Structure and method for eliminating residual magnetic moment of solar cell array for space

Abstract

The invention discloses a structure and a method for eliminating residual magnetic moment of a solar cell array for space, and belongs to the technical field of satellite power supplies. The structure comprises a solar cell array distribution circuit and a solar cell array leading-out circuit, wherein the solar cell array distribution circuit is composed of a solar cell module A and a solar cell module B which are pasted on a solar cell panel, the solar cell module A and the solar cell module B form M-string N-parallel solar cells through CIC solar cells, interconnection sheets, positive electrode bus bars and negative electrode bus bars, the solar cell array leading-out circuit is composed of a solar cell module A leading-out circuit and a solar cell module B leading-out circuit, and the solar cell module A leading-out circuit and the solar cell module B leading-out circuit are each composed of N positive electrode leading-out wires, N negative electrode leading-out wires and tin soldering points. According to the invention, the residual magnetic moment is eliminated through the front and back loops while the inter-string voltage difference in the unit circuit can be eliminated, so that the possibility of electrostatic discharge failure in the unit circuit is fundamentally eradicated.

Description

technical field [0001] The invention belongs to the technical field of satellite power supplies, and in particular relates to a structure and method for eliminating the residual magnetic moment of a space solar cell array. Background technique [0002] In order to ensure the accurate transmission of artificial satellite information, the normal operation of the load, and the stable control of the attitude, the development of satellites puts forward strict requirements on the residual magnetism, especially some magnetically sensitive satellites with special purposes. As an important part of the satellite, the solar cell array is often several times larger than the satellite area after deployment. The residual magnetism of the solar cell array in the working state has a certain impact on whether the satellite can work normally. At present, most solar cell arrays used in space use the method of mirror symmetry to eliminate the residual magnetic moment of the solar cell array. Th...

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Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the present invention proposes a structure and method for eliminating the residual magnetic moment of a solar cell array for space, and eliminates the residual magnetic moment through the front and back circuits, so as to solve the problem that electrostatic discharge failure does not occur on the track

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