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In this paper an algorithm for non-linear magnetic analysis of surface-mounted permanent-magnet machines is presented. It is based on the equivalent magnetic circuit method and can be used as a useful design and computing tool. The duplication of an elementary cell of the machine allows building whatever typology of windings and ampere-turns distribution in a pole pair. The direct modification of...
In this paper, a numerical technique for the magnetic design improvement of a 6 poles-2hp-1200rpm axial flux IPM motor concerning an existing drive circuit is proposed. The design objectives are introduced as the minimum torque ripple, the minimum RMS value of phase currents, and the minimum total harmonic distortion of phase currents. These single objectives together with the current density and...
Simple analytical models of the switched reluctance motors (SRM's) can be very useful in real-time control if they are quite accurate. Such a simplified analytical model, based on geometry data and aligned flux linkage characteristic calculated via 2D-FEM is developed in the paper and compared with some other models which are also quite easy to be implemented in a real-time control system of a switched...
Summary form of only given: New design methodology using the numerically identified the synthetic flux linkages for Interior Permanent Magnet Synchronous Motor(IPMSM) with multi-layered PMs is proposed. Furthermore, the cross-magnetization between the d-q axis in IPMSM mainly due to the magnetic saturation is investigated via the adopted synthetic flux linkages. The proposed design methodology using...
This paper investigates the change of maximum power of an Interior Permanent Magnet Synchronous Motor (IPMSM) according to the rotor rib without the alteration of design factors related to the motor. As increasing the thickness of a rotor rib, it relieves stress concentration when the rotor rotates at high speed. However, the amount of leakage flux which comes from the PM makes the performance reduction...
This paper proposes a method of characteristics calculation for permanent magnet synchronous machines (PMSMs) using static finite element analysis (FEA) and steady-state dq-axis equations. The method calculates characteristics such as torque, voltage, current, inductances, etc. under any balanced steady-state load conditions. Various types of input condition can be selected to identify the load condition...
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