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Static Excitation System Control for Power Alternator using PLC


Jolyn Cabrini.M , IFET College of Engineering; N.Anusha, IFET College of Engineering; R.Dhivya, IFET College of Engineering


Programmable Logic Controller, Current Limiters, Load Angle Limiter


This project proposes a control method for a static excitation system to regulate the terminal voltage of the machine and meets the excitation power requirements under all normal operating conditions. The main parts of Static excitation system are AVR, limiters, power system stabilizers, field breakers, field suppressors, thyristors, auto channel and manual Channel. The major faults in Static excitation system are classified as Trip Fault, Non-Trip fault and Protection change over faults. In any excitation system several logic systems are employed to control various operations like field breaker closing, tripping, pumpless transfer to standby channel when active channel has failed and alarming stages. In the existing system the detection of faults needs a greater number of electromagnetic relays and timers which is a tedious process to control. So, the project aims to replace 35 to 40 electromagnetic relays and timers by a single PLC unit thereby increasing the system reliability.

Other Details

Paper ID: IJSRDV7I20486
Published in: Volume : 7, Issue : 2
Publication Date: 01/05/2019
Page(s): 2032-2034

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