Pub Date : 2008-09-01DOI: 10.1109/ICELMACH.2008.4799934
G. Ombach, J. Junak
This paper presents a comparison of two IPM - interior permanent brushless synchronous motor structures realized with the same stator geometry with two different rotor pole numbers. First analyzed motor has got stator with double layer winding with Q=12 slots and a rotor with 2p=8 poles. Second one, has got the similar stator with Q=12 slots and a rotor with 2p=10 poles. These two motors are analyzed as candidate for a mass production in an automotive area for an electric power steering application (EPS). The important factors for an EPS applications like: torque vs speed characteristics, power density, cogging torque, torque ripple, sizing, robustness and material costs are compared.
{"title":"Comparison of double-layer interior permanent magnet synchronous motor design with two different pole numbers","authors":"G. Ombach, J. Junak","doi":"10.1109/ICELMACH.2008.4799934","DOIUrl":"https://doi.org/10.1109/ICELMACH.2008.4799934","url":null,"abstract":"This paper presents a comparison of two IPM - interior permanent brushless synchronous motor structures realized with the same stator geometry with two different rotor pole numbers. First analyzed motor has got stator with double layer winding with Q=12 slots and a rotor with 2p=8 poles. Second one, has got the similar stator with Q=12 slots and a rotor with 2p=10 poles. These two motors are analyzed as candidate for a mass production in an automotive area for an electric power steering application (EPS). The important factors for an EPS applications like: torque vs speed characteristics, power density, cogging torque, torque ripple, sizing, robustness and material costs are compared.","PeriodicalId":416125,"journal":{"name":"2008 18th International Conference on Electrical Machines","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134505585","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 : 2008-09-01DOI: 10.1109/ICELMACH.2008.4800013
Y. Chun, P. Han, Jaehoon Choi, D. Koo
The characteristics of an induction motor vary with the number of parameters and the performance relationship between the parameters also is implicit. In this article, the multiobjective optimization technique based on the genetic algorithm and sizing equation is applied for the three phase induction motor. The electromagnetic losses and the locked torque are selected for the objectives. The validity of the design results will be also clarified by comparison between calculated results and measured ones.
{"title":"Multiobjective optimization of three-phase induction motor design based on genetic algorithm","authors":"Y. Chun, P. Han, Jaehoon Choi, D. Koo","doi":"10.1109/ICELMACH.2008.4800013","DOIUrl":"https://doi.org/10.1109/ICELMACH.2008.4800013","url":null,"abstract":"The characteristics of an induction motor vary with the number of parameters and the performance relationship between the parameters also is implicit. In this article, the multiobjective optimization technique based on the genetic algorithm and sizing equation is applied for the three phase induction motor. The electromagnetic losses and the locked torque are selected for the objectives. The validity of the design results will be also clarified by comparison between calculated results and measured ones.","PeriodicalId":416125,"journal":{"name":"2008 18th International Conference on Electrical Machines","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133119400","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 : 2008-09-01DOI: 10.1109/ICELMACH.2008.4799910
T. Vandoorn, F. De Belie, T. Vyncke, J. Melkebeek, P. Lataire
Despite the effectiveness of the standstill frequency-response test or SSFR test in identifying accurate electrical machine models, it has the disadvantage of being a time consuming method. Therefore the use of a broadband signal is proposed instead of the excitation of only one frequency in the test signal and this sequentially for different signal frequencies. Furthermore, the test signals are often generated by using a waveform generator externally applied to the machine, which is not commonly available in the field. In this paper the generation of broadband test signals by using a voltage-source inverter (VSI) resulting in a multisine SSFR test is discussed. Using this multisine SSFR test the influence of saturation and cross-saturation on the q- and d-axis parameters can be swiftly evaluated.
{"title":"Generating multisinusoidal test signals by using a VSI for the identification of synchronous machines","authors":"T. Vandoorn, F. De Belie, T. Vyncke, J. Melkebeek, P. Lataire","doi":"10.1109/ICELMACH.2008.4799910","DOIUrl":"https://doi.org/10.1109/ICELMACH.2008.4799910","url":null,"abstract":"Despite the effectiveness of the standstill frequency-response test or SSFR test in identifying accurate electrical machine models, it has the disadvantage of being a time consuming method. Therefore the use of a broadband signal is proposed instead of the excitation of only one frequency in the test signal and this sequentially for different signal frequencies. Furthermore, the test signals are often generated by using a waveform generator externally applied to the machine, which is not commonly available in the field. In this paper the generation of broadband test signals by using a voltage-source inverter (VSI) resulting in a multisine SSFR test is discussed. Using this multisine SSFR test the influence of saturation and cross-saturation on the q- and d-axis parameters can be swiftly evaluated.","PeriodicalId":416125,"journal":{"name":"2008 18th International Conference on Electrical Machines","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133376689","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 : 2008-09-01DOI: 10.1109/ICELMACH.2008.4800232
F. Meier, S. Meier, J. Soulard
An educational web-based design tool for permanent-magnet synchronous machines (PMSM) is presented in this article. This tool, named Emetor, has been developed to be used in an undergraduate course on permanent-magnet machines. The technical aspects behind the tool, such as the PMSM's design procedure and the program architecture are presented. The benefits of Emetor in an educational environment are described. Different learning activities are presented to illustrate the potential of Emetor, as well as its suitability for education.
{"title":"Emetor - An educational web-based design tool for permanent-magnet synchronous machines","authors":"F. Meier, S. Meier, J. Soulard","doi":"10.1109/ICELMACH.2008.4800232","DOIUrl":"https://doi.org/10.1109/ICELMACH.2008.4800232","url":null,"abstract":"An educational web-based design tool for permanent-magnet synchronous machines (PMSM) is presented in this article. This tool, named Emetor, has been developed to be used in an undergraduate course on permanent-magnet machines. The technical aspects behind the tool, such as the PMSM's design procedure and the program architecture are presented. The benefits of Emetor in an educational environment are described. Different learning activities are presented to illustrate the potential of Emetor, as well as its suitability for education.","PeriodicalId":416125,"journal":{"name":"2008 18th International Conference on Electrical Machines","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130374581","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 : 2008-09-01DOI: 10.1109/ICELMACH.2008.4800047
D. Morinigo-Sotelo, L. García-Escudero, Ó. Duque-Pérez, M. Perez-Alonso
In this paper, we advance results of an ongoing investigation related with the detection of static and dynamic eccentricity in cage induction motors fed by frequency converter using line current spectral analysis. A statistical analysis of the results obtained with the laboratory motors for different supply conditions has been carried out. These results allow us to present some preliminary conclusions.
{"title":"Some practical aspects of eccentricity detection in induction motors for different supply conditions","authors":"D. Morinigo-Sotelo, L. García-Escudero, Ó. Duque-Pérez, M. Perez-Alonso","doi":"10.1109/ICELMACH.2008.4800047","DOIUrl":"https://doi.org/10.1109/ICELMACH.2008.4800047","url":null,"abstract":"In this paper, we advance results of an ongoing investigation related with the detection of static and dynamic eccentricity in cage induction motors fed by frequency converter using line current spectral analysis. A statistical analysis of the results obtained with the laboratory motors for different supply conditions has been carried out. These results allow us to present some preliminary conclusions.","PeriodicalId":416125,"journal":{"name":"2008 18th International Conference on Electrical Machines","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125553675","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 : 2008-09-01DOI: 10.1109/ICELMACH.2008.4800035
T. Yano
A novel stepping motor principle based on a pair of polyhedrons are proposed. At first, I will show the goal of my study and the design concept of high torque spherical motor. Next, the principle of the conventional stepping motor is reviewed. Then, I will explain how to expand the principle of the conventional stepping motor to the three dimensional space with an example of a regular hexahedron and a regular octahedron based spherical stepping motor. Some polyhedrons are introduced for the candidates of making the polyhedron based spherical stepping motors. The proposed spherical stepping motors will be wide working area and high-torque.
{"title":"Development of a high torque spherical motor (2nd Report: Proposal of a hexahedron-octahedron based spherical stepping motor)","authors":"T. Yano","doi":"10.1109/ICELMACH.2008.4800035","DOIUrl":"https://doi.org/10.1109/ICELMACH.2008.4800035","url":null,"abstract":"A novel stepping motor principle based on a pair of polyhedrons are proposed. At first, I will show the goal of my study and the design concept of high torque spherical motor. Next, the principle of the conventional stepping motor is reviewed. Then, I will explain how to expand the principle of the conventional stepping motor to the three dimensional space with an example of a regular hexahedron and a regular octahedron based spherical stepping motor. Some polyhedrons are introduced for the candidates of making the polyhedron based spherical stepping motors. The proposed spherical stepping motors will be wide working area and high-torque.","PeriodicalId":416125,"journal":{"name":"2008 18th International Conference on Electrical Machines","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125614086","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 : 2008-09-01DOI: 10.1109/ICELMACH.2008.4800177
P. Rovolis, G. Loizos, A. Kladas, J. Tegopoulos
The paper presents a methodology for determination of harmonic iron losses in laminated iron cores under sinusoidal excitation for various frequencies and sinusoidal pulse width modulated voltage excitations. The method is based on measurements performed by using a convenient Epstein device supplied by a sinusoidal and a SPWM source, which are stored and processed in a PC by using an appropriate data acquisition card. It is shown that calculation of iron losses due harmonics cannot be performed by applying summation of harmonic components.
{"title":"Laminated iron core losses variation with frequency and under SPWM excitation","authors":"P. Rovolis, G. Loizos, A. Kladas, J. Tegopoulos","doi":"10.1109/ICELMACH.2008.4800177","DOIUrl":"https://doi.org/10.1109/ICELMACH.2008.4800177","url":null,"abstract":"The paper presents a methodology for determination of harmonic iron losses in laminated iron cores under sinusoidal excitation for various frequencies and sinusoidal pulse width modulated voltage excitations. The method is based on measurements performed by using a convenient Epstein device supplied by a sinusoidal and a SPWM source, which are stored and processed in a PC by using an appropriate data acquisition card. It is shown that calculation of iron losses due harmonics cannot be performed by applying summation of harmonic components.","PeriodicalId":416125,"journal":{"name":"2008 18th International Conference on Electrical Machines","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115802684","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 : 2008-09-01DOI: 10.1109/ICELMACH.2008.4799996
M. Kamper, A. Rix, Dominic A. Wills, Rong-Jie Wang
The layouts, formulation and winding factors of iron-and air-cored non-overlap winding permanent magnet machines are considered in this paper. The winding formulation gives information about the use of negative periodical boundary conditions in the finite element analysis. Particular attention is given to air-cored non-overlap windings, with entirely different results regarding optimal slot-pole combinations.
{"title":"Formulation, finite-element modeling and winding factors of non-overlap winding permanent magnet machines","authors":"M. Kamper, A. Rix, Dominic A. Wills, Rong-Jie Wang","doi":"10.1109/ICELMACH.2008.4799996","DOIUrl":"https://doi.org/10.1109/ICELMACH.2008.4799996","url":null,"abstract":"The layouts, formulation and winding factors of iron-and air-cored non-overlap winding permanent magnet machines are considered in this paper. The winding formulation gives information about the use of negative periodical boundary conditions in the finite element analysis. Particular attention is given to air-cored non-overlap windings, with entirely different results regarding optimal slot-pole combinations.","PeriodicalId":416125,"journal":{"name":"2008 18th International Conference on Electrical Machines","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124646157","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 : 2008-09-01DOI: 10.1109/ICELMACH.2008.4800220
S. Hossain, P. Reis
With the increase in power dissipation requirements from electronic devices, thermal management becomes a significant constraint for the inverter design. Square wave current generation, using only one current sensor in the dc bus link, is a low cost and reliable current control strategy for brushless dc motor drives. This paper analyzes and compares various different commutation techniques and the associated power losses in the inverter. Relative effects of various commutation techniques on the inverter power loss have been analyzed. Computer simulation and experiments with a 500 W motor-inverter system have been performed to compare the thermal performance of the inverter under different commutation techniques.
{"title":"Effect of BLDC motor commutation schemes on inverter power loss","authors":"S. Hossain, P. Reis","doi":"10.1109/ICELMACH.2008.4800220","DOIUrl":"https://doi.org/10.1109/ICELMACH.2008.4800220","url":null,"abstract":"With the increase in power dissipation requirements from electronic devices, thermal management becomes a significant constraint for the inverter design. Square wave current generation, using only one current sensor in the dc bus link, is a low cost and reliable current control strategy for brushless dc motor drives. This paper analyzes and compares various different commutation techniques and the associated power losses in the inverter. Relative effects of various commutation techniques on the inverter power loss have been analyzed. Computer simulation and experiments with a 500 W motor-inverter system have been performed to compare the thermal performance of the inverter under different commutation techniques.","PeriodicalId":416125,"journal":{"name":"2008 18th International Conference on Electrical Machines","volume":"33 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132393665","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 : 2008-09-01DOI: 10.1109/ICELMACH.2008.4800058
M. Humer, R. Vogel, S. Kulig
The following paper focuses on generator end winding vibrations. Monitoring systems have been developed for measuring them however sensible methods for analysis have not been found yet. A reduced end winding model and modal analysis of it are further described. The resulting analytical modal representation of vibration is used to evaluate a method for interpolation the spatial end winding vibration. Finally an application of this method is demonstrated.
{"title":"Monitoring of generator end winding vibrations","authors":"M. Humer, R. Vogel, S. Kulig","doi":"10.1109/ICELMACH.2008.4800058","DOIUrl":"https://doi.org/10.1109/ICELMACH.2008.4800058","url":null,"abstract":"The following paper focuses on generator end winding vibrations. Monitoring systems have been developed for measuring them however sensible methods for analysis have not been found yet. A reduced end winding model and modal analysis of it are further described. The resulting analytical modal representation of vibration is used to evaluate a method for interpolation the spatial end winding vibration. Finally an application of this method is demonstrated.","PeriodicalId":416125,"journal":{"name":"2008 18th International Conference on Electrical Machines","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134535134","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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