PyChargeModel/evse_class.py at main · NatLabRockies/PyChargeModel · GitHub

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class EVSE_class():
    def __init__(self, efficiency, Prated_kW, evse_id):
        self.efficiency = efficiency
        self.Prated_kW  = Prated_kW
        self.evse_id   = evse_id

        self.ev_voltage = 0.0
        self.ev_power   = 0.0
        self.ev_soc     = 0.0
        self.ev_plugged = False
        self.state      = 'A'

        self.server_setpoint = 0.0


    def receive_from_ev(self, Vbatt, Pbatt_kW, soc, plugged, ready):
        ### receive Vbatt, Pbatt, SOC, plugged via TCP or something if there needs a connection
        self.ev_voltage = Vbatt
        self.ev_power   = Pbatt_kW
        self.ev_soc     = soc
        self.ev_plugged = plugged
        self.ev_ready   = ready

        if self.ev_plugged and self.ev_power < 0.1:
            self.state = 'B'
        if self.ev_plugged and self.ev_power >= 0.1:
            self.state = 'C'
        if not self.ev_plugged:
            self.state = 'A'


    def send_to_ev(self):
        if self.ev_ready:
            Pmax = min(self.server_setpoint, self.Prated_kW)*self.efficiency
        else:
            Pmax = 0.0

        ### send Pmax via TCP or something if there needs a connection
        return Pmax


    def receive_from_server(self, setpoint_kW):
        self.server_setpoint = setpoint_kW


    def send_to_server(self):
        Vbatt    = self.ev_voltage
        Pbatt_kW = self.ev_power
        soc      = self.ev_soc

        return [Vbatt, Pbatt_kW, soc]