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

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## 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

### Information

Simple model of a battery.

This model takes as an input the power to be stored in the battery (if P > 0) or to be extracted from the battery. This model takes into account the efficiency of the conversion between DC and AC ηDCAC.

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
Real | etaCha | 0.9 | Efficiency during charging [1]
Real | 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;