Space active solar wing unfolding mechanism driving control circuit and control method thereof

Abstract

The invention relates to a space active solar wing unfolding mechanism driving control circuit and a control method thereof. The control circuit comprises a master control chip DSP, wherein the mastercontrol chip DSP is connected with dual paths of H-bridge pulse width modulation amplifier power driving chips, dual redundancy CAN bus interface circuits and dual channel position detection circuits, the dual redundancy CAN bus interface circuits carry out information interaction with an on-satellite integrated electronic system, each channel position detection circuit of the dual channel position detection circuits is connected with a position sensor, the position sensors are connected with output shafts, the output shafts are connected with speed reducers, the speed reducers are connectedwith stepping motors, and a PWM signal with a corresponding duty ratio is output according to the calculated control quantity. After the stepping motors decelerate through the speed reducers, the output shafts are controlled by the stepping motors, and the PWM output is stopped when solar wing substrates are unfolded into place. The control circuit and the control method have the advantages that the detection precision is high, the mechanism can be repeatedly unfolded, the control precision is high, the operation is stable, and the reliability is high.

Description

technical field [0001] The invention relates to a space active solar wing deployment mechanism drive control circuit and method thereof. Background technique [0002] With the vigorous development of manned spaceflight, space station, deep space exploration and other aerospace projects in our country, spacecraft technology has developed rapidly, its structure has become increasingly complex, and its functions have continued to increase. The solar wing deployment mechanism has become an important part of the spacecraft. Whether it can be deployed smoothly after entering orbit is one of the important indicators to measure the success or failure of a spacecraft launch mission, so ensuring the reliable operation of the solar wing is the primary requirement of the deployment agency. [0003] The driving part of the solar wing deployment mechanism provides active torque for the movement of the mechanism, which is the core part of the mechanism. The reliability of the solar wing d...

AI Technical Summary

Problems solved by technology

This driving method has the disadvantages of unstable deployment, slow deployment process, and high air-tightness requirements;

[0009] (4) The entire structure of the solar wing deployment mechanism in the self-expanding drive mode is made of special components or materials such as memory alloys and self-adaptive smart components, which can be automatically released and deployed in a specific environment according to the design requirements. This driving method is only suitable for one-time deployment. , technology is not yet mature and other shortcomings

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