then the scheme is tested by simulation under distorted and unbalanced grid conditions to demonstrate its effectiveness. Comparison of the results to those obtained from the pPLL scheme improved in the traditional way points out the superior performance of the novel scheme.","PeriodicalId":379207,"journal":{"name":"8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130334220","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: 13
Influence of harmonic voltage distortion on asynchronous generators 谐波电压畸变对异步发电机的影响
8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives Pub Date : 2011-11-01 DOI: 10.1109/DEMPED.2011.6063618
C. Debruyne, J. Desmet, B. Vervish, S. Derammelaere, L. Vandevelde
{"title":"Influence of harmonic voltage distortion on asynchronous generators","authors":"C. Debruyne, J. Desmet, B. Vervish, S. Derammelaere, L. Vandevelde","doi":"10.1109/DEMPED.2011.6063618","DOIUrl":"https://doi.org/10.1109/DEMPED.2011.6063618","url":null,"abstract":"Renewable and dispersed electrical generators can be divided into systems directly coupled to the grid, or systems which use power electronic converters for grid connection. A lot of generation is still done by an induction machine directly coupled to the grid, for example in micro combined heat power or small wind turbines. For asynchronous generators directly coupled to the grid, the voltage distortion can have a significant influence on the efficiency of the machine. A lot of papers discuss the influence of voltage harmonics on Induction Machines. The influence of voltage harmonics on Induction Generators is less researched. Although some research has been performed through simulation, due to difficult laboratory setup not many practical efficiency measurements have been performed on Direct On Line Induction Generators for a medium power range. This paper discusses the practical test setup and measurement results for two different 55kW Induction Generators fed by a programmable power supply. Specifically the influence of the phase angle of the harmonic on the overall efficiency is tested.","PeriodicalId":379207,"journal":{"name":"8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127476227","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: 7
A new PQ method to diagnose rotor faults in three-phase induction motors coupled to time-varying loads 时变负载下三相异步电动机转子故障的PQ诊断方法
8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives Pub Date : 2011-11-01 DOI: 10.1109/DEMPED.2011.6063596
S. Cruz, F. Gaspar
{"title":"A new PQ method to diagnose rotor faults in three-phase induction motors coupled to time-varying loads","authors":"S. Cruz, F. Gaspar","doi":"10.1109/DEMPED.2011.6063596","DOIUrl":"https://doi.org/10.1109/DEMPED.2011.6063596","url":null,"abstract":"This paper presents a new method to diagnose rotor faults in operating three-phase induction motors coupled to time-varying loads. The method relies on the simultaneous analysis of the amplitude and phase spectra of the instantaneous active and reactive powers of the motor, and allows to effectively distinguishing a true rotor fault from an oscillating load torque of low-frequency even when these two phenomena occur simultaneously. A theoretical analysis carried out using a linearized model of the induction motor in a synchronous reference frame, complemented with experimental results, confirm the validity of the proposed diagnostic approach.","PeriodicalId":379207,"journal":{"name":"8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128390811","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: 6
Improving the reliability of electrical drives through failure prognosis 通过故障预测提高电气传动的可靠性
8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives Pub Date : 2011-11-01 DOI: 10.1109/DEMPED.2011.6063620
E. Strangas, Selin Aviyente, J. Neely, S. S. H. Zaidi
{"title":"Improving the reliability of electrical drives through failure prognosis","authors":"E. Strangas, Selin Aviyente, J. Neely, S. S. H. Zaidi","doi":"10.1109/DEMPED.2011.6063620","DOIUrl":"https://doi.org/10.1109/DEMPED.2011.6063620","url":null,"abstract":"Fault diagnosis and its extension to failure prognosis aim to develop methods that will decrease the unanticipated outages and thus employ techniques to increase reliability. Among these are redundancies and change of topology, power levels and control algorithms. We show that since diagnosis methods are imperfect, false positive and false negatives as well as delayed fault diagnosis are possible and they will lead to decreased life. On the other hand, failure prognosis, especially in slowly evolving faults will lead to more accurate estimates, in-time remediation, and increased reliability. We give an example of an intermittent open circuit in one of the phases of an AC permanent magnet motor to illustrate the concept.","PeriodicalId":379207,"journal":{"name":"8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124282131","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: 17
Efficient pole-arc coefficients for maximum no load flux linkage in axial flux permanent magnet machines 轴向磁通永磁电机最大空载磁链的有效极弧系数
8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives Pub Date : 2011-11-01 DOI: 10.1109/DEMPED.2011.6063631
A. P. Ferreira, A. F. Costa
{"title":"Efficient pole-arc coefficients for maximum no load flux linkage in axial flux permanent magnet machines","authors":"A. P. Ferreira, A. F. Costa","doi":"10.1109/DEMPED.2011.6063631","DOIUrl":"https://doi.org/10.1109/DEMPED.2011.6063631","url":null,"abstract":"This paper presents a comprehensive study towards the determination of efficient pole-arc coefficients for axial flux permanent magnet (PM) machines, through investigation of the contribution of volume elements of PMs to the no load flux linkage. The proposed methodology involves the evaluation of flux linkage using a mathematical expression which integrates a function over the volume of PMs instead of the classical integration of the magnetic flux density over the coil surface. The process is implemented using 2D finite element (FE) analysis, and the results shows the pole-arc coefficients that maximize the ratio of the flux linkage over the PM volume is between 0.5 and 0.6.","PeriodicalId":379207,"journal":{"name":"8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127240804","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
A simple fault detection of induction motor by using parity equations 基于奇偶方程的异步电动机简单故障检测
8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives Pub Date : 2011-11-01 DOI: 10.1109/DEMPED.2011.6063681
M.A. Rodriguez, M. Hernández, F. Méndez, P. Sibaja, L. Hernandez
{"title":"A simple fault detection of induction motor by using parity equations","authors":"M.A. Rodriguez, M. Hernández, F. Méndez, P. Sibaja, L. Hernandez","doi":"10.1109/DEMPED.2011.6063681","DOIUrl":"https://doi.org/10.1109/DEMPED.2011.6063681","url":null,"abstract":"In this paper, a fault detection technique by using parity equations applied to an induction motor is presented. The nonlinear model of A.C. motor is matched with the lineal model of D.C. motor in synchronous reference frame in order to generate a relative large change in the residual obtained with parity equations in presence of fault, which allows the simplicity and reliability of the fault detection. The good performance of the fault detection system is validated by using a simulator software of power electronics and motor control applications (PSIM).","PeriodicalId":379207,"journal":{"name":"8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121510433","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
Pseudo-salient model of induction machine with broken rotor bars 转子断条感应电机的伪凸极模型
8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives Pub Date : 2011-11-01 DOI: 10.1109/DEMPED.2011.6063626
K. Drobnič, M. Nemec, D. Makuc, R. Fišer, V. Ambrožič
{"title":"Pseudo-salient model of induction machine with broken rotor bars","authors":"K. Drobnič, M. Nemec, D. Makuc, R. Fišer, V. Ambrožič","doi":"10.1109/DEMPED.2011.6063626","DOIUrl":"https://doi.org/10.1109/DEMPED.2011.6063626","url":null,"abstract":"In this paper, a dynamic model of a squirrel cage induction motor with broken rotor bars, is presented. The model is based on the assumption that the asymmetry due to broken bars is reflected through different resistances and inductances in a two-phase rotor model. Their joint effect is best expressed through rotor time constant. Mathematical equations, based on this premise, have been developed in rotor reference frame, thus obtaining a very simple yet effective model of the machine. Additionally, a method for measurement of both time constants of a faulty rotor at standstill is explained. Simulation results, based on this model, have been experimentally verified for healthy and faulty machine, showing very good agreement at different operational points. Finally, a study of the impact of various relationships between the parameters in both rotor axes on the behavior of the simulation model, is performed.","PeriodicalId":379207,"journal":{"name":"8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133113419","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: 9
Wound-rotor induction generator short-circuit fault classification using a new neural network based on digital data 基于数字数据的新型神经网络绕线转子感应发电机短路故障分类
8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives Pub Date : 2011-09-05 DOI: 10.1109/DEMPED.2011.6063691
Laurent Capocchi, Samuel Toma, G. Capolino, F. Fnaiech, A. Yazidi
{"title":"Wound-rotor induction generator short-circuit fault classification using a new neural network based on digital data","authors":"Laurent Capocchi, Samuel Toma, G. Capolino, F. Fnaiech, A. Yazidi","doi":"10.1109/DEMPED.2011.6063691","DOIUrl":"https://doi.org/10.1109/DEMPED.2011.6063691","url":null,"abstract":"This paper deals with a new transformation and fusion of digital input patterns used to train and test feed-forward neural network for a wound rotor three-phase induction machine winding short-circuits classification. Used input/output data have been binary coded in order to reduce the computation complexity. A new procedure, namely addition and mean of the set of same rank, has been handled to fuse binary bits to eliminate the redundancy due to the periodic character of input signals. However, this approach has a great impact on the statistical properties on the processed data in terms of richness and of statistical distribution. The proposed neural network has been trained and tested with experimental signals coming from current sensors implemented around a set-up with a prime mover and a 5.5kW wound rotor three-phase induction generator. The experimental results highlight the superiority of using this new procedure in both training and testing modes.","PeriodicalId":379207,"journal":{"name":"8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives","volume":"659 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122963007","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: 19
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