modelElectricalPV
Model for PV panels using PV-oriented cell-temperature equations
Information
This model is an adapted PV-oriented electrical submodel based on the
PVOrientedDCPower model from the MoPED library
(Verleyen et al., 2022). It is included for verification purposes.
Purpose / verification note: This submodel is used to demonstrate the bias introduced when applying PV-only cell‑temperature equations to PVT collectors. Because unglazed PVT collectors actively extract heat, their cell temperatures are typically lower than those predicted by PV-based formulations, which results in overpredicting the PV cell temperature and underpedicting the electrical ouput of the PVT collector.
References
- Verleyen, L., Hermans, L., Arroyo, J., & Helsen, L. (2022). Identifying technically feasible and effective solutions towards Positive Energy Districts (PEDs). Proceedings of the Urban Energy in a Net Zero World Conference, Glasgow, Scotland. (Source of the MoPED library electrical model).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Efficiency | module_efficiency | 0.3 | Module efficiency of the photovoltaic installation |
| Characteristics of the photovoltaic panel | |||
| Modelica.Units.SI.Irradiance | G_STC | 1000 | Irradiance at Standard Conditions (usualy 1000 W/m2) |
| Modelica.Units.SI.Power | P_STC | 370 | Power of one photovoltaic panel at Standard Conditions, usualy equal to power at Maximum Power Point (MPP) |
| Modelica.Units.SI.LinearTemperatureCoefficient | beta | -0.0037 | Temperature coefficient of the photovoltaic panel(s) |
| Modelica.Units.SI.Efficiency | eleLosFac | 0.14 | Loss factor of the photovoltaic panel(s) |
| Characteristics of the photovoltaic installation | |||
| Real | n | 5 | Number of photovoltaic panels in the photovoltaic installation |
| Modelica.Units.SI.Angle | til | 0.785 | Surface tilt of the photovoltaic installation (0°=horizontal, 90°=vertical) |
| Modelica.Units.SI.Angle | azi | 0 | Surface azimuth (0°=south, 90°=west, 180°=north, 270°=east) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Temperature | T_cell | Cell temperature | |
| Modelica.Units.SI.Temperature | T_cell_init | Initial cell temperature | |
| Modelica.Units.SI.TemperatureDifference | T_diff | Temperature difference between the cell temperature and the reference temperature | |
| Modelica.Units.SI.Temperature | T_noct_cell_adj | Adjusted nominal operating cell temperature | |
| Modelica.Units.SI.Efficiency | eff_heat_loss | Heat loss coefficient of the PV panel | |
| Modelica.Units.SI.Efficiency | eff_wind_loss | Wind loss coefficient of the PV panel | |
| Modelica.Units.SI.Velocity | v_wind | Wind speed | |
| Modelica.Units.SI.Irradiance | G | Total solar irradiance | |
| Modelica.Blocks.Interfaces.RealOutput | P | Power generated by the photovoltaic installation | |
| Modelica.Blocks.Sources.RealExpression | solarPower | Power generated by the photovoltaic installation | |
| Modelica.Blocks.Interfaces.RealInput | Gtil | Value of Real input | |
| Modelica.Blocks.Interfaces.RealInput | winSpe | Value of Real input | |
| Modelica.Blocks.Interfaces.RealInput | Tamb | Value of Real input |
Revisions
-
March 11, 2026, by Lone Meertens:
Adapted PV-oriented electrical model from the MoPED library for verification purposes only. This model is included to demonstrate the impact of using PV-based cell-temperature equations for PVT collectors. This is for #1473.