Pub Date : 2016-11-01DOI: 10.1109/EDPC.2016.7851311
T. Kolb, F. Huber, Basri Akbulut, Christoph Donocik, N. Urban, Dominik Maurer, J. Franke
Concerning rare-earth materials additive techniques like hollow cathode discharging or magnetron sputtering have been used to produce thin films, e.g. for the application in microelectromechanical systems (MEMS). In this paper our investigations in additively processing NdFeB-powder materials by means of laser beam melting in a powder bed (LBM) in order to produce macroscopic, three-dimensional specimens are presented. In this context we explain the advantages of additively manufactured magnets in comparison to conventional production methods. Furthermore different rare-earth-material powders were characterized with respect to their suitability for the LBM process. We describe a melting or sintering of the material at varying process parameters to obtain test cubes. Those specimens were magnetized and their magnetic field was analyzed. Additionally the density and microstructure of the samples was investigated. Subsequently we conclude this paper by presenting future steps of our research.
{"title":"Laser Beam Melting of NdFeB for the production of rare-earth magnets","authors":"T. Kolb, F. Huber, Basri Akbulut, Christoph Donocik, N. Urban, Dominik Maurer, J. Franke","doi":"10.1109/EDPC.2016.7851311","DOIUrl":"https://doi.org/10.1109/EDPC.2016.7851311","url":null,"abstract":"Concerning rare-earth materials additive techniques like hollow cathode discharging or magnetron sputtering have been used to produce thin films, e.g. for the application in microelectromechanical systems (MEMS). In this paper our investigations in additively processing NdFeB-powder materials by means of laser beam melting in a powder bed (LBM) in order to produce macroscopic, three-dimensional specimens are presented. In this context we explain the advantages of additively manufactured magnets in comparison to conventional production methods. Furthermore different rare-earth-material powders were characterized with respect to their suitability for the LBM process. We describe a melting or sintering of the material at varying process parameters to obtain test cubes. Those specimens were magnetized and their magnetic field was analyzed. Additionally the density and microstructure of the samples was investigated. Subsequently we conclude this paper by presenting future steps of our research.","PeriodicalId":121418,"journal":{"name":"2016 6th International Electric Drives Production Conference (EDPC)","volume":"618 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121031289","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 : 2016-11-01DOI: 10.1109/EDPC.2016.7851323
A. Damiano, Andrea Floris, G. Fois, M. Porru, A. Serpi
An analytical procedure for designing mechanical sleeves in surface-mounted High-Speed Permanent Magnet Synchronous Machines (HS-PMSMs) is presented in this paper. It is based on the theory of elastic mechanics and enables the computation of contact pressures between rotor layers (shaft, back-iron, permanent magnets and sleeve) and the Von Mises equivalent stress. The proposed procedure can be combined with the electromagnetic machine analysis, leading to fast and effective HS-PMSM design. This can be accomplished in accordance with different Permanent Magnets (PMs) and/or sleeve materials. Particularly, NdFeB and Ferrite-based PMs are alternatively considered, as well as the employment of Titanium and Carbon-Fiber as sleeve materials. The proposed approach is validated through Finite Element Analysis (FEA), which regards four different HS-PMSM configurations characterized by the same rated power and speed.
{"title":"Modelling and design of PM retention sleeves for High-Speed PM Synchronous Machines","authors":"A. Damiano, Andrea Floris, G. Fois, M. Porru, A. Serpi","doi":"10.1109/EDPC.2016.7851323","DOIUrl":"https://doi.org/10.1109/EDPC.2016.7851323","url":null,"abstract":"An analytical procedure for designing mechanical sleeves in surface-mounted High-Speed Permanent Magnet Synchronous Machines (HS-PMSMs) is presented in this paper. It is based on the theory of elastic mechanics and enables the computation of contact pressures between rotor layers (shaft, back-iron, permanent magnets and sleeve) and the Von Mises equivalent stress. The proposed procedure can be combined with the electromagnetic machine analysis, leading to fast and effective HS-PMSM design. This can be accomplished in accordance with different Permanent Magnets (PMs) and/or sleeve materials. Particularly, NdFeB and Ferrite-based PMs are alternatively considered, as well as the employment of Titanium and Carbon-Fiber as sleeve materials. The proposed approach is validated through Finite Element Analysis (FEA), which regards four different HS-PMSM configurations characterized by the same rated power and speed.","PeriodicalId":121418,"journal":{"name":"2016 6th International Electric Drives Production Conference (EDPC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129438141","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 : 2016-11-01DOI: 10.1109/EDPC.2016.7851315
W. Hauser, M. Albach
In this paper the high frequency dimensional effects in toroid cores made of soft ferrite are examined. An analytical method is used in which the field distribution is calculated by means of separation of variables. Based on the results, the influence of permittivity and conductivity of the core material on the flux distribution is discussed. The calculated results are compared with measured data to validate the model. Finally a method to reduce the influence of the dimensional effects is shown.
{"title":"Analytic model of structural effects in toroid cores with rectangular cross section","authors":"W. Hauser, M. Albach","doi":"10.1109/EDPC.2016.7851315","DOIUrl":"https://doi.org/10.1109/EDPC.2016.7851315","url":null,"abstract":"In this paper the high frequency dimensional effects in toroid cores made of soft ferrite are examined. An analytical method is used in which the field distribution is calculated by means of separation of variables. Based on the results, the influence of permittivity and conductivity of the core material on the flux distribution is discussed. The calculated results are compared with measured data to validate the model. Finally a method to reduce the influence of the dimensional effects is shown.","PeriodicalId":121418,"journal":{"name":"2016 6th International Electric Drives Production Conference (EDPC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124039855","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 : 2016-11-01DOI: 10.1109/EDPC.2016.7851335
A. Neubauer, Karl-Martin Fritsch, A. Elsässer
Substituting neodymium with ferrite based magnets comes with the penalty of significant reduced magnetic field energy. Several possibilities to compensate for the negative effects of a lower remanence and coercivity provided by ferrite magnets are presented and finally combined into the development of a new kind of BLDC-machine design. The new design is compared to a conventional machine on the application example of an electric 800 W/48 V automotive coolant pump.
{"title":"Optimized electromagnetic and manufacturing design for a BLDC-motor substituting rare earth magnets","authors":"A. Neubauer, Karl-Martin Fritsch, A. Elsässer","doi":"10.1109/EDPC.2016.7851335","DOIUrl":"https://doi.org/10.1109/EDPC.2016.7851335","url":null,"abstract":"Substituting neodymium with ferrite based magnets comes with the penalty of significant reduced magnetic field energy. Several possibilities to compensate for the negative effects of a lower remanence and coercivity provided by ferrite magnets are presented and finally combined into the development of a new kind of BLDC-machine design. The new design is compared to a conventional machine on the application example of an electric 800 W/48 V automotive coolant pump.","PeriodicalId":121418,"journal":{"name":"2016 6th International Electric Drives Production Conference (EDPC)","volume":"310 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132525898","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 : 2016-11-01DOI: 10.1109/EDPC.2016.7851314
Hans Fleischmann, S. Spreng, Johannes Kohl, Dominik Kißkalt, J. Franke
In industrial manufacturing, high system availability is the most effective lever for increasing productivity. For minimal downtimes, it is important to identify sources of errors at an early stage in order to perform scheduled maintenance. Especially in the field of electric drives manufacturing, the thermo-crimping process is one major technology to join insulated copper wires with belonging current carrying parts. However, due to its operating principle, this technology has to be associated with strong disadvantages. Primarily, the excessive tool abrasion leads to immoderate, difficult to plan maintenance operations. In order to address these challenges, this paper introduces a generic condition monitoring system, which is the enabler for predictive maintenance and online product quality monitoring in this area. By recognizing variations in energy consumption and process temperature, it is possible to determine the wear margin of electrodes and the joint quality during operation. According to the Industrial Internet of Things (IIoT), the implementation relies on the communication standard Open Platform Communications Unified Architecture (OPC UA). Finally, verification and validation are performed in a case study.
{"title":"Distributed condition monitoring systems in electric drives manufacturing","authors":"Hans Fleischmann, S. Spreng, Johannes Kohl, Dominik Kißkalt, J. Franke","doi":"10.1109/EDPC.2016.7851314","DOIUrl":"https://doi.org/10.1109/EDPC.2016.7851314","url":null,"abstract":"In industrial manufacturing, high system availability is the most effective lever for increasing productivity. For minimal downtimes, it is important to identify sources of errors at an early stage in order to perform scheduled maintenance. Especially in the field of electric drives manufacturing, the thermo-crimping process is one major technology to join insulated copper wires with belonging current carrying parts. However, due to its operating principle, this technology has to be associated with strong disadvantages. Primarily, the excessive tool abrasion leads to immoderate, difficult to plan maintenance operations. In order to address these challenges, this paper introduces a generic condition monitoring system, which is the enabler for predictive maintenance and online product quality monitoring in this area. By recognizing variations in energy consumption and process temperature, it is possible to determine the wear margin of electrodes and the joint quality during operation. According to the Industrial Internet of Things (IIoT), the implementation relies on the communication standard Open Platform Communications Unified Architecture (OPC UA). Finally, verification and validation are performed in a case study.","PeriodicalId":121418,"journal":{"name":"2016 6th International Electric Drives Production Conference (EDPC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134355278","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 : 2016-11-01DOI: 10.1109/EDPC.2016.7851330
B. Hofmann, B. Bickel, P.A.B. Bräuer, M. Leder, J. Franke
Power density is a crucial requirement factor regarding high power traction drives for automotive application. As battery capacity is one of the most limiting factors regarding range of current electric vehicles, output efficiency in relation to package size is one of several levers to extend existing limitations. Within electric drives, efficiency is linked to the copper mass being implemented into the active components. The presented paper evaluates the possibility of expanding copper fill factor by the use of higher grade - and thus thinner - electric insulation materials. By using powder coatings with breakdown voltages superior to existing NMN and NKN laminates usually used as groundwall insulation system in electric drives, insulation layers can be reduced in size leaving more room for magnet wires. With regard to existing stator layouts and topologies, multiple slot cross sections are evaluated. Results show an increase of the electric copper fill factor by up to 13%, which leads to higher output or the possibility to reduce package size and mass without sacrificing output power.
{"title":"Theoretical benefits of powder-coating based insulation layers regarding copper fill factor in electric drives","authors":"B. Hofmann, B. Bickel, P.A.B. Bräuer, M. Leder, J. Franke","doi":"10.1109/EDPC.2016.7851330","DOIUrl":"https://doi.org/10.1109/EDPC.2016.7851330","url":null,"abstract":"Power density is a crucial requirement factor regarding high power traction drives for automotive application. As battery capacity is one of the most limiting factors regarding range of current electric vehicles, output efficiency in relation to package size is one of several levers to extend existing limitations. Within electric drives, efficiency is linked to the copper mass being implemented into the active components. The presented paper evaluates the possibility of expanding copper fill factor by the use of higher grade - and thus thinner - electric insulation materials. By using powder coatings with breakdown voltages superior to existing NMN and NKN laminates usually used as groundwall insulation system in electric drives, insulation layers can be reduced in size leaving more room for magnet wires. With regard to existing stator layouts and topologies, multiple slot cross sections are evaluated. Results show an increase of the electric copper fill factor by up to 13%, which leads to higher output or the possibility to reduce package size and mass without sacrificing output power.","PeriodicalId":121418,"journal":{"name":"2016 6th International Electric Drives Production Conference (EDPC)","volume":"323 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115914923","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 : 2016-11-01DOI: 10.1109/EDPC.2016.7851310
B. Hofmann, M. Masuch, P. Kümmeth, J. Franke, P. Frey, M. Merklein
The manufacturing of electric drives is still time- and cost-intensive. In order to reduce processing time balancing is identified as one of the processes with a high potential for innovation. In contrast to most research efforts, the presented paper follows the approach of concentrating on the impact of process steps prior to rotor assembly and the actual balancing operation. Within current production processes, weighing is almost exclusively performed as an end-of-line. However, the production of drives with permanent magnets integrated into the lamination stack (IPM-Drives) already deliver prefabricated single modules. Those modules can be evaluated separately regarding their imbalance and then can be combined in a manner to achieve a minimum imbalance without additional weighing. In order to assemble rotor and shaft, a new joining operation is subsequent to the pre-balancing operation. For this, the shaft has special carrier geometries and is pressed in axial direction into the lamination stack. Thus, a joining by forming operation is performed. The combination of both process steps could increase the efficiency of production process. The paper describes methods to improve the production process for rotors focusing on a selective balancing step and an innovative joining operation. Therefore strategies to evaluate the imbalance of single lamination stacks prior to their assembly operation are presented. A procedure to calculate ideal rotor assemblies with minimum imbalance will be introduced. Depending on the rotor topology, restrictions regarding free rotation will be considered. The developed concept will be experimentally validated. Based on obtained results, a reduction of imbalance up to 30 % may be possible. To proof the applicability of the selective balancing and the joining operation, joining test were carried out and analyzed regarding the radial runout.
{"title":"In-line strategies and methods to reduce balancing efforts within rotor production for electric drives","authors":"B. Hofmann, M. Masuch, P. Kümmeth, J. Franke, P. Frey, M. Merklein","doi":"10.1109/EDPC.2016.7851310","DOIUrl":"https://doi.org/10.1109/EDPC.2016.7851310","url":null,"abstract":"The manufacturing of electric drives is still time- and cost-intensive. In order to reduce processing time balancing is identified as one of the processes with a high potential for innovation. In contrast to most research efforts, the presented paper follows the approach of concentrating on the impact of process steps prior to rotor assembly and the actual balancing operation. Within current production processes, weighing is almost exclusively performed as an end-of-line. However, the production of drives with permanent magnets integrated into the lamination stack (IPM-Drives) already deliver prefabricated single modules. Those modules can be evaluated separately regarding their imbalance and then can be combined in a manner to achieve a minimum imbalance without additional weighing. In order to assemble rotor and shaft, a new joining operation is subsequent to the pre-balancing operation. For this, the shaft has special carrier geometries and is pressed in axial direction into the lamination stack. Thus, a joining by forming operation is performed. The combination of both process steps could increase the efficiency of production process. The paper describes methods to improve the production process for rotors focusing on a selective balancing step and an innovative joining operation. Therefore strategies to evaluate the imbalance of single lamination stacks prior to their assembly operation are presented. A procedure to calculate ideal rotor assemblies with minimum imbalance will be introduced. Depending on the rotor topology, restrictions regarding free rotation will be considered. The developed concept will be experimentally validated. Based on obtained results, a reduction of imbalance up to 30 % may be possible. To proof the applicability of the selective balancing and the joining operation, joining test were carried out and analyzed regarding the radial runout.","PeriodicalId":121418,"journal":{"name":"2016 6th International Electric Drives Production Conference (EDPC)","volume":"71 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124529646","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 : 2016-11-01DOI: 10.1109/EDPC.2016.7851319
F. Hillenbrand, M. Riedel
In the field of electric motors, electronically commutated PMSM or BLDC type machines due to their superior robustness and efficiency, supersede conventional DC motors. Mass production lines for these motors ask for tight and thorough quality control, in terms of individual characterization of every single output product as well as trend monitoring for the entire production process. Classical test procedures that involve the mechanical coupling of a load machine are expensive in terms of handling efforts and time-consuming test cycles. The paper describes an alternative model based approach. It avoids any external load coupling but instead exploits the inherent inertia of the unloaded test object. By adequate dynamic drive schemes, the machine can be exposed to all relevant load situations, which allow a model based estimation of a small set of machine parameters that fully characterize the specimen. This facilitates very economical quality control procedures that involve short test cycles, 100% fault detection and production process monitoring with analysis and quality statistics. The presented method is verified by a series of measurements with BLDC motors and the results are analyzed with respect to precision and reproducibility.
{"title":"BLDC-motor production process surveillance based on parameter identification method","authors":"F. Hillenbrand, M. Riedel","doi":"10.1109/EDPC.2016.7851319","DOIUrl":"https://doi.org/10.1109/EDPC.2016.7851319","url":null,"abstract":"In the field of electric motors, electronically commutated PMSM or BLDC type machines due to their superior robustness and efficiency, supersede conventional DC motors. Mass production lines for these motors ask for tight and thorough quality control, in terms of individual characterization of every single output product as well as trend monitoring for the entire production process. Classical test procedures that involve the mechanical coupling of a load machine are expensive in terms of handling efforts and time-consuming test cycles. The paper describes an alternative model based approach. It avoids any external load coupling but instead exploits the inherent inertia of the unloaded test object. By adequate dynamic drive schemes, the machine can be exposed to all relevant load situations, which allow a model based estimation of a small set of machine parameters that fully characterize the specimen. This facilitates very economical quality control procedures that involve short test cycles, 100% fault detection and production process monitoring with analysis and quality statistics. The presented method is verified by a series of measurements with BLDC motors and the results are analyzed with respect to precision and reproducibility.","PeriodicalId":121418,"journal":{"name":"2016 6th International Electric Drives Production Conference (EDPC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116854690","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 : 2016-11-01DOI: 10.1109/EDPC.2016.7851345
S. Kreitlein, M. Spahr, M. Utz, J. Franke
This paper evaluates a method for the assessment and evaluation of energy efficiency of the manufacturing process in the electric drive production as well as a corporate and cross-industry comparison. First, the system for the Least Energy Demand Method will be explained. The basic idea of the calculation is the comparison and evaluation of energy efficiency based on the ratio of the theoretically required energy consumption to the measured energy consumption [8]. The Least Energy Demand Method is subsequently extended with the calculation system to evaluate the relative energy efficiency (REE) of higher levels of perspective. The goal is a comparability of the energy efficiency across machines, plants, locations, companies and sectors through definition of significant key figures. The basis of the derivation of possible saving potentials is the relative energy efficiency [6]. The REE of a level of perspective is calculated on the basis of the REE value of the previous production level as well as according to weighting factors. On the basis of the calculation, as well as subsequent measurements within the company, optimization potentials [10] can be clearly described and traced back to their roots. These optimization potentials are based on exemplary trials presented for a chosen manufacturing chain of an electronic production area [5]. The system of the energy efficiency evaluation during the manufacturing process is applied in the production of stators for bike motors.
{"title":"The Least Energy Demand Method as unique tool to evaluate and rate the energy efficiency of the electric drives production","authors":"S. Kreitlein, M. Spahr, M. Utz, J. Franke","doi":"10.1109/EDPC.2016.7851345","DOIUrl":"https://doi.org/10.1109/EDPC.2016.7851345","url":null,"abstract":"This paper evaluates a method for the assessment and evaluation of energy efficiency of the manufacturing process in the electric drive production as well as a corporate and cross-industry comparison. First, the system for the Least Energy Demand Method will be explained. The basic idea of the calculation is the comparison and evaluation of energy efficiency based on the ratio of the theoretically required energy consumption to the measured energy consumption [8]. The Least Energy Demand Method is subsequently extended with the calculation system to evaluate the relative energy efficiency (REE) of higher levels of perspective. The goal is a comparability of the energy efficiency across machines, plants, locations, companies and sectors through definition of significant key figures. The basis of the derivation of possible saving potentials is the relative energy efficiency [6]. The REE of a level of perspective is calculated on the basis of the REE value of the previous production level as well as according to weighting factors. On the basis of the calculation, as well as subsequent measurements within the company, optimization potentials [10] can be clearly described and traced back to their roots. These optimization potentials are based on exemplary trials presented for a chosen manufacturing chain of an electronic production area [5]. The system of the energy efficiency evaluation during the manufacturing process is applied in the production of stators for bike motors.","PeriodicalId":121418,"journal":{"name":"2016 6th International Electric Drives Production Conference (EDPC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129640772","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 : 2016-11-01DOI: 10.1109/EDPC.2016.7851340
D. Cichon, Rafael Psiuk
Demagnetization and defects of permanent magnets used in electric drives can occur during their production or due to operating stresses and lead to reduced reliability and performance. In this paper a novel technique for magnet quality monitoring is proposed. It uses an array of 3D Hall-Sensors to measure the magnetic flux density in the proximity of the magnet. The measurement system and the expected defects are modeled analytically. Based on this model an optimal estimation method for nonlinear systems is used to determine the critical parameters of the magnet. For these parameters pass/fail limits can be applied for production tests and quality monitoring. During our research simulations and measurements were carried out to validate the proposed method.
{"title":"Model-based characterization of permanent magnets with a 3D Hall-Sensor array","authors":"D. Cichon, Rafael Psiuk","doi":"10.1109/EDPC.2016.7851340","DOIUrl":"https://doi.org/10.1109/EDPC.2016.7851340","url":null,"abstract":"Demagnetization and defects of permanent magnets used in electric drives can occur during their production or due to operating stresses and lead to reduced reliability and performance. In this paper a novel technique for magnet quality monitoring is proposed. It uses an array of 3D Hall-Sensors to measure the magnetic flux density in the proximity of the magnet. The measurement system and the expected defects are modeled analytically. Based on this model an optimal estimation method for nonlinear systems is used to determine the critical parameters of the magnet. For these parameters pass/fail limits can be applied for production tests and quality monitoring. During our research simulations and measurements were carried out to validate the proposed method.","PeriodicalId":121418,"journal":{"name":"2016 6th International Electric Drives Production Conference (EDPC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130108713","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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