Five-degree-of-freedom suspended electric power generation system

Abstract

The invention relates to a five-degree-of-freedom suspended electric power generation system, which comprises an enclosure, a rotating shaft, a three-degree-of-freedom bearing-free alternating pole permanent magnet motor, of which the left end is actively suspended in an axial direction, a three-degree-of-freedom bearing-free alternating pole permanent magnet motor, of which the right end is actively suspended in an axial direction, and two auxiliary bearings, wherein due to the two three-degree-of-freedom bearing-free motors, the five-degree-of-freedom suspension of the system is realized; and a redundancy function is realized in the axial direction. The three-degree-of-freedom bearing-free alternating pole permanent magnet motor, of which the left end is actively suspended in the axial direction, is used as a power generator and outputs electric energy; and the three-degree-of-freedom bearing-free alternating pole permanent magnet motor, of which the right end is actively suspended in the axial direction is used as a motor and outputs a torque. The five-degree-of-freedom suspended electric power generation system is integrated with an electric function, a power generation function and a suspension function, and can be widely applied to a plurality of special power transmission fields, such as aerospace, life sciences, chemical engineering, semiconductor industries and the like.

Description

technical field [0001] The invention relates to a five-degree-of-freedom suspension motor-generation system, which is a high-speed motor system integrating motor, power generation and suspension functions, and belongs to the technical field of electric drive control equipment. Background technique [0002] With the rapid development of modern industry, high-speed motors and ultra-high-speed motors have been more and more widely used, such as high-speed high-precision machine tools, turbomolecular pumps, high-speed centrifuges, compressors, flywheel energy storage, and aerospace fields. In order to achieve high-speed and ultra-high-speed reliable operation of the motor, the problem of supporting the rotor at high speed must be solved. When the rotor rotates at high speed, the traditional mechanical bearings experience increased frictional resistance and increased wear, causing the motor to heat up, which not only reduces the working efficiency of the motor, shortens the servi...

AI Technical Summary

Problems solved by technology

If battery power is used, battery replacement may be troublesome; if external power input is used, the requirements for sealing will increase

In addition, in some special occasions, it may be inconvenient to install mechanical sensors such as optical code discs to measure the speed of the motor, which brings difficulties to the monitoring of the system's operating conditions

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