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Synchronous Rotating Machines with Hybrid Excitation Rotors

A rotating motor and mixed excitation technology, which is applied to synchronous machines, synchronous machine parts, magnetic circuit rotating parts, etc., can solve problems such as motor demagnetization

Active Publication Date: 2015-07-29
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, motors with excitation caused by permanent magnets only exhibit flux-out problems

Method used

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  • Synchronous Rotating Machines with Hybrid Excitation Rotors
  • Synchronous Rotating Machines with Hybrid Excitation Rotors
  • Synchronous Rotating Machines with Hybrid Excitation Rotors

Examples

Experimental program
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Effect test

Embodiment Construction

[0024] figure 1 The structure of Embodiment 1 of a rotating electric machine with hybrid excitation according to the present invention, which includes a stator 10 and a rotor 11, is shown. The rotor 11 of the electric machine 1 comprises a plurality of alternating north and south salient poles formed by a plurality of permanent magnets PM and a plurality of field coils EC.

[0025] A specific embodiment of such an electric machine according to the invention is, for example, an electric motor / generator with 8-10 KW for application in motor vehicles of the type known as "mild hybrid". In its electric motor mode of operation, such an electric machine can be designed for starting the internal combustion engine, torque assistance of the internal combustion engine and low speed electric traction of the vehicle. In its generator mode of operation, the electric machine can operate in normal alternator mode or in regenerative braking mode.

[0026] A specific form of embodiment of th...

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PUM

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Abstract

A machine (1) having a rotor (11) including permanent magnets (PM) and field coils (EC). The magnets are housed in first axial recesses (E1) distributed within a circumferential portion of the magnetic body, thus defining circumferential polar sections. The coils are housed in second axial recesses (E2) distributed within an intermediate portion of the magnetic body. The circumferential polar section includes a third recess (E3), and a portion of the magnetic body forming a bridge having a height of around 0.7 mm to around 2 mm is retained between an apex of the recess and an outer pole face.

Description

technical field [0001] The invention relates to a synchronous rotating electrical machine having a rotor equipped with permanent magnets and field coils. More particularly, the invention relates to electric machines of this type for applications such as electric traction motors and / or generators in electric vehicles and hybrid motor vehicles. Background technique [0002] Due to their increased performance in terms of specific and volumetric power output, today synchronous permanent magnet electric machines find widespread application in the field of motor vehicles. Furthermore, the large-scale availability of rare earth permanent magnets with acceptable economics makes these electric machines a viable option for new generations of motor vehicles. [0003] These motors can be produced in a wide range of powers and speeds and are used in "all electric" types of vehicles as well as in low CO 2 Applications are found in emissions vehicles. [0004] A "mild hybrid" applicatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K21/04H02K1/27
CPCH02K1/2766H02K2213/03H02K21/042H02K1/27H02K21/04
Inventor J-C.马特J-C.米波L.李A.福吉亚
Owner VALEO EQUIP ELECTRIC MOTEUR