载人航天器微量污染净化装置温度控制研究

催化氧化器是载人航天器中的微量污染净化装置的一个重要组成部分。提出了一种新型自整定模糊控制器控制催化氧化器工作温度,它采用在线Bang唱bang方法获得系统特性,利用所提出的整定公式计算出模糊控制器的输入输出因子,将这些比例因子与标准查寻表结合,实现了自整定模糊控制器的设计。

Study on Temperature Control of Trace ContaminantControl Subassembly in Manned Spacecraft

The catalytic oxidizer assembly(COA)is an important part of the trace contaminant control subassembly in manned spacecraft.Temperature control in COA via a new self-tuning fuzzy logical controller(FLC)is analyzed in this paper.The new tuning method applies the bang-bang on-line tuned method to the design of the self-tuning FLC for obtaining the system parameters.On the basis of these parameters,the input and output scaling factors are calculated with simple tunable formulas.Then the proposed self-tuning FLC is realized by combining the scaling factors and the normal look-up table.It can realize self-tuning parameters,and simplify the design.Simulation results show that the proposed self-tuning FLC is fit for controlling the temperature of COA and isn't sensitive to parameter changes.