Current harmonic suppression method for magnetic suspension rotor system based on self-adaptive repetitive controller

A repetitive controller and magnetic levitation rotor technology, applied in the direction of adaptive control, general control system, control/adjustment system, etc., can solve the problem that the repetitive controller cannot be directly applied, affects the convergence speed of the repetitive controller, and the high-frequency harmonics cannot be performed Effectively suppress problems such as

Active Publication Date: 2015-04-08
BEIHANG UNIV
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Problems solved by technology

There are many examples of successful application of repetitive controllers in power electronics, such as motor systems, and good engineering results have been achieved; however, magnetic bearing systems are different from motor systems, and existing repetitive controllers cannot be directly applied. The main reasons are: (1) In the existing repetitive controllers, in order to sati

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  • Current harmonic suppression method for magnetic suspension rotor system based on self-adaptive repetitive controller
  • Current harmonic suppression method for magnetic suspension rotor system based on self-adaptive repetitive controller
  • Current harmonic suppression method for magnetic suspension rotor system based on self-adaptive repetitive controller

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Embodiment Construction

[0037] Such as figure 1 As shown, the implementation steps of a current harmonic suppression method for a magnetic suspension rotor system based on an adaptive repetitive controller of the present invention are to first establish a dynamic model of the active and passive magnetic suspension rotor with unbalance and sensor harmonics, and then design a Adaptive repetitive controller, and finally based on the characteristics of the active and passive magnetic suspension rotor system, the harmonic current suppression method is given.

[0038] (1) Establish a dynamic model of the active and passive magnetic suspension rotor system with unbalance and sensor harmonics

[0039] Two degrees of freedom active and passive magnetic suspension rotor system structure consists of rotor, stator, active magnetic bearing and passive magnetic bearing, such as figure 2 Shown. The active and passive magnetic levitation rotor system adopts suction-type passive magnetic bearings to control the two degr...

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Abstract

The invention relates to a harmonic current suppression method for a magnetic suspension rotor system based on a self-adaptive repetitive controller. The harmonic current suppression method comprises the following steps: firstly establishing dynamical models for the active-passive magnetic suspension rotor system containing unbalance and sensor harmonic waves, secondly designing the self-adaptive repetitive controller, and giving out the harmonic current suppression method according to the characteristics of the active-passive magnetic suspension rotor system. The method is suitable for harmonic current suppression of an active magnetic bearing coil of the active-passive magnetic suspension rotor under the condition that unbalance mass and the sensor harmonic waves exist, and is high in precision and high in rate of convergence.

Description

Technical field [0001] The invention relates to a method for suppressing current harmonics of a magnetic suspension rotor system based on an adaptive repetitive controller, which is used for the current of the magnetic suspension rotor of a micro-vibration actuator such as a magnetic suspension control moment gyroscope or a magnetic suspension flywheel used for attitude control of an "super static" satellite platform Harmonic suppression. Background technique [0002] The magnetic levitation control moment gyroscope uses magnetic bearings to replace conventional mechanical bearing supports, which can fundamentally solve the friction and vibration problems existing in traditional mechanical bearings. It not only has the outstanding advantages of high precision, low vibration, long life, high speed, etc., but also in function There are potential technical advantages in terms of density, volume, weight, and power consumption. It is one of the ideal executive agencies for long-term o...

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Application Information

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IPC IPC(8): G05B13/04G05D19/02
Inventor 崔培玲崔健赵光再张会娟李海涛
Owner BEIHANG UNIV
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