Controller Realization Of An Industrial Cascade Level System

Mohd Hafiz, Sulaiman (2009) Controller Realization Of An Industrial Cascade Level System. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Industries such as petro-chemical industries, paper making industries, waste management and others are the vital industries where liquid level and flow control are essential. Liquids will be processed by chemical or mixing treatment in the tanks, but always the level fluid in the tanks must be controlled. The title for this project is Controller Realization of an Industrial Cascade Level System. Industrial cascade level systems are commonly used in many process control applications to control, for example, the level of liquid in a tank. The system consists of a water tank, a water pump, an ultrasonic level sensor, a controller using NI USB-6009, and valve. The main objective this project is to design liquid level control system using NI USB-6009 for control this system, also identify suitable sensors and transducers used for industrial cascade level system. The industrial cascade level system to control the water in tank at desired level using NI USB 6009 Data Acquisition card as controller and the using ultrasonic level sensor to measure level water that desired. This system is jointed with LABVIEW software. The LABVIEW software will appear the interface for the start the system. When the system is start liquid enters the tank using a pump, liquid from the reservoir tank will inhale by pump and liquid will enter to tank. The requirement in this system is to control the rate of liquid delivered by the pump so that the level of liquid within the tank is at the desired point. A constant voltage will be applied to the pump so that a constant rate of liquid can be pumped to the tank. The height of the liquid inside the tank will then be measured and plotted. A simple model of the system can then be derived from this response curve. After obtaining a model of the system, a suitable controller will be designed to control the level of the water inside the tank. To control pump and level sensor we use NI USB-6009 to act as a controller.

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