Reduction of the torque ripple in Brushless Doubly-Fed Machine

In this paper, a new structure for the rotor of the Brushless Doubly-Fed Machine (BDFM) is introduced to reduce the machine's torque ripple. The ripple has a considerable effect on the machine start up. At the first section of the paper, analytical expressions for the air gap permeance distribu...

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Bibliographische Detailangaben
Hauptverfasser:	Gorginpour, H., Jandaghi, B., Oraee, A., Saket, M. A., Ahmadian, M., Oraee, H.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Air gap MMF brushless doubly fed machines Conductors Forging Rotors skew effect stator to rotor mutual inductance Stator windings Torque torque ripple Windings
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Beschreibung
Zusammenfassung:	In this paper, a new structure for the rotor of the Brushless Doubly-Fed Machine (BDFM) is introduced to reduce the machine's torque ripple. The ripple has a considerable effect on the machine start up. At the first section of the paper, analytical expressions for the air gap permeance distribution, the air gap MMF distribution, cogging torque and back EMF are presented. Then, the effects of skewing the rotor loops are analyzed. Finally, the relation between non-skewed quantities and their values in skewed coordinate are introduced.