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In order to reduce the low-order torque ripple of the permanent magnet synchronous motor, the method of suppressing pulsating torque by suppressing low harmonics of stator current is adopted. So, a harmonic suppression model based on harmonic injection method is established to suppressing low harmonics. But, the large amount of calculation, making the result of calculation is difficult to follow the...
According to the design characteristics of high speed permanent magnet synchronous motor, a 100kW, 50000r/min high speed permanent magnet synchronous motor is designed by 2D finite element method, and the electromagnetic characteristics of high speed permanent magnet synchronous motor at no-load and full-load condition are obtained by 2D finite element method. Because the sintered permanent magnet...
In view of the special structure of the novel PMSM with opposite-rotation dual rotors (ORDR) applied on the underwater vehicle counter-rotation propeller propulsion system, the mathematic model of ORDR machine was proposed. The magnetic-electric relationship based on equivalent magnetic loop and circuit was discussed. Through the simulations carried on the mathematic model, the influence on performance...
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