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RESEARCH PRODUCT

A Laboratory Project for Advanced Control Methods: Control of a Neutralization Process

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Abstract A neutralization process is used in a laboratory project for experimenting advanced control techniques. Students may choose among several techniques to experience the behaviour of advanced controller action: adaptive control, GMG control, fuzzy control, self tuning fuzzy control, neural control, neuro-fuzzy control. The experience in advanced self tuning controller based on fuzzy logic is proposed for the control of a neutralization process. The test of a self tuning controller based on fuzzy logic is a very important case because the resulting structure of the controller is easy to implement and modify: the final results are compared with those deriving from the application of a conventional PI controller for the control of level and pH. The architecture of a self tuning fuzzy controller is actually very flexible: it is possible to modify easily its constituents, set of rules, membership functions and scale factors. The interactive comparison of the various control loops actions on the system has allowed a deeper understanding of process dynamics and control methodology. Moreover the innovative student approach encourages the problem-based learning.