Design of sewage treatment system by applying fuzzy adaptive PID controller"

Liang-Ping Jin; Hong-Chan Li

doi:10.1117/12.2009201

14 March 2013 Design of sewage treatment system by applying fuzzy adaptive PID controller

Liang-Ping Jin, Hong-Chan Li

Proceedings Volume 8768, International Conference on Graphic and Image Processing (ICGIP 2012); 876879 (2013) https://doi.org/10.1117/12.2009201
Event: 2012 International Conference on Graphic and Image Processing, 2012, Singapore, Singapore

Abstract

In the sewage treatment system, the dissolved oxygen concentration control, due to its nonlinear, time-varying, large time delay and uncertainty, is difficult to establish the exact mathematical model. While the conventional PID controller only works with good linear not far from its operating point, it is difficult to realize the system control when the operating point far off. In order to solve the above problems, the paper proposed a method which combine fuzzy control with PID methods and designed a fuzzy adaptive PID controller based on S7-300 PLC .It employs fuzzy inference method to achieve the online tuning for PID parameters. The control algorithm by simulation and practical application show that the system has stronger robustness and better adaptability.

Citation Download Citation

Liang-Ping Jin and Hong-Chan Li "Design of sewage treatment system by applying fuzzy adaptive PID controller", Proc. SPIE 8768, International Conference on Graphic and Image Processing (ICGIP 2012), 876879 (14 March 2013); https://doi.org/10.1117/12.2009201

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