Hi,
I am going to to design a AC mains voltage measurement system.Tthe input specifications are as given below
Input Voltage- 230Vrms 50Hz
Harmonics to be measured- up to 15th Harmonics
I need to know what should be my sampling rate to measure AC signal of 50HZ with up to 15th Harmonics.
The max input frequency is 50*15= 750Hz
As per nyquist criteria Fs min = 750*2= 1500Hz
But what should be the optimum sampling rate- is it as per nyquist criteria or more than that.
How to find out optimum sampling frequency ? (Minimum and maximum) and how to select adc as per sampling rate specification.
Thanks and Regards,
Swaminath