Brushless dual-electromechanical-port permanent magnet motor based on vernier effect

Abstract

The invention discloses a brushless dual-electromechanical-port permanent magnet motor based on the vernier effect, and belongs to the permanent magnet motor technology. The motor comprises a stator, an outer rotor and an inner rotor which are coaxially and sequentially nested from outside to inside, the stator is of a split tooth structure, main teeth extend out of yoke parts of the stator, yoke parts extend out of the tops of the main teeth, auxiliary teeth extend out of each yoke part, and the auxiliary teeth are evenly distributed in the circumferential direction; the auxiliary teeth are of open slot structures; the two armature windings are placed in the stator, one winding is placed on the main teeth and called as a magnetic gear winding, the other winding is placed on the auxiliary teeth and called as a vernier winding, and the two windings are unequal in number of pole pairs and serve as two electric ports of the motor. The double-electromechanical-port motor provided by the invention is composed of the vernier motor and the magnetic gear motor, the vernier motor part works based on the magnetic field modulation principle, the effect of adjusting torque is achieved, and the air gap magnetic flux density is higher. According to the invention, the torque output capability of the motor is improved, and the torque density of the system is increased.

Description

technical field [0001] The invention belongs to the technical field of permanent magnet motors, and more specifically relates to a brushless dual-electromechanical port permanent magnet motor based on a high vernier effect. Background technique [0002] The hybrid power system, through the complementary advantages between the electric drive system and the engine, significantly improves the fuel efficiency of the engine and reduces its pollution, and at the same time cleverly avoids the low energy density, short life and high cost of the battery in the pure electric drive system technical bottlenecks. Therefore, it has high application value in the field of transportation. [0003] The hybrid hybrid system combines the advantages of series and parallel systems. Its engine has high efficiency and low system energy consumption. At the same time, it has the characteristics that the engine and the electric motor can be driven together or separately in the parallel structure. Un...

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Problems solved by technology

[0006] Aiming at the defects of the prior art, the object of the present invention is to provide a brushless dual electromechanical port permanent magnet motor based on the vernier effect, aiming to solve the problem of the equivalent air gap of the existing dual mechanical port permanent magnet motor based on the principle of magnetic field modulation. Long length, resulting in low torque of the conventional permanent magnet motor part, and poor torque regulation ability of the motor system

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