摘要： 针对发酵过程中罐温大滞后和时变性的特点,提出了一种基于PLC的复合模糊控制算法,其中模糊控制器和PI调节器都通过PLC来实现,这样既保留了PLC控制系统灵活、可靠、抗干扰能力强等特点,又大大提高了控制系统的智能化程度。实践结果表明:该系统能有效抑制纯滞后的影响,而且鲁棒性强。

关键词: 复合模糊控制, PLC, 温度, 发酵

Abstract: The container temperature has the character of large time delay and time-varying. A Fuzzy-PI control arithmetic is put forward based on PLC. The fuzzy controller and the PI adjustor are realized by PLC. That not only holds the flexible, reliable and anti-jamming character, but also largely improves the intelligentized degree of the control system. The practical results show that this system can restrain the effect of time relaying effectively and has strong robustness.

中图分类号: 

• TP273.5