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Axial Field Permanent Magnet Motor (AFPM) can be easily integrated into wheel-hub motor of Electrical Vehicle (EV) as impact structure and light weight. Improved hexagonal asymmetry coil is presented in Printed Circuit Board (PCB) stator of coreless AFPM. Geometry parameters of coil shape is optimized. According to the structure characteristics of coreless AFPM, dimension formulas of PCB coil are...
The disc coreless permanent magnet synchronous motor has several advantages, such as strong overload capacity, zero cogging torque, sinusoidal back EMF, and linear parameters. The motors tend to have low inductance because of the coreless structure. There is a stringent current ripple in the motor winding that produces unacceptable torque ripple if driven from conventional drivers with a pulse width...
With the widely used of permanent magnet synchronous motor (PMSM), it is required to have a higher performance. Improving the key parameters of permanent magnet synchronous motor is the main way to optimize the design. As the reactance parameters are the important basis for the design of permanent magnet synchronous motor, the reactance parameters are analyzed in this paper. The reactance parameters...
The problem of electromagnetic field in permanent magnet synchronous motor(PMSM) used for hybrid electric vehicle(HEV) is discussed in this paper. The electromagnetic field distribution, air-gap magnetic flux density and the magnetic leakage factors under no-load conditions were analyzed with finite element method(FEM). The result is very useful for optimizing the design of the motor.
In this paper, on the base of comparing with switched reluctance motor (SRM), a new doubly salient permanent-magnet machine (DSPM) and its structure and running principle were introduced. Because of the high nonlinearities of the DSPM motor, the finite element method (FEM) was adopted to analyze the static characteristics under different armature currents and different thickness of permanent-magnet...
There are many inherent advantages on multi-phase PMSM, its prospect is very optimistic. A novel six-phase disc permanent magnetic synchronous motor which adopts a one-rotor-two-stators configuration is presented. The principle and structure are depicted. FEM is used to analyze the no-load magnetic field characteristics of this motor, and this paper contrasts the effect of permanent magnet thickness...
A wedgy airgap disk coreless PMSM (permanent magnet synchronous motor) is proposed, consisting of only stator (armature) winding and twin rotor system a double sided rotor with internal stator. No stator and rotor ferromagnetic cores have been used. And the axial air gap thickness of this PMSM in inner diameters equals to 8 mm, while the axial air gap thickness in outer diameters is 5.4 mm. The FEM...
The paper deals with a new disk type coreless PMSM (permanent magnet synchronous motor), consisting of only stator winding and twin rotor system a double sided rotor with internal stator. To obtain required value of the magnetic flux density in the air gap, PMs have been arranged in "Halbach array". At the same time, to make the magnetic flux density wave going closer to sine wave, the design...
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