jeffroche/test_repo — Issue #42: Temperature coefficient incorrect
Author: jeffroche
Created: 2012-02-03 06:13:37+00:00
State: open

Convo wihtB. Bourne:

Ben Bournethx
btw, can you send me a copy of the eqn that you're using?

4:34 PMJeffrey Rochewe're using this formula:
moduleTempCoef = (module.Impo*module.BVmpo + module.Vmpo*module.aImp)/(module.Impo*module.Vmpo)

I think you sent us an email a little while back with a correction for it but I believe that the formula you sent is what it used to be and we corrected it to the above

4:36 PMBen BourneCan you do a little exercise - calculate the resultant units using the units of the temp coefs as stored in the PVSim module database
I think you will find that they don't work out
but please prove me wrong
and disprove this:
TempCoef = Impo*(BetaVmpo + Vmpo*AlphaImp)/(Impo*Vmpo);
thx

4:48 PMJeffrey Rocheyou're right. shoot.
i'm positive that's what it used to be and we changed it a year ago for some reason