generic-battery-discharge-example.py

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# Copyright (c) 2023 Tokushima University
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation;
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# Author: Alberto Gallegos Ramonet <alramonet@is.tokushima-u.ac.jp>
#
 
#  Panasonic HHR650D NiMh battery (single cell)
#  Demonstrates the discharge behavior of a NIMH battery discharged with a
#  constant current of 6.5 A (1C)
 
try:
    from ns import ns
except ModuleNotFoundError:
    raise SystemExit(
        "Error: ns3 Python module not found;"
        " Python bindings may not be enabled"
        " or your PYTHONPATH might not be properly configured"
    )
 
 
def main(argv):
    """The main function in this Battery discharge example
 
    Parameters:
    argv: System parameters to use if necessary
    """
 
    ns.core.LogComponentEnable("GenericBatteryModel", ns.core.LOG_LEVEL_DEBUG)
 
    node = ns.network.Node()
    batteryHelper = ns.energy.GenericBatteryModelHelper()
    batteryModel = ns.CreateObject("GenericBatteryModel")
    devicesEnergyModel = ns.energy.SimpleDeviceEnergyModel()
 
    batteryModel.SetAttribute("FullVoltage", ns.core.DoubleValue(1.39))  # Vfull
    batteryModel.SetAttribute("MaxCapacity", ns.core.DoubleValue(7.0))  # Q
 
    batteryModel.SetAttribute("NominalVoltage", ns.core.DoubleValue(1.18))  # Vnom
    batteryModel.SetAttribute("NominalCapacity", ns.core.DoubleValue(6.25))  # QNom
 
    batteryModel.SetAttribute("ExponentialVoltage", ns.core.DoubleValue(1.28))  # Vexp
    batteryModel.SetAttribute("ExponentialCapacity", ns.core.DoubleValue(1.3))  # Qexp
 
    batteryModel.SetAttribute("InternalResistance", ns.core.DoubleValue(0.0046))  # R
    batteryModel.SetAttribute("TypicalDischargeCurrent", ns.core.DoubleValue(1.3))  # i typical
    batteryModel.SetAttribute("CutoffVoltage", ns.core.DoubleValue(1.0))  # End of charge.
 
    batteryModel.SetAttribute("BatteryType", ns.core.EnumValue(ns.NIMH_NICD))  # Battery type
 
    devicesEnergyModel.SetEnergySource(batteryModel)
    batteryModel.AppendDeviceEnergyModel(devicesEnergyModel)
    devicesEnergyModel.SetNode(node)
 
    devicesEnergyModel.SetCurrentA(6.5)
 
    ns.core.Simulator.Stop(ns.core.Seconds(3600))
    ns.core.Simulator.Run()
    ns.core.Simulator.Destroy()
 
 
if __name__ == "__main__":
    import sys
 
    main(sys.argv)