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Sungrow Speichersteuerung #2231

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Merged
LKuemmel merged 6 commits into from
Apr 7, 2025
Merged

Sungrow Speichersteuerung #2231

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89becb4
Add batcontrol for set_power_limit
seaspotter Feb 23, 2025
d177079
fixed last_mode
seaspotter Feb 23, 2025
25f60e0
power_value has to be integer
seaspotter Feb 23, 2025
d60827f
Fixed Flake8
seaspotter Mar 5, 2025
85c0ef9
removed last_mode and read register instead
seaspotter Mar 7, 2025
2360cfd
Added last_mode again and improve logging
seaspotter Mar 17, 2025
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32 changes: 31 additions & 1 deletion packages/modules/devices/sungrow/sungrow/bat.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
#!/usr/bin/env python3
from typing import Dict, Union
import logging
from typing import Dict, Union, Optional

from dataclass_utils import dataclass_from_dict
from modules.common import modbus
Expand All @@ -14,6 +15,8 @@
from modules.devices.sungrow.sungrow.version import Version
from modules.devices.sungrow.sungrow.firmware import Firmware

log = logging.getLogger(__name__)


class SungrowBat(AbstractBat):
def __init__(self,
Expand All @@ -26,6 +29,7 @@ def __init__(self,
self.sim_counter = SimCounter(self.device_config.id, self.component_config.id, prefix="speicher")
self.store = get_bat_value_store(self.component_config.id)
self.fault_state = FaultState(ComponentInfo.from_component_config(self.component_config))
self.last_mode = 'Undefined'

def update(self) -> None:
unit = self.device_config.configuration.modbus_id
Expand Down Expand Up @@ -64,5 +68,31 @@ def update(self) -> None:
)
self.store.set(bat_state)

def set_power_limit(self, power_limit: Optional[int]) -> None:
unit = self.device_config.configuration.modbus_id
log.debug(f'last_mode: {self.last_mode}')

if power_limit is None:
log.debug("Keine Batteriesteuerung, Selbstregelung durch Wechselrichter")
if self.last_mode is not None:
self.__tcp_client.write_registers(13049, [0], data_type=ModbusDataType.UINT_16, unit=unit)
self.__tcp_client.write_registers(13050, [0xCC], data_type=ModbusDataType.UINT_16, unit=unit)
self.last_mode = None
elif power_limit == 0:
log.debug("Aktive Batteriesteuerung. Batterie wird auf Stop gesetzt und nicht entladen")
if self.last_mode != 'stop':
self.__tcp_client.write_registers(13049, [2], data_type=ModbusDataType.UINT_16, unit=unit)
self.__tcp_client.write_registers(13050, [0xCC], data_type=ModbusDataType.UINT_16, unit=unit)
self.last_mode = 'stop'
elif power_limit > 0:
log.debug(f"Aktive Batteriesteuerung. Batterie wird mit {power_limit} W entladen für den Hausverbrauch")
if self.last_mode != 'discharge':
self.__tcp_client.write_registers(13049, [2], data_type=ModbusDataType.UINT_16, unit=unit)
self.__tcp_client.write_registers(13050, [0xBB], data_type=ModbusDataType.UINT_16, unit=unit)
self.last_mode = 'discharge'
# Die maximale Entladeleistung begrenzen auf 5000W, maximaler Wertebereich Modbusregister.
power_value = int(min(power_limit, 5000))
self.__tcp_client.write_registers(13051, [power_value], data_type=ModbusDataType.UINT_16, unit=unit)


component_descriptor = ComponentDescriptor(configuration_factory=SungrowBatSetup)