How to calculate reactive power consumption by star connected capacitor bank at the output of three phase inverter? Is it 3*V^2/Xc ? what should I take V as line voltage or phase voltage?
If is possible, you can to connect net-analyzer and see the average of the reactive energy during the measurements.
You can obtain this data from reader of the meter of reactive energy, during consume with respect to load reactive.
Too, if is possible you can to connect net-analyzer and watch the read of the reactive energy during the measurements, though, you should obtain a measurements average
I am not sure why you are doing this. I will assume you want more information than the fundamental that the inverter is generating. An inverter introduces high frequency terms that are hard to measure and besides the capacitors do don’t have a flat frequency response. It’s a tough problem that unfortunately does not have an ideal answer. Power meters just do not get the measurements correct for waveforms with harmonic content. Personally I would use a scope with a current probe (suitable freq response) and isolated voltage probe. Adjust your scope sample rate to be much higher than your pwm inverter rate and use the scope math functions to get a decent answer.
I am doing simulation of three phase grid tied inverter so just want to confirm the theoretical values with simulation values. Thank you all for your valuable suggestions.
As far as I know, the word "reactive power" would be used only and only if the current waveform is a sine-like mathematical function. However, I know that it is yet used i.e. with Information Technologies equipment whose power supply deliver a current far from being described by a sine function. Before calculating any "reactive power", let me suggest you to carefully inspect your devices current waveform;
Sincerely yours
Jacques
You can obtain this data from reader of the meter of reactive energy, during consume with demand respect to load reactive.
Too, you can to connect net-analyzer and watch the readeres of the reactive energy during the measurements
Of another way, if is possible, you can to connect net-analyzer and watch the reader of the reactive energy during the measurements, though, you should obtain a measurements average.
Before using such so-called PF meter It may be useful to identify the way rhe AC current is converted into the DC current.as requested by the equipment being investigated.
If a Switching Modes Power Supply is used, it may deliver a periodic althouh not necessarily compliant with a sine waveform . Then, when you calculate the ACTIVE POWER {mean value of the square root of the (v*i)²}, the rest of the consumed power is nothing but the NON-ACTIVE POWER, not automatically the so-called REACTIVE POWER you are regarding.
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