张爱娟,胡慕伊,黄亚南,熊智新.基于专家前馈-模糊PID反馈的溶解氧浓度控制方案研究[J].中国造纸学报,2016,31(2):43-48 本文二维码信息
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基于专家前馈-模糊PID反馈的溶解氧浓度控制方案研究
Dissolved Oxygen Concentration Control System Based on Expert Feed-forward and Fuzzy PID Feed-back Control
  
DOI:10.11981/j.issn.1000-6842.2016.02.43
中文关键词:  溶解氧浓度  专家前馈控制  模糊PID控制  MATLAB仿真
Key Words:dissolved oxygen concentration  expert feed-forward control  fuzzy PID control  MATLAB simulation
基金项目:江苏省制浆造纸科学与技术重点实验室;江苏高校优势学科建设工程资助项目(PAPD)。
作者单位
张爱娟 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 
胡慕伊* 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 
黄亚南 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 
熊智新 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 
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中文摘要:
      在制浆造纸废水处理的好氧工段,溶解氧浓度是重要的被控变量,其控制过程是一个大滞后、多变量、非线性、多干扰的过程。本研究提出了用专家前馈控制器和模糊PID反馈控制器组成前馈-反馈控制系统来控制曝气池中的溶解氧浓度。MATLAB仿真和实际控制数据表明,基于专家前馈-模糊PID反馈的溶解氧浓度控制方案的控制效果好,超调小,响应速度快。
Abstract:
      In the aerobic treatment process of pulping and papermaking wastewater, dissolved oxygen (DO) concentration is an important variable. However, the process of DO concentration control is a large time-delay, multi-variable, nonlinear process with multi-interference. This paper designed a feed-forward and feed-back control system for controlling DO concentration. The expert controller was used as a feed-forward controller. The fuzzy PID controller was used as a feed-back controller. MATLAB simulation and practical applications results showed that DO concentration control system based on expert feed-forward and fuzzy PID feed-back control had good performance, including smaller overshoot, faster response. The control system could solve the problems of inaccurate and multi-interference of the DO concentration control math model.
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