An ultra-high-speed integrated motor with stepless adjustment of internal inductance

Abstract

The invention relates to an ultra-high-speed integrated motor whose internal inductance can be adjusted steplessly, and belongs to the technical field of motors. In the present invention, a set of stator and rotor of a reactor is added outside the normal stator teeth, coils are wound on the stator teeth of the reactor, and fixed on the stator of the motor, the rotor is fixed on the casing and can slide back and forth through push buttons outside the casing, thereby To adjust the coupling area between the stator teeth of the reactor and the rotor teeth, and further change the magnetic permeability of the magnetic circuit, the internal inductance can be adjusted steplessly, so that the inductance value can be adjusted to adapt to different working conditions, thus The working system of the motor is simplified, and the working efficiency of the motor is improved. Compared with the traditional method of limiting the current of the motor stator winding by an external series reactor, the series inductor of the present invention can adjust the inductance value arbitrarily and the adjustment range is wide enough. On the basis of ensuring the safety of the motor, it also has the advantages of being more flexible and more adaptable to the complex and changeable working conditions of the motor.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to an ultra-high-speed integrated motor whose internal inductance can be adjusted steplessly. Background technique [0002] With the development of the power industry, the construction of more and more key projects requires the technical support of ultra-high-speed motors. Therefore, ultra-high-speed motors have become an important research content in the field of electrical engineering in my country. Compared with the traditional motor, the ultra-high-speed motor is small in size, has no deceleration structure and is directly connected to the prime mover, and has a small moment of inertia, so it has the advantages of material saving, high speed, high power, fast response speed, and high transmission efficiency, which can meet the high load. speed requirement. However, the high rotor speed of the ultra-high-speed motor and the small impedance of the stator winding are ea...

AI Technical Summary

Problems solved by technology

However, when the working conditions change, different reactors need to be replaced, which makes the working system of the motor more complicated and limits the working efficiency of the motor

[0009] However, the technical scheme of filtering the stator winding current harmonics through LC filtering only plays a role in suppressing the current harmonics, and cannot fundamentally solve the problem of excessive stator winding current caused by the small stator winding impedance value, and this scheme It makes the motor working system more complex and has many limitations

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