Geosynchronous orbit satellite solar cell array closed-loop counterglow tracking method and system

A solar cell array and geostationary orbit technology, applied in the field of space vehicles, can solve unexplained and other problems

Active Publication Date: 2019-11-15
SHANGHAI SATELLITE ENG INST
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Problems solved by technology

However, this method does not describe the method for the satellite in geostationary orbit to realize the precise alig

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  • Geosynchronous orbit satellite solar cell array closed-loop counterglow tracking method and system
  • Geosynchronous orbit satellite solar cell array closed-loop counterglow tracking method and system
  • Geosynchronous orbit satellite solar cell array closed-loop counterglow tracking method and system

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Embodiment Construction

[0053] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0054] Because the geostationary earth observation satellite rotates 360° around the normal line of the orbital plane every day during its orbit, and the space position of the sun rotates less than 1° in the orbital plane, which is equivalent to the sun rotating around the satellite about one circle per day, to ensure the energy of the satellite The normal supply of the solar array or the solar detection instrument on the solar array pointing towards the sun, the satellite platform needs t...

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Abstract

The invention provides a geosynchronous orbit satellite solar cell array closed-loop counterglow tracking method. The geosynchronous orbit satellite solar cell array closed-loop counterglow tracking method comprises the following steps: S1, a solar tracking angle is calculated, specifically, the solar tracking angle is calculated according to a current signal output by an analog solar sensor; S2,the solar tracking angle is subjected to filtering processing; S3, solar array coarse counterglow is conducted; S4, solar array closed-loop fine counterglow is conducted; and S5, shadow period judgment and control are conducted, specifically, whether a geosynchronous orbit satellite is in the shadow period or not is judged, and if the geosynchronous orbit satellite is in the shadow period, a solararray is transferred into a shadow zone control mode. According to the geosynchronous orbit satellite solar cell array closed-loop counterglow tracking control method, an autonomous feedback closed-loop control system on the satellite is formed by taking the analog solar sensor mounted on the solar array as a sensor, taking a solar array driving mechanism as an executing mechanism and taking a control computer as a controller, the solar array accurately points to the sun in real time, and the geosynchronous orbit satellite solar cell array closed-loop counterglow tracking method can be applied to the research and development processes of geosynchronous orbit satellite platforms in China.

Description

Technical field [0001] The invention relates to the technical field of space vehicles, in particular to a closed-loop sun tracking method and a tracking system for a solar cell array of a geostationary orbit satellite. Background technique [0002] Traditional geostationary orbit satellites use open-loop tracking or incremental adjustment + hold methods to achieve solar array tracking control over the sun. In the open-loop tracking mode, the control computer drives the solar array at a fixed speed. However, due to the limited speed subdivision capability of the solar array drive mechanism, there is a certain deviation between the solar array driving speed and the sun's rotation around the satellite. After a long time accumulation, the ground must be interrupted. The process is operated remotely to adjust the tracking angle of the solar array. In the incremental adjustment + hold mode, the control computer takes the measured or calculated solar tracking angle as input. When the s...

Claims

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Application Information

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IPC IPC(8): B64G1/10B64G1/44B64G1/22
CPCB64G1/10B64G1/22B64G1/443
Inventor 王皓顾强沈毅力曾擎边志强许海玉信思博
Owner SHANGHAI SATELLITE ENG INST
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