Method for determining optimal offset angle of non-sun-oriented solar cell array
A solar cell array and a technology for determining the method, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of incomplete calculation, bias angle step size, etc., and achieve simple calculation methods, accurate acquisition, The effect of shortening the step size
Active Publication Date: 2019-12-10
AEROSPACE DONGFANGHONG SATELLITE
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[0005] The technical problem of the present invention is: to overcome the deficiencies of the prior art, a method for determining the best bias angle of non-sun-oriented solar cell arrays is proposed, which optimizes The existing solar cell array output energy calculation method efficiently realizes the full traversal of different offset installation angles and different track incident angles of the solar cell array, and solves the problem that the traditional manual calculation of the offset angle is too large and the calculation is not comprehensive ; Proposed a universal calculation method for the earth's shadow time and the calculation method for the angle between the normal line of the solar cell array and the sunlight; proposed the evaluation principle of the optimal offset angle of the solar cell array, and realized the non-sun-oriented solar cell array Selection of Optimum Offset Angle
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[0045] The present invention is a method for determining the optimal bias angle of a non-solar directional solar array. Through the solar array output energy calculation model, all solar array bias angles and orbital incidence angles are traversed, and the optimal solar array bias angle is selected . Including steps:
[0046] 1) According to the value range of the satellite's orbital incidence angle, sampling at a certain sampling step to obtain n orbital incidence angles β i , Where n is a positive integer, i is a positive integer and i∈[1,n]; the orbit of the satellite is a near circular orbit;
[0047] 2) According to the satellite orbital height H, the orbital incidence angle and the input solar array installation offset angle, determine the incidence angle β of each orbital respectively i Corresponding solar cell array output energy, obtain n orbital incident angle β i Respectively correspond to the output energy of the solar cell array, and use the obtained output energy of t...
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The invention discloses a method for determining the optimal offset angle of a non-sun-oriented solar cell array, and the method mainly comprises the steps: obtaining a calculation input condition, such as an orbit height H and an orbit incident angle range; calculating a current offset angle and a ground shadow field angle under a current orbit incident angle; calculating the output energy of thesolar cell array under the current bias angle and the current orbit incident angle by taking the earth shadow field angle as input; and traversing all bias angles and all orbit incident angles, and evaluating the output energy of the solar cell array to obtain an optimal bias angle. The method is used for selecting the optimal bias installation angle of the satellite solar cell array to obtain the comprehensively optimal solar cell array output energy, traversing all bias angles and the solar cell array output energy under all orbit incident angles, and evaluating the calculation result of the solar cell array output energy to realize the selection of the optimal bias angle.
Description
Technical field [0001] The invention relates to a method for determining the optimal bias angle of a non-solar directional solar cell array, and belongs to the technical field of spacecraft power supply and distribution design. It is especially suitable for satellite solar cell arrays that are not equipped with a directional driving mechanism to the sun. It is used to select the best installation offset angle of the solar cell array relative to the satellite body, reduce the solar incidence angle of the solar cell array, and improve the solar cell array On-rail output power. Background technique [0002] The solar array-battery pack power system is currently the most widely used spacecraft power system at home and abroad. For the solar array-battery pack power system, an important task in the overall design process is to design the energy balance of the entire star. During the light period, the solar array supplies power to the satellite load, while the excess energy charges th...
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IPC IPC(8): G06F17/50
Inventor 苏蛟刘元默王乐乐张勇马文伟柴逸
Owner AEROSPACE DONGFANGHONG SATELLITE
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