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Dear Binbin Ge,<br>
The PV module requires not only total but beam and diffuse
radiation as well as incidence angle. By leaving the beam and
diffuse radiation inputs to type94 unconnected, the model takes
these to be constantly zero and all the radiation falling on the
module is assumed to be ground reflected. If you are able to
generate beam and diffuse radiation (as well as total) then you
should include them in your data file and read these with your Type9
weather data reader. Note, I am a little confused when you say that
the weather can be read by Type109 but in your simulation, it is
being read by a Type9. If you cannot generate beam and diffuse then
somehow you will need to generate the total on the horizontal then
use a type16 radiation processor to compute an estimate of the split
between beam and diffuse radiation.<br>
Best,<br>
David<br>
<br>
<br>
<div class="moz-cite-prefix">On 12/3/2012 07:18, 葛彬彬 wrote:<br>
</div>
<blockquote
cite="mid:4009aea3.11bdb.13b60eb563b.Coremail.19wmdyx@163.com"
type="cite">
<div
style="line-height:1.7;color:#000000;font-size:14px;font-family:arial">
<div>Dear sir/Madam:</div>
<div> I am a graduate student student from Shanghai Jiao
Tong University, Shanghai,China. These days I am using the
Trnsys 16 to simulate a stand alone PV station.But as I am
going with the program, some errors come up. The weather data
is loaded by type 109 and it can read the data rightly. And I
am using type94a to simulate the PV array. But for a 900Wp PV
station, the output is quite low. I am confused about the
problem. Please help me to check the model attached in the
email.</div>
<div> Thank you very much!</div>
<div> Best </div>
<div>Regards!</div>
<div>Binbin Ge</div>
</div>
<br>
<br>
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<pre class="moz-signature" cols="72">--
***************************
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
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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