Motor and its control method

Abstract

The motor of the present invention has multiple independent coils, the power supply direction of each coil can be selectively controlled through the current control module, and the most suitable coil combination can be selected as the phase winding according to the working condition of the motor. It is beneficial to improve the adaptability of the motor, so that the motor can have higher working efficiency under different working conditions. The control of the coil has high independence and combination, and it can work selectively in sections, so that the coil can be rotated to work, reducing the concentration of coil heat, which is beneficial to the heat dissipation inside the motor, thereby improving the overall working performance of the motor.

Description

technical field [0001] The invention relates to a motor and a control method thereof. Background technique [0002] A motor is a common driving device in daily life, which can convert electrical energy into mechanical energy. The motor includes a stator assembly and a rotor assembly, and the rotation of the rotor assembly relative to the stator assembly is realized by means of electromagnetic transformation, and the rotor outputs power through a rotating shaft. [0003] Current driving devices such as aircraft, electric vehicles or boats usually use single-mode motors, and there is only one best efficiency point when the working voltage is fixed. However, the driving device has different requirements on the power output of the motor in different working environments. For example, when the driving device starts or has a large load, it needs low speed and high torque, and a motor with a high speed constant is suitable for high-speed operation. Under working conditions, exces...

AI Technical Summary

Problems solved by technology

However, the driving device has different requirements on the power output of the motor in different working environments. For example, when the driving device starts or has a large load, it needs low speed and high torque, and a motor with a high speed constant is suitable for high-speed operation. Excessive armature current will be generated under working conditions, causing severe heat generation

However, a motor with a lower rotational speed constant suitable for low-speed operation is beneficial to the start-up of the traveling device and heavy-duty operation, but it cannot run at high speed, and the traveling device can only travel at a low speed

The single-mode motor cannot achieve the best efficiency state under different working conditions, making the overall driving efficiency of the driving device lower

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