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Centrifugal variable flux permanent magnet synchronous motor

A technology of permanent magnet synchronous motor and variable magnetic flux, which is applied to synchronous machines, synchronous motors with stationary armatures and rotating magnets, and parts of synchronous machines. Problems such as the limited range of magnetic speed expansion, etc., to achieve good magnetic adjustment effect and no additional loss effect

Active Publication Date: 2019-02-01
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing magnetic flux leakage mechanical modulation permanent magnet motor, the speed expansion range of the motor is limited in field weakening and the utilization rate of the rotor core and the mechanical strength are low.

Method used

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  • Centrifugal variable flux permanent magnet synchronous motor
  • Centrifugal variable flux permanent magnet synchronous motor
  • Centrifugal variable flux permanent magnet synchronous motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] Please refer to figure 1 , the present embodiment provides a centrifugal variable flux permanent magnet synchronous motor 100, including a motor body and a mechanical magnetic adjustment device.

[0043] In this embodiment, the motor body includes an inner stator 1 and an outer rotor 2. The inner stator 1 includes a stator core 11 and an armature winding 12 wound on the stator core 11. The stator core 11 is a salient pole structure with a simple structure; the outer rotor 2 Comprising a plurality of rotor cores 22 and a plurality of permanent magnets 23, the permanent magnets 23 are spaced apart from the rotor cores 22, and the permanent magnets 23 can move relative to the rotor cores 22, and the plurality of rotor cores 22 are connected to each other to form an annular rotor core group 21, The magnetic poles of two adjacent permanent magnets 23 located at the same end of the rotor core group 21 are different. The mechanical magnetic adjustment device includes a turnta...

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Abstract

The present invention relates to a centrifugal variable flux permanent magnet synchronous motor, belonging to the technical field of permanent magnet synchronous motors. A permanent magnet is locatedbetween two adjacent rotor cores and is slidingly connected with the rotor cores; one side, close to a rotor core set, of a rotary table is provided with a plurality of magnetic separation blocks which are extended towards the rotor core set along the axial direction of the rotary table and are configured to shield the permanent magnet, a plurality of racks and a plurality of racks are slidingly arranged on a hub to rotate the hub, the first racks can be moved to be engaged with the second racks along the radial direction of the hub and can drive the movement of the second racks, the first racks move to allow the rotary table to rotate relative to the hub to separate from the magnetic separation blocks from the permanent magnet, and the second racks move to allow the permanent magnet to move relative to the rotor cores. The centrifugal variable flux permanent magnet synchronous motor has a good flux regulation effect and can achieve dual-way regulation of a magnetic field with no needfor drive of external energy and additional loss and without influence of energy conversion efficiency of the motor.

Description

technical field [0001] The invention relates to the technical field of permanent magnet synchronous motors, in particular to a centrifugal variable flux permanent magnet synchronous motor. Background technique [0002] With the continuous improvement of the comprehensive utilization and development of new energy and renewable energy, whether it can provide stable power quality or a wide range of motor speed regulation has gradually become a key factor in determining energy conversion efficiency, and the flexible adjustment of the motor magnetic field is It is one of the important technical means to ensure efficient energy conversion. [0003] As the position of the motor rotor changes, the flux switching motor automatically switches its path in the stator and rotor, so that the polarity and magnitude of the magnetic flux passing through the coil changes, and an alternating induced electromotive force is generated. This type of motor has a volume Due to the advantages of sma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/22H02K1/27H02K21/02
CPCH02K1/2786H02K21/029H02K21/227
Inventor 刘细平张志轩黄朝志肖娟娟徐慧王凯
Owner JIANGXI UNIV OF SCI & TECH
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