integral of waveform graph to calculate area under curve over time

[pyae]

Hello ,

Please find my attached VI and please help me for integration to get area undercut for my waveform graph.

I would like to find total  Energy output from my wind power  waveform graph oever one month period of time.

I believe i have to integrate to get area under curve and so i m now using integral tool in labview as attached. 

As I don't have expected ans for my result and so i want to make sure the tool that i m using is correct.

Please advise me which method of integration shall i use for my graph.

[crossrulz]

I don't know about your calculations to get the Wattage.  But as far as integration, you really should supply a dt (sample rate) in order to get a proper energy measurement.  I would use your second integration method (the one with "Result" as the indicator) and give it the dt as well.

[pyae]

hello crossrulz,

I would like to integrate my power array over time ( power array is on every one min interval) and the whole graph is for one month . So , shall i put dt = 1? 

[altenbach · Accepted solution]

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pyae wrote:

I would like to integrate my power array over time ( power array is on every one min interval) and the whole graph is for one month . So , shall i put dt = 1? 

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You put dt at whatever units you want in the final result. if you want Wh, you want dt to be in hours. if the spacing is currently one minute, you can express that in fractional hours and use the result as dt. Try dt=1/60.

[pyae]

Hi altenbach ,

thanks for your advise and it's giving the estimated answer. 

regards

pyae