Power supply capability prediction method for sun-synchronous orbit satellite power supply

Abstract

The invention discloses a power supply capability prediction method for a sun-synchronous orbit satellite power supply system. The method comprises the following steps that 1, n historical telemeasuring parameter data related to the output power of a power supply array and a charging array on the satellite are acquired; 2, the telemeasuring parameter data are ordered according to the time identifier i; 3, the historical output power E of n effective data of the satellite power supply system is calculated; 4, a satellite motion period, including the power supply phase in which the satelliteis in a light area and the no-power-supply phase in which the satellite is in a shadow area, is defined, and the length T of each satellite motion period and the average period T<-> are calculated; and 5, the average period T<-> is taken as the next prediction period and output power prediction is performed on the time points within the next time period of which the prediction length is T<->. Thesatellite motion period is extracted through the historical telemeasuring data, and the output power of the satellite power supply system in the following time periods is predicted by using the powersupply periodic characteristics of the satellite power supply system.

Description

Technical field [0001] The invention belongs to the computer field and relates to a method for predicting the power supply capability of a sun-synchronous orbit satellite power supply. Background technique [0002] Satellite power supply is a sub-system that generates, stores, transforms, regulates and distributes electrical energy on the satellite. Its basic function is to convert light, chemical or nuclear energy into electrical energy through a physical or chemical change, and store, adjust and distribute it as needed. Transform and then supply power to the satellite systems. At present, aerospace technology has entered a new stage of large-scale development and utilization of near-Earth space. Various application satellites that directly serve the national economy and national defense construction are developing in the direction of high performance, multi-purpose, and long life. The effective load of the satellite is increasing day by day, the mission is complicated and chan...

AI Technical Summary

Problems solved by technology

Due to the particularity of the space environment where satellites are located and the complexity of telemetry data, it is difficult to directly apply the existing methods for predicting the power supply capacity of ground photovoltaic power plants to the prediction of satellite power supply capabilities, and it is necessary to transform and improve existing technologies. It can be seen that the current research on the prediction method of satellite power supply capacity is still in a blank stage.

[0005] To sum up, the existing related research mainly focuses on the prediction of terrestrial photovoltaic power generation, and there is still a lack of research on the prediction of satellite power supply capacity based on telemetry parameter information in the space environment.

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