A double-stator hybrid excitation motor

A hybrid excitation motor, double stator technology, applied in synchronous machines, electromechanical devices, electrical components, etc., can solve the problems of small constant power speed regulation range, poor magnetic weakening effect, etc., to reduce equivalent reluctance and improve utilization. , the effect of improving the output power

Active Publication Date: 2019-12-31
LELING HETIAN ELECTRIC VEHICLE PARTS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to effectively overcome the disadvantages of poor magnetic field weakening effect and small constant power speed regulation range of existing permanent magnet flux switching motors, and proposes a dual-stator hybrid excitation motor with a new topology to realize the air gap magnetic field of the motor Smooth adjustment and control

Method used

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  • A double-stator hybrid excitation motor
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  • A double-stator hybrid excitation motor

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Experimental program
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Effect test

Embodiment 1

[0026] see figure 1 , the present invention includes an outer stator 1, an intermediate rotor, an inner stator and a rotating shaft 15, wherein the intermediate rotor is formed by staggering and fixedly connecting 10 rotor magnetic conductive blocks 3 and non-magnetic conductive materials 4 of the same number along the circumferential direction, and the inner stator It consists of 12 inner stator cores 5 with the same fan-shaped structure closely attached to each other. The inner stator, the rotor and the outer stator 1 are coaxially sheathed on the outside of the rotating shaft 15 in sequence. The outer stator 1, the rotor magnetic block 3 and the inner stator core 5 are all laminated with silicon steel sheets.

[0027] The outer stator 1 is composed of an outer stator yoke 11 and outer stator teeth 12, and the outer stator yoke 11 is evenly arranged with 12 outer stator teeth 12 along the circumferential direction. The outer stator slots are formed between two adjacent ou...

Embodiment 2

[0043] see Figure 8 and Figure 9 The difference between Embodiment 2 and Embodiment 1 of the present invention is that only one fan-shaped inner stator is opened on the inner stator core 5 between the inner permanent magnet 6 and the outer permanent magnet 6 on the same inner stator core 5 Slot 14. The centerline of the one inner stator slot 14 also coincides with the centerline of the inner stator core 5 , and the fan-shaped circle center of the inner stator slot 14 also coincides with the circle center of the inner stator core 5 . The opening angle of the inner stator slot 14 is still β =30 o , the inner edge of the permanent magnet 6 on the outside is tangent to the outer edge of the one inner stator slot 14, but there is a distance between the outer edge of the permanent magnet 6 on the inner side and the inner edge of the one inner stator slot 14, the inner stator slot The inner stator core 5 between 14 and the permanent magnet 6 on the inner side is a magnetically ...

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Abstract

The invention discloses a double-stator hybrid excitation motor. The middle rotor is composed of 10 rotor magnetic conductive blocks and non-magnetic conductive materials of the same number, which are staggered and fixedly arranged along the circumferential direction. The inner stator is composed of 12 inner stator cores with the same sector-shaped structure. The sides are tightly fitted. The same permanent magnets are fixedly embedded on the inner and outer sides of the center line of each inner stator core. The two inner and outer permanent magnets on the same inner stator core are both tangentially magnetized. The permanent magnets on the sub-core are magnetized in opposite directions; there are fan-shaped inner stator slots on the inner stator core between the inner and outer permanent magnets on the same inner stator core, and a certain size of the core is left on the side of the excitation winding slot. The magnetic permeable bridge uses the magnetic flux leakage of the permanent magnet to make the magnetic permeable bridge work in a relatively saturated state. Through the reasonable selection of the size of the saturated magnetic permeable bridge, the magnetic permeability of the saturated magnetic permeable bridge can be made much greater than the magnetic permeability of the permanent magnet, as The electric field winding provides an additional parallel magnetic shunt.

Description

technical field [0001] The invention belongs to the field of electrical engineering and motors, and particularly refers to a hybrid excitation motor with wide speed regulation, high efficiency, high power density and other driving performances, which is suitable for traction of hybrid vehicles, electric vehicles and the like. Background technique [0002] The permanent magnets and armature windings of the permanent magnet switched flux motor are placed in the stator, and the rotor is only an iron core with salient poles, without windings, slip rings, and brushes. Compared with rotor permanent magnet motors, permanent magnet flux switching motors have the advantages of simple rotor structure, easy cooling of permanent magnets, and high power density. However, similar to ordinary permanent magnet motors, permanent magnet flux switching motors have inherent problems such as difficult adjustment of the air gap magnetic field, which limits the constant power operating range of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/04H02K21/04
CPCH02K16/04H02K21/042
Inventor 杜怿汪奇肖凤朱孝勇全力张超左月飞刘文生
Owner LELING HETIAN ELECTRIC VEHICLE PARTS CO LTD
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