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Energy Analysis of High Frequency 3 Phase

Question asked by cgreen03 on Jul 30, 2014
Latest reply on Aug 1, 2014 by hmani

I have been trying to find the best way to measure 3 phase power for my thesis. My thesis works with RC hobbyist size BLDC motors. I am looking at better modeling the speed controller's efficiencies. Therefore I am measuring the DC power in and the AC power out.

The AC power out is:


Voltage unipolar square-wave

3 phase with no common ground

motor takes about a 6-8 kHz signal frequency

But the Speed controller has a switching frequency of 12 kHz

Vrms= 2-24VAC



I can reduce said Vrms limits and Irms limits to achieve better accuracy.

I looked into the ADE 7762 but its Bandwidth looks too small.

Suggestion on which units I should use?