TO DESIGN AND FABRICATE A MICROCONTROLLER BASED TEST FACILITY FOR A THREE PHASE FILTER MODULE

Gagana Sringeri, Shishira P

Abstract: In Industrial power plants,noise at high frequency at the generator output is very high. This noise has significant effect on Digital Automatic Voltage Regulator (DAVR).Thus resulting in more than two zero crossing per phase and these extra zero crossing per phase has resultedin channel change over from „AUTO TO MANUAL" in many of the power plants. To overcome this problem, BHEL developed a Three Phase Filter circuit(Electronic module 69203IA2AA) using active and passive components. This active filter will help in removing the high frequency noise on the generator output and gives near perfect clean AC input to the Interrupt Generator (Electronic module 69203GB1AA) of the Digital Automatic Voltage Regulator (DAVR) system for computation. To functionally test this filter circuit for its specification and performance, we developed a test facility using Microcontroller 89S51 and Digital Display Unit and is called as “The IA2A TEST JIG”.

Keywords: MICROCONTROLLER

DOI: https://doi.org/10.15623/ijret.2015.0426011