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Active magnetic suspension control system and control method for three-floated gyro

A control system and magnetic levitation technology, applied in the field of traditional inertial instruments, can solve the problems of complex structure and affect the accuracy of gyroscopes, and achieve the effect of improving quality

Active Publication Date: 2014-07-09
BEIJING INST OF AEROSPACE CONTROL DEVICES
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AI Technical Summary

Problems solved by technology

While the maglev control system completes the above main functions, it cannot bring a large disturbance torque to the gyroscope, which will affect the accuracy of the gyroscope.
The previous three-float gyroscope active maglev control system has a complex structure, which affects the accuracy of the gyroscope

Method used

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  • Active magnetic suspension control system and control method for three-floated gyro
  • Active magnetic suspension control system and control method for three-floated gyro
  • Active magnetic suspension control system and control method for three-floated gyro

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Embodiment Construction

[0025] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0026] like figure 1 As shown, the three-float gyroscope active maglev control system of the present invention includes a maglev element (1), a first float position detection resistor group (2-1), a second float position detection resistor group (2-2), an analog signal Conversion circuit (3), multiplexer (4), controller (5), first excitation / addition force control switch group (6-1) and second excitation / addition force control switch group (6-2) . The magnetic suspension elements include axial magnetic suspension elements on the left side of the float, axial magnetic suspension elements on the right side of the float, radial magnetic suspension elements on the left side of the float and radial magnetic suspension elements on the right side of the float; axial magnetic suspension elements on the left side of the float The magnetic levitatio...

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Abstract

The invention discloses an active magnetic suspension control system and control method for a three-floated gyro. The active magnetic suspension control system comprises a magnetic suspension element, a first floater position detection resistor group, a second floater position detection resistor group, an analog signal conversion circuit, a multipath gating device, a controller, a first excitation / stressing control switch block and a second excitation / stressing control switch block, wherein the magnetic suspension element, the first floater position detection resistor group and the second floater position detection resistor group form five paths of Wheatstone test bridges. According to the control method disclosed in the invention, the control period of the controller is divided into a position signal sampling period Tc, a stressing period Tf and a restore and waiting period Td. With the control system and method, five degrees of freedom of the floaters of the three-floated gyro can be controlled, and precision and centering of the three-floated gyro can be realized. The control system controls displacement of the magnetic suspension element through single-side magnetic pole stressing and employs a state decoupling control method, so precision of the three-floated gyro can be improved.

Description

technical field [0001] The invention belongs to the technical field of traditional inertial instruments, and in particular relates to a three-float gyroscope active magnetic levitation control system. Background technique [0002] The support device is an important part of the inertial instrument, and also a key component that determines the accuracy of the instrument. Practice has shown that, as long as a long-term test is carried out for a liquid-floating gyro without magnetic suspension, uncertain error factors will always be reflected, and the drift speed must be very unstable. The precision performance of the liquid floating gyroscope with magnetic suspension is 1 to 2 orders of magnitude higher than that without magnetic suspension. The liquid-floating gyroscope with magnetic levitation can adopt active magnetic levitation and passive magnetic levitation. After the active maglev changes the differential afterburner of the passive maglev to unilateral afterburner, not...

Claims

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Application Information

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IPC IPC(8): G01C19/24
CPCG01C19/24
Inventor 邓忠武王雪王永彤陈瑞霞王文佳张智
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES
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