[TRNSYS-users] PV inverter 194b
Sandeep Singh Chahal
chahals at uab.edu
Wed Oct 28 11:17:00 PDT 2015
Hello David and TRNSYS users,
Thanks David! I will try the alternative tool as well. The run time issue has been solved now, I asked from campus IT help department and they have fixed it. Some kind of administrative permission was required according to their statement.
Now, I am able to plug in the pv parameters by clicking the magic wand icon in the left lower corner of the parameters tab of (type 194b). also, it calculates all five parameters without any error. Next, after exiting the EES window and when I run it in simulation studio; it gives following error.
"type 194 TRNSYS Message 133 : The current Unit has specified more Parameters than are expected. Reported information : 24 PARAMETERS are required and 29 PARAMETERS were specified. "
how can I tackle this issue.
Sandeep Chahal, B.Tech
Research Assistant
UAB School of Engineering
________________________________
From: David BRADLEY <d.bradley at tess-inc.com>
Sent: Wednesday, October 28, 2015 9:56 AM
To: TRNSYS users mailing list at OneBuilding.org; Sandeep Singh Chahal
Subject: Re: [TRNSYS-users] PV inverter 194b
Sandeep,
My apologies for the delay in responding. Some users have experienced problems using the plugin on certain operating systems and while I have not seen the error that you mention it could be the same problem. I will send you a link to an alternative tool for generating the Type194 parameters. You will need to run the tool seperately and then manually enter the values that it generates but I have found it to be much more reliable than the plugin.
kind regards,
David
On 10/27/2015 10:43, Sandeep Singh Chahal wrote:
Hello TRNSYS users,
I am trying to modify the pv inverter (type-194b) by clicking on the magic wand icon in the lower left corner of the parameters
tab of the proforma).
Next, when I hit calculate it gives this message Visual fortran run-time error “
forrtl:severe (28): CLOSE error, unit 196,file”unknown” DFORRT>DLL 04074BD9
unknown unknown unknown”
Can anyone please help; how I can tackle this error?
Sandeep Chahal
Research Assistant
UAB School of Engineering
**********************-----------------------------------------------*********************************************
Sotiris,
When you choose a PV from the list, all of the fields should still
show "?????" until you click on the "calculate" button in the
"calculations" section of the plugin. When you manually enter
parameters, the same is true; the fields at the bottom for the 5
reference parameters should all show "?????" until you choose
"calculate". The plugin transfers the computed results back to the
proforma if it was able to obtain a good solution once you select "Exit"
from the File menu. If the plugin did not solve to within tolerances, it
will show you its best guess of the answers but it will not transfer the
values back to the plugin automatically. You can transfer them manually
if you need to.
If you are having trouble with a particular PV module, please send me
the input data. I may be able to generate the parameters for you using a
different tool.
Best,
David
On 7/22/2013 03:48, Sotiris Papantoniou wrote:
>
> Dear David and all Trnsys users,
>
> The thank you for the information for the inverter, I have managed to
> find the data for the data file. Coming back to the trnsys plug-in of
> type 194, the plug-in seems to work in a mysterious way.
>
> If I select a specific photovoltaic type from the list no data are
> available.
>
> If I add manually some data on the plug-in, the 5 parameters are
> identical to example.var's parameters.
>
> Is there something missing from my plug-in? Am I doing something wrong?
>
> Thank you
>
> Sotiris
>
> *From:*David BRADLEY [mailto:d.bradley at tess-inc.com<http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org>]
> *Sent:* Thursday, July 18, 2013 7:57 PM
> *To:* TRNSYS users mailing list at the Solar Energy Lab, UW-Madison
> *Cc:* Sotiris Papantoniou
> *Subject:* Re: [TRNSYS-users] Question related to the inverter of type 194
>
> 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
>
>
>
>
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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
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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://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org>
http://www.tess-inc.com<http://www.tess-inc.com/>
http://www.trnsys.com<http://www.trnsys.com/>
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Principal
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22 North Carroll Street - suite 370
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P:+1.608.274.2577
F:+1.608.278.1475
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