IJERT-Design And Development Of Ph Neutralization Process : A Fuzzy Logic Based Electronics Sensing And Control System (original) (raw)
2013, International Journal of Engineering Research and Technology (IJERT)
https://www.ijert.org/design-and-development-of-ph-neutralization-process-a-fuzzy-logic-based-electronics-sensing-and-control-system https://www.ijert.org/research/design-and-development-of-ph-neutralization-process-a-fuzzy-logic-based-electronics-sensing-and-control-system-IJERTV2IS80349.pdf pH process is a chemical process of acid and base reaction in a aqueous solution. In many chemical process industries, pH measurement and controlling is extensively used to yield a good quality product. The pH control is a difficult puzzle to solve due to strong nonlinear characteristics and utmost sensitivity to various disturbances in the process. In this paper a specific fuzzy controller (FL) is developed for control or regulation of pH parameter of pH process, which is carried out in a Continuous Stirred Tank Reactor (CSTR). Benchmark PID (Proportional + Integral + Derivative) controller is primarily used for comparative study. The model of fuzzy pH control process considered has highly nonlinear characteristics with time delay. Overall process properties are described in terms of nolinearity and robustness. Design and development of fuzzy control (FLC) carried out based on the fuzzy set theory and classical control principle. In FLC design the classical control principles have been implemented on the apparatus of approximate reasoning of Fuzzy Logic. In this practical study Fuzzy Model (FM) describes the human intelligent knowledge and excellent pH control experience of expert operator without mathematical format. Current work present the how FLC is a powerful alternative to the conventional methods and is suitable and convenient as it directly deals with non-stationary and uncertain behavior of pH process. Experimental results obtained demonstrate that fuzzy based controller is effective and potentially benefit for this typical and difficult control problem.
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