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bsrmwr torque ripple suppression method based on turn-on and turn-off angle control

A torque ripple, on-off technology, applied in the control field of bearingless switched reluctance motor to suppress torque ripple, can solve problems such as motor noise and limited application, achieve convenient control, enhance reliability and stability, improve Effects on torque and suspension performance

Active Publication Date: 2022-02-08
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Large torque ripple limits its application in high-performance occasions, and torque ripple is also an important cause of motor noise and vibration

Method used

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  • bsrmwr torque ripple suppression method based on turn-on and turn-off angle control
  • bsrmwr torque ripple suppression method based on turn-on and turn-off angle control
  • bsrmwr torque ripple suppression method based on turn-on and turn-off angle control

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Embodiment Construction

[0037] The present invention is further clarified in conjunction with the accompanying drawings and specific embodiments, and it is to be understood that these examples are intended to illustrate the invention, and those skilled in the

[0038] Motor structure figure 1 As shown, 12 tumored stator teeth, 8 male rotor teeth, windings, rotating shafts; the mechanical angle of the rotor pole arc is 30 °, the mechanical angle of the stator pole arc is 15 °, and there is a set of 12 sets. Winding, a total of 12 windings, the voltage, current can be controlled separately, in contrast, inverted in the winding direction of the two windings, the flow in the current direction, the magnetic field formed by the four windings is distributed, every 90 The four-phase windings of the needle, and the 12 windings finally form a A, B, C three-phase windings that differ from 30 ° on the space...

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Abstract

The invention discloses a BSRMWR torque ripple suppression method based on turn-on and turn-off angle control. A suitable turn-off angle is selected in the swap-out phase, and an appropriate turn-on angle is selected in the swap-in phase, so as to optimize the current rise and fall between the commutation phases. speed purpose, thereby suppressing or eliminating commutation torque ripple. The method is simple and practical, and can improve the dynamic performance of the system. The coupling problem between the torque and the levitation force of the traditional bearingless switched reluctance motor is solved; the method selects the appropriate turn-on angle and turn-off angle to improve the torque and levitation force performance of the motor. The method of the invention is simple and practical, convenient to control, and can enhance the reliability and stability of the motor system.

Description

Technical field [0001] The present invention relates to a tooth structure of a single winding width 12 / 8 bearingless rotor switched reluctance motor (BearinglessSwitched Reluctance Motor with Wider Rotor Teeth, BSRMWR) suppressing torque ripple control method, belonging to the technical field of application control motor. Background technique [0002] BSRMWR has a simple structure, rugged, low cost, reliable, non-lubricated, long life and other characteristics, has great application in the aviation high-speed, ultra-high speed starter-generator, flywheel energy storage and other fields. [0003] Compared with ordinary BSRMWR Bearingless switched reluctance motor, which rotor teeth mechanical angle is increased to 30 °, through bipolar conduction can be suspended decoupling torque force, due to its bi-convex structure, when the commutation the larger problem torque ripple. Torque ripple larger limiting its application, the torque ripple in high-performance applications is also an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/05H02P21/22H02N15/00H02P25/098H02P25/08
Inventor 杨艳邹王钰刘泽远刘程子
Owner NANJING UNIV OF POSTS & TELECOMM
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