Detecting Power Grid Synchronisation Failure on Sensing Frequency or Voltage beyond Acceptable Range
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 4
Abstract
Our project is designed to develop a system to detect the synchronization failure of any external supply source to the power grid on sensing the abnormalities in frequency and voltage. There are several power generation units connected to the grid such as thermal, solar etc to supply power to the load. If any deviation in voltage and frequency beyond the acceptable limit of the grid then the same feeder should automatically get disconnected from the grid. This prevents in large scale black out of the grid. So it is preferable to have a system which can warn the grid in advance so that alternate arrangements are kept on standby to avoid complete grid failure. So we are designing a system based on a PIC microcontroller which is the family of specialized microcontroller. The microcontroller monitors the under/over voltage using voltage sensors and is being derived from a set of comparators. As the frequency of the mains supply cannot be changed, the project uses a variable frequency generator (555- timer) for changing the frequency, while a standard autotransformer is used to vary the input voltage to test the functioning of the project. A lamp load (indicating a predictable blackout) is being driven from the microcontroller, in case of voltage/frequency going out of acceptable range and the fault indication will be indicated in the display.
Authors and Affiliations
Inntiaz A R, Md Maaz, Jinka Varalakshmi, Heena Kousar, Hanumantha Reddy
Keywords
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