Brushless DC variable frequency motor and control system using brushless DC variable frequency motor

Abstract

The invention relates to the field of motors, and discloses a brushless DC variable frequency motor and a control system using the brushless DC variable frequency motor. The brushless DC frequency conversion motor includes a stator of an excitation winding and a rotor with trapezoidal slots on the inner surface; a plurality of same-sex NdFeB magnets are arranged in the trapezoidal slots; the outer surface of the stator is equipped with Ω Slotted iron core. The brushless DC frequency conversion motor of the present invention has the characteristics of high power and energy saving. The control system using a brushless DC variable frequency motor according to the present invention includes a microprocessor, a motor frequency converter, a display controller, an electronic differential, a vehicle speed setting and memory module, an electric vacuum pump brake booster control system, and an electric oil pump steering wheel Power boost control system and battery charger. The control system using the brushless DC variable frequency motor, when the motor vehicle uses the control system of the brushless DC variable frequency motor, has high power, energy saving and environmental protection.

Description

technical field [0001] The invention relates to the field of gasoline-electric hybrid vehicles, in particular to a brushless DC variable frequency motor and a control system using the brushless DC variable frequency motor. Background technique [0002] In today's increasingly developed society, with the continuous innovation of means of transportation, in addition to buses and subways, more and more people have purchased their own private cars as a means of transportation for commuting and going out on holidays, especially in today's private cars. Nowadays, more and more affordable, it is sought after by people, no matter what age group they are. However, in this era when private cars are becoming more and more popular, the performance requirements for private cars are also getting higher and higher. Not only must they save fuel and fuel, but also exhaust as little exhaust gas as possible, and at the same time meet the power requirements of car owners. Most of the fuel priv...

AI Technical Summary

Problems solved by technology

However, since the permanent magnets pasted on the outer rotor are arranged in a single row along the inner surface of the outer rotor, the dynamic rate of the final brushless variable frequency motor cannot be made very large, currently only 800W

If you want to make a high-power brushless DC variable frequency motor, you must use many same-sex strong magnets to fix on the same pole surface. Due to the attraction of opposite-sex strong magnets on both sides of the circumference, or the same-sex repulsion in the direction of the cylinder The repulsion force cannot be pasted only by "universal glue", and it is very difficult in the pasting operation. At the same time, during the operation process, due to the attraction and repulsion, the magnet is prone to shift, which eventually leads to The motor appears eddy current during rotation or cannot achieve energy-saving effect

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