Axial permanent magnet spherical surface magnetic levitation flywheel motor

Abstract

The invention relates to an axial permanent magnet spherical surface magnetic levitation flywheel motor, belonging to the technical field of magnetic levitation motors. The axial permanent magnet spherical surface magnetic levitation flywheel motor comprises a flywheel, a rotor and a stator. The flywheel and the rotor form an integral body, the stator and the rotor are divided into an A phase anda B phase in an axial direction, and axial reverse magnetizing permanent magnets are respectively clamped between a rotor A-phase magnetic conducting ring and a rotor B-phase magnetic conducting ringand between a stator A-phase magnetic conducting ring and a stator B-phase magnetic conducting ring; the rotor comprises a rotor A-phase spherical surface iron core, a rotor B-phase spherical surfaceiron core, a rotor permanent magnet, the rotor A-phase magnetic conducting ring and the rotor B-phase magnetic conducting ring; the stator comprises a stator A-phase spherical surface iron core, a stator B-phase spherical surface iron core, a stator permanent magnet, the stator A-phase magnetic conducting ring, the stator B-phase magnetic conducting ring and a stator sleeve; each-phase stator spherical surface iron core is provided with a wide-tooth suspension poles, narrow-tooth torque poles and magnetic isolating bodies, and the suspension poles and the torque poles employ pole shoe structures and are respectively wound with suspension control coils and torque control coils. The axial permanent magnet spherical surface magnetic levitation flywheel motor improves the global uniformity ofair gap magnetic density, achieves the shaftless support of the flywheel and inhibits the gyroscopic effect; meanwhile, the system integration level, the operation efficiency and the reliability are improved, and the decoupling of the suspension magnetic circuit and the torque magnetic circuit is achieved.

Description

technical field [0001] The invention discloses an axial permanent magnet spherical magnetic suspension flywheel motor, which belongs to the technical field of magnetic suspension motors. Background technique [0002] Due to energy and environmental issues, electric vehicles are developing at an unprecedented rate. Power batteries are the source of power and a key factor restricting the development of electric vehicles. As an independent power source, it is difficult for the battery to meet the charging and discharging engineering requirements of the vehicle's frequent start and stop instantaneous high power (the peak power required for the vehicle to start and accelerate is 30 times that of the constant speed driving), and its performance and life are affected by the vehicle's operating environment temperature, charge and discharge depth and cycle limits. Flywheel batteries are highly valued at home and abroad for their advantages of high frequency and high power, energy sa...

AI Technical Summary

Problems solved by technology

However, looking at home and abroad, the current practical engineering application of magnetic levitation motors is not very popular. The main reason is that there is a complex electromagnetic strong coupling relationship between the internal winding-magnetic circuit-electromagnetic force of the motor, and the analysis and high-speed control of the motor are difficult. This has become the main bottleneck restricting this technology from entering engineering applications

At the same time, it is used for vehicle flywheel batteries. The limited vehicle installation space and complex vehicle driving environment and road conditions make it face strong gyro effect, external disturbance interference and reliability problems.

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