High-speed magnetic levitation flywheel stabilization control system

A stable control and magnetic levitation technology, applied in the general control system, control/regulation system, automatic control, etc., to achieve the effect of increasing critical speed, easy parameter setting, and preventing forward whirl and backward whirl instability

Inactive Publication Date: 2006-02-22
BEIHANG UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the existing magnetic levitation flywheel control system in the flywheel rotor backward whirl and forward whirl stability control, especially to solve the problem of the stability control of the high frequency whirl of the magnetic levitation flywheel, and to provide a high-efficiency The magnetic levitation flywheel with high speed and large inertia can realize stable vibration control for forward whirl and backward whirl at the same time during the whole process of raising and lowering the speed. Simple and practical magnetic levitation flywheel control system

Method used

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  • High-speed magnetic levitation flywheel stabilization control system
  • High-speed magnetic levitation flywheel stabilization control system
  • High-speed magnetic levitation flywheel stabilization control system

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Embodiment Construction

[0023] Such as figure 1 As shown, the present invention includes a displacement sensor 1, a displacement signal interface circuit 2, a rotational speed detection circuit 4, a magnetic bearing controller 5, a magnetic bearing power amplification drive circuit 6, and a displacement signal interface circuit 2, which are used for adjusting the magnetic levitation flywheel rotor displacement sensor 1 The detected four radial displacements of terminal A in X direction and Y direction, the signals of displacement in X direction and Y direction of terminal B and an axial displacement signal are subjected to zero adjustment and high-frequency noise filtering; the rotational speed detection circuit 4 is used to The flywheel speed pulse signal is isolated and quantified (it can be pulse frequency, digital or voltage, determined according to the input interface type of the magnetic bearing controller used); the magnetic bearing power amplification drive circuit 6 is used to convert the mag...

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Abstract

Disclosed a high speed magnetic levitation flywheel stability control system, comprises a displacement sensor, a displacement signal interface circuit, a rotary speed detect circuit, a magnetic bearing controller, and a magnetic bearing power amplifying drive circuit. Wherein, the magnetic bearing controller comprises a axial magnetic bearing controller and a radial magnetic bearing controller, while the radial one is formed by decentralized PID control module and a cross feedback control module whose outputs are connected by the feedback method in cross and parallel. Said invention utilizes the cross feedback control formed by forward whirling motion filter and backward whirling motion filter based on the decentralized PID control; it reaches the phase lead compensation to the forward and backward whirling motion by using the difference of their frequency and whirling motion directions, their variation rule of rotary speed, and the signal of rotary speed of flywheel. So the breakdown speed of flywheel is improved while the stable operation of magnetic levitation flywheel in whole rising and falling process is confirmed too.

Description

Technical field [0001] The invention relates to a magnetic suspension flywheel control system, which is used for stable suspension control and rotor vibration control of a high-speed magnetic suspension flywheel. Background technique [0002] With the development of magnetic bearing technology, the research of magnetic levitation flywheel technology has been paid more and more attention by various countries. Magnetic levitation flywheel has the advantages of high speed, long life, low vibration, low power consumption, and high energy storage density, and has broad application prospects in aerospace, transportation, electric energy and other fields. Especially in aerospace applications, the maglev flywheel can be used as a momentum wheel for attitude control, and can also be used as an energy storage unit instead of a battery, thereby realizing the integration of attitude control and energy storage. [0003] The control technology of the magnetic levitation flywheel is the k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N15/00G05B13/00G05B11/00F16C32/04
Inventor 房建成樊亚洪魏彤田希晖
Owner BEIHANG UNIV
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