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Ashley, I am not too surprised by the 100W output with 1000W incident;
PV panels are not very efficient and depending on ambient
conditions such as temperature and windspeed a 10% efficiency is
not unreasonable. It is a little more troubling that increasing
the array area does not have an impact on the output power. If you
are using Trnsys17 then please send the project as well as any
other files needed in order to run the project to your
distributor's tech support hotline. If you're not sure who to
contact then please send me an email containing the information in
your user17.id file (it can be opened with a text editor) and I
can put you in contact with the appropriate person. NOTE: please
do not reply to the entire mailing list with the information
above. Please send an email directly to me.
As to your question about parameter 20; I_L is called the light current and is one of the five parameters used to describe the behavior of an equivalent circuit that is used to model PV behavior. Be very careful in modifying those parameters; they are all highly interlinked with one another and cannot realistically be changed independently of one another. For additional information on the variable and on the model I would recommend you look at the Type194 section of the 04-MathematicalReference manual. kind regards, David
On 07/20/2016 09:35, Easterling, Ashley
J via TRNSYS-users wrote:
-- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com |