模糊自适应PID控制的研究及应用仿真

传统PID控制器参数的整定是在获取对象数学模型的基础上,根据某一整定规则来确定的,难以适应复杂多变的控制系统。针对其参数整定不良、性能欠佳,对被控过程的适应性差等缺点采用模糊控制与自适应PID控制结合起来,设计了模糊自适应PID控制器。利用模糊推理方法实现对PID参数的在线自整定,进一步完善PID控制器的性能,提高系统的控制精度。仿真结果表明该模糊自适应PID控制器既具有PID控制器高精度的优点,又具有模糊控制器快速、适应性强的特点,使被控对象具有良好的动、稳态特性,有较好的工程应用前景。

Research on Fuzzy Self-adaptive PID Control and Its Emulation

The tuning of parameters for traditional PID controllers was based on the mathematical model of the object and on some rules,which was difficult to adapt to complicated and variable control systems. In view of the shortcomings of PID controllers such as bad parameter tuning,not good enough performance and weak adaptability,a self-adaptively adjusted fuzzy-PID controller is proposed. The use of fuzzy logic controller makes the parameter self-adapting of PID controller possible,it also perfects the properties...