[TRNSYS-users] PV problem (type 94)

David BRADLEY d.bradley at tess-inc.com
Wed Jan 4 12:09:05 PST 2012


Fabrizio,
  I didn't see your original email so I didn't get a chance to look at 
the system. However, Type94 has two "power" outputs. One of them assumes 
that the PV is attached to a maximum power point tracker (MPPT). The 
other assumes that the PV is attached directly to a load voltage. In 
this second case, the power is the intersection point between the PV 
curve and the load curve. If you specify the load voltage input as 0 and 
look at the second power output, you'll see zero power. In most 
applications, PVs are attached to an MPPT so you can usually use the 
power at maximum power point output.
Kind regards,
  David


On 12/26/2011 03:54, Dimas Firmanda Al Riza wrote:
> Dear Fabrizio,
>
>
> Try to check the weather data input file, or try to plot the output of 
> weather data component (type 109) if it is zero, may be that is the 
> problem. So you have to defined the weather data file. If not then 
> maybe you need to connect the controller to the battery and load.
>
> Regards,
>
> Dimas Firmanda Al Riza
>
>
> On Fri, Dec 2, 2011 at 11:22 PM, Fabrizio Leonforte 
> <fabrizioleonforte at gmail.com <mailto:fabrizioleonforte at gmail.com>> wrote:
>
>
>     Fabrizio Leonforte
>     Ph.D. candidate in Building Technology and Environmental Design
>     Politecnico di Milano - BEST Department
>     Via Bonardi, 9
>     I-20133 Milano, Italy
>     Tel: +39 02 2399 9468 <tel:%2B39%2002%202399%209468>
>
>
>
>
>     2011/12/2 Fabrizio Leonforte <fabrizioleonforte at gmail.com
>     <mailto:fabrizioleonforte at gmail.com>>
>
>         dear all,
>         I've some problem with pv simulation:
>         When I simulate the configuration that I attach to you, the
>         result of Energy power is zero.
>         I have linked total radiation between wether file and pv type 94.
>         Can anybody help me?
>
>         Fabrizio Leonforte
>         Ph.D. candidate in Building Technology and Environmental Design
>         Politecnico di Milano - BEST Department
>         Via Bonardi, 9
>         I-20133 Milano, Italy
>         Tel: +39 02 2399 9468 <tel:%2B39%2002%202399%209468>
>
>
>
>
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>
>
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-- 
***************************
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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