arup
Member level 2
Hello,
I am calculating residual current from 3 phase sinusoidal ,50 Hz current signal using on chip 12 bit ADC(of micro controller).Three phase currents are accurately measured.But I am getting quite good amount of residual current value( even at 2 Amp current) while 3 phase current are balanced ( both in magnitude & angle).I am using simple vector sum method to get the residual current form ADC count ( r, y, b phases).Samples are taken at a interval of < 200 uSec.
Plz share if you have any algorithm or better technique to resolve this issue.
Thanks & regards...
I am calculating residual current from 3 phase sinusoidal ,50 Hz current signal using on chip 12 bit ADC(of micro controller).Three phase currents are accurately measured.But I am getting quite good amount of residual current value( even at 2 Amp current) while 3 phase current are balanced ( both in magnitude & angle).I am using simple vector sum method to get the residual current form ADC count ( r, y, b phases).Samples are taken at a interval of < 200 uSec.
Plz share if you have any algorithm or better technique to resolve this issue.
Thanks & regards...