EPE Association: EPE 2007 - Subtopic 10-1 - LS: Switched reluctance machines

EPE 2007 - Subtopic 10-1 - LS: Switched reluctance machines
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2007 - Conference > EPE 2007 - Topic 10: 'Electrical machines' > EPE 2007 - Subtopic 10-1 - LS: Switched reluctance machines

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   Novel Analytical Calculation Method for the Non-Linear Psi-i-Characteristic of Switched-Reluctance-Machines in Arbitrary Rotor Positions
By GERLING Dieter [View]
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Abstract: The non-linear Psi-i-characteristic is crucial for the design of switched reluctance machines. Known analytical calculations are based on complex models of the magnetic circuit or on functions needing a fitting procedure (using measured or FEM-calculated data). In this paper, a method is presented that requires only very few input data, which can be deduced easily from the geometry of the machine. Comparisons with measured data show an acceptable correlation for arbitrary rotor positions, qualifying this method to be used in the design stage of new drives.

   GA-Based Autonomous Electromagnetic Design and Experimental Verification of Two-Phase Switched Reluctance Compressor Drive
By KANO Yoshiaki; MATSUI Nobuyuki; KOSAKA Takashi [View]
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Abstract: This paper presents an approach to Genetic Algorithm (GA)-based computer aided autonomous electromagnetic design of 2-phase switched reluctance motor drives. The proposed drive is designed for compressor drives of low-priced refrigerators as an alternative to existing brushless DC motor drives with rare-earth magnets. In the proposed design approach, three GA loops work to optimize the lamination design in order to meet the requirements for the target application while simultaneously fine-tuning the control parameters. To achieve the design optimization within a realistic timescale, the repeated-calculation required to obtain fitness evaluation does not use Finite Element Analysis (FEA), but consists of geometric flux tube-based non-linear magnetic analysis and a dynamic simulator based on an analytical expression of the magnetizing curves obtained from the non-linear magnetic analysis. The validity of the proposed design approach is verified through several comparative studies on the design results with FEA and the experimental studies using a 250W 2-phase 8/6 prototype which is designed by the proposed optimizing GA approach.

   Active piezoelectric vibration controls for high speed switched reluctance machine
By OJEDA Xavier; LECRIVAIN Michel; MININGER Xavier; GABSI Mohamed; HLIOUI Sami [View]
[Download]

Abstract: This paper presents an active compensation method of mechanical and aerodynamic vibrations for high speed switched reluctance machines (SRM). This method consists in sticking two piezoelectric bars on the external surface of the stator. These ones are controlled considering the vibratory acceleration of a particular structure point. This method allows the reduction of the vibratory acceleration due to aerodynamic, mechanical and magnetic phenomena of the studied structure and then the decrease of generated acoustic noise.

EPE 2007 - Subtopic 10-1 - LS: Switched reluctance machines
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2007 - Conference > EPE 2007 - Topic 10: 'Electrical machines' > EPE 2007 - Subtopic 10-1 - LS: Switched reluctance machines
	[return to parent folder]

	Novel Analytical Calculation Method for the Non-Linear Psi-i-Characteristic of Switched-Reluctance-Machines in Arbitrary Rotor Positions By GERLING Dieter	[View] [Download]
Abstract: The non-linear Psi-i-characteristic is crucial for the design of switched reluctance machines. Known analytical calculations are based on complex models of the magnetic circuit or on functions needing a fitting procedure (using measured or FEM-calculated data). In this paper, a method is presented that requires only very few input data, which can be deduced easily from the geometry of the machine. Comparisons with measured data show an acceptable correlation for arbitrary rotor positions, qualifying this method to be used in the design stage of new drives.

	GA-Based Autonomous Electromagnetic Design and Experimental Verification of Two-Phase Switched Reluctance Compressor Drive By KANO Yoshiaki; MATSUI Nobuyuki; KOSAKA Takashi	[View] [Download]
Abstract: This paper presents an approach to Genetic Algorithm (GA)-based computer aided autonomous electromagnetic design of 2-phase switched reluctance motor drives. The proposed drive is designed for compressor drives of low-priced refrigerators as an alternative to existing brushless DC motor drives with rare-earth magnets. In the proposed design approach, three GA loops work to optimize the lamination design in order to meet the requirements for the target application while simultaneously fine-tuning the control parameters. To achieve the design optimization within a realistic timescale, the repeated-calculation required to obtain fitness evaluation does not use Finite Element Analysis (FEA), but consists of geometric flux tube-based non-linear magnetic analysis and a dynamic simulator based on an analytical expression of the magnetizing curves obtained from the non-linear magnetic analysis. The validity of the proposed design approach is verified through several comparative studies on the design results with FEA and the experimental studies using a 250W 2-phase 8/6 prototype which is designed by the proposed optimizing GA approach.

	Active piezoelectric vibration controls for high speed switched reluctance machine By OJEDA Xavier; LECRIVAIN Michel; MININGER Xavier; GABSI Mohamed; HLIOUI Sami	[View] [Download]
Abstract: This paper presents an active compensation method of mechanical and aerodynamic vibrations for high speed switched reluctance machines (SRM). This method consists in sticking two piezoelectric bars on the external surface of the stator. These ones are controlled considering the vibratory acceleration of a particular structure point. This method allows the reduction of the vibratory acceleration due to aerodynamic, mechanical and magnetic phenomena of the studied structure and then the decrease of generated acoustic noise.