modelPVSimpleOriented

Simple PV model with orientation

Extends from Buildings.Electrical.Interfaces.PartialAcDcParameters (Partial model that contains basic parameters for a DC/AC conversion system), Buildings.Electrical.Interfaces.PartialPVOriented (Base model of a PV system with orientation).

Information

Model of a simple photovoltaic array.

This model takes as an input the direct and diffuse solar radiation from the weather bus. The electrical connector is an AC one phase interface.

This model computes the active power as

P=A f_act η G η_DCAC,

where A is the panel area, f_act is the fraction of the aperture area, η is the panel efficiency, G is the total solar irradiation, which is the sum of direct and diffuse irradiation, and η_DCAC is the efficiency of the conversion between DC and AC. The model takes into account the location and the orientation of the PV panel, specified by the surface tilt, latitude and azimuth.

This active power is equal to P, while the reactive power is equal to Q = P tan(acos(pf)), where pf is the power factor.

Parameters

Type	Name	Default	Description
Modelica.Units.SI.Area	A (from PartialPvBase)		Gross surface area (including area not covered with active PV cells)
Real	fAct (from PartialPvBase)	0.9	Fraction of surface area with active solar cells
Real	eta (from PartialPvBase)	0.12	Module conversion efficiency
Boolean	linearized	false	If =true, linearize the load
AC-Conversion
Real	pf (from PartialAcDcParameters)	0.9	Power factor
Real	eta_DCAC (from PartialAcDcParameters)	0.9	Efficiency of DC/AC conversion
Orientation
Modelica.Units.SI.Angle	til (from PartialPVOriented)		Surface tilt
Modelica.Units.SI.Angle	azi (from PartialPVOriented)		Surface azimuth
Nominal conditions
Modelica.Units.SI.Voltage	V_nominal (from PartialPVOriented)		Nominal voltage (V_nominal >= 0)

Connectors

Type	Name	Description
Modelica.Blocks.Interfaces.RealOutput	P (from PartialPvBase)	Generated power
Buildings.Electrical.Interfaces.Terminal	terminal (from PartialPVOriented)	Generalized terminal
BoundaryConditions.WeatherData.Bus	weaBus (from PartialPVOriented)	Weather data

Components

Type	Name	Default	Description
PartialPV	panel (from PartialPVOriented)

Revisions

March 23, 2022, by Michael Wetter:
Corrected documentation string for parameter A.
September 16, 2021, by Michael Wetter:
Removed parameter lat as this is now obtained from the weather data reader.
This is for IBPSA, #1477.
October 7, 2019, by Michael Wetter:
Corrected model to include DC/AC conversion in output P.
This is for issue 1577.
January 30, 2019, by Michael Wetter:
Added replaceable.
September 4, 2014, by Michael Wetter:
Revised model.
August 5, 2014, by Marco Bonvini:
Revised documentation.
October 31, 2013, by Marco Bonvini:
First implementation.