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文章在分析航天产品真空热试验时被控对象的特点及目前在温度控制方面存在的主要问题及难点的基础上,进行了极点配置自适应PID控制器的设计,并通过2次热真空试验验证了该控制方法的控制效果。结果表明,该PID控制方法具有超调量小、适应性强且在过程中无需手动调节等优点,较好地解决了目前热真空试验中控制系统智能性差和超调量大的突出矛盾,极大地减轻了试验人员的值班强度。
Based on the analysis of the characteristics of controlled objects during vacuum thermal testing of aerospace products and the main problems and difficulties in current temperature control, the paper designs the pole-placement adaptive PID controller and verifies it by two thermal vacuum tests The control method of the control effect. The results show that the PID control method has the advantages of small overshoot, strong adaptability and no manual adjustment in the process, and solves the outstanding contradiction between the poor control system and large overshoot in the current thermal vacuum test. Earth reduced the intensity of the test staff on duty.