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Low Torque Ripple High Speed ​​Axial Flux Surface Mount Permanent Magnet Motor

A technology of torque pulsation and axial flux, applied in the direction of magnetic circuit rotating parts, magnetic circuit shape/style/structure, magnetic circuit, etc., can solve the problem of low motor power factor and efficiency, large rotor loss, and large mechanical vibration and other issues to achieve the effect of improving efficiency, reducing high-frequency loss, and low loss

Active Publication Date: 2021-11-09
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the rotor structure of the high-speed induction motor is relatively simple, which can withstand large centrifugal force and high temperature resistance, but the rotor loss is large, resulting in low power factor and efficiency of the motor; high-speed reluctance motors include switched reluctance motors and synchronous reluctance motors, and the rotor structure is simple , high mechanical strength, but high-speed reluctance motors have disadvantages such as high torque ripple, large mechanical vibration and large noise
Although the high-speed permanent magnet motor (radial flux motor) has the advantages of high power density, high power factor and high efficiency, the mechanical strength of the rotor structure and the existence of the permanent magnet sheath limit the performance improvement

Method used

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  • Low Torque Ripple High Speed ​​Axial Flux Surface Mount Permanent Magnet Motor
  • Low Torque Ripple High Speed ​​Axial Flux Surface Mount Permanent Magnet Motor

Examples

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Embodiment 1

[0033] This embodiment discloses a new low-torque pulsation high-speed axial flux surface-mounted permanent magnet motor, which is mainly composed of an upper permanent magnet rotor 1, a lower permanent magnet rotor 4 and a stator 3, and the stator 3 is on the upper permanent magnet rotor 1 And in the middle of the lower permanent magnet rotor 4.

[0034] see figure 1 The stator 3 of the present disclosure includes a stator core 3-1 and a stator winding 3-2. The stator core 3-1 adopts a slotless stator structure and is formed by axially laminating only silicon steel sheets. The stator winding 3-2 is a three-phase winding, and is uniformly wound on the stator core 3-1 along the vertical direction of the circumference of the stator core 3-1 using flat winding wires. In the figure, "+" represents the incoming direction of each phase winding, "-" represents the outgoing direction of each phase winding, A, B, and C represent the three phases of the stator winding 3-2 respectively,...

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Abstract

The disclosure proposes a low-torque pulsation high-speed axial flux surface-mounted permanent magnet motor, including: two axially arranged rotors and a stator located between the two rotors, and the distance between the two rotors and the stator is not equal , that is, the length of the air gap between the two rotors and the stator is not equal. The structure of the high-speed axial flux permanent magnet motor makes the direction of the centrifugal force and the electromagnetic tensile stress on the rotor orthogonal, that is, the permanent magnet sheath does not affect the axial effective air gap length, and the design of the permanent magnet and its sheath is more diverse. , which is conducive to finding the best design solution.

Description

technical field [0001] The disclosure belongs to the technical field of motors, in particular to a low-torque pulsation high-speed axial flux surface-mounted permanent magnet motor. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] High-speed motors are widely used in various industrial products because of their high power density, high efficiency, small size, and light weight. In some electric vehicle engine systems, a high-speed motor can be coaxially arranged with the turbine of the turbocharger and the impeller of the compressor. When starting and shifting electric vehicles, if there is insufficient energy in the exhaust gas flow, the high-speed electric motor can act as an electric motor to accelerate the compressor to the required speed, thereby reducing turbo lag and improving drivability. And if there is residual energy in the exh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/02H02K1/12H02K3/02H02K3/28H02K1/27
CPCH02K1/12H02K1/2793H02K3/02H02K3/28H02K16/02H02K2201/03H02K2201/12H02K2213/03
Inventor 赵文良王永基虞铭杰王秀和
Owner SHANDONG UNIV
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