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A Parallel Dual-Stator Hybrid Excitation Permanent Magnet Motor

A hybrid excitation, permanent magnet motor technology, applied in electromechanical devices, electrical components, magnetic circuit rotating parts, etc., can solve problems such as low speed and large torque, and achieve high motor speed, high reliability, and high energy utilization. Effect

Active Publication Date: 2018-12-21
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies existing in the existing parallel double-stator permanent magnet motor, and to provide a parallel double-stator hybrid excitation permanent magnet motor. Adopting the technical scheme of the present invention, it not only has the characteristics of low speed and large torque, but also has High-speed operation characteristics, and can solve the problem of high efficiency requirements in the wide speed range of the drive motor, and can improve the energy utilization rate of the system. It has the characteristics of good dynamic performance, high overall operating efficiency, high energy utilization rate and high reliability. It is used in new energy vehicles. The drive motor field has a good application prospect

Method used

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  • A Parallel Dual-Stator Hybrid Excitation Permanent Magnet Motor
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  • A Parallel Dual-Stator Hybrid Excitation Permanent Magnet Motor

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Embodiment

[0035] Combine figure 1 As shown, a parallel dual-stator hybrid excitation permanent magnet motor of this embodiment includes a housing 1, a motor group A and a motor group B arranged in parallel in the housing 1, wherein the motor group A includes a stator A 2 and a rotor A 4. The stator A2 is fixed in the housing 1, the rotor A4 is located in the stator A2 and is mounted on the shaft 10, the stator A2 has a high back-EMF winding A3, and the rotor A4 has a permanent magnet A5. A 5 is a neodymium iron boron permanent magnet. Motor group A chooses a low-speed, high-torque operating point as rated operating point A, and when the speed of motor group A exceeds rated operating point A, field weakening control is adopted for motor group A It can not only obtain a large starting torque, but also increase the motor speed and expand the constant power operation area. The motor group B includes a stator B 6 and a rotor B 8. The stator B 6 is fixed in the housing 1, and the rotor B 8 is ...

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Abstract

The invention discloses a parallel type double-stator hybrid excitation permanent magnet motor, and belongs to the technical field of permanent magnet motors. The parallel type double-stator hybrid excitation permanent magnet motor comprises a shell, a motor set A and a motor set B, and is characterized in that the motor set A and the motor set B are arranged in the shell in a parallel mode, a stator A of the motor set A is provided with a winding A with a high back electromotive force, a rotor A is provided with an NdFeB permanent magnet, the motor set A selects an operating point with low rotating speed and high torque to act as a rated operating point A, and control is performed by adopting a weak magnetic control mode when the rotating speed exceeds the rated operating point A; and a stator B of the motor set B is provided with a winding with a low back electromotive force, a rotor B is provided with an AlNiCo permanent magnet or a ferrite permanent magnet, the motor set B selects an operating point with high rotating speed and capable of meeting the high-speed load bearing capacity to act as a rated operating point B, and control is performed by adopting a magnetic link control mode when the rotating speed exceeds the rated operating point B. The parallel type double-stator hybrid excitation permanent magnet motor not only has the characteristics of low speed and high torque, but also has the characteristic of high-speed running. Meanwhile, the parallel type double-stator hybrid excitation permanent magnet motor has the characteristics of wide rotating speed range and high efficiency, and can improve the energy utilization rate of a system.

Description

Technical field [0001] The invention relates to a permanent magnet motor, and more specifically, to a parallel dual-stator hybrid excitation permanent magnet motor, which is suitable for low-speed high-torque and high-speed magnetization operation occasions. Background technique [0002] The drive motor is one of the important technologies in the application field of new energy vehicles such as hybrid electric vehicles. The drive motor for hybrid electric vehicles needs to have a wide speed range, efficient operation area and high energy efficiency. The ordinary permanent magnet motor has a simple structure and high working efficiency, but due to its constant torque characteristics, it is difficult to meet the requirements of wide speed range, efficient operation area and high energy efficiency, so it is difficult to meet the high performance requirements of hybrid electric vehicles. . [0003] With the continuous development of motor technology, parallel double-stator permanent m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/00H02K1/16H02K1/27
CPCH02K1/16H02K1/27H02K16/00
Inventor 陈坤华孙玉坤吉奕张冬梅
Owner JIANGSU UNIV
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