A closed-loop test method for power supply balance capability of an agile satellite power supply system

Abstract

The invention relates to a closed-loop testing method for the power supply balancing capability of an agile satellite power supply system, and the method comprises the steps: reading satellite posture remote measurement parameters in a real-time database of a ground testing system; substituting the satellite posture remote measurement parameters into a satellite posture model, and calculating a current solar incident angle alpha; enabling square matrix software to calculate a supply power output parameter I through employing a satellite power supply model; configuring the output of each square matrix of a solar square matrix simulator according to the supply power output parameter I; reading the current electric quantity of a storage battery in the real-time database of the ground testing system after a satellite moves along an orbit by one cycle in a shadow region, and judging that the satellite power supply balancing capability meets the requirements. The method can truly reflect the power supply capability of the satellite at the current posture, provides real and reliable testing data for the power supply balancing analysis of the whole agile satellite, accurately deduces whether the power supply system can maintain the receiving and supplying balance of the power and electricity quantity when the satellite moves on the orbit.

Description

technical field [0001] The invention relates to a closed-loop test method for power supply balance capability of an agile satellite power supply system, which belongs to the field of satellite test. Background technique [0002] With the continuous deepening of users' demand for aerospace image modes and data volumes, improving attitude maneuverability and enriching imaging task modes have become new requirements for Earth optical remote sensing satellites. Due to its large-scale rapid attitude maneuvering capability far higher than that of traditional optical remote sensing satellites, agile satellites can achieve rapid and multi-mode imaging of observation targets. Traditional optical remote sensing small satellites have simple single-track missions, and the power supply capability of satellites only needs to be analyzed by calculating the maximum power consumption and time of the entire satellite during imaging to determine whether it can meet the power supply balance req...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of numerous mission modes and frequent attitude changes, the imaging mode of agile satellites is complex and changeable, and the power consumption of the whole star changes rapidly, and the change of the angle of the solar cell array to the sun causes rapid changes in the output power of the solar cell array. , the traditional non-agile small satellite power supply capacity analysis method is difficult to apply to fast attitude maneuvering imaging satellites, and it is necessary to establish an agile satellite power supply system analysis and testing method

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