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| Dissolved Oxygen Concentration Control System Based on Expert Feed-forward and Fuzzy PID Feed-back Control |
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| DOI：10.11981/j.issn.1000-6842.2016.02.43 |
| Key Words:dissolved oxygen concentration； expert feed-forward control； fuzzy PID control； MATLAB simulation |
| Fund Project: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)。 |
| Author Name | Affiliation | | 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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| 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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