Integrated executive mechanism of satellite attitude control and thermal control and control method thereof

Abstract

The invention relates to an integrated executive mechanism of satellite attitude control and thermal control, which comprises a liquid accumulator, a circulating pump assembly and a first flow distribution valve which are connected in series to form a working medium circulating loop, heat exchange devices which are connected in parallel, a heat exchange loop formed by a first bypass branch, and a radiator / torquer integrated device, wherein a liquid working medium flows in the circulating loop; the circulating pump assembly is used for driving the liquid working medium to flow in the circulating loop at a certain flow velocity and flux; the radiator / torquer integrated device comprises at least two different pipelines which are connected in parallel and a device used for controlling the distribution of the liquid working medium in the different pipelines; and the circulating pump assembly is sequentially connected with the radiator / torquer integrated device. The integrated executive mechanism can realize the heat-dissipating function of a high heat-flux density device of a microsatellite and provides single-axis or multi-axis control moment for attitude control, integrates functions of attitude control and thermal control executive mechanisms, improves the function density of the microsatellite, and has simple structure and low cost.

Description

technical field [0001] The present invention relates to satellite control, in particular to attitude control and thermal control of tiny satellites. More specifically, the present invention provides an integrated executive mechanism capable of simultaneously realizing the above two controls and its control method. Background technique [0002] Microsatellites have technical characteristics such as small size, light weight, low cost, and high functional density. Their applications in many fields such as communication, earth observation, scientific research, technology demonstration, and planetary exploration are becoming more and more popular. In the design of micro-satellites, the high-density integration of components and the multi-functionalization of components are two effective ways to achieve the design goal of "good, fast and economical" for micro-satellites. [0003] Attitude control and thermal control subsystems are the key core components of micro-satellites. The f...

AI Technical Summary

Problems solved by technology

[0009] 1. Improve the integration of satellite functions, and solve the problems of large device size and complex software programs caused by the separation of the actuators and control algorithms of the control subsystems of existing satellites, especially on small satellites;

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