Abstract: According to the features of time-delay and multi-capacity objects on the cloud chamber temperature control system, thermodynamics relevance analysis, linearizing the nonlinear link and mathematical modeling are researched; the new control strategy which is called self-adaptive fuzzy PID cascade control combines the fuzzy PID and cascade control; The result of the Matlab simulation experiments proves that the control strategy can effectively restrain the temperature overshoot, improve the dynamic performance and anti-jamming ability, which takes full advantages of adaptability and speediness about fuzzy PID and cascade systems; its excellent control effect is verified by cloud chamber temperature control application cases.

Key words: cloud chamber, thermodynamic model, self-adaptive fuzzy PID cascade control, Matlab simulation

摘要： 针对云雾室温度系统的纯滞后、多容等特点，对云雾室内各设备环节作必要的热力学关联性分析和非线性环节的合理线性化并逐一进行数学建模；以模糊PID控制策略与串级系统结构相结合的方法，提出了串级自适应模糊PID控制方案；通过Matlab仿真实验证明，上述控制方案能有效抑制温度超调，改善动态性能及抗干扰能力，充分发挥模糊PID的适应性与串级系统的快速性两者优点；给出了云雾室温度控制应用案例，验证了其良好的控制效果。

关键词: 云雾室, 温度热力学模型, 串级模糊自适应PID控制, Matlab仿真