21-10-2014, 12:30 PM
Abstracts: The electric drive systems used in industrial applications are increasing in order to meet the higher performance and reliability requirement of three phase induction motor which was invented by Nikola Tesla in 1888 while he was a college student. Today about 90% of all industrial motor applications use three phase induction motors because they are simple in design, easy to maintain, and are less costly than other designs. In order to have smooth operation of such combined system of industrial application recent technique such as automation is used. In the development of automation controllers the trend has been to move towards soft controllers so as to provide better control, more flexibility and more reliability with intelligent diagnostics of machine faults. So industries have gradually moved from conventional relay logic control to programmable logic control (PLC). As Three phase squirrel cage induction motors are widely used motors in industry, the implementation of monitoring and control system for the induction motor based on programmable logic controller technology is described. Also the implementation of a hardware and software for speed control and protection with the result obtained from the test on induction motor performance is provided. Variable Frequency Drives (VFD) is use to control the motor rotation direction and rotation speed of the three phase induction motor. All the required control and motor performance data will be taken to a personal computer via PLC for further analysis. This monitoring and controlling from the computer is done using SCADA software thereby interfacing PLC and SCADA. Thus in this way the overall performance of industrial based induction motors can be optimized using recently developed and ease operated Automation.