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This paper proposes an improved analytical model to calculate the inductances of interior permanent magnet (IPM) machines, equipped with either fractional slot concentrated windings or distributed windings. A modified stator magnetic motive force expression is also presented firstly. It has been proven that the normal method for inductance calculation by airgap permeance function and winding function...
This paper presents the study of a novel axial flux permanent magnet (AFPM) machine, which consist of the segmented stator and fractioned slot windings, with one rotor and double stator. In addition, the overhang effect of permanent magnet of the motor has been analyzed quantitatively. The overhang is used to enhance the force density in permanent magnet machine. According to the variation of overhang...
Line start permanent magnet motor (LSPM) is kind of a typical model of the high-efficiency motor at the constant velocity. In this paper, we will deal with the cost reduction design of a three-phase line start permanent magnet motor (LSPM) due to high cost of the permanent magnet (PM). Cost reduction can be effectively achieved by reducing PM volume through optimal method. Therefore, Original LSPM...
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