diff options
Diffstat (limited to 'src/home/inverter/monitor.py')
| -rw-r--r-- | src/home/inverter/monitor.py | 499 |
1 files changed, 0 insertions, 499 deletions
diff --git a/src/home/inverter/monitor.py b/src/home/inverter/monitor.py deleted file mode 100644 index 86f75ac..0000000 --- a/src/home/inverter/monitor.py +++ /dev/null @@ -1,499 +0,0 @@ -import logging -import time - -from .types import * -from threading import Thread -from typing import Callable, Optional -from .inverter_wrapper import wrapper_instance as inverter -from inverterd import InverterError -from ..util import Stopwatch, StopwatchError -from ..config import config - -logger = logging.getLogger(__name__) - - -def _pd_from_string(pd: str) -> BatteryPowerDirection: - if pd == 'Discharge': - return BatteryPowerDirection.DISCHARGING - elif pd == 'Charge': - return BatteryPowerDirection.CHARGING - elif pd == 'Do nothing': - return BatteryPowerDirection.DO_NOTHING - else: - raise ValueError(f'invalid power direction: {pd}') - - -class MonitorConfig: - def __getattr__(self, item): - return config['monitor'][item] - - -cfg = MonitorConfig() - - -""" -TODO: -- поддержать возможность ручного (через бота) переключения тока заряда вверх и вниз -- поддержать возможность бесшовного перезапуска бота, когда монитор понимает, что зарядка уже идет, и он - не запускает программу с начала, а продолжает с уже существующей позиции. Уведомления при этом можно не - присылать совсем, либо прислать какое-то одно приложение, в духе "программа была перезапущена" -""" - - -class InverterMonitor(Thread): - charging_event_handler: Optional[Callable] - battery_event_handler: Optional[Callable] - util_event_handler: Optional[Callable] - error_handler: Optional[Callable] - osp_change_cb: Optional[Callable] - osp: Optional[OutputSourcePriority] - - def __init__(self): - super().__init__() - self.setName('InverterMonitor') - - self.interrupted = False - self.min_allowed_current = 0 - self.ac_mode = None - self.osp = None - - # Event handlers for the bot. - self.charging_event_handler = None - self.battery_event_handler = None - self.util_event_handler = None - self.error_handler = None - self.osp_change_cb = None - - # Currents list, defined in the bot config. - self.currents = cfg.gen_currents - self.currents.sort() - - # We start charging at lowest possible current, then increase it once per minute (or so) to the maximum level. - # This is done so that the load on the generator increases smoothly, not abruptly. Generator will thank us. - self.current_change_direction = CurrentChangeDirection.UP - self.next_current_enter_time = 0 - self.active_current_idx = -1 - - self.battery_state = BatteryState.NORMAL - self.charging_state = ChargingState.NOT_CHARGING - - # 'Mostly-charged' means that we've already lowered the charging current to the level - # at which batteries are charging pretty slow. So instead of burning gasoline and shaking the air, - # we can just turn the generator off at this point. - self.mostly_charged = False - - # The stopwatch is used to measure how long does the battery voltage exceeds the float voltage level. - # We don't want to damage our batteries, right? - self.floating_stopwatch = Stopwatch() - - # State variables for utilities charging program - self.util_ac_present = None - self.util_pd = None - self.util_solar = None - - @property - def active_current(self) -> Optional[int]: - try: - if self.active_current_idx < 0: - return None - return self.currents[self.active_current_idx] - except IndexError: - return None - - def run(self): - # Check allowed currents and validate the config. - allowed_currents = list(inverter.exec('get-allowed-ac-charge-currents')['data']) - allowed_currents.sort() - - for a in self.currents: - if a not in allowed_currents: - raise ValueError(f'invalid value {a} in gen_currents list') - - self.min_allowed_current = min(allowed_currents) - - # Reading rated configuration - rated = inverter.exec('get-rated')['data'] - self.osp = OutputSourcePriority.from_text(rated['output_source_priority']) - - # Read data and run implemented programs every 2 seconds. - while not self.interrupted: - try: - response = inverter.exec('get-status') - if response['result'] != 'ok': - logger.error('get-status failed:', response) - else: - gs = response['data'] - - ac = gs['grid_voltage']['value'] > 0 or gs['grid_freq']['value'] > 0 - solar = gs['pv1_input_voltage']['value'] > 0 or gs['pv2_input_voltage']['value'] > 0 - solar_input = gs['pv1_input_power']['value'] - v = float(gs['battery_voltage']['value']) - load_watts = int(gs['ac_output_active_power']['value']) - pd = _pd_from_string(gs['battery_power_direction']) - - logger.debug(f'got status: ac={ac}, solar={solar}, v={v}, pd={pd}') - - if self.ac_mode == ACMode.GENERATOR: - self.gen_charging_program(ac, solar, v, pd) - - elif self.ac_mode == ACMode.UTILITIES: - self.utilities_monitoring_program(ac, solar, v, load_watts, solar_input, pd) - - if not ac or pd != BatteryPowerDirection.CHARGING: - # if AC is disconnected or not charging, run the low voltage checking program - self.low_voltage_program(v, load_watts) - - elif self.battery_state != BatteryState.NORMAL: - # AC is connected and the battery is charging, assume battery level is normal - self.battery_state = BatteryState.NORMAL - - except InverterError as e: - logger.exception(e) - - time.sleep(2) - - def utilities_monitoring_program(self, - ac: bool, # whether AC is connected - solar: bool, # whether MPPT is active - v: float, # battery voltage - load_watts: int, # load, wh - solar_input: int, # input from solar panels, wh - pd: BatteryPowerDirection # current power direction - ): - pd_event_send = False - if self.util_solar is None or solar != self.util_solar: - self.util_solar = solar - if solar and self.util_ac_present and self.util_pd == BatteryPowerDirection.CHARGING: - self.charging_event_handler(ChargingEvent.UTIL_CHARGING_STOPPED_SOLAR) - pd_event_send = True - - if solar: - if v <= 48 and self.osp == OutputSourcePriority.SolarBatteryUtility: - self.osp_change_cb(OutputSourcePriority.SolarUtilityBattery, solar_input=solar_input, v=v) - self.osp = OutputSourcePriority.SolarUtilityBattery - - if self.osp == OutputSourcePriority.SolarUtilityBattery and solar_input >= 900: - self.osp_change_cb(OutputSourcePriority.SolarBatteryUtility, solar_input=solar_input, v=v) - self.osp = OutputSourcePriority.SolarBatteryUtility - - if self.util_ac_present is None or ac != self.util_ac_present: - self.util_event_handler(ACPresentEvent.CONNECTED if ac else ACPresentEvent.DISCONNECTED) - self.util_ac_present = ac - - if self.util_pd is None or self.util_pd != pd: - self.util_pd = pd - if not pd_event_send and not solar: - if pd == BatteryPowerDirection.CHARGING: - self.charging_event_handler(ChargingEvent.UTIL_CHARGING_STARTED) - - elif pd == BatteryPowerDirection.DISCHARGING: - self.charging_event_handler(ChargingEvent.UTIL_CHARGING_STOPPED) - - def gen_charging_program(self, - ac: bool, # whether AC is connected - solar: bool, # whether MPPT is active - v: float, # current battery voltage - pd: BatteryPowerDirection # current power direction - ): - if self.charging_state == ChargingState.NOT_CHARGING: - if ac and solar: - # Not charging because MPPT is active (solar line is connected). - # Notify users about it and change the current state. - self.charging_state = ChargingState.AC_BUT_SOLAR - self.charging_event_handler(ChargingEvent.AC_CHARGING_UNAVAILABLE_BECAUSE_SOLAR) - logger.info('entering AC_BUT_SOLAR state') - elif ac: - # Not charging, but AC is connected and ready to use. - # Start the charging program. - self.gen_start(pd) - - elif self.charging_state == ChargingState.AC_BUT_SOLAR: - if not ac: - # AC charger has been disconnected. Since the state is AC_BUT_SOLAR, - # charging probably never even started. Stop the charging program. - self.gen_stop(ChargingState.NOT_CHARGING) - elif not solar: - # MPPT has been disconnected, and, since AC is still connected, we can - # try to start the charging program. - self.gen_start(pd) - - elif self.charging_state in (ChargingState.AC_OK, ChargingState.AC_WAITING): - if not ac: - # Charging was in progress, but AC has been suddenly disconnected. - # Sad, but what can we do? Stop the charging program and return. - self.gen_stop(ChargingState.NOT_CHARGING) - return - - if solar: - # Charging was in progress, but MPPT has been detected. Inverter doesn't charge - # batteries from AC when MPPT is active, so we have to pause our program. - self.charging_state = ChargingState.AC_BUT_SOLAR - self.charging_event_handler(ChargingEvent.AC_CHARGING_UNAVAILABLE_BECAUSE_SOLAR) - try: - self.floating_stopwatch.pause() - except StopwatchError: - msg = 'gen_charging_program: floating_stopwatch.pause() failed at (1)' - logger.warning(msg) - # self.error_handler(msg) - logger.info('solar power connected during charging, entering AC_BUT_SOLAR state') - return - - # No surprises at this point, just check the values and make decisions based on them. - # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # We've reached the 'mostly-charged' point, the voltage level is not float, - # but inverter decided to stop charging (or somebody used a kettle, lol). - # Anyway, assume that charging is complete, stop the program, notify users and return. - if self.mostly_charged and v > (cfg.gen_floating_v - 1) and pd != BatteryPowerDirection.CHARGING: - self.gen_stop(ChargingState.AC_DONE) - return - - # Monitor inverter power direction and notify users when it changes. - state = ChargingState.AC_OK if pd == BatteryPowerDirection.CHARGING else ChargingState.AC_WAITING - if state != self.charging_state: - self.charging_state = state - - evt = ChargingEvent.AC_CHARGING_STARTED if state == ChargingState.AC_OK else ChargingEvent.AC_NOT_CHARGING - self.charging_event_handler(evt) - - if self.floating_stopwatch.get_elapsed_time() >= cfg.gen_floating_time_max: - # We've been at a bulk voltage level too long, so we have to stop charging. - # Set the minimum current possible. - - if self.current_change_direction == CurrentChangeDirection.UP: - # This shouldn't happen, obviously an error. - msg = 'gen_charging_program:' - msg += ' been at bulk voltage level too long, but current change direction is still \'up\'!' - msg += ' This is obviously an error, please fix it' - logger.warning(msg) - self.error_handler(msg) - - self.gen_next_current(current=self.min_allowed_current) - - elif self.active_current is not None: - # If voltage is greater than float voltage, keep the stopwatch ticking - if v > cfg.gen_floating_v and self.floating_stopwatch.is_paused(): - try: - self.floating_stopwatch.go() - except StopwatchError: - msg = 'gen_charging_program: floating_stopwatch.go() failed at (2)' - logger.warning(msg) - self.error_handler(msg) - # Otherwise, pause it - elif v <= cfg.gen_floating_v and not self.floating_stopwatch.is_paused(): - try: - self.floating_stopwatch.pause() - except StopwatchError: - msg = 'gen_charging_program: floating_stopwatch.pause() failed at (3)' - logger.warning(msg) - self.error_handler(msg) - - # Charging current monitoring - if self.current_change_direction == CurrentChangeDirection.UP: - # Generator is warming up in this code path - - if self.next_current_enter_time != 0 and pd != BatteryPowerDirection.CHARGING: - # Generator was warming up and charging, but stopped (pd has changed). - # Resetting to the minimum possible current - logger.info(f'gen_charging_program (warming path): was charging but power direction suddeny changed. resetting to minimum current') - self.next_current_enter_time = 0 - self.gen_next_current(current=self.min_allowed_current) - - elif self.next_current_enter_time == 0 and pd == BatteryPowerDirection.CHARGING: - self.next_current_enter_time = time.time() + cfg.gen_raise_intervals[self.active_current_idx] - logger.info(f'gen_charging_program (warming path): set next_current_enter_time to {self.next_current_enter_time}') - - elif self.next_current_enter_time != 0 and time.time() >= self.next_current_enter_time: - logger.info('gen_charging_program (warming path): hit next_current_enter_time, calling gen_next_current()') - self.gen_next_current() - else: - # Gradually lower the current level, based on how close - # battery voltage has come to the bulk level. - if self.active_current >= 30: - upper_bound = cfg.gen_cur30_v_limit - elif self.active_current == 20: - upper_bound = cfg.gen_cur20_v_limit - else: - upper_bound = cfg.gen_cur10_v_limit - - # Voltage is high enough already and it's close to bulk level; we hit the upper bound, - # so let's lower the current - if v >= upper_bound: - self.gen_next_current() - - elif self.charging_state == ChargingState.AC_DONE: - # We've already finished charging, but AC was connected. Not that it's disconnected, - # set the appropriate state and notify users. - if not ac: - self.gen_stop(ChargingState.NOT_CHARGING) - - def gen_start(self, pd: BatteryPowerDirection): - if pd == BatteryPowerDirection.CHARGING: - self.charging_state = ChargingState.AC_OK - self.charging_event_handler(ChargingEvent.AC_CHARGING_STARTED) - logger.info('AC line connected and charging, entering AC_OK state') - - # Continue the stopwatch, if needed - try: - self.floating_stopwatch.go() - except StopwatchError: - msg = 'floating_stopwatch.go() failed at ac_charging_start(), AC_OK path' - logger.warning(msg) - self.error_handler(msg) - else: - self.charging_state = ChargingState.AC_WAITING - self.charging_event_handler(ChargingEvent.AC_NOT_CHARGING) - logger.info('AC line connected but not charging yet, entering AC_WAITING state') - - # Pause the stopwatch, if needed - try: - if not self.floating_stopwatch.is_paused(): - self.floating_stopwatch.pause() - except StopwatchError: - msg = 'floating_stopwatch.pause() failed at ac_charging_start(), AC_WAITING path' - logger.warning(msg) - self.error_handler(msg) - - # idx == -1 means haven't started our program yet. - if self.active_current_idx == -1: - self.gen_next_current() - # self.set_hw_charging_current(self.min_allowed_current) - - def gen_stop(self, reason: ChargingState): - self.charging_state = reason - - if reason == ChargingState.AC_DONE: - event = ChargingEvent.AC_CHARGING_FINISHED - elif reason == ChargingState.NOT_CHARGING: - event = ChargingEvent.AC_DISCONNECTED - else: - raise ValueError(f'ac_charging_stop: unexpected reason {reason}') - - logger.info(f'charging is finished, entering {reason} state') - self.charging_event_handler(event) - - self.next_current_enter_time = 0 - self.mostly_charged = False - self.active_current_idx = -1 - self.floating_stopwatch.reset() - self.current_change_direction = CurrentChangeDirection.UP - - self.set_hw_charging_current(self.min_allowed_current) - - def gen_next_current(self, current=None): - if current is None: - try: - current = self._next_current() - logger.debug(f'gen_next_current: ready to change charging current to {current} A') - except IndexError: - logger.debug('gen_next_current: was going to change charging current, but no currents left; finishing charging program') - self.gen_stop(ChargingState.AC_DONE) - return - - else: - try: - idx = self.currents.index(current) - except ValueError: - msg = f'gen_next_current: got current={current} but it\'s not in the currents list' - logger.error(msg) - self.error_handler(msg) - return - self.active_current_idx = idx - - if self.current_change_direction == CurrentChangeDirection.DOWN: - if current == self.currents[0]: - self.mostly_charged = True - self.gen_stop(ChargingState.AC_DONE) - - elif current == self.currents[1] and not self.mostly_charged: - self.mostly_charged = True - self.charging_event_handler(ChargingEvent.AC_MOSTLY_CHARGED) - - self.set_hw_charging_current(current) - - def set_hw_charging_current(self, current: int): - try: - response = inverter.exec('set-max-ac-charge-current', (0, current)) - if response['result'] != 'ok': - logger.error(f'failed to change AC charging current to {current} A') - raise InverterError('set-max-ac-charge-current: inverterd reported error') - else: - self.charging_event_handler(ChargingEvent.AC_CURRENT_CHANGED, current=current) - logger.info(f'changed AC charging current to {current} A') - except InverterError as e: - self.error_handler(f'failed to set charging current to {current} A (caught InverterError)') - logger.exception(e) - - def _next_current(self): - if self.current_change_direction == CurrentChangeDirection.UP: - self.active_current_idx += 1 - if self.active_current_idx == len(self.currents)-1: - logger.info('_next_current: charging current power direction to DOWN') - self.current_change_direction = CurrentChangeDirection.DOWN - self.next_current_enter_time = 0 - else: - if self.active_current_idx == 0: - raise IndexError('can\'t go lower') - self.active_current_idx -= 1 - - logger.info(f'_next_current: active_current_idx set to {self.active_current_idx}, returning current of {self.currents[self.active_current_idx]} A') - return self.currents[self.active_current_idx] - - def low_voltage_program(self, v: float, load_watts: int): - crit_level = cfg.vcrit - low_level = cfg.vlow - - if v <= crit_level: - state = BatteryState.CRITICAL - elif v <= low_level: - state = BatteryState.LOW - else: - state = BatteryState.NORMAL - - if state != self.battery_state: - self.battery_state = state - self.battery_event_handler(state, v, load_watts) - - def set_charging_event_handler(self, handler: Callable): - self.charging_event_handler = handler - - def set_battery_event_handler(self, handler: Callable): - self.battery_event_handler = handler - - def set_util_event_handler(self, handler: Callable): - self.util_event_handler = handler - - def set_error_handler(self, handler: Callable): - self.error_handler = handler - - def set_osp_need_change_callback(self, cb: Callable): - self.osp_change_cb = cb - - def set_ac_mode(self, mode: ACMode): - self.ac_mode = mode - - def notify_osp(self, osp: OutputSourcePriority): - self.osp = osp - - def stop(self): - self.interrupted = True - - def dump_status(self) -> dict: - return { - 'interrupted': self.interrupted, - 'currents': self.currents, - 'active_current': self.active_current, - 'current_change_direction': self.current_change_direction.name, - 'battery_state': self.battery_state.name, - 'charging_state': self.charging_state.name, - 'mostly_charged': self.mostly_charged, - 'floating_stopwatch_paused': self.floating_stopwatch.is_paused(), - 'floating_stopwatch_elapsed': self.floating_stopwatch.get_elapsed_time(), - 'time_now': time.time(), - 'next_current_enter_time': self.next_current_enter_time, - 'ac_mode': self.ac_mode, - 'osp': self.osp, - 'util_ac_present': self.util_ac_present, - 'util_pd': self.util_pd.name, - 'util_solar': self.util_solar - } |