org.powertac.customer.model

Class LiftTruck

java.lang.Object

org.powertac.customer.AbstractCustomer

org.powertac.customer.model.LiftTruck

All Implemented Interfaces:

CustomerModelAccessor

@Domain
 @ConfigurableInstance
public class LiftTruck
extends AbstractCustomer
implements CustomerModelAccessor

Models the complement of lift trucks in a warehouse. There may be multiple trucks, some number of battery packs, and a daily/weekly work schedule. Since the lead-acid batteries in most lift trucks have a limited number of charge/discharge cycles, we do not assume the ability to discharge batteries into the grid to provide balancing capacity. However, the charging rate is variable, and balancing capacity can be provided by adjusting the rate. Batteries and battery chargers are not modeled directly; instead, we simply keep track of the overall battery capacity and how it changes when shifts start and end, and when chargers run. Instances are created using the configureInstances() method. In addition to simple parameters, configuration can specify a shift schedule and the number and initial state-of-charge of battery packs. The work schedule is specified with a list of strings called weeklySchedule that lays out blocks of shifts. Each block is of the form
"block", d1, d2, ..., "shift" start, duration, ntrucks, "shift", ...
where d1, d2, etc. are integers giving the days of the week covered by the block, with Sunday=0; start is an integer hour, duration is an integer number of hours, and ntrucks is the number of trucks that will be active during the shift.

Author:

John Collins

Field Summary

Fields inherited from class org.powertac.customer.AbstractCustomer

allCustomerInfos, customerInfos, name, rs1, service

Constructor Summary

Constructors

Constructor and Description
LiftTruck() Default constructor, requires manual setting of name
LiftTruck(String name) Standard constructor for named configurable type

Method Summary

Modifier and Type	Method and Description
void	addEnergyCharging(double kwh)
void	addEnergyInUse(double kwh)
void	evaluateTariffs(List<Tariff> tariffs)
double	getBatteryCapacity()
double	getBrokerSwitchFactor(boolean isSuperseding)
double	getCapacityInUse()
CapacityProfile	getCapacityProfile(Tariff tariff)
double	getChargeEfficiency()
CustomerInfo	getCustomerInfo()
double	getEnergyCharging()
double	getEnergyInUse()
double	getInertiaSample()
double	getMaxChargeKW()
int	getMinPlanningHorizon()
String	getName()
int	getNBatteries()
int	getNChargers()
int	getPlanningHorizon()
List<String>	getShiftData()
double	getShiftingInconvenienceFactor(Tariff tariff)
double	getTariffChoiceSample()
double	getTruckKW()
double	getTruckStd()
void	initialize() Initialization must provide accessor to Customer instance and time.
void	setBatteryCapacity(double value)
void	setCapacityInUse(double kwh) Updates the total capacity of in-use batteries
void	setChargeEfficiency(double value)
void	setEnergyCharging(double kwh) Updates the energy content of offline batteries
void	setEnergyInUse(double kwh) Updates the energy content of in-use batteries
void	setMaxChargeKW(double value)
void	setMinPlanningHorizon(int horizon)
void	setName(String name)
void	setNBatteries(int value)
void	setNChargers(int value)
void	setPlanningHorizon(int horizon)
void	setShiftData(List<String> data) Converts a list of Strings to a sorted list of Shifts.
void	setTruckKW(double value)
void	setTruckStd(double stdDev)
void	step()

Methods inherited from class org.powertac.customer.AbstractCustomer

addCustomerInfo, changeSubscription, getCurrentSubscriptions, getCurrentSubscriptions, getCustId, getCustomerInfo, getCustomerInfoList, getCustomerInfos, getId, getPopulation, lastSunday, nextStartOfDay, saveBootstrapState, setServiceAccessor, setTariffMarket, startOfDay, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LiftTruck

public LiftTruck()

Default constructor, requires manual setting of name

LiftTruck

public LiftTruck(String name)

Standard constructor for named configurable type

Method Detail

initialize

public void initialize()

Initialization must provide accessor to Customer instance and time. We assume configuration has already happened. We also start with no active trucks, and the weakest batteries on availableChargers. Trucks will not be active (in bootstrap mode) until the first shift change.

Overrides:

initialize in class AbstractCustomer

getCustomerInfo

public CustomerInfo getCustomerInfo()

Specified by:

getCustomerInfo in interface CustomerModelAccessor

step

public void step()

Specified by:

step in class AbstractCustomer

getName

public String getName()

Overrides:

getName in class AbstractCustomer

setName

public void setName(String name)

Overrides:

setName in class AbstractCustomer

setTruckKW

@ConfigurableValue(valueType="Double",
                   description="mean power usage when truck is in use")
 @StateChange
public void setTruckKW(double value)

getTruckKW

public double getTruckKW()

setTruckStd

@ConfigurableValue(valueType="Double",
                   description="Std dev of truck power usage")
 @StateChange
public void setTruckStd(double stdDev)

getTruckStd

public double getTruckStd()

setShiftData

@ConfigurableValue(valueType="List",
                   description="shift spec [block, shift, ..., block, shift, ...]")
public void setShiftData(List<String> data)

Converts a list of Strings to a sorted list of Shifts. Entries in the list represent pairs of (start, duration) values.

getShiftData

public List<String> getShiftData()

setBatteryCapacity

@ConfigurableValue(valueType="Double",
                   description="size of battery pack in kWh")
 @StateChange
public void setBatteryCapacity(double value)

getBatteryCapacity

public double getBatteryCapacity()

setNBatteries

@ConfigurableValue(valueType="Integer",
                   description="total number of battery packs")
 @StateChange
public void setNBatteries(int value)

getNBatteries

public int getNBatteries()

setNChargers

@ConfigurableValue(valueType="Integer",
                   description="number of battery chargers")
 @StateChange
public void setNChargers(int value)

getNChargers

public int getNChargers()

setMaxChargeKW

@ConfigurableValue(valueType="Double",
                   description="maximum charge rate of one truck\'s battery pack")
 @StateChange
public void setMaxChargeKW(double value)

getMaxChargeKW

public double getMaxChargeKW()

setChargeEfficiency

@ConfigurableValue(valueType="Double",
                   description="ratio of charge energy to battery energy")
 @StateChange
public void setChargeEfficiency(double value)

getChargeEfficiency

public double getChargeEfficiency()

setPlanningHorizon

@ConfigurableValue(valueType="Integer",
                   description="planning horizon in timeslots - should be at least 48")
 @StateChange
public void setPlanningHorizon(int horizon)

getPlanningHorizon

public int getPlanningHorizon()

setMinPlanningHorizon

@ConfigurableValue(valueType="Integer",
                   description="minimum useful horizon of existing plan")
 @StateChange
public void setMinPlanningHorizon(int horizon)

getMinPlanningHorizon

public int getMinPlanningHorizon()

setEnergyCharging

@StateChange
public void setEnergyCharging(double kwh)

Updates the energy content of offline batteries

getEnergyCharging

public double getEnergyCharging()

addEnergyCharging

public void addEnergyCharging(double kwh)

setEnergyInUse

@StateChange
public void setEnergyInUse(double kwh)

Updates the energy content of in-use batteries

getEnergyInUse

public double getEnergyInUse()

addEnergyInUse

public void addEnergyInUse(double kwh)

setCapacityInUse

@StateChange
public void setCapacityInUse(double kwh)

Updates the total capacity of in-use batteries

getCapacityInUse

public double getCapacityInUse()

getCapacityProfile

public CapacityProfile getCapacityProfile(Tariff tariff)

Specified by:

getCapacityProfile in interface CustomerModelAccessor

getBrokerSwitchFactor

public double getBrokerSwitchFactor(boolean isSuperseding)

Specified by:

getBrokerSwitchFactor in interface CustomerModelAccessor

getTariffChoiceSample

public double getTariffChoiceSample()

Specified by:

getTariffChoiceSample in interface CustomerModelAccessor

getInertiaSample

public double getInertiaSample()

Specified by:

getInertiaSample in interface CustomerModelAccessor

evaluateTariffs

public void evaluateTariffs(List<Tariff> tariffs)

Specified by:

evaluateTariffs in class AbstractCustomer

getShiftingInconvenienceFactor

public double getShiftingInconvenienceFactor(Tariff tariff)

Specified by:

getShiftingInconvenienceFactor in interface CustomerModelAccessor