<div dir="ltr"><div>Dear Federico, <br></div><div><br></div><div>I haven't seen the problem your addressing but you can check the following things perhaps to make sure everything is correct:</div><div><br></div><div>- Make sure the temperature coefficient is given in V/K (as normally it is given as %/K in datasheets)</div><div>- The component is designed so that if no "Load Voltage" input parameter is chosen zero, it assumes you have connected a mppt charge controller and thus only the Pmpp, Vmmp, Impp are correct to be used. If you however have determined a load voltage > 0 V (like direct connection to a load) then probably the Parray, Varray, Iarray will follow the load.</div><div><br></div><div><br></div><div>Make checking this two things can help you sort out the problem.</div><div><br></div><div>Kind regards, <br></div><div>Michel<br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr">Op di 4 dec. 2018 om 20:10 schreef -- Fed -- via TRNSYS-users <<a href="mailto:trnsys-users@lists.onebuilding.org">trnsys-users@lists.onebuilding.org</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Hello,</div>
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i want to use type 94a for simulating a PV collector.</div>
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I supply the parameters from a real collector datasheet in the proforma. Everything seems to work, but the voltage of the collector (both MPP and open circuit) does not seem to follow the temperature coefficient for V_oc. <span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:12pt">No
matter which value a put as PARAMETER 8 (</span><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:12pt">Temperature coeficient of Voc (ref. cond.)), the PV voltage does not change...</span></div>
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Is there anyone who experienced the same issue?</div>
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is there a problem with the type or am i doing something wrong?</div>
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Thanks in advance,</div>
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Federico</div>
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