Class BatteryStorage

java.lang.Object

neqsim.util.NamedBaseClass

neqsim.process.SimulationBaseClass

neqsim.process.equipment.ProcessEquipmentBaseClass

neqsim.process.equipment.battery.BatteryStorage

All Implemented Interfaces:

Serializable, Runnable, ProcessEquipmentInterface, SimulationInterface, NamedInterface

public class BatteryStorage
extends ProcessEquipmentBaseClass

Simple battery storage unit maintaining a state of charge.

The unit can be charged or discharged by supplying a power level and a duration. The state of charge is updated accordingly and the energy stream of the unit reflects the power usage (positive duty while charging and negative when discharging).

Author:

esol

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private double	capacity
private double	chargeEfficiency
private double	currentPower
private double	dischargeEfficiency
private static final long	serialVersionUID	Serialization version UID.
private double	stateOfCharge

Fields inherited from class ProcessEquipmentBaseClass

conditionAnalysisMessage, energyStream, hasController, isSolved, properties, report

Fields inherited from class SimulationBaseClass

calcIdentifier, calculateSteadyState, time

Fields inherited from class NamedBaseClass

name

Constructor Summary

Constructors

Constructor	Description
BatteryStorage()	Default constructor with zero capacity.
BatteryStorage(String name)	Construct a battery with a given name and zero capacity.
BatteryStorage(String name, double capacity)	Construct a battery with the given name and capacity.

Method Summary

Modifier and Type	Method	Description
void	charge(double power, double hours)	Charge the battery.
double	discharge(double power, double hours)	Discharge the battery.
double	getCapacity()	Get capacity [J].
double	getStateOfCharge()	Get state of charge [J].
double	getStateOfChargeFraction()	Get state of charge as a fraction of capacity.
void	run(UUID id)	In this method all thermodynamic and unit operations will be calculated in a steady state calculation.
void	setCapacity(double capacity)	Set capacity [J].
void	setStateOfCharge(double soc)	Set state of charge [J].

Methods inherited from class ProcessEquipmentBaseClass

copy, displayResult, equals, getConditionAnalysisMessage, getController, getEnergyStream, getEntropyProduction, getExergyChange, getMassBalance, getMassBalance, getMechanicalDesign, getMinimumFlow, getPressure, getPressure, getProperty, getReport_json, getResultTable, getSpecification, getTemperature, getTemperature, getThermoSystem, hashCode, initMechanicalDesign, isActive, isActive, isSetEnergyStream, reportResults, run_step, runConditionAnalysis, setController, setEnergyStream, setEnergyStream, setFlowValveController, setMinimumFlow, setPressure, setRegulatorOutSignal, setSpecification, setTemperature, solved, toJson, toJson

Methods inherited from class SimulationBaseClass

getCalculateSteadyState, getCalculationIdentifier, getTime, increaseTime, isRunInSteps, setCalculateSteadyState, setCalculationIdentifier, setRunInSteps, setTime

Methods inherited from class NamedBaseClass

getName, getTagName, setName, setTagName

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface NamedInterface

getName, getTagName, setName, setTagName

Methods inherited from interface ProcessEquipmentInterface

getCapacityDuty, getCapacityMax, getExergyChange, getFluid, getRestCapacity, needRecalculation, validateSetup

Methods inherited from interface SimulationInterface

getCalculateSteadyState, getCalculationIdentifier, getTime, increaseTime, isRunInSteps, run, run_step, runTransient, runTransient, setCalculateSteadyState, setCalculationIdentifier, setRunInSteps, setTime

Field Details

serialVersionUID

private static final long serialVersionUID

Serialization version UID.

See Also:

• Constant Field Values

capacity

private double capacity

stateOfCharge

private double stateOfCharge

chargeEfficiency

private double chargeEfficiency

dischargeEfficiency

private double dischargeEfficiency

currentPower

private double currentPower

Constructor Details

BatteryStorage

public BatteryStorage(String name,
 double capacity)

Construct a battery with the given name and capacity.

Parameters:

name - name of the unit

capacity - maximum energy capacity [J]

BatteryStorage

public BatteryStorage()

Default constructor with zero capacity.

BatteryStorage

public BatteryStorage(String name)

Construct a battery with a given name and zero capacity.

Parameters:

name - name of the unit

Method Details

charge

public void charge(double power,
 double hours)

Charge the battery.

Parameters:

power - charging power [W]

hours - duration of charging [h]

discharge

public double discharge(double power,
 double hours)

Discharge the battery.

Parameters:

power - requested power [W]

hours - duration of discharge [h]

Returns:

actual delivered power [W]

getStateOfCharge

public double getStateOfCharge()

Get state of charge [J].

Returns:

current stored energy

setStateOfCharge

public void setStateOfCharge(double soc)

Set state of charge [J].

Parameters:

soc - stored energy

getCapacity

public double getCapacity()

Get capacity [J].

Returns:

maximum storage capacity

setCapacity

public void setCapacity(double capacity)

Set capacity [J].

Parameters:

capacity - maximum storage capacity

getStateOfChargeFraction

public double getStateOfChargeFraction()

Get state of charge as a fraction of capacity.

Returns:

state of charge [0-1]

run

public void run(UUID id)

In this method all thermodynamic and unit operations will be calculated in a steady state calculation.

Parameters:

id - UUID