Pub Date : 2013-10-24DOI: 10.1109/DEMPED.2013.6645757
M. Moghadasian, A. Sivert, A. Yazidi, F. Betin, G. Capolino
This paper introduces a new technique for efficiency optimization of 6-phase induction motor (6PIM) drive, based on fuzzy online search control (SC) method. The modified SC algorithm does not require extra hardware and is insensitive to motor parameters. The results are compared to classic loss model control (LMC) efficiency optimization algorithm in healthy and faulted operational mode due to up to three stator open phases. The experimental results obtained on a dedicated test-bed validate the efficiency of the proposed method.
{"title":"Efficiency optimization on vector controlled six-phase induction motor in healthy and faulted mode","authors":"M. Moghadasian, A. Sivert, A. Yazidi, F. Betin, G. Capolino","doi":"10.1109/DEMPED.2013.6645757","DOIUrl":"https://doi.org/10.1109/DEMPED.2013.6645757","url":null,"abstract":"This paper introduces a new technique for efficiency optimization of 6-phase induction motor (6PIM) drive, based on fuzzy online search control (SC) method. The modified SC algorithm does not require extra hardware and is insensitive to motor parameters. The results are compared to classic loss model control (LMC) efficiency optimization algorithm in healthy and faulted operational mode due to up to three stator open phases. The experimental results obtained on a dedicated test-bed validate the efficiency of the proposed method.","PeriodicalId":425644,"journal":{"name":"2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116520084","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}
Pub Date : 2013-10-24DOI: 10.1109/DEMPED.2013.6645721
G. Stojcic, T. Wolbank
The wiring system between inverter and the machine consists of different parts connected by metal-to-metal joints. High load currents lead to an increase temperature of the connections and higher material degradation. Basically, these effects result in an increased resistance in one phase. If such faults are not identified timely an unexpected outage of the whole system can be a consequence. However, the degree of reliability of the wiring system should not be less than that of the machine or inverter. Detecting such small resistance incensement provide the possibility to react timely on the occurred fault. In this paper a method is presented to detect open-circuit faults in the stator windings of an inverter fed drive. The method gets along with the hardware already present and doesn't need additional sensors etc. By applying voltage phasor steps to the machine terminals and measuring the resulting current the phase resistance can be estimated. By combination of the current direction with the phase resistance value resistance phasors can introduced. With these phasors a high sensitive fault indicator is generated able to detect connection fault severity and position. Measurements on a laboratory test stand for different fault configurations prove the applicability and accuracy of the proposed method.
{"title":"Detecting high-resistance connection asymmetries in inverter fed AC drive systems","authors":"G. Stojcic, T. Wolbank","doi":"10.1109/DEMPED.2013.6645721","DOIUrl":"https://doi.org/10.1109/DEMPED.2013.6645721","url":null,"abstract":"The wiring system between inverter and the machine consists of different parts connected by metal-to-metal joints. High load currents lead to an increase temperature of the connections and higher material degradation. Basically, these effects result in an increased resistance in one phase. If such faults are not identified timely an unexpected outage of the whole system can be a consequence. However, the degree of reliability of the wiring system should not be less than that of the machine or inverter. Detecting such small resistance incensement provide the possibility to react timely on the occurred fault. In this paper a method is presented to detect open-circuit faults in the stator windings of an inverter fed drive. The method gets along with the hardware already present and doesn't need additional sensors etc. By applying voltage phasor steps to the machine terminals and measuring the resulting current the phase resistance can be estimated. By combination of the current direction with the phase resistance value resistance phasors can introduced. With these phasors a high sensitive fault indicator is generated able to detect connection fault severity and position. Measurements on a laboratory test stand for different fault configurations prove the applicability and accuracy of the proposed method.","PeriodicalId":425644,"journal":{"name":"2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125025472","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}
Pub Date : 2013-10-24DOI: 10.1109/DEMPED.2013.6645705
J. Pons-Llinares, J. Antonino-Daviu, M. Riera-Guasp, S. Lee, Tae-June Kang, C. Yang
Transient-based diagnosis of electromechanical failures in induction motors has gained an increasing attention over recent years. The diagnostic in some specific situations (presence of load toque oscillations, light loading conditions) or of specific failures may be difficult when using the classical MCSA approach. In this context, the transient-based methodologies have been proven to become valuable informational sources for the diagnosis, either confirming the MCSA results or avoiding its possible false positives. The application of these transient methodologies requires the use of modern signal processing tools that are in continuous evolution. This work proposes the application of an advanced tool; the recently developed Adaptive Slope Transform. The paper compares the performance of this continuous transform and that of a discrete counterpart, the Discrete Wavelet Transform, when applied to different controversial fault cases in which the classical MCSA may not lead to correct results: outer bar breakages in double cage motors and motors with rotor axial duct influence. The results show the potential of the continuous transforms for the transient tracking of high-order fault-related components as well as for the improved discrimination between fault components.
{"title":"Use of discrete and optimized continuous TFD tools for transient-based diagnosis in controversial fault cases","authors":"J. Pons-Llinares, J. Antonino-Daviu, M. Riera-Guasp, S. Lee, Tae-June Kang, C. Yang","doi":"10.1109/DEMPED.2013.6645705","DOIUrl":"https://doi.org/10.1109/DEMPED.2013.6645705","url":null,"abstract":"Transient-based diagnosis of electromechanical failures in induction motors has gained an increasing attention over recent years. The diagnostic in some specific situations (presence of load toque oscillations, light loading conditions) or of specific failures may be difficult when using the classical MCSA approach. In this context, the transient-based methodologies have been proven to become valuable informational sources for the diagnosis, either confirming the MCSA results or avoiding its possible false positives. The application of these transient methodologies requires the use of modern signal processing tools that are in continuous evolution. This work proposes the application of an advanced tool; the recently developed Adaptive Slope Transform. The paper compares the performance of this continuous transform and that of a discrete counterpart, the Discrete Wavelet Transform, when applied to different controversial fault cases in which the classical MCSA may not lead to correct results: outer bar breakages in double cage motors and motors with rotor axial duct influence. The results show the potential of the continuous transforms for the transient tracking of high-order fault-related components as well as for the improved discrimination between fault components.","PeriodicalId":425644,"journal":{"name":"2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116969428","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}
Pub Date : 2013-10-24DOI: 10.1109/DEMPED.2013.6645713
D. Zurita, M. Delgado, J. Ortega, L. Romeral
The development of intelligent and autonomous monitoring systems applied to rotating machinery, represents the evolution towards the automatic industrial plants supervision. In this regard, an acoustic emission based intelligent sensor is presented in this work. The proposed sensor records regularly the acoustic emission signal generated by gearboxes. A time domain statistical analysis is applied in order to characterize the acquired data. Afterwards, a neural network based algorithm is applied to detect gear fault patterns. Finally, the diagnosis result is sent through a wireless transceiver to the central control unit. Moreover, in order to reach a real autonomous operation, the sensor power is approached by different energy harvesting solutions.
{"title":"Intelligent sensor based on acoustic emission analysis applied to gear fault diagnosis","authors":"D. Zurita, M. Delgado, J. Ortega, L. Romeral","doi":"10.1109/DEMPED.2013.6645713","DOIUrl":"https://doi.org/10.1109/DEMPED.2013.6645713","url":null,"abstract":"The development of intelligent and autonomous monitoring systems applied to rotating machinery, represents the evolution towards the automatic industrial plants supervision. In this regard, an acoustic emission based intelligent sensor is presented in this work. The proposed sensor records regularly the acoustic emission signal generated by gearboxes. A time domain statistical analysis is applied in order to characterize the acquired data. Afterwards, a neural network based algorithm is applied to detect gear fault patterns. Finally, the diagnosis result is sent through a wireless transceiver to the central control unit. Moreover, in order to reach a real autonomous operation, the sensor power is approached by different energy harvesting solutions.","PeriodicalId":425644,"journal":{"name":"2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121960118","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}
Pub Date : 2013-10-24DOI: 10.1109/DEMPED.2013.6645735
Pu Shi, Zheng Chen, Y. Vagapov, Z. Zouaoui
This paper introduces a novel method for motor fault detection under varying load conditions. Model based induction machine broken rotor-bar fault performances are discussed. Winding function approach (WFA) based mathematical model is developed to provide indication information regarding motor parameter evolution under the influence of load level and fault severity. Through further analysis the motor parameters evolution, broken rotor-bar fault detection indexes are developed. Moreover, these indexes can assess rotor fault severity based on stator current and rotor speed. Stator current and rotor speed are used to demonstrate correlations between these parameters and broken rotor bar severity. Simulations and experimental results confirm the validity and effectiveness of the proposed approach.
{"title":"Winding function approach for induction machine fault detection","authors":"Pu Shi, Zheng Chen, Y. Vagapov, Z. Zouaoui","doi":"10.1109/DEMPED.2013.6645735","DOIUrl":"https://doi.org/10.1109/DEMPED.2013.6645735","url":null,"abstract":"This paper introduces a novel method for motor fault detection under varying load conditions. Model based induction machine broken rotor-bar fault performances are discussed. Winding function approach (WFA) based mathematical model is developed to provide indication information regarding motor parameter evolution under the influence of load level and fault severity. Through further analysis the motor parameters evolution, broken rotor-bar fault detection indexes are developed. Moreover, these indexes can assess rotor fault severity based on stator current and rotor speed. Stator current and rotor speed are used to demonstrate correlations between these parameters and broken rotor bar severity. Simulations and experimental results confirm the validity and effectiveness of the proposed approach.","PeriodicalId":425644,"journal":{"name":"2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124001163","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}
Pub Date : 2013-10-24DOI: 10.1109/DEMPED.2013.6645751
A. Majid, J. Saleem, F. Alam, K. Bertilsson
The higher switching frequency in combination with di/dt loops and dv/dt nodes in the power stages of high frequency power converters generates higher order harmonics which cause Electro Magnetic Interference (EMI). It is commonly perceived that high frequency converters are more vulnerable to radiated EMI, thus, it is very important to analyze the radiated emission of these converters. According to the author's knowledge, the analysis of the radiated emission of power converters switching in the MHz frequency region has not been presented until now. Therefore, in this paper, the measurements, and analysis of the near field radiated emissions of these emerging power converters is presented. These measurements are beneficial in the early design stage of power converters. Both E-field and H-field and captured and analyzed for a half bridge converter switching at 3 MHz and at the output power level of 25 W. The effects of the magnetic and electric field emissions with the addition of a Y-capacitor and secondary side common mode choke are analyzed.
{"title":"Analysis of radiated EMI for power converters switching in MHz frequency range","authors":"A. Majid, J. Saleem, F. Alam, K. Bertilsson","doi":"10.1109/DEMPED.2013.6645751","DOIUrl":"https://doi.org/10.1109/DEMPED.2013.6645751","url":null,"abstract":"The higher switching frequency in combination with di/dt loops and dv/dt nodes in the power stages of high frequency power converters generates higher order harmonics which cause Electro Magnetic Interference (EMI). It is commonly perceived that high frequency converters are more vulnerable to radiated EMI, thus, it is very important to analyze the radiated emission of these converters. According to the author's knowledge, the analysis of the radiated emission of power converters switching in the MHz frequency region has not been presented until now. Therefore, in this paper, the measurements, and analysis of the near field radiated emissions of these emerging power converters is presented. These measurements are beneficial in the early design stage of power converters. Both E-field and H-field and captured and analyzed for a half bridge converter switching at 3 MHz and at the output power level of 25 W. The effects of the magnetic and electric field emissions with the addition of a Y-capacitor and secondary side common mode choke are analyzed.","PeriodicalId":425644,"journal":{"name":"2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131574900","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}
Pub Date : 2013-10-24DOI: 10.1109/DEMPED.2013.6645724
N. Freire, A. Cardoso
This paper presents a fault-tolerant converter intended for AC regenerative drives requiring improved reliability and availability. The standard six-switch three-phase converter is rearranged in order to obtain a four-switch tree-phase converter (FSTPC) during post-fault operation. Thus, its performance relies heavily on the fault diagnostic technique to trigger the remedial procedures, and on the control strategy to guarantee proper post-fault operation of the drive. With the aim to achieve these two goals effectively without increasing significantly the control system complexity, it is proposed to integrate, into the drive controller, a new and simple voltage-based approach for open-circuit fault diagnosis (without additional sensors), and vector-based hysteresis current control of the FSTPC. The performance of proposed fault-tolerant converter is evaluated by means of experimental results with a permanent magnet synchronous machine (PMSM) drive.
{"title":"Fault-tolerant converter for AC drives using vector-based hysteresis current control","authors":"N. Freire, A. Cardoso","doi":"10.1109/DEMPED.2013.6645724","DOIUrl":"https://doi.org/10.1109/DEMPED.2013.6645724","url":null,"abstract":"This paper presents a fault-tolerant converter intended for AC regenerative drives requiring improved reliability and availability. The standard six-switch three-phase converter is rearranged in order to obtain a four-switch tree-phase converter (FSTPC) during post-fault operation. Thus, its performance relies heavily on the fault diagnostic technique to trigger the remedial procedures, and on the control strategy to guarantee proper post-fault operation of the drive. With the aim to achieve these two goals effectively without increasing significantly the control system complexity, it is proposed to integrate, into the drive controller, a new and simple voltage-based approach for open-circuit fault diagnosis (without additional sensors), and vector-based hysteresis current control of the FSTPC. The performance of proposed fault-tolerant converter is evaluated by means of experimental results with a permanent magnet synchronous machine (PMSM) drive.","PeriodicalId":425644,"journal":{"name":"2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134021255","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}
Pub Date : 2013-10-24DOI: 10.1109/DEMPED.2013.6645709
V. Ambrožič, R. Fišer, M. Nemec, K. Drobnič
This paper presents a control model of squirrel cage induction machine with broken rotor bars. The basis for model's equations is the fact that this type of faults inevitably alters the rotor parameters. Both the resistance and inductance take a sinusoidal shape, being a function of rotor angle, almost regardless of the configuration of fault. Differing from previous work, in this paper a model has been developed in rotor field coordinates, being this the preferable reference frame for machine control and thus easier for control engineers to grasp, especially in closed-looped systems. The approach has been tested on laboratory models of two different induction machines connected to the grid with completely different severities of faults. The results show a very good agreement between measurements and simulations.
{"title":"Dynamic model of induction machine with faulty rotor in field reference frame","authors":"V. Ambrožič, R. Fišer, M. Nemec, K. Drobnič","doi":"10.1109/DEMPED.2013.6645709","DOIUrl":"https://doi.org/10.1109/DEMPED.2013.6645709","url":null,"abstract":"This paper presents a control model of squirrel cage induction machine with broken rotor bars. The basis for model's equations is the fact that this type of faults inevitably alters the rotor parameters. Both the resistance and inductance take a sinusoidal shape, being a function of rotor angle, almost regardless of the configuration of fault. Differing from previous work, in this paper a model has been developed in rotor field coordinates, being this the preferable reference frame for machine control and thus easier for control engineers to grasp, especially in closed-looped systems. The approach has been tested on laboratory models of two different induction machines connected to the grid with completely different severities of faults. The results show a very good agreement between measurements and simulations.","PeriodicalId":425644,"journal":{"name":"2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134629063","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}
Pub Date : 2013-10-24DOI: 10.1109/DEMPED.2013.6645750
S. Hamdani, O. Touhami, R. Ibtiouen, M. Hasni
An analytical procedure for computing the inductances of an induction machine in presence of dynamic eccentricity fault is presented. The proposed method is based on the modified winding function approach and takes into consideration harmonics in the winding and the inverse air-gap functions. Results obtained by the analytical method are compared to these calculated by finite elements (FE) method and satisfactory match was found between them. Also, the developed equations allow a considerable saving of computing time compared to the finite element method, in particular when they are considered in the dynamic simulation of the induction machine.
{"title":"Analytical evaluation of inductances for induction machine with dynamic eccentricity using MWFA and FE methods","authors":"S. Hamdani, O. Touhami, R. Ibtiouen, M. Hasni","doi":"10.1109/DEMPED.2013.6645750","DOIUrl":"https://doi.org/10.1109/DEMPED.2013.6645750","url":null,"abstract":"An analytical procedure for computing the inductances of an induction machine in presence of dynamic eccentricity fault is presented. The proposed method is based on the modified winding function approach and takes into consideration harmonics in the winding and the inverse air-gap functions. Results obtained by the analytical method are compared to these calculated by finite elements (FE) method and satisfactory match was found between them. Also, the developed equations allow a considerable saving of computing time compared to the finite element method, in particular when they are considered in the dynamic simulation of the induction machine.","PeriodicalId":425644,"journal":{"name":"2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132529061","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}
Pub Date : 2013-10-24DOI: 10.1109/DEMPED.2013.6645697
Y. Gritli, M. Mengoni, C. Rossi, F. Filippetti, D. Casadei
This paper presents a new diagnosis approach for quantitative rotor faults evaluation in three-phase wound rotor induction machines. In the considered application, the rotor windings are supplied by a static converter for the control of active and reactive power flows exchanged between the machine and the electrical grid. Under speed or fault-varying conditions, the typical rotor fault frequency components, which appear in rotor voltages, are spread in a bandwidth proportional to the speed which complicates its detectability. The proposed diagnosis approach is based on the use of wavelet analysis improved by a pre-processing of the rotor voltage commands. Thus, the time evolution of fault components can be effectively analyzed. Experimental results show the validity of the proposed method under speed and intermittent fault varying conditions, leading to an effective diagnosis procedure for rotor electrical faults in wound rotor induction machines.
{"title":"New quantitative rotor fault evaluation in wound rotor induction machine drives under time-varying conditions","authors":"Y. Gritli, M. Mengoni, C. Rossi, F. Filippetti, D. Casadei","doi":"10.1109/DEMPED.2013.6645697","DOIUrl":"https://doi.org/10.1109/DEMPED.2013.6645697","url":null,"abstract":"This paper presents a new diagnosis approach for quantitative rotor faults evaluation in three-phase wound rotor induction machines. In the considered application, the rotor windings are supplied by a static converter for the control of active and reactive power flows exchanged between the machine and the electrical grid. Under speed or fault-varying conditions, the typical rotor fault frequency components, which appear in rotor voltages, are spread in a bandwidth proportional to the speed which complicates its detectability. The proposed diagnosis approach is based on the use of wavelet analysis improved by a pre-processing of the rotor voltage commands. Thus, the time evolution of fault components can be effectively analyzed. Experimental results show the validity of the proposed method under speed and intermittent fault varying conditions, leading to an effective diagnosis procedure for rotor electrical faults in wound rotor induction machines.","PeriodicalId":425644,"journal":{"name":"2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124861862","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}
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