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Lorentz force magnetic levitation satellite load cabin rapid vibration suppression method

A technology of Lorentz force magnetic levitation and Lorentz force magnetism, which is applied in the direction of motor vehicles, aerospace equipment, space navigation equipment, etc., to achieve the effects of reducing stabilization time, fast vibration suppression, and low delay

Pending Publication Date: 2022-07-29
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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Problems solved by technology

[0003] The technical problem of the present invention is: Aiming at the problem of how to suppress the vibration disturbance existing in the Lorentz force maglev satellite load cabin after large-angle maneuvering, a method for fast vibration suppression of the Lorentz force maglev satellite load cabin is proposed

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  • Lorentz force magnetic levitation satellite load cabin rapid vibration suppression method
  • Lorentz force magnetic levitation satellite load cabin rapid vibration suppression method
  • Lorentz force magnetic levitation satellite load cabin rapid vibration suppression method

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Embodiment Construction

[0032] specific implementation

[0033] Specific embodiments of the present invention are as figure 1 The specific implementation steps are as follows:

[0034] (1) Establish the dynamic model of the satellite load compartment

[0035] like figure 2It is a schematic diagram of the structure of the magnetic levitation universal deflection isolation pod, which is composed of a satellite platform cabin and a satellite load cabin. Among them, components such as angular displacement sensors, radial magnetic bearings, Lorentz force magnetic bearings and actuators are installed on the satellite platform cabin; the satellite load cabin is mainly used to install payloads such as cameras. The radial magnetic bearing control is used to control the two degrees of freedom of radial translation of the satellite load bay, the Lorentz force magnetic bearing is used to control the two degrees of freedom of radial deflection and axial translation of the satellite load bay, and the axial ro...

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Abstract

The invention relates to a rapid vibration suppression method for a lorentz force magnetic levitation satellite load cabin. A satellite load cabin dynamic model is established based on a satellite load cabin five-degree-of-freedom control scheme, and the final deflection angular velocity of a load cabin is obtained by performing information fusion on deflection control current and the deflection angular velocity of the load cabin obtained by two schemes of an inertial measurement unit and an angular displacement sensor. And Fourier transform is carried out to obtain the vibration frequency of the load cabin. And the frequency is updated to an adaptive frequency tracking wave trap in real time, so that extraction and feed-forward compensation of vibration components are realized, and the purpose of vibration suppression of a satellite load cabin is achieved. The vibration suppression process is completely realized through an algorithm, and the calculation amount is relatively low, so that the method has rapidness. The load cabin vibrates after rapid maneuvering, and by means of the method, the stabilization time of the load cabin of the Lorentz force magnetic levitation satellite after rapid maneuvering is effectively shortened. The method belongs to the field of spacecraft attitude control, and can be applied to high-precision stable control of spacecraft attitude vibration.

Description

technical field [0001] The invention relates to a method for fast vibration suppression of a Lorentz force maglev satellite load compartment, which is suitable for the vibration suppression of a satellite load compartment whose deflection is controlled by a Lorentz force magnetic bearing with two degrees of freedom. technical background [0002] The current remote sensing satellite design schemes for earth observation all use the integrated design of the satellite platform and the satellite load. The main disadvantage of this scheme is that the external disturbance of the satellite platform and the disturbance generated during the work of its own actuator will be transmitted to the satellite load. , causing the load to be affected by disturbance, which seriously affects the imaging quality. In addition, in order to expand the spatial resolution of Earth observation satellite imaging, the satellite needs to perform attitude maneuvers so that the observation camera can track t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/22
CPCB64G1/22B64G1/228
Inventor 任元于春淼蔡远文王卫杰张激扬廖鹤尹增愿
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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