jeffroche/test_repo — Issue #254: Temperature coefficient incorrect
Author: jeffroche
Created: 2012-02-03 07:49:16+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