基于模糊PID控制的变频调速恒压供水控制系统

针对中、大容量供水系统中,由于供水管网铺设复杂、弯管多、控制对象具有高阶次、大滞后、强耦合、非线性及参数时变的特点,难以利用有效的解析式数学模型进行闭环控制,提出了采用可调整修正因子模糊PID控制算法实现恒压供水系统的设计。该设计方案提高了变频调速恒压供水系统的稳定性、可靠性。

The frequency control water supply system based on PID fuzzy control algorithm

The paper revolves around the design of large and medium-size water supply system in which the adjustable modifying factor PID fuzzy control algorithm is adopted.The design offers a solution which is targeted at the closed-loop control by analysis mathematical model is not efficiently achievable,because of the complicated water pipelines and numerous curves,as well as the fact that the objects to be controlled are characterized by their high order,big lagging,close coupling,non-linear and time-varying parameters.The design can enhance the stability and reliability of the frequency control water supply system.