(Publisher of Peer Reviewed Open Access Journals)
Navigation
ICETT-2012
Full-Text PDF
Paper Title : Fuzzy Based Control Using Lab view For Temperature Process
Author Name : S.Kavitha, B.Chinthamani, S.Joshibha Ponmalar
Abstract : This project aims at designing and implementing a fuzzy controller for Multiple Input Single Output temperature process. Temperature control of water in the tank is achieved by varying current to the heating rod and inlet flow rate by a fuzzy controller. The system consists of a tank, reservoir, variable speed pump, temperature sensor placed inside a heating tank containing the heating rod, voltage controlled current source and computer. Water is pumped into the tank from reservoir and RTD measures the current temperature. The signal from the temperature sensor is sent to the DAQ interfaced to the computer. LabVIEW software is used to acquire the input signal and send the output signal that is determined by the control algorithm. Fuzzy logic controller is designed in LabVIEW. Based on the set point temperature, the controller sets the appropriate current to the heating rod. If the required temperature is less than that sensed by the temperature sensor, the flow rate of water into the tank is controlled by a variable speed pump. While conventional controllers are analytically described by a set of equations, the FLC is described by a knowledge-based algorithm. Thus this system is highly efficient in both heating and reducing the temperature of the tank. A fuzzy logic controller gives faster response, is more reliable and recovers quickly from system upsets. It also works well to uncertainties in the process variables and it does not require mathematical modelling.
Keywords : Fuzzy logic control, resistance temperature detector, temperature sensor, multiple input single output.
Cite this article : S.Kavitha, B.Chinthamani, S.Joshibha Ponmalar " Fuzzy Based Control Using Lab view For Temperature Process " ,ICETT-2012 ,Page No : 8-13.