Issue1575 add pv model #1766
Issue1575 add pv model #1766
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The proper way to load files is with Modelica.Utilities.Files.loadResource
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@LauraMaier : Pleae see the inline comment for the required changes. I still need to run the model (which fail in Dymola 2024x and Optimica, see inline comment for the cause).
IBPSA/Electrical/BaseClasses/PV/BaseClasses/PVOptical/AirMass.mo
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IBPSA/Electrical/BaseClasses/PV/BaseClasses/PVOptical/AirMass.mo
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IBPSA/Electrical/BaseClasses/PV/BaseClasses/PVOptical/AirMassModifier.mo
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IBPSA/Electrical/BaseClasses/PV/BaseClasses/PVOptical/AirMassModifier.mo
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| HGloHor=realPassThroughHGloHor.y; | ||
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| solHouAng = realPassThroughSolHouAng.y; | ||
| solDec=realPassThroughSolDec.y; | ||
| cloTim=realPassThroughCloTim.y; | ||
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| k_t =if HGloHor <= 0.01 | ||
| then 0 | ||
| else min(1, max(0, (HGloHor/(GSC*(1 + 0.033* | ||
| cos(360*(Modelica.Constants.pi/180)*cloTim/24/60/60/365)* | ||
| (cos(lat)*cos(solDec)*cos(solHouAng) + sin(lat)*sin(solDec))))))) | ||
| "Factor needed for Erbs diffuse fraction relation"; | ||
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| // Erbs diffuse fraction relation | ||
| HDifHor = if HGloHor <= 0.01 | ||
| then 0 | ||
| elseif k_t <= 0.22 | ||
| then (HGloHor)*(1.0 - 0.09*k_t) | ||
| elseif k_t > 0.8 | ||
| then (HGloHor)*0.165 | ||
| else (HGloHor)* | ||
| (0.9511 - 0.1604*k_t + 4.388*k_t^2 - 16.638*k_t^3 + 12.336*k_t^4); |
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Make these assignments in the variable declaration so that we don't mix connect statements with assignments, and use regularization (also as it is only an example, regularization is less critical here).
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Done except for regularization since I would need support here because I tried but did not get it running.
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@mwetter After some months, I started working on this model again. I was trying to implement regularization but failed to do so since it changed the model output. Would you mind implementing a best practice in one line of code so that I can adapt it to the other equations requiring regularization? That support would be highly appreciated :) |
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@LauraMaier : Nice to see that we can work toward completion of this. Please point me to the code, and ideally also to the actual equation if it is a complicated one so I fully understand what the physics is. It may take a while as I will be out of office most of the next two weeks. |
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@mwetter: IBPSA/Electrical/DC/Sources/Validation/BaseClasses/partialPVValidation.mo and I really just need one examplary line of code to understand the desired implementation. |
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This closes #1575
We added a new PV model to the IBPSA library.
The model has the following characteristics: