摘要
针对污水好氧处理系统中溶解氧的控制难点,建立了溶解氧浓度的数学模型,在此基础上利用MATLAB仿真软件,分别用传统PID控制方法、模糊控制方法和模糊PID控制方法对其进行了仿真和对比.结果显示,模糊PID控制在响应快速性和稳定性方面的综合控制效果最好.
According to the characteristics of controlling dissolved oxygen in aerobic wastewater treatment system such as time-delay, nonlinearity and multi-disturbances, a method of dissolved oxygen based on fuzzy-PID control is proposed. Firstly the mathematical model of dissolved oxygen is established, then simulations with MATLAB and relative analyses are made by methods of traditional PID controller, fuzzy controller and fuzzy-PID controller respectively. It shows that the fuzzy-PID controller can achieve fine dynamic responsibility and good stability of controlling dissolved oxygen.
出处
《陕西科技大学学报（自然科学版）》
2009年第3期134-137,共4页
Journal of Shaanxi University of Science & Technology
