基于前馈模糊反馈的纸浆漂白温度控制系统设计  

The Design of Temperature Control System in Pulp Bleaching Based on Fuzzy Feed-Forward Control

作　　者：尤斌[1] 彭晗[2] 胡慕伊[1] 熊智新[1] 

机构地区：[1]南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京210037 [2]南京林业大学化学工程学院,江苏南京210037

出　　处：《造纸科学与技术》2013年第4期74-77,95,共5页Paper Science & Technology

基　　金：江苏省制浆造纸科学与技术重点实验室开放基金项目(201010)

摘　　要：针对纸浆漂白过程温度控制的大时滞、大惯性、对象参数时变的特点,探讨了最小二乘法在辨识参数中的应用,设计了一种基于模糊逻辑的前馈反馈温度控制系统。结合传统模糊PID反馈控制器,利用前馈控制补偿可测干扰——蒸汽压力对于系统输出的影响。仿真结果表明,改进的控制系统相比传统单回路控制具有更好的动态特性和鲁棒性。本文最后给出了该控制系统的工业实施方案,验证了其广阔的应用前景。Pulp bleaching process is a large inertial, large time -delay, time -varying process with much random disturbance. Aiming at these questions, this paper discusses the application of least - square estimation in parame- ter identification. Combined with traditional fuzzy PID feedback controller ,the fuzzy feed - forward control system is applied to compensate the impact disturbance --vapor pressure on system output. Simulation result shows that im- proved control system is much better than the traditional single - loop PID control system in dynamic performance and robustness. At last the paper verifies its broad application prospects by industrial embodiment of the control system.

关 键 词：漂白 最小二乘法 模糊PID 前馈反馈 

分 类 号：TS736[轻工技术与工程—制浆造纸工程]