EPE Association: EPE 2007 - Subtopic 10-7 - DS: Linear machines, integrated electrical machines

EPE 2007 - Subtopic 10-7 - DS: Linear machines, integrated electrical machines
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2007 - Conference > EPE 2007 - Topic 10: 'Electrical machines' > EPE 2007 - Subtopic 10-7 - DS: Linear machines, integrated electrical machines

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   Detent force compensation in Segmented Long Stator Permanent Magnet Linear Drives using Finite Element Models
By MUTSCHLER Peter; BENAVIDES Rodrigo [View]
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Abstract: Detent force is a typical drawback of Linear Permanent Magnet (PM) machines, particularly when accurate positioning or constant low speed is required. This paper proposes a compensation for the detent force using feed forward quantities obtained from Finite Element Models (FEM). Two control strategies are tested, the traditional field oriented control and indirect flux control, both using feed forward quantities from FEM. An experimental setup with a segmented long stator permanent magnet linear machine is used to build the FEM. Finally the control strategies are tested and compared.

   ELECTROMAGNETIC ANALYSIS OF THE INDUCTION MOTOR WITH SPIRAL SHEET ROTOR
By NAVARRETE Hugo; MUJAL-ROSAS Ramon [View]
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Abstract: Improvements on the torque with low currents using rotor with spiral sheets are analyzed. Several rotors and stators have been built combining different constructive and mechanical characteristics of the related elements: inertias, constructive materials, geometrical shapes of the sheets and geometrical disposition of the sheets. These different types of motors have been simulated using computer aided tools and then tested in the laboratory. Finally, four stators (1000, 1500, 1500-type A, and 3000 rpm) having the same constructive parameters, have been simulated and tested with the following rotors types: solid rotor, solid rotor with diamagnetic rings, drag cup, and simple and double squirrel cage rotor; these results have been compared to those obtained with the seven variants of spiral sheet rotor presented in this paper.

   Impact of Permanent Magnet Field on Inductance Variation of a PMLSM
By TOUNZI AbdelmounaÃ¯m; HAUTIER Jean-Paul; REMY Ghislain; BARRE Pierre-Jean; GOMAND Julien [View]
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Abstract: Analytical models of Surface Mounted Permanent Magnet Linear Synchronous Motors are generally presented with constant inductances. However, the impact of powerful rare-earth PMs in the saturation phenomena cannot be neglected anymore. In this paper, a new non-linear model of PMLSM inductances is suggested. This model is defined as a function of the current value as well as of the magnet position. So, an analytical study, a finite-element analysis and experimental results are presented and confronted.

EPE 2007 - Subtopic 10-7 - DS: Linear machines, integrated electrical machines
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2007 - Conference > EPE 2007 - Topic 10: 'Electrical machines' > EPE 2007 - Subtopic 10-7 - DS: Linear machines, integrated electrical machines
	[return to parent folder]

	Detent force compensation in Segmented Long Stator Permanent Magnet Linear Drives using Finite Element Models By MUTSCHLER Peter; BENAVIDES Rodrigo	[View] [Download]
Abstract: Detent force is a typical drawback of Linear Permanent Magnet (PM) machines, particularly when accurate positioning or constant low speed is required. This paper proposes a compensation for the detent force using feed forward quantities obtained from Finite Element Models (FEM). Two control strategies are tested, the traditional field oriented control and indirect flux control, both using feed forward quantities from FEM. An experimental setup with a segmented long stator permanent magnet linear machine is used to build the FEM. Finally the control strategies are tested and compared.

	ELECTROMAGNETIC ANALYSIS OF THE INDUCTION MOTOR WITH SPIRAL SHEET ROTOR By NAVARRETE Hugo; MUJAL-ROSAS Ramon	[View] [Download]
Abstract: Improvements on the torque with low currents using rotor with spiral sheets are analyzed. Several rotors and stators have been built combining different constructive and mechanical characteristics of the related elements: inertias, constructive materials, geometrical shapes of the sheets and geometrical disposition of the sheets. These different types of motors have been simulated using computer aided tools and then tested in the laboratory. Finally, four stators (1000, 1500, 1500-type A, and 3000 rpm) having the same constructive parameters, have been simulated and tested with the following rotors types: solid rotor, solid rotor with diamagnetic rings, drag cup, and simple and double squirrel cage rotor; these results have been compared to those obtained with the seven variants of spiral sheet rotor presented in this paper.

	Impact of Permanent Magnet Field on Inductance Variation of a PMLSM By TOUNZI AbdelmounaÃ¯m; HAUTIER Jean-Paul; REMY Ghislain; BARRE Pierre-Jean; GOMAND Julien	[View] [Download]
Abstract: Analytical models of Surface Mounted Permanent Magnet Linear Synchronous Motors are generally presented with constant inductances. However, the impact of powerful rare-earth PMs in the saturation phenomena cannot be neglected anymore. In this paper, a new non-linear model of PMLSM inductances is suggested. This model is defined as a function of the current value as well as of the magnet position. So, an analytical study, a finite-element analysis and experimental results are presented and confronted.