基于模糊PID控制器的流量控制设计

Design of Flow Control Based on Fuzzy PID Controller

由于流量控制系统的数学模型难以建立,并且大多数流量控制系统存在着非线性问题,经过分析和实践,可以通过将常规的PID控制算法进行模糊自整定的方式解决这些问题。基于此,论文首先分析了模糊PID设计原理,然后根据原理确定出PID参数的模糊化规则,并根据该规则进行PID参数的模糊化及反模糊化,最后设计出基于模糊PID控制器的流量控制系统。

It is difficult to establish mathematical model of the flow control system, and most of the flow control system has nonlinear problem, through analysis and practice, these problem can be solved byusing the fuzzy self-tuning method on conventional PID control algorithm. Based on this, paper firstly analyzes the design principle of fuzzy PID, then determines the fuzzy rules of PID parameters according to this principle, and carries out the fuzzification and defitzzification o f PIDparameters according to the rule, finally, paper designs a flow control system based on fuzzy PIDcontroller.