modelPVSimple

Simple PV model

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

Information

Model of a simple photovoltaic array.

The electrical connector is an AC 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.

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.

Note: This model takes as input the total solar irradiation on the panel. This has to be computed converting the incoming radiation to take tilt and azimuth into account. For a model that implements this conversion, use Buildings.Electrical.AC.OnePhase.Sources.PVSimpleOriented.

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, introduce a linearization in the load
AC-Conversion
Real	pf (from PartialAcDcParameters)	0.9	Power factor
Real	eta_DCAC (from PartialAcDcParameters)	0.9	Efficiency of DC/AC conversion
Nominal conditions
Modelica.Units.SI.Voltage	V_nominal (from PartialPV)		Nominal voltage (V_nominal >= 0)

Connectors

Type	Name	Description
Modelica.Blocks.Interfaces.RealOutput	P (from PartialPvBase)	Generated power
Modelica.Blocks.Interfaces.RealInput	G (from PartialPV)	Total solar irradiation per unit area
Buildings.Electrical.Interfaces.Terminal	terminal (from PartialPV)	Generalized terminal

Components

Type	Name	Default	Description
Buildings.Electrical.AC.OnePhase.Loads.Capacitive	load		Load model

Revisions

March 23, 2022, by Michael Wetter:
Corrected documentation string for parameter A.
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.
February 26, 2016, by Michael Wetter:
In load, set P_nominal = 0 as it is not used. This is for issue 426.
September 24, 2015 by Michael Wetter:
Removed binding of P_nominal as this parameter is disabled and assigned a value in the initial equation section. This is for issue 426.
September 4, 2014, by Michael Wetter:
Revised model.
August 5, 2014, by Marco Bonvini:
Revised documentation.