modelIAM
Extends from TransiEnt.Basics.Icons.Model (Icon for models).
Information
1. Purpose of model
Calculates the incidence angle modifier as suggested by references.
2. Level of detail, physical effects considered, and physical insight
(Purely technical component without physical modeling.)
3. Limits of validity
(Purely technical component without physical modeling.)
4. Interfaces
(no remarks)
5. Nomenclature
(no remarks)
6. Governing Equations
1. value = const
2. 
3. value=linear interpolation
4. representation based on [2]
7. Remarks for Usage
(no remarks)
8. Validation
(no validation or testing necessary)
9. References
[1] P. Kovacs, "A guide to the standard EN 12975", 2012
[2] PVPerformance Modeling Collaborative,"Physical IAM Model", URL: https://pvpmc.sandia.gov/modeling-steps/1-weather-design-inputs/shading-soiling-and-reflection-losses/incident-angle-reflection-losses/physical-model-of-iam/, 2018
10. Version History
Model created by Tobias Toerber (tobias.toerber@tuhh.de), Jul 2015
Model modified by Sascha Guddusch (sascha.guddusch@tuhh.de), May 2016
Model modified by Anne Senkel (anne.senkel@tuhh.de), Mar 2017
Model modified by Lisa Andresen (andresen@tuhh.de), Apr. 2017
Model modified by Oliver Schülting (oliver.schuelting@tuhh.de), May 2018: IAM representation based on [2] added
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | kind | 1 | IAM for direct Irradiance |
| Real | constant_iam_dir | 1 | If a constant IAM is assumed |
| Real | constant_iam_diff | 1 | If a constant IAM is assumed |
| Real | constant_iam_ground | 1 | If a constant IAM is assumed |
| Real | b0 | 1 | assumption: constant b0-value for IAM=1-b0*(1/cos(theta)-1) |
| Real | iam_SRCC | {1, 1, 1, 1, 1, 1, 1, 1} | IAM for theta = 0, 10, 20, ..., 70 |
| Modelica.Units.NonSI.Angle_deg | theta | {0, 10, 20, 30, 40, 50, 60, 70} | angles of incidence |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Real | iam_dir | ||
| Real | iam_diff | ||
| Real | iam_ground | ||
| Real | b0_interpolated | ||
| IrradianceOnATiltedSurface | irradiance |