將模糊控制理論應用于凍干試驗機的溫度控制系統中，有助于提高溫度響應曲線的
跟隨性及加快反應時間，從而可以提高溫度的控制精度。通過PID 控制與參數自適應模糊PID 控制的對比的MATLAB 仿真實驗，獲得了調節時間有明顯改善的參數自適應模糊PID 控制器算法；對真空冷凍試驗機系統的近似模型進行了定量分析，并結合實踐經驗，給出了模型的數學表達式。應用新研制的控制器算法,對具有非線性、大滯后特征的凍干試驗機溫度系統具有很好的控制作用，彌補了傳統的PID 控制的不足。
關鍵詞：真空冷凍干燥 溫度控制 自適應模糊PID 控制
Abstract: Applied fuzzy control theory to temperature control system of dry-out test machine, it’s useful improving following in agreement with curvilinear of respondent to temperature and accelerating respondent time, then the better control precision will be get. Compared PID control with adaptive fuzzy PID control by Matlab simulation, it prove that the arithmetic of adaptive fuzzy PID control has better performance in improving adjusting time. The model of mathematics is presented by quantitative analysis for approximate model of vacuum refrigeration test machine and practical experiments. Using new arithmetic, we can perfectly control temperature of dry-out machine, especially machine of non-linear and big lagging characteristic, and improve performance of traditional control machine.
Keywords: vacuum freeze-dry, temperature control, adaptive fuzzy PID