航天器工程2023，Vol.32Issue(6)：10-17,8.DOI:10.3969/j.issn.1673-8748.2023.06.002
外热流扰动下航天器精密控温系统的设计及参数优化
Design and Parameter Optimization of High-precision Temperature Control System for Spacecraft Disturbed by External Heat Flux
耿利寅 1张传强 1童叶龙 1韩东阳 1孟恒辉 1彭方汉1
作者信息
- 1. 北京空间飞行器总体设计部 航天器热控全国重点实验室,北京 100094
- 折叠
摘要
Abstract
For a precision temperature control system of spacecraft,the periodic fluctuation of ex-ternal heat flux is the main disturbance source that affects the output temperature stability of the controlled object.In this paper,a unified mathematical model integrating heat flux,thermal design state,and control algorithm of the system is established based on a typical spacecraft temperature control system.After simplifying the linearization of the model,the frequency response method is used to analyze the system and obtain the theoretical solution of steady state.Starting from the actual thermal control design of spacecraft,this paper analyzes the influence of various thermal and control parameters on the output temperature stability of the system and proposes the opti-mization principles and directions of thermal design and control parameters with the goal of re-ducing temperature fluctuations caused by heat flux disturbances.This paper also takes the high stability temperature control design of a certain type of synthetic aperture radiometer antenna re-ceiver as an example,illustrating the process of adjusting the control parameters according to the above optimization principles and ideas,comparing the output effects under different parameters through simulation calculations,and finally obtaining the ideal temperature control effect.This example verifies the correctness and effectiveness of the theoretical solution and optimization de-sign guidance in this paper.关键词
航天器热控/精密控温/外热流扰动/温度稳定性/比例积分控温/参数优化Key words
spacecraft thermal control/high-precision temperature control/external heat flux dis-turbance/temperature stability/PI temperature control/parameter optimization分类
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耿利寅,张传强,童叶龙,韩东阳,孟恒辉,彭方汉..外热流扰动下航天器精密控温系统的设计及参数优化[J].航天器工程,2023,32(6):10-17,8.
