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Vol. 186, Issue 3, March 2015, pp. 148-153




Real Time Control of Non-Linear Conical Tank


School of Electrical Engineering, VIT University, Vellore 632014, Tamil Nadu, India
Tel.: 9597368220

E-mail: sitachin09@gmail.com


Received: 14 January 2015 /Accepted: 27 February 2015 /Published: 31 March 2015

Digital Sensors and Sensor Sysstems


Abstract: In this paper a real time control of non-linear conical tank has been performed. In this article control comparison between fuzzy controller and conventional PI controller is made for the conical tank system. Conical tank is used in most of the industrial processes because it assures optimal stirring and mixing of ingredient. The tank can easily and quickly be emptied and also conical shape ensures efficient cleaning, better mixing and drainage of solid wastes, slurries, thick liquids etc. Moreover these tanks can be used for both boiling as well as extraction process. Controlling the liquid level and flow of liquid in conical tank is a complex process because of the nonlinearity and constantly changing cross section of the tank. A conventional PI (proportional-integral) controller and MISO (multiple input single output) fuzzy controller was used and their performance is compared.


Keywords: Non-linear process, Conical tank, PI controller, Fuzzy controller, LabVIEW control design and simulation toolbox, Fuzzification.


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