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VACUUM ›› 2024, Vol. 61 ›› Issue (4): 65-70.doi: 10.13385/j.cnki.vacuum.2024.04.12

• Measurement and Control • Previous Articles     Next Articles

Design and Research of a High Precision External Heat Flow Simulation Control System

WANG Guo-fang, LIU Jia-lin, SUN Cheng-kai, LIU Hai-jing, ZHANG Jing, DONG De-sheng   

  1. Shanghai Institute of Spacecraft Equipment, Shanghai 200240, China
  • Received:2023-07-14 Online:2024-07-25 Published:2024-07-29

Abstract: Aiming at the problem that the function design of the traditional space external heat flow simulation control system is single and cannot quickly meet the requirements of complex tests, a high-precision, low-cost and multi-purpose external heat flow simulation control system based on high-power power supply was designed. The system uses a parameter self-tuning PID controller. Through MATLAB numerical simulation and test debugging, the feasibility and reliability of the system design are verified. The results show that under different heating structures and operating conditions, the control system has fast response speed, small overshoot, good stability and robustness, and has achieved good control effects. It has been successfully applied in the space thermal vacuum environment simulation experiments.

Key words: external heat flow simulation, temperature control, self-tuning PID, high precision

CLC Number:  V146.5;V146.8;TB75

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