模糊控制在循环水加药联合处理系统中的应用研究

Fuzzy Control on Adding Medicament Control of Circulating Water Treatment

针对火电厂循环水被控对象为纯滞后、大惯性和受环境温度影响明显等特点,将模糊控制算法引入循环水加药联合处理控制系统,与原有常规PID控制系统进行实际运行比较,结果表明该系统不仅能有效地避免大滞后环节在控制系统中带来的振荡现象,而且能够克服环境温度对控制系统的干扰,取得了理想的控制效果。

Aiming at the controlled object circulating water system in the power plants with pure delay, inertia,and sensitivity to the environmental temperature,this paper applys the Fuzzy algorithm to adding medicine control system of circulating water system.Comparing advanced system properties with common PID control system,the result demonstrates that the advanced one not only avoids the oscillation of the control system with pure delay elements,but also restrains the environmental temperature disturbance to get goods control effect.