PLC BASED TEMPERATURE CONTROL USING PID CONTROLLER

Abstract

Temperature is a very important quantity, especially in the process industries all big plant like chemical plant, steel plant for them monitoring of tempera- ture is very important. So temperature controller are needed to kept temper- ature stable. In this project heat exchanger system is used which is usedIto transfer heatIfrom a hotI uid to aIcooler uid,Iso temperature controlIof outlet

uidIis of primeIimportance.ITo control theItemperature of outletI uid of theIshell and tubeIheat exchanger systemIa feedback conventionalIproportional-integral- derivative (PID) controller ,Feedback plus Feedforward and Internal Model Con- troller(IMC) are used.IThe designed controllersIregulates the temperatureIof the outgoingI uid to aIdesired set pointIin the shortestIpossible time irrespectiveIof load andIprocess disturbances,Iequipment saturation andInonlinearity.IA complete analysisIusing di erent kindIof PID parametersIFeedback plus FeedforwardIand Internal ModelIController(IMC),isIpresented in termsIof system response. Perfor- mance of theIcontroller is examinedIin terms ofIsettling time,Irise time andIpercent overshoot.Indian.