Pub Date : 2015-05-10DOI: 10.1109/IEMDC.2015.7409170
M. Hofer, Richard SpieBberger, M. Schrodl
Magnetically levitated drives are usually used in high speed applications and/or for special environmental conditions, e.g in turbo pumps. This paper discusses a prototype setup of a sensorless controlled reluctance synchronous machine (RSM) equipped with sensorless controlled active magnetic bearings (AMB) for such target applications. The utilization of sensorless control methods to the AMB and also to the RSM results in a significant simplification of the system architecture and a hardware cost reduction. Additionally by using a three phase AMB topology the same three phase voltage source inverters can be used for the RSM as well as for the AMBs. In this work the focus is set to the sensorless control of the RSM. The basic principle of the two sensorless position detection methods applied to a magnetically levitated RSM prototype for high rotational speeds are investigated. Experiments in the sensorless operation are performed and by the results design criteria for RSM machines with big airgaps are identified, because this is required for the magnetic levitation. Thus, an improved machine design is introduced and simulation results are presented to confirm the improved machine design for such magnetically levitated high speed applications.
{"title":"Design and sensorless control of a reluctance synchronous machine for a magnetically levitated drive","authors":"M. Hofer, Richard SpieBberger, M. Schrodl","doi":"10.1109/IEMDC.2015.7409170","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409170","url":null,"abstract":"Magnetically levitated drives are usually used in high speed applications and/or for special environmental conditions, e.g in turbo pumps. This paper discusses a prototype setup of a sensorless controlled reluctance synchronous machine (RSM) equipped with sensorless controlled active magnetic bearings (AMB) for such target applications. The utilization of sensorless control methods to the AMB and also to the RSM results in a significant simplification of the system architecture and a hardware cost reduction. Additionally by using a three phase AMB topology the same three phase voltage source inverters can be used for the RSM as well as for the AMBs. In this work the focus is set to the sensorless control of the RSM. The basic principle of the two sensorless position detection methods applied to a magnetically levitated RSM prototype for high rotational speeds are investigated. Experiments in the sensorless operation are performed and by the results design criteria for RSM machines with big airgaps are identified, because this is required for the magnetic levitation. Thus, an improved machine design is introduced and simulation results are presented to confirm the improved machine design for such magnetically levitated high speed applications.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"53 1","pages":"916-921"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73553176","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 : 2015-05-10DOI: 10.1109/IEMDC.2015.7409321
C. Debruyne, Bram Corne, P. Sergeant, J. Desmet, L. Vandevelde
Distortion of the supply voltage undoubtedly reduces the overall energy efficiency of induction motors. The goal of this paper is to evaluate additional harmonic losses in relation to the machine's initial efficiency rating. However, due to the relatively small amount of additional loss, the main drawback when evaluating the effect of supply voltage distortion on the machines' overall efficiency is the measurement accuracy of the current methods. In order to validate the effect of motor efficiency rating in relation to supply voltage distortion, the use of the parameter "harmonic active power" is suggested. This new strategy is subsequently validated by measurements and compared to current methods such as the NEMA MG1, or the procedure according to the IEC60034-2-3. Although this strategy is only valid under certain constraints, this new method enables a fast and highly accurate measurement of the additional loss. Consequently, this parameter is used to validate the effect of efficiency rating of induction motors in relation to the additional loss related supply voltage distortion.
{"title":"Evaluation of the additional loss due to supply voltage distortion in relation to induction motor efficiency rating","authors":"C. Debruyne, Bram Corne, P. Sergeant, J. Desmet, L. Vandevelde","doi":"10.1109/IEMDC.2015.7409321","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409321","url":null,"abstract":"Distortion of the supply voltage undoubtedly reduces the overall energy efficiency of induction motors. The goal of this paper is to evaluate additional harmonic losses in relation to the machine's initial efficiency rating. However, due to the relatively small amount of additional loss, the main drawback when evaluating the effect of supply voltage distortion on the machines' overall efficiency is the measurement accuracy of the current methods. In order to validate the effect of motor efficiency rating in relation to supply voltage distortion, the use of the parameter \"harmonic active power\" is suggested. This new strategy is subsequently validated by measurements and compared to current methods such as the NEMA MG1, or the procedure according to the IEC60034-2-3. Although this strategy is only valid under certain constraints, this new method enables a fast and highly accurate measurement of the additional loss. Consequently, this parameter is used to validate the effect of efficiency rating of induction motors in relation to the additional loss related supply voltage distortion.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"20 1","pages":"1881-1887"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75408077","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 : 2015-05-10DOI: 10.1109/IEMDC.2015.7409046
J. Ducreux, J. Roger
The leakage reactance of large turbogenerators is an important electrical parameter. Standard IEC 60034-4 gives measurements on the stator only which can be translated straightforwardly in computational electromagnetics. Several previous studies on this subject can be found in literature. In our opinion, they do not take into account accurately enough the actual leakage flux. Indeed a part of the flux in the machine without the rotor is also a part of the main flux. So we propose here another way to compute leakage reactance based on 2D and 3D electromagnetic computations. Results comply well with manufacturer's measurements. Several calculations with different tools are used to validate our approach.
{"title":"Analysis of stator leakage reactance computation with finite element methods","authors":"J. Ducreux, J. Roger","doi":"10.1109/IEMDC.2015.7409046","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409046","url":null,"abstract":"The leakage reactance of large turbogenerators is an important electrical parameter. Standard IEC 60034-4 gives measurements on the stator only which can be translated straightforwardly in computational electromagnetics. Several previous studies on this subject can be found in literature. In our opinion, they do not take into account accurately enough the actual leakage flux. Indeed a part of the flux in the machine without the rotor is also a part of the main flux. So we propose here another way to compute leakage reactance based on 2D and 3D electromagnetic computations. Results comply well with manufacturer's measurements. Several calculations with different tools are used to validate our approach.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"32 1","pages":"115-120"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74443435","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 : 2015-05-10DOI: 10.1109/IEMDC.2015.7409082
Artur Ulatowski, A. Bazzi
This paper presents a method employing a simple three-phase transformer connected to a three-phase AC variable load for emulating a standard three phase AC induction motor. Such an emulator could be used for variable frequency drive testing but eliminates any moving parts for higher reliability, reduces audible noise, and eliminates high-cost dynamometers. The method utilizes the concept of assuming that the induction machine is a "rotating transformer." To validate the emulator behavior, a simulation for a line-fed machine and a line fed three-phase transformer with a three-phase variable load is performed. Experimental verification of the inverter-fed machine and transformer are also presented and show excellent emulation capabilities of motor behavior at various slip values.
{"title":"Induction motor emulation for variable frequency drives testing","authors":"Artur Ulatowski, A. Bazzi","doi":"10.1109/IEMDC.2015.7409082","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409082","url":null,"abstract":"This paper presents a method employing a simple three-phase transformer connected to a three-phase AC variable load for emulating a standard three phase AC induction motor. Such an emulator could be used for variable frequency drive testing but eliminates any moving parts for higher reliability, reduces audible noise, and eliminates high-cost dynamometers. The method utilizes the concept of assuming that the induction machine is a \"rotating transformer.\" To validate the emulator behavior, a simulation for a line-fed machine and a line fed three-phase transformer with a three-phase variable load is performed. Experimental verification of the inverter-fed machine and transformer are also presented and show excellent emulation capabilities of motor behavior at various slip values.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"11 1","pages":"345-349"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75059438","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 : 2015-05-10DOI: 10.1109/IEMDC.2015.7409200
A. Takbash, P. Pillay
In this paper, a modified analytical method, based on Maxwell's equations is developed to calculate core losses for a wide range of magnetic flux density and frequency. In this method average permeability from experiments and some available material's features are used to calculate both hysteresis and eddy current losses analytically. This method takes the skin effect into account and the real value of permeability, is defined to improve the method accuracy. The main advantage of this method is its simplicity and accuracy especially for higher values of frequency and magnetic flux density in comparison with the other methods. Finally the simulation results are verified by experimental results.
{"title":"A modified analytical method for core losses calculation in magnetic laminations for a wide range of frequency and flux density","authors":"A. Takbash, P. Pillay","doi":"10.1109/IEMDC.2015.7409200","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409200","url":null,"abstract":"In this paper, a modified analytical method, based on Maxwell's equations is developed to calculate core losses for a wide range of magnetic flux density and frequency. In this method average permeability from experiments and some available material's features are used to calculate both hysteresis and eddy current losses analytically. This method takes the skin effect into account and the real value of permeability, is defined to improve the method accuracy. The main advantage of this method is its simplicity and accuracy especially for higher values of frequency and magnetic flux density in comparison with the other methods. Finally the simulation results are verified by experimental results.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"110 1","pages":"1109-1114"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80516190","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 : 2015-05-10DOI: 10.1109/IEMDC.2015.7409184
W. Uddin, Y. Sozer
A model of Mutually Coupled Switched Reluctance Machine (MCSRM) which includes the effect of multiple phase current excitations using a single lookup table is developed. The model can predict the MCSRM flux linkage and electromagnetic torque. The current waveform for low torque ripple is determined with the help of this model. The optimum current waveforms vary with the torque and speed levels. This increases the memory requirement of the control system. A memory efficient method for determining the optimum current waveform responsible for low torque ripple is proposed in this paper. With the proposed method Fourier series coefficients of the current shapes at some specific operating points are determined. Parameters for other operating points are determined through bi-cubic spline interpolation. The proposed modeling and torque ripple minimization approach is studied for a 30 kW MCSRM design. Finite Element Analysis (FEA) coupled with circuit simulations are presented along with Matlab/Simulink simulations for verification of the proposed modeling and ripple minimization methods.
{"title":"Modeling of mutually coupled switched reluctance motors for torque ripple minimization","authors":"W. Uddin, Y. Sozer","doi":"10.1109/IEMDC.2015.7409184","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409184","url":null,"abstract":"A model of Mutually Coupled Switched Reluctance Machine (MCSRM) which includes the effect of multiple phase current excitations using a single lookup table is developed. The model can predict the MCSRM flux linkage and electromagnetic torque. The current waveform for low torque ripple is determined with the help of this model. The optimum current waveforms vary with the torque and speed levels. This increases the memory requirement of the control system. A memory efficient method for determining the optimum current waveform responsible for low torque ripple is proposed in this paper. With the proposed method Fourier series coefficients of the current shapes at some specific operating points are determined. Parameters for other operating points are determined through bi-cubic spline interpolation. The proposed modeling and torque ripple minimization approach is studied for a 30 kW MCSRM design. Finite Element Analysis (FEA) coupled with circuit simulations are presented along with Matlab/Simulink simulations for verification of the proposed modeling and ripple minimization methods.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"40 1","pages":"1006-1010"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80532980","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 : 2015-05-10DOI: 10.1109/IEMDC.2015.7409284
Liang Chen, Xiao Chen, Jiabin Wang, P. Lazari
This paper describes a computationally efficient optimization technique for permanent magnet machines in electric vehicle (EV) traction applications. It addresses multi-physics machine designs against driving cycles, including inverter-machine system energy efficiency, thermal behaviors and mechanical stress in rotor lamination. To drastically reduce computation time of repeated finite element analysis (FE) of the non-linear electromagnetic field and mechanical stress in permanent magnet machines especially interior permanent magnet machines (IPM), a set of analytical machine models characterized from FE calculations are developed which lead to significant reduction in computation time without compromising accuracy during an optimization. The proposed technique is applied to a multi-physics design optimization of an IPM machine for EV traction against 6-8 leading design parameters, and is validated by a series of tests on a prototype machine.
{"title":"A computationally efficient multi-physics optimization technique for permanent magnet machines in electric vehicle traction applications","authors":"Liang Chen, Xiao Chen, Jiabin Wang, P. Lazari","doi":"10.1109/IEMDC.2015.7409284","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409284","url":null,"abstract":"This paper describes a computationally efficient optimization technique for permanent magnet machines in electric vehicle (EV) traction applications. It addresses multi-physics machine designs against driving cycles, including inverter-machine system energy efficiency, thermal behaviors and mechanical stress in rotor lamination. To drastically reduce computation time of repeated finite element analysis (FE) of the non-linear electromagnetic field and mechanical stress in permanent magnet machines especially interior permanent magnet machines (IPM), a set of analytical machine models characterized from FE calculations are developed which lead to significant reduction in computation time without compromising accuracy during an optimization. The proposed technique is applied to a multi-physics design optimization of an IPM machine for EV traction against 6-8 leading design parameters, and is validated by a series of tests on a prototype machine.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"9 1","pages":"1644-1650"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81910437","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 : 2015-05-10DOI: 10.1109/IEMDC.2015.7409188
Bo Wang, G. Localzo, G. el Murr, J. Wang, A. Griffo, C. Gerada, T. Cox
Dual inverter open winding drive (DIOWD) has several advantages over standard 3 phase drive such as multilevel voltage output, lower dc link voltage, high efficiency and better fault tolerant capability. In this paper three DIOWD topologies aiming for high speed and/or safety critical applications are evaluated. Their operation characteristics, VA ratings, efficiencies, harmonic distortion factors (HDF) are quantitatively compared using analytical methods. The utilization of dual inverters provides fault tolerant capabilities for the drive. However, the doubled number of devices increases the risk of single-point failure. Finally, the reliability of the drives is assessed by Markov chain technique. The results show that the DIOWD with two power supplies exhibits low HDF and high efficiency; it also offers better fault tolerant capability and enhanced reliability, thereby being more attractive for both high speed and high reliability applications. While the DIOWD with single power supply and the DIOWD with a power supply and a floating capacitor can be utilized for high speed drives with reduced dc link voltage.
{"title":"Overall assessments of dual inverter open winding drives","authors":"Bo Wang, G. Localzo, G. el Murr, J. Wang, A. Griffo, C. Gerada, T. Cox","doi":"10.1109/IEMDC.2015.7409188","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409188","url":null,"abstract":"Dual inverter open winding drive (DIOWD) has several advantages over standard 3 phase drive such as multilevel voltage output, lower dc link voltage, high efficiency and better fault tolerant capability. In this paper three DIOWD topologies aiming for high speed and/or safety critical applications are evaluated. Their operation characteristics, VA ratings, efficiencies, harmonic distortion factors (HDF) are quantitatively compared using analytical methods. The utilization of dual inverters provides fault tolerant capabilities for the drive. However, the doubled number of devices increases the risk of single-point failure. Finally, the reliability of the drives is assessed by Markov chain technique. The results show that the DIOWD with two power supplies exhibits low HDF and high efficiency; it also offers better fault tolerant capability and enhanced reliability, thereby being more attractive for both high speed and high reliability applications. While the DIOWD with single power supply and the DIOWD with a power supply and a floating capacitor can be utilized for high speed drives with reduced dc link voltage.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"31 1","pages":"1029-1035"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85872097","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 : 2015-05-10DOI: 10.1109/IEMDC.2015.7409255
Khalid I. Saad, G. Mirzaeva
The stator current and main air gap electromagnetic flux of an induction motor produces different types of harmonics even when they are run by balanced three-phase supply. A lot of these harmonics are created due to the spatial positions as well as slot structure of stator and rotor and thus known as space harmonics. If the supply is imbalanced or the motor is fed from an inverter, which is the most likely case in industrial environment, even more harmonics are created in time domain. As unwanted as these harmonics may be, they have a good use for condition monitoring of the motor. The harmonics show a certain behavior for a healthy motor and deviations from those behavior may lead to detect a fault as it happens. Most of the existing electrical techniques of condition monitoring are based on the time harmonics analysis of the stator current and/or leakage flux. We propose to analyze the space harmonics of the main air gap electromagnetic flux along with the time domain analysis to detect faults. To this aim, we present a model to analyze the space harmonics of the main air gap flux of a healthy as well as an eccentric induction motor in this paper. We also propose a method to detect and differentiate among different types of eccentricity, i.e. static, dynamic and mixed eccentricity by analyzing the main air gap flux with respect to both stator and rotor. Our presented results show that the space harmonics analysis can be used to detect and differentiate between different types of eccentricity unambiguously.
{"title":"Space-time representation of the main air gap flux of a three phase squirrel cage induction motor and its application to detect eccentricity","authors":"Khalid I. Saad, G. Mirzaeva","doi":"10.1109/IEMDC.2015.7409255","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409255","url":null,"abstract":"The stator current and main air gap electromagnetic flux of an induction motor produces different types of harmonics even when they are run by balanced three-phase supply. A lot of these harmonics are created due to the spatial positions as well as slot structure of stator and rotor and thus known as space harmonics. If the supply is imbalanced or the motor is fed from an inverter, which is the most likely case in industrial environment, even more harmonics are created in time domain. As unwanted as these harmonics may be, they have a good use for condition monitoring of the motor. The harmonics show a certain behavior for a healthy motor and deviations from those behavior may lead to detect a fault as it happens. Most of the existing electrical techniques of condition monitoring are based on the time harmonics analysis of the stator current and/or leakage flux. We propose to analyze the space harmonics of the main air gap electromagnetic flux along with the time domain analysis to detect faults. To this aim, we present a model to analyze the space harmonics of the main air gap flux of a healthy as well as an eccentric induction motor in this paper. We also propose a method to detect and differentiate among different types of eccentricity, i.e. static, dynamic and mixed eccentricity by analyzing the main air gap flux with respect to both stator and rotor. Our presented results show that the space harmonics analysis can be used to detect and differentiate between different types of eccentricity unambiguously.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"130 1 1","pages":"1466-1472"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81124561","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 : 2015-05-10DOI: 10.1109/IEMDC.2015.7409279
D. Woodburn, Thomas Wu, A. Camarano
In support of full-electrification of aircraft and of aircraft design in general, detailed modeling of the aircraft electric generator is very useful. High-fidelity modeling of high-speed generators is necessary for the development of all-electric aircraft. Nonlinear magnetics play a significant role in the transient behavior of a synchronous machine (SM) generator during load on and load off cases. This paper demonstrates the nonlinear magnetics of an SM generator and nonlinear functions that accurately fit the magnetics.
{"title":"Nonlinear, magnetics model of a synchronous generator","authors":"D. Woodburn, Thomas Wu, A. Camarano","doi":"10.1109/IEMDC.2015.7409279","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409279","url":null,"abstract":"In support of full-electrification of aircraft and of aircraft design in general, detailed modeling of the aircraft electric generator is very useful. High-fidelity modeling of high-speed generators is necessary for the development of all-electric aircraft. Nonlinear magnetics play a significant role in the transient behavior of a synchronous machine (SM) generator during load on and load off cases. This paper demonstrates the nonlinear magnetics of an SM generator and nonlinear functions that accurately fit the magnetics.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"18 1","pages":"1614-1620"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78457207","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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