diff --git a/IBPSA/Electrical/DC/Sources/PVSingleDiode.mo b/IBPSA/Electrical/DC/Sources/PVSingleDiode.mo index 5624413327..551b713d7c 100644 --- a/IBPSA/Electrical/DC/Sources/PVSingleDiode.mo +++ b/IBPSA/Electrical/DC/Sources/PVSingleDiode.mo @@ -58,33 +58,52 @@ equation annotation (Icon(coordinateSystem(preserveAspectRatio=false)), Diagram( coordinateSystem(preserveAspectRatio=false)), Documentation(info=" -
This is a photovoltaic generator model based on a single diode approach with replaceable thermal models accounting for different mountings.
-The solar cell is approximated as a simplified diode circuit following the scheme illustrated in the following:
-
In the figure, Iph denotes the photocurrent and Id is the dark current.
-Id is opposed to Iph
-Id derives from the Shockley equation
++This is a photovoltaic generator model based on a single diode approach with replaceable thermal models accounting for different mountings. +
++The solar cell is approximated as a simplified diode circuit following the scheme illustrated in the following: +
++
++In the figure, Iph denotes the photocurrent and Id is the dark current. +
++Id is opposed to Iph
++Id derives from the Shockley equation
-Id = -Is(e((U+IRs) ⁄ a)-1)
-that bases on the saturation current Is.
-The Shockley equation uses the modified ideality factor
+Id = Is(e((U+IRs) ⁄ a)-1) ++that is based on the saturation current Is. +
++The Shockley equation uses the modified ideality factor +
a =(Ns nI k Tcell ⁄ q).
-The modified ideality factor a results from the number of serial cells Ns, +
+The modified ideality factor a results from the number of serial cells Ns, the ideality factor nI, the Boltzman constant k, the elementary charge q,and the cell temperature Tcell. -Rs is the serial resistance that results in a voltage loss.
-The parallel resistance Rsh accounts for the leakage currents along the cell's side +Rs is the serial resistance that results in a voltage loss. +
++The parallel resistance Rsh accounts for the leakage currents along the cell's side and Ish is the resulting leakage current. The result is the I-V-curve
-I =
-Iph - Id - Ish
+I =
+Iph - Id - Ish
= Iph - Is (e((U+IRs) ⁄ a)-1) - (U+IRs) ⁄ Rsh
that bases on five unknown parameters (Iph, Is, a, Rs, and Rsh) only.
-Hence, the name 5-p approach is common.
For a definition of the parameters, see the IBPSA.BoundaryConditions.UsersGuide.
+that is based on five unknown parameters (Iph, Is, a, Rs, and Rsh) only.
+Hence, the name 5-p approach.
+
+For a definition of the parameters, see the IBPSA.BoundaryConditions.UsersGuide. +
Humada, Ali M. ; Hojabri, Mojgan ; Mekhilef, Saad ; Hamada, Hussein M.: Solar diff --git a/IBPSA/Resources/Images/Electrical/DC/Sources/single_diode_scheme.PNG b/IBPSA/Resources/Images/Electrical/DC/Sources/single_diode_scheme.png similarity index 100% rename from IBPSA/Resources/Images/Electrical/DC/Sources/single_diode_scheme.PNG rename to IBPSA/Resources/Images/Electrical/DC/Sources/single_diode_scheme.png