Planning method for short-term and effective load work with capability of increasing energy utilization efficiency of satellites

Abstract

The invention provides a planning method for short-term and effective load work with the capability of increasing energy utilization efficiency of satellites. The planning method comprises following steps: model creation of an energy constraint condition, model creation of the energy constraint condition and an input condition affecting a satellite energy condition and creation of a charge-discharge condition model for a storage battery group. The invention discloses the planning method for short-term and effective load work and an application example. A mathematical model is capable of taking actual running parameters of each orbit ring in satellite running as an input condition for calculation. Compared with a conventional method which only takes a short-term and effective load work mode and work time constraints into consideration under the harshest condition, working modes of loads can be combined at will in one orbit ring. By setting work time and working time of loads at will, the satellites can be more practical.

Description

technical field [0001] The invention relates to a short-term effective load work planning method for improving satellite energy use efficiency, and belongs to the fields of energy constraint analysis of satellite use and satellite load optimization use. Background technique [0002] At present, the satellite power system is generally a solar array-battery pack power system, and the cycle life of the battery pack is the bottleneck that restricts the on-orbit life of the power system. The service life of the battery pack is inversely correlated with its discharge depth. In order to prolong its on-orbit service life, it is necessary to limit the discharge depth; The orbital period is short, and within one orbital period, the shadow time is longer, accounting for about one-third of the entire orbital period. In addition to the requirements for the discharge depth of the battery pack, the satellite power system is also required to meet the energy requirements of the current circl...

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Problems solved by technology

[0004] (1) Satellite energy constraints are given according to the satellite operating state parameters at the end of the satellite's life and under the worst operating conditions, not based on the current satellite operating state of the mission, which limits the full use of satellites and reduces the use of satellites Efficiency; (2) The proposal of satellite energy constraints only gives the working time of a certain working mode in one orbital circle. For the combination mode of load work in one orbital circle, it cannot give a variety of situations, and it cannot be carried out. The free combination of working modes reduces the flexibility and ease of use of satellites

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