Three phase AC permanent magnet synchronous motor

A permanent magnet synchronous, three-phase AC technology, applied in synchronous motors with static armatures and rotating magnets, magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., can solve problems such as motor soft start, Achieve the effect of reducing induced current, good starting performance, and reducing temperature rise

Inactive Publication Date: 2003-11-26
刘硕成 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention improves the starting performance of the existing motor by improving the stator winding, rotor and stator lami

Method used

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  • Three phase AC permanent magnet synchronous motor
  • Three phase AC permanent magnet synchronous motor
  • Three phase AC permanent magnet synchronous motor

Examples

Experimental program
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Embodiment Construction

[0020] figure 1 In , a wiring method of a three-phase sinusoidal winding with each pole phase arranged in an extended-delta or star-delta arrangement is given. The phase potentials of the three-phase sinusoidal windings are different from each other by an electrical angle of 120°. exist figure 1 An embodiment of the rotor is also given in , the rotor electromagnet is a quadrupole, and is arranged on the surface of the rotor, that is, embedded in the surface structure. The conductive metal strips are parallel to the axial direction of the rotor and are embedded in the outer layer of the rotor.

[0021] figure 2 , gives the same figure 1 Basically the same implementation, the only difference is that figure 1 are arranged in stars and angles in a polar phase group, figure 2 There are both star windings and angle windings in each slot of a pole phase group.

[0022] image 3 In , the schematic diagram of the three-phase winding of the stator according to the two-plane con...

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PUM

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Abstract

This invention discloses an improved three-phase AC permasyn motor, the stator winding of which can be extended-delta or star-delta connection mode, the wiring pattern can be single-double lap winding or single-double layer lap concentric winding mode. The said winding of the extened-delta lags behind the star winding by 30 deg. space electric angle when arrayed in the stator slot; and the star winding of stan-delta lags behind the delta winding by 30 deg. when arrayed in the stator slot. Tilt of the stator lamination slot is 1:1.25-1.45, magnetic flux density generated by the permament magnet in the rotor should be 3 times that of stator electromagnetic iron, the total sectional area of the conductive metal strips is designed as 7 times that of the machine rated current conductive, and metal strip numbers are 0.83-0.92 that of the stator core slots.

Description

technical field [0001] The invention relates to a three-phase alternating current permanent magnet synchronous motor. Background technique [0002] The three-phase AC permanent magnet synchronous motor is composed of shell, front bearing, rear bearing, front end cover, rear end, stator winding, permanent magnet rotor, fan blade, fan blade cover and junction box. Although this type of electric motor is continuously improved and perfected in technology, there is always the phenomenon of "crash" during the starting process, which will cause mechanical damage to the equipment driven by the electric motor during starting. SUMMARY OF THE INVENTION [0003] The invention improves the starting performance of the existing motor by improving the stator winding, rotor and stator lamination mode of the existing three-phase alternating current permanent magnet synchronous motor, and solves the problems of soft start and power saving of the motor. [0004] The purpose of the present in...

Claims

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Application Information

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IPC IPC(8): H02K1/27H02K3/28H02K21/14
Inventor 刘硕成邢伟
Owner 刘硕成
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