Buildings.Electrical.AC.ThreePhasesBalanced.Storage

Package with models for electrical storage with a AC three-phase balanced connector

Information

This package contains models for storage elements with an AC three-phase balanced connector.

Extends from Modelica.Icons.Package (Icon for standard packages).

Package Content

Name	Description
Battery	Simple model of a battery
Examples	Package with example models

Buildings.Electrical.AC.ThreePhasesBalanced.Storage.Battery

Simple model of a battery

Buildings.Electrical.AC.ThreePhasesBalanced.Storage.Battery

Information

Simple model of a battery.

This model takes as an input the power to be extracted from the AC line and stored in the battery (if P > 0) or to be fed into the AC line after being extracted from the battery. The actual power stored or extracted in the battery differs from P due to AC/DC conversion losses and battery charge and discharge efficiencies.

The output connector SOC is the state of charge of the battery. This model does not enforce that the state of charge is between zero and one. However, each time the state of charge crosses zero or one, a warning will be written to the simulation log file. The model also does not limit the current through the battery. The user should provide a control so that only a reasonable amount of power is exchanged, and that the state of charge remains between zero and one.

Extends from Buildings.Electrical.AC.OnePhase.Storage.Battery (Simple model of a battery).

Parameters

Type	Name	Default	Description
replaceable package PhaseSystem		OnePhase	Phase system
Efficiency	etaCha	0.9	Efficiency during charging [1]
Efficiency	etaDis	0.9	Efficiency during discharging [1]
Real	SOC_start		Initial charge
Energy	EMax		Maximum available charge [J]
Boolean	linearized	false	If =true introduce a linearization in the load
AC-Conversion
Real	pf	0.9	Power factor
Real	eta_DCAC	0.9	Efficiency of DC/AC conversion
Initialization
InitMode	initMode	Buildings.Electrical.Types.I...	Initialization mode for homotopy operator

Connectors

Type	Name	Description
input RealInput	P	Power stored in battery (if positive), or extracted from battery (if negative) [W]
output RealOutput	SOC	State of charge

Modelica definition

model Battery "Simple model of a battery" extends Buildings.Electrical.AC.OnePhase.Storage.Battery(redeclare Interfaces.Terminal_p terminal, V_nominal(start=480), redeclare Buildings.Electrical.AC.ThreePhasesBalanced.Loads.Resistive bat); end Battery;