Reaction Flywheels for Satellites

A reaction flywheel and satellite technology, applied in the field of satellite control systems, can solve the problems that the flywheel control accuracy cannot meet the use requirements, the motor drive current cannot achieve stable control, and the motor speed accuracy is limited.

Active Publication Date: 2012-08-15
SHANGHAI XINYUE METER FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Motor speed accuracy is limited, only speed feedback in the control loop, the motor drive current can not achieve smooth control, the reaction
Flywheel control accuracy can not meet the requirements of use

Method used

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  • Reaction Flywheels for Satellites
  • Reaction Flywheels for Satellites

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Embodiment Construction

[0015] Below in conjunction with the accompanying drawings illustrate the course of action of the reaction flywheel of the present invention.

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Abstract

The invention relates to a reaction flywheel for a satellite, which includes a bearing assembly, a motor assembly, a wheel body, a bracket and a circuit board assembly, the circuit board assembly is installed on one side of the bracket, and the motor assembly drives the wheel body to rotate. The photoelectric encoder assembly; the moving grating of the photoelectric encoder assembly is fixedly connected to the bearing assembly, and the static grating is fixedly connected to the bracket; the circuit adopts double closed-loop control of speed and current. The reaction flywheel of the invention has the characteristics of high precision and high stability, and is suitable for satellite attitude control systems that require high attitude control accuracy and attitude control stability.

Description

Technical field of reaction flywheel for satellite [0001] The present invention relates to a reaction flywheel for a satellite, which is suitable for a satellite control system. Background technique At present, most of the reaction flywheels used on satellites include bearing assembly, motor assembly, Hall device, wheel body, Drive lines, vacuum cover and its base. The Hall device is installed on the motor to measure the motor speed and commutation control; through Speed ​​feedback performs closed-loop control of the speed. This reaction flywheel is widely used in various existing satellites. However, when When the satellite needs to perform high-precision and high-stability attitude control, it shows its shortcomings: using Hall devices to measure Motor speed accuracy is limited, only speed feedback in the control loop, the motor drive current can not achieve smooth control, the reaction Flywheel control accuracy can not meet the requirements of use. Contents o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/24B64G4/00
Inventor 袁光耀吴敬玉彭仁军吴永初马雪阳吴德安王勇赵万良张云霞
Owner SHANGHAI XINYUE METER FACTORY
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