Parallel type double-stator hybrid excitation permanent magnet motor

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, more specifically, to a parallel dual-stator hybrid excitation permanent magnet motor, which is suitable for low-speed high-torque and high-speed magnetic modulation operation occasions. Background technique [0002] The driving motor is one of the important technologies in the application field of hybrid electric vehicles and other new energy vehicles. The driving motors of hybrid electric vehicles need to have a wide speed range, efficient operating area and high energy utilization. Ordinary permanent magnet motors have simple structure and high working efficiency, but due to their constant torque characteristics, it is difficult to meet the requirements of wide speed range, efficient operating area and high energy utilization rate, so it is difficult to meet the high performance requirements of hybrid electric vehicle motors . [0003] With the continuous development of motor technology, parallel d...

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

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