forked from Giraffie/CCGXInputController
/
Main.py
206 lines (173 loc) · 8.06 KB
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Main.py
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#!/usr/bin/env python
# Imports
import dbus
import time
import os
import sys
import datetime
# Victron Imports
sys.path.insert(1, os.path.join(os.path.dirname(__file__), './ext/velib_python'))
from vedbus import VeDbusItemImport
from vedbus import VeDbusItemExport
class CCGXController(object):
def __init__(self):
self.bus = dbus.SystemBus()
self.DbusServices = {
'AcSetpoint': {'Service': "com.victronenergy.settings",
'Path': "/Settings/CGwacs/AcPowerSetPoint",
'Value': 0},
'CCGXRelay': {'Service': "com.victronenergy.system",
'Path': "/Relay/0/State",
'Value': 0},
'L1Power': {'Service': "com.victronenergy.system",
'Path': "/Ac/Consumption/L1/Power",
'Value': 0},
'L2Power': {'Service': "com.victronenergy.system",
'Path': "/Ac/Consumption/L2/Power",
'Value': 0},
'L3Power': {'Service': "com.victronenergy.system",
'Path': "/Ac/Consumption/L3/Power",
'Value': 0},
'Soc': {'Service': "com.victronenergy.system",
'Path': "/Dc/Battery/Soc",
'Value': 0}
}
self.AbsorptionSettings = {
'DoAbsorption': True,
'WeekDay': 6,
'StartTime': datetime.time(hour=17, minute=0),
'Duration': datetime.timedelta(hours=8),
'Date': datetime.date.today(),
'EndTime': datetime.datetime.now(),
'Interval': datetime.timedelta(weeks=2),
'Active': False,
'Power': 30000
}
self.Settings = {
'BatteryCapacity': 155000,
'LowBatteryRechargeTime': 7,
'StableBatterySoc': 79,
'20%PowerSoc': 85,
'WsConSoc': 84,
'WsDisConSoc': 82,
'MinInPower': 600,
'MaxInPower': 50000,
'WeekendStableBatterySoc': 79,
'WeekendStartTime': datetime.time(hour=15, minute=0),
'SafetyDuration': datetime.timedelta(minutes=5),
'SafetyEndTime': datetime.datetime.now()
}
def absorption(self):
if self.AbsorptionSettings['DoAbsorption'] is True:
if self.AbsorptionSettings['Active'] is False:
if datetime.date.today() >= self.AbsorptionSettings['Date']:
if datetime.datetime.now().time() >= self.AbsorptionSettings['StartTime']:
if datetime.datetime.now().weekday() == self.AbsorptionSettings['WeekDay']:
self.AbsorptionSettings['Active'] = True
self.AbsorptionSettings['EndTime'] = datetime.datetime.now() + self.AbsorptionSettings['Duration']
self.AbsorptionSettings['Date'] += self.AbsorptionSettings['Interval']
self.setrelay(0)
else:
self.AbsorptionSettings['Date'] += datetime.timedelta(days=1)
else:
if datetime.datetime.now() >= self.AbsorptionSettings['EndTime']:
self.AbsorptionSettings['Active'] = False
self.setrelay(1)
def getvalues(self):
for service in self.DbusServices:
try:
self.DbusServices[service]['Value'] = VeDbusItemImport(
bus=self.bus,
serviceName=self.DbusServices[service]['Service'],
path=self.DbusServices[service]['Path'],
eventCallback=None,
createsignal=False).get_value()
# print 'New value of ', self.DbusServices[service]['Value'], 'for', service
except dbus.DBusException:
print 'Error with DBus'
try:
self.DbusServices[service]['Value'] *= 1
self.DbusServices[service]['Value'] = max(self.DbusServices[service]['Value'], 0)
except:
if service == 'L1Power' or service == 'L2Power' or service == 'L3Power':
self.DbusServices[service]['Value'] = 1000
# print 'No value on:', service
elif service == 'Soc':
self.DbusServices[service]['Value'] = self.Settings['StableBatterySoc']
# print 'No value on:', service
def setvalues(self, inputpower):
VeDbusItemImport(
bus=self.bus,
serviceName=self.DbusServices['AcSetpoint']['Service'],
path=self.DbusServices['AcSetpoint']['Path'],
eventCallback=None,
createsignal=False).set_value(inputpower)
def setrelay(self, relayvalue):
VeDbusItemImport(
bus=self.bus,
serviceName=self.DbusServices['CCGXRelay']['Service'],
path=self.DbusServices['CCGXRelay']['Path'],
eventCallback=None,
createsignal=False).set_value(relayvalue)
def run(self):
print 'Main loop started'
WsConnect = False
StableBatterySoc = self.Settings['StableBatterySoc']
self.setrelay(1)
while True:
# Get updated SOC Value
self.getvalues()
SOC = self.DbusServices['Soc']['Value']
L1Out = self.DbusServices['L1Power']['Value']
L2Out = self.DbusServices['L2Power']['Value']
L3Out = self.DbusServices['L3Power']['Value']
OutPower = L1Out + L2Out + L3Out
# Set StableBatterySoc depending on weekday
if datetime.datetime.now().weekday() >= 4:
if datetime.datetime.now().time() >= self.Settings['WeekendStartTime']:
StableBatterySoc = self.Settings['WeekendStableBatterySoc']
else:
StableBatterySoc = self.Settings['StableBatterySoc']
# Set the correct flag for WsConnect
if SOC >= self.Settings['WsConSoc']:
WsConnect = True
if SOC <= self.Settings['WsDisConSoc']:
WsConnect = False
# Set Correct Maxin Value based on if Ws is connected or not
if WsConnect is True:
MaxIn = 0.4 * OutPower + 200
else:
MaxIn = self.Settings['MaxInPower']
# Determine the correct inputpower
Powerslope = (1 - 0.2) / (self.Settings['20%PowerSoc'] - StableBatterySoc)
if SOC <= StableBatterySoc - 1:
InPower = ( 2 *(StableBatterySoc - SOC) / 100 ) * ( self.Settings['BatteryCapacity'] / self.Settings['LowBatteryRechargeTime']) + OutPower
elif SOC >= self.Settings['20%PowerSoc']:
InPower = 0.2 * OutPower + 200
else:
InPower = OutPower * (1 - (SOC - StableBatterySoc) * Powerslope) + 200
# Set the Absorption power if applicable
self.absorption()
if self.AbsorptionSettings['Active']:
InPower = OutPower + self.AbsorptionSettings['Power']
MaxIn = self.Settings['MaxInPower']
# Constrain the maximum input power
InPower = min(InPower,MaxIn)
# Safety mechanism to prevent low input power during high power use
if L1Out > 5000 or L2Out > 5000 or L3Out > 5000:
MinIn = OutPower - 4000
self.Settings['SafetyEndTime'] = datetime.datetime.now() + self.Settings['SafetyDuration']
self.setrelay(0)
else:
MinIn = self.Settings['MinInPower']
if self.Settings['SafetyEndTime'] < datetime.datetime.now():
if self.AbsorptionSettings['Active'] == False:
self.setrelay(1)
# Constrain the minimum input power
InPower = max(MinIn,InPower)
# Send the inputpower to the CCGX
self.setvalues(InPower)
time.sleep(2)
if __name__ == "__main__":
controller = CCGXController()
controller.run()