[TRNSYS-users] Question related to the inverter of type 194

[David BRADLEY]

Sotiris,
   The file contains the inverter efficiency as a function of the input 
power (in watts) and the input voltage (in volts). These values are 
typically published by manufacturers on the inverter specification 
sheets. If you do not have such a sheet then you can use the example 
data file and scale the input voltage and power to the range of input 
voltage and power that you need. Inverters tend to be quite efficient 
(around 95%) except when the input power is below about 5 to 10% of the 
rated input power at which point their efficiency drops quite a lot.
Kind regards,
  David


On 7/18/2013 02:28, Sotiris Papantoniou wrote:
>
> Hello Trnsys users,
>
> I am trying to model a pv-system with inverter. I have managed to 
> model the photovoltaic modules using the plug-in, but now I have to 
> model the inverter of the system. The characteristics of the inverter 
> are partly set in the parameters of the type and the external file 
> inserted by the user. Where can I find the information which are 
> related to this file.
>
> Thank you
>
> Sotiris
>
>
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users

-- 
***************************
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 at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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