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The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material.Wed, 17 Apr 2024 21:42:52 GMT2024-04-17T21:42:52ZHIGH SPEED FUNCTIONALITY OPTIMIZATION OF FIVE-PHASE PM MACHINE USING 3RD HARMONIC CURRENT
http://hdl.handle.net/10985/7355
HIGH SPEED FUNCTIONALITY OPTIMIZATION OF FIVE-PHASE PM MACHINE USING 3RD HARMONIC CURRENT
GONG, Jinlin; ASLAN, Bassel; GILLON, Frédéric; SEMAIL, Eric
Some surrogate-assisted optimization techniques are applied in order to improve the performances of a 5-phase Permanent Magnet (PM) machine in the context of a complex model requiring computation time. An optimal control of four independent currents is proposed in order to minimize the total losses with the respect of functioning constraints. Moreover, some geometrical parameters are added to the optimization process allowing a co-design between control and dimensioning. The effectiveness of the method allows solving the challenge which consists in taking into account inside the control strategy the eddy-current losses in magnets and iron. In fact, magnet losses are a critical point to protect the machine from demagnetization in flux-weakening region. But these losses, which highly depend on magnetic state of the machine, must be calculated by Finite Element Method (FEM) to be accurate. The FEM has the drawback to be time consuming. It is why, a direct optimization using FEM is critical. The response surface method (RSM) and the Efficient Global Optimization (EGO) algorithm consist in approximating the FEM by a surrogate model used directly or indirectly in the optimization process. The optimal results proved the interest of the both methods in this context
This project was supported by the Laboratory of Electrical Engineering and Power Electronics (L2EP) France. It is a successive cooperation project between the control team and optimization team of the laboratory .
Wed, 01 Jan 2014 00:00:00 GMThttp://hdl.handle.net/10985/73552014-01-01T00:00:00ZGONG, JinlinASLAN, BasselGILLON, FrédéricSEMAIL, EricSome surrogate-assisted optimization techniques are applied in order to improve the performances of a 5-phase Permanent Magnet (PM) machine in the context of a complex model requiring computation time. An optimal control of four independent currents is proposed in order to minimize the total losses with the respect of functioning constraints. Moreover, some geometrical parameters are added to the optimization process allowing a co-design between control and dimensioning. The effectiveness of the method allows solving the challenge which consists in taking into account inside the control strategy the eddy-current losses in magnets and iron. In fact, magnet losses are a critical point to protect the machine from demagnetization in flux-weakening region. But these losses, which highly depend on magnetic state of the machine, must be calculated by Finite Element Method (FEM) to be accurate. The FEM has the drawback to be time consuming. It is why, a direct optimization using FEM is critical. The response surface method (RSM) and the Efficient Global Optimization (EGO) algorithm consist in approximating the FEM by a surrogate model used directly or indirectly in the optimization process. The optimal results proved the interest of the both methods in this contextInfluence of Rotor Structure and Number of Phases on Torque and Flux Weakening Characteristics of V-Shape Interior PM Electrical Machine
http://hdl.handle.net/10985/6752
Influence of Rotor Structure and Number of Phases on Torque and Flux Weakening Characteristics of V-Shape Interior PM Electrical Machine
ASLAN, Bassel; KORECKI, Julien; VIGIER, Thimoté; SEMAIL, Eric
This paper investigates the influence of the rotor structure on torque and flux weakening region of V-shape IPM (interior permanent magnet) machine from TOYOTA PRIUS type. More specifically, always keeping the same magnet volume, the effect of the open angle between the two magnet segments of each V-shape pole on the machine performance is studied. Moreover, in order to examine the impact of phase number on the machine characteristics, PRIUS structure is transformed into 5-phase machine of the same type and dimensions. As well, an optimization procedure is carried out to determine the optimal open angle according to main characteristics. The previous investigation is done by using a free FEM (finite elements methods) program coupled with another optimization program. Using this obtained methodology, the study analyzes for 3-phase and 5-phase machine the average and pulsation of torque, cogging torque, phase EMF (electro-motive force), constant power operating capability.
Post publication CONGRES EVER2011 (International Conference and Exhibition on Ecological Vehicles and Renewable Energies 2011)
Sun, 01 Jan 2012 00:00:00 GMThttp://hdl.handle.net/10985/67522012-01-01T00:00:00ZASLAN, BasselKORECKI, JulienVIGIER, ThimotéSEMAIL, EricThis paper investigates the influence of the rotor structure on torque and flux weakening region of V-shape IPM (interior permanent magnet) machine from TOYOTA PRIUS type. More specifically, always keeping the same magnet volume, the effect of the open angle between the two magnet segments of each V-shape pole on the machine performance is studied. Moreover, in order to examine the impact of phase number on the machine characteristics, PRIUS structure is transformed into 5-phase machine of the same type and dimensions. As well, an optimization procedure is carried out to determine the optimal open angle according to main characteristics. The previous investigation is done by using a free FEM (finite elements methods) program coupled with another optimization program. Using this obtained methodology, the study analyzes for 3-phase and 5-phase machine the average and pulsation of torque, cogging torque, phase EMF (electro-motive force), constant power operating capability.General Analytical Model of Magnet Average Eddy-Current Volume Losses for Comparison of Multi-phase PM Machines with Concentrated Winding
http://hdl.handle.net/10985/8268
General Analytical Model of Magnet Average Eddy-Current Volume Losses for Comparison of Multi-phase PM Machines with Concentrated Winding
ASLAN, Bassel; LEGRANGER, Jerome; SEMAIL, Eric
this paper studies magnet eddy-current losses in permanent magnet (PM) machines with concentrated winding. First of all, space harmonics of magnetomotive force (MMF) and their influence on magnet losses in electrical machines are investigated. Secondly, analytical model of magnet volume losses is developed by studying the interaction between MMF harmonics wavelengths and magnet pole dimensions. Different cases of this interaction are exhibited according to the ratio between each harmonic wavelength and magnet pole width. Then various losses sub-models are deduced. Using this analytical model, magnet volume losses for many Slots/Poles combinations of 3, 5, and 7 phase machines with concentrated winding are compared. This comparison leads to classify combinations into different families depending on their magnet losses level. Finally, in order to verify the theoretical study, Finite Element models are built and simulation results are compared with analytical calculations
Wed, 01 Jan 2014 00:00:00 GMThttp://hdl.handle.net/10985/82682014-01-01T00:00:00ZASLAN, BasselLEGRANGER, JeromeSEMAIL, Ericthis paper studies magnet eddy-current losses in permanent magnet (PM) machines with concentrated winding. First of all, space harmonics of magnetomotive force (MMF) and their influence on magnet losses in electrical machines are investigated. Secondly, analytical model of magnet volume losses is developed by studying the interaction between MMF harmonics wavelengths and magnet pole dimensions. Different cases of this interaction are exhibited according to the ratio between each harmonic wavelength and magnet pole width. Then various losses sub-models are deduced. Using this analytical model, magnet volume losses for many Slots/Poles combinations of 3, 5, and 7 phase machines with concentrated winding are compared. This comparison leads to classify combinations into different families depending on their magnet losses level. Finally, in order to verify the theoretical study, Finite Element models are built and simulation results are compared with analytical calculationsProcédé de fabrication d’une machine électrique tournante synchrone polyphasée, et machine correspondante
http://hdl.handle.net/10985/7057
Procédé de fabrication d’une machine électrique tournante synchrone polyphasée, et machine correspondante
ASLAN, Bassel; SEMAIL, Eric; LEGRANGER, Jerome
La présente invention concerne une machine électrique tournante synchrone polyphasée dont le rotor comprend des aimants permanents. Plus particulièrement l'invention concerne une machine électrique tournante pour des applications propres aux véhicules automobiles comme des alterno-démarreurs.
Tue, 01 Jan 2013 00:00:00 GMThttp://hdl.handle.net/10985/70572013-01-01T00:00:00ZASLAN, BasselSEMAIL, EricLEGRANGER, JeromeLa présente invention concerne une machine électrique tournante synchrone polyphasée dont le rotor comprend des aimants permanents. Plus particulièrement l'invention concerne une machine électrique tournante pour des applications propres aux véhicules automobiles comme des alterno-démarreurs.New 5-Phase Concentrated Winding Machine with Bi-Harmonic Rotor for Automotive Application
http://hdl.handle.net/10985/9154
New 5-Phase Concentrated Winding Machine with Bi-Harmonic Rotor for Automotive Application
ASLAN, Bassel; SEMAIL, Eric
For a power range from 10 to 30 kW, 5-phase machines are well adapted to low-voltage (48V) supply thanks to their reduced current per phase. For three-phase machines but with higher voltages (>120V), machines with a number of slots per pole and per phase spp equal to 0.5 (as the 12slots/8poles combination) are widely used in hybrid automotive applications when a wide speed range is required. The reason is that the value of spp=0.5 guarantees no sub-harmonics and thus induces low level of permanent magnet rotor losses. In this paper a 20slots/8poles/5phases machine is chosen. With a winding factor of only 0.588 for the first harmonic, this machine is only interesting if its high third harmonic winding factor (0.951) is used. Thus, a new bi-harmonic rotor structure is presented. Thanks to adequate control with flux-weakening and ratio r between first and third harmonic currents, the maximum torque versus speed characteristic is determined.
Wed, 01 Jan 2014 00:00:00 GMThttp://hdl.handle.net/10985/91542014-01-01T00:00:00ZASLAN, BasselSEMAIL, EricFor a power range from 10 to 30 kW, 5-phase machines are well adapted to low-voltage (48V) supply thanks to their reduced current per phase. For three-phase machines but with higher voltages (>120V), machines with a number of slots per pole and per phase spp equal to 0.5 (as the 12slots/8poles combination) are widely used in hybrid automotive applications when a wide speed range is required. The reason is that the value of spp=0.5 guarantees no sub-harmonics and thus induces low level of permanent magnet rotor losses. In this paper a 20slots/8poles/5phases machine is chosen. With a winding factor of only 0.588 for the first harmonic, this machine is only interesting if its high third harmonic winding factor (0.951) is used. Thus, a new bi-harmonic rotor structure is presented. Thanks to adequate control with flux-weakening and ratio r between first and third harmonic currents, the maximum torque versus speed characteristic is determined.Flux Weakening Strategy Optimization for Five-Phase PM Machine with Concentrated Windings
http://hdl.handle.net/10985/7315
Flux Weakening Strategy Optimization for Five-Phase PM Machine with Concentrated Windings
JILIN, Gong; ASLAN, Bassel; SEMAIL, Eric; GILLON, Frédéric
The paper applies an Efficient Global Optimization method (EGO) to improve the efficiency, in flux weakening region, of a given 5-phase Permanent Magnet (PM) machine. An optimal control for the four independent currents is thus defined. Moreover, a modification proposal of the machine geometry is added to the optimization process of the global drive. The effectiveness of the method allows solving the challenge which consists in taking into account inside the control strategy the eddy-current losses in magnets and iron. In fact, magnet losses are a critical point to protect the machine from demagnetization in flux-weakening region. But these losses, which highly depend on magnetic state of the machine, must be calculated by Finite Element Method (FEM) to be accurate. The FEM has the drawback to be time consuming. It is why a direct optimization using FEM is critical. EGO method, using sparingly FEM, allows to find a feasible solution to this hard optimization problem of control and design of multi-phase drive.
Sun, 01 Jan 2012 00:00:00 GMThttp://hdl.handle.net/10985/73152012-01-01T00:00:00ZJILIN, GongASLAN, BasselSEMAIL, EricGILLON, FrédéricThe paper applies an Efficient Global Optimization method (EGO) to improve the efficiency, in flux weakening region, of a given 5-phase Permanent Magnet (PM) machine. An optimal control for the four independent currents is thus defined. Moreover, a modification proposal of the machine geometry is added to the optimization process of the global drive. The effectiveness of the method allows solving the challenge which consists in taking into account inside the control strategy the eddy-current losses in magnets and iron. In fact, magnet losses are a critical point to protect the machine from demagnetization in flux-weakening region. But these losses, which highly depend on magnetic state of the machine, must be calculated by Finite Element Method (FEM) to be accurate. The FEM has the drawback to be time consuming. It is why a direct optimization using FEM is critical. EGO method, using sparingly FEM, allows to find a feasible solution to this hard optimization problem of control and design of multi-phase drive.Analytical Model of Magnet Eddy-Current Volume Losses in Multi-phase PM Machines with Concentrated Winding
http://hdl.handle.net/10985/6954
Analytical Model of Magnet Eddy-Current Volume Losses in Multi-phase PM Machines with Concentrated Winding
ASLAN, Bassel; SEMAIL, Eric; LEGRANGER, Jerome
this paper studies magnet eddy-current losses in permanent magnet (PM) machines with concentrated winding. First of all, space harmonics of magnetomotive force (MMF) and their influence on magnet losses in electrical machines are investigated. Secondly, analytical model of magnet volume losses is developed by studying the interaction between MMF harmonics wavelengths and magnet pole dimensions. Different cases of this interaction are studied according to the ratio between each harmonic wavelength and magnet pole width (following flux density variation). Then various losses sub-models are deduced. Finally, using this analytical model, magnet volume losses for many slots/poles combinations of 3, 5, and 7 phase machines with concentrated winding are compared. This comparison leads to classify combinations into different families depending on their magnet losses level. Besides, in order to validate the theoretical study, Finite Element models are built and simulation results are compared with analytical calculations.
Thanks to IEEE. The original PDF of the article can be found at: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6342330&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D6342330 MHYGALE, project managed by VALEO-EEM
Sun, 01 Jan 2012 00:00:00 GMThttp://hdl.handle.net/10985/69542012-01-01T00:00:00ZASLAN, BasselSEMAIL, EricLEGRANGER, Jeromethis paper studies magnet eddy-current losses in permanent magnet (PM) machines with concentrated winding. First of all, space harmonics of magnetomotive force (MMF) and their influence on magnet losses in electrical machines are investigated. Secondly, analytical model of magnet volume losses is developed by studying the interaction between MMF harmonics wavelengths and magnet pole dimensions. Different cases of this interaction are studied according to the ratio between each harmonic wavelength and magnet pole width (following flux density variation). Then various losses sub-models are deduced. Finally, using this analytical model, magnet volume losses for many slots/poles combinations of 3, 5, and 7 phase machines with concentrated winding are compared. This comparison leads to classify combinations into different families depending on their magnet losses level. Besides, in order to validate the theoretical study, Finite Element models are built and simulation results are compared with analytical calculations.MACHINE ELECTRIQUE TOURNANTE POLYPHASEE A AU MOINS CINQ PHASES
http://hdl.handle.net/10985/7423
MACHINE ELECTRIQUE TOURNANTE POLYPHASEE A AU MOINS CINQ PHASES
ASLAN, Bassel; LEGRANGER, Jerome; SEMAIL, Eric
La présente invention porte sur une machine électrique tournante 5 polyphasée à au moins cinq phases. L'invention trouve une application particulièrement avantageuse dans le domaine des alternateurs, des alterno-démarreurs, ou des machines électriques de traction de véhicule automobile.
Ce brevet s'est opéré dans le cadre de la thèse d'Aslan Bassel au Laboratoire L2EP avec VALEO dans le cadre du projet MHYGALE financé par l'ADEME, avec VALEO responsable du consortium. Le brevet est déposé au nom de VALEO EQUIPEMENTS ELECTRIQUES MOTEUR.
Tue, 01 Jan 2013 00:00:00 GMThttp://hdl.handle.net/10985/74232013-01-01T00:00:00ZASLAN, BasselLEGRANGER, JeromeSEMAIL, EricLa présente invention porte sur une machine électrique tournante 5 polyphasée à au moins cinq phases. L'invention trouve une application particulièrement avantageuse dans le domaine des alternateurs, des alterno-démarreurs, ou des machines électriques de traction de véhicule automobile.Slot/pole Combinations Choice for Concentrated Multiphase Machines dedicated to Mild-Hybrid Applications
http://hdl.handle.net/10985/6955
Slot/pole Combinations Choice for Concentrated Multiphase Machines dedicated to Mild-Hybrid Applications
ASLAN, Bassel; KORECKI, Julien; LEGRANGER, Jerome; SEMAIL, Eric
This paper presents multiphase permanent magnet machines with concentrated non-overlapped winding as a good candidate for automotive low voltage mild-hybrid applications. These machines often require a trade-off between low speed performances such as high torque density and high speed performances like flux weakening capabilities. This paper describes how to choose a key design parameter to ease this compromise, the slots/poles combination, according to three parameters: winding factor including harmonics factor, rotor losses amount thanks to a comparison factor and radial forces balancing. The comparison criterion are based on both analytical formula and Finite Element Analysis.
Version de l'éditeur à l'adresse suivante : http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6119910&isnumber=6119266
Sat, 01 Jan 2011 00:00:00 GMThttp://hdl.handle.net/10985/69552011-01-01T00:00:00ZASLAN, BasselKORECKI, JulienLEGRANGER, JeromeSEMAIL, EricThis paper presents multiphase permanent magnet machines with concentrated non-overlapped winding as a good candidate for automotive low voltage mild-hybrid applications. These machines often require a trade-off between low speed performances such as high torque density and high speed performances like flux weakening capabilities. This paper describes how to choose a key design parameter to ease this compromise, the slots/poles combination, according to three parameters: winding factor including harmonics factor, rotor losses amount thanks to a comparison factor and radial forces balancing. The comparison criterion are based on both analytical formula and Finite Element Analysis.Influence of Rotor Structure and Number of Phases on Torque and Flux Weakening Characteristics of V-shape Interior PM Electrical Machine
http://hdl.handle.net/10985/6737
Influence of Rotor Structure and Number of Phases on Torque and Flux Weakening Characteristics of V-shape Interior PM Electrical Machine
ASLAN, Bassel; KORECKI, Julien; VIGIER, Thimoté; SEMAIL, Eric
This paper investigates the influence of the rotor structure on torque and Flux weakening region of V-shape IPM machine from TOYOTA PRIUS type, more specifically, keeping always the same magnet volume, we study the effect of the open angle between the two magnet segments of each V-shape pole on the machine performance. Moreover, in order to examine the impact of phase number on the machine characteristics, PRIUS structure is transformed into 5-phase machine of the same type and dimensions. As well, an optimization procedure is carried out to determine the optimal open angle according to main characteristics. The previous investigation is done by using a free Finite Elements Methods (FEM) program coupled with another optimization program. Using this obtained methodology the study analyzes for 3-phase and 5-phase machine the average and pulsation of torque, cogging torque, phase back-EMF, constant power operating capability.
Version plus complete dans Journal of Energy and Power Engineering-2012.09 pp1461 a 1471
Sat, 01 Jan 2011 00:00:00 GMThttp://hdl.handle.net/10985/67372011-01-01T00:00:00ZASLAN, BasselKORECKI, JulienVIGIER, ThimotéSEMAIL, EricThis paper investigates the influence of the rotor structure on torque and Flux weakening region of V-shape IPM machine from TOYOTA PRIUS type, more specifically, keeping always the same magnet volume, we study the effect of the open angle between the two magnet segments of each V-shape pole on the machine performance. Moreover, in order to examine the impact of phase number on the machine characteristics, PRIUS structure is transformed into 5-phase machine of the same type and dimensions. As well, an optimization procedure is carried out to determine the optimal open angle according to main characteristics. The previous investigation is done by using a free Finite Elements Methods (FEM) program coupled with another optimization program. Using this obtained methodology the study analyzes for 3-phase and 5-phase machine the average and pulsation of torque, cogging torque, phase back-EMF, constant power operating capability.