基于模糊PID控制的污水处理溶解氧控制系统  

Design for Dissolved Oxygen Control System Based on Fuzzy-PID Control in Wastewater Treatment

作　　者：杨世品[1] 陈林[1] 李山春 王俊[1] 

机构地区：[1]武汉科技大学信息科学与工程学院,湖北武汉430081 [2]珠海思特自动化系统工程有限公司,广东珠海519000

出　　处：《仪表技术与传感器》2009年第1期88-90,共3页Instrument Technique and Sensor

基　　金：湖北省教育厅重点项目基金资助(D200611002)

摘　　要：为了解决模糊控制中的强化调节作用与静态稳定性之间的矛盾,针对污水处理的溶解氧控制系统的非线性、大惯性、大时滞及时变和难以精确建模等特点,提出将模糊控制的强鲁棒性和传统PID控制的优稳态特性相结合的思路,设计了模糊PID控制模型。该控制方法在珠海丽珠制药污水处理控制系统中得到了应用,与原来的常规PID控制系统相比,稳定性更好,能耗更低,具有一定的推广应用价值。The process of dissolved oxygen control system in wastewater treatment is of nonlinearity, big inertia, long time delay and incapable to establish the precise model. To solve the contradiction between the intensifying adjustment and the static stability in fuzzy control, a technique that combined the robust adjustment of fuzzy control and the good static stability of conventional PID control was proposed. The model of fuzzy-PID control was given. The new control method was applied in wastewater treatment control system of Lizhu pharmacy factory in Zhuhai. Compared with the normal PID control method, the application results showes that the new method has better stability and lower energy consumption. The strategy can be easily popularized.

关 键 词：模糊PID 污水处理 溶解氧 

分 类 号：TP181[自动化与计算机技术—控制理论与控制工程]