空间流体回路单点恒温控制方案

张涵泽; 郑桐; 张汉勋; 陈博

doi:10.11728/cjss2019.02.233

空间流体回路单点恒温控制方案

doi: 10.11728/cjss2019.02.233

张涵泽^1,3,
郑桐^1,3,
张汉勋^1,3,
陈博^2,3

1. 中国科学院空间应用工程与技术中心北京 100094;
2. 中国科学院国家空间科学中心微波遥感技术重点实验室北京 100190;
3. 中国科学院大学北京 100049

详细信息

作者简介:
张涵泽,E-mail:zhanghanze15@csu.ac.cn

中图分类号: Y57
计量
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- 被引次数: 0
出版历程
- 收稿日期: 2018-04-02
- 修回日期: 2018-06-28
- 刊出日期: 2019-03-15

Precision Thermal Control Scheme of Fluctuating Temperature for Space Fluid Loop

1. Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing 100094;
2. National Space Science Center, Chinese Academy of Sciences, Beijing 100190;
3. University of Chinese Academy of Sciences, Beijing 100049

摘要

摘要: 空间流体回路的载荷支路来流温度在一定范围内随机变化，需采取有效热控措施消除来流温度变化对回路单点位置处恒温工作载荷的热影响.传统电加热方式需要额外能耗并且会产生废热，本文提出一个PID控制下的冷热回路交混控温方案，在充分利用工质吸收的废热、提高机柜内能源利用率的同时，实现对恒温设备冷板入口温度的精确控制，以满足冷板上载荷的恒温工作需求；设计流体回路组成与控制方案，并通过仿真分析对方案进行了验证.结果表明，该流体回路系统可以满足对来流温度的高精度控制要求，且相比于PID控制算法，模糊PID的控制效果更好，具有响应快、超调量小、控制精度高等特点，应优先选择模糊PID作为控制算法.
- 高精度温度控制 /
- 流体回路 /
- 控制策略
Abstract: Fluid temperature at the inlet branches of the space fluid loop fluctuates randomly within a specific range, therefore measures should be taken to decrease their thermal effects on cold-plate cooled high-stability requirement payloads. Because the traditional patch heaters require additional power and produce waste heat, a scheme of fluid mixing with PID controlled valves is proposed, which can utilize thermal energies in different loop braches to control the temperature at the coldplate inlet by regulating valve openings. A numerical study is performed and its results show the system can satisfy the high precision temperature control requirement. The fuzzy PID control effect is better than that of the PID control algorithm, such as faster response, less overshoot, and higher control precision. Therefore, the fuzzy PID is preferred as the control algorithm of this scheme.
- Precision thermal control /
- Fluid loop /
- Control strategy

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参考文献(21)

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