Parallel type mixing excitation switch magnetic linkage motor

A technology of mixed excitation and switching flux linkage, which is applied in the field of excitation motor and hybrid excitation motor, can solve the problems of air gap magnetic field adjustment of permanent magnet switching flux linkage motor, etc., and achieve the effect of wide application prospect and high sine degree

Inactive Publication Date: 2009-08-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0008] In order to solve the air gap magnetic field adjustment problem of the permanent magnet switch flux linkage motor, the present invention proposes a parallel hybrid excitation switch flux linkage motor

Method used

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  • Parallel type mixing excitation switch magnetic linkage motor

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Embodiment Construction

[0012] Such as figure 1 As shown, a parallel hybrid excitation switching flux linkage motor includes a salient pole stator, an armature winding, an excitation winding and a salient pole rotor 3, wherein the salient pole stator consists of 12 U-shaped stator iron blocks 2 and 12 bar-shaped The permanent magnet 1 is combined, and a bar-shaped permanent magnet 1 is embedded between every two U-shaped stator iron blocks 2. The length of the bar-shaped permanent magnet 1 is less than the length of the U-shaped arm of the U-shaped stator iron block 2, so that it can be placed on it Winding excitation coils; bar-shaped permanent magnets 1 are wound with excitation coils along its length direction. The excitation coils are concentrated windings, and 12 excitation coils are connected in series end to end to form a single-phase excitation winding; the phase of two adjacent U-shaped stator iron blocks 2 Concentrated armature coils are wound on adjacent U-shaped arms, the first concentrat...

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Abstract

The invention discloses a magnetic linkage motor of a parallel type composite excitation switch, pertaining to the field of composite excitation motors. The structure of the magnetic linkage motor comprises: a salient pole stator, an armature winding, an excitation winding and a salient pole rotor; wherein, the salient pole stator is formed by a U-shaped stator briquette and a bar-shaped permanent-magnet; an excitation coil is winded on the bar-shaped permanent magnet and a single-phase excitation winding is formed by 12 series-connected excitation coils; an integrated armature coil is winded on an adjacent U-shaped arm of the adjacent U-shaped stator briquette; and three-phase armature winding is formed. Under the condition of keeping the excitation magnetic structure of the permanent magnetic switch magnetic flux linkage motor to be unchanged, the magnetic linkage motor regulates the size of the air-gap magnetic field by introducing the electric excitation winding so as to improve the rotational speed operating range and the weakening magnet ability of the motor. The method has the advantages of high efficiency, high power density, high reliability and easy regulation on counter potential waveform sine and air-gap field and has wide application prospect.

Description

technical field [0001] The invention relates to an excitation motor, in particular to a parallel hybrid excitation switch flux linkage motor, which belongs to the field of hybrid excitation motors. Background technique [0002] In the field of motors, permanent magnet motors have absolute advantages in terms of efficiency, power density, and torque density, and are more suitable for occasions that have strict requirements on volume and power. However, the permanent magnets are placed on the rotor, and there are the following problems during high-power / wide-speed operation: 1. The centrifugal force is large during high-speed rotation, and the permanent magnets must be protected; 2. The heat dissipation of the permanent magnets is difficult; 3. The magnetic field of the permanent magnets and the electric current The armature magnetic field is a series structure, and the permanent magnet is greatly affected by the armature magnetic field, and irreversible demagnetization will o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/17H02K3/46H02K3/28H02K1/24
Inventor 王宇邓智泉王晓琳
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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