The Research of the Intelligent Given and Control for the Dissolved Oxygen in the Aeration Process of Sewage Treatment

Cong Li; Hui Zhang; Hou Zhao Dai; Ming Jian Huang

doi:10.4028/www.scientific.net/AMR.945-949.3530

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 945-949The Research of the Intelligent Given and Control...

The Research of the Intelligent Given and Control for the Dissolved Oxygen in the Aeration Process of Sewage Treatment

Abstract:

Based on these characteristics of dissolved oxygen control in sewage treatment aeration process, such as nonlinearity, large time delay in a timely manner and difficult to model accurately, this paper puts forward an intelligent control strategy of dissolved oxygen. First, according to feed water quality parameters and environmental factors, we build a rule-based multistage fuzzy controller to make intelligent dynamic dissolved oxygen value setting. Then the feedforward tracking and constant value control are proceed, according to error source and threshold we use fuzzy tracking, fuzzy PID separation control and compound control of the major and minor loop cascade control to stabilize the given value of dissolved oxygen. The system is fast and steady which is proved by simulation and experiment results.

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Periodical:

Advanced Materials Research (Volumes 945-949)

Pages:

3530-3533

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.945-949.3530

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Online since:

June 2014

Authors:

Cong Li*, Hui Zhang, Hou Zhao Dai, Ming Jian Huang

Keywords:

Dissolved Oxygen (DO), Feedforward Tracking, Fuzzy Multilevel Controller, Fuzzy Tracking and Fuzzy PID

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* - Corresponding Author

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