2025-01-24 20:08:52 +01:00

230 lines
8.9 KiB
Python

"""PV forecast module for PV power predictions."""
from typing import Any, ClassVar, List, Optional, Self
from pydantic import Field, computed_field, field_validator, model_validator
from akkudoktoreos.config.configabc import SettingsBaseModel
from akkudoktoreos.core.logging import get_logger
from akkudoktoreos.prediction.pvforecastimport import PVForecastImportCommonSettings
from akkudoktoreos.utils.docs import get_model_structure_from_examples
logger = get_logger(__name__)
class PVForecastPlaneSetting(SettingsBaseModel):
"""PV Forecast Plane Configuration."""
# latitude: Optional[float] = Field(default=None, description="Latitude in decimal degrees, between -90 and 90, north is positive (ISO 19115) (°)")
surface_tilt: Optional[float] = Field(
default=None,
description="Tilt angle from horizontal plane. Ignored for two-axis tracking.",
examples=[10.0, 20.0],
)
surface_azimuth: Optional[float] = Field(
default=None,
description="Orientation (azimuth angle) of the (fixed) plane. Clockwise from north (north=0, east=90, south=180, west=270).",
examples=[10.0, 20.0],
)
userhorizon: Optional[List[float]] = Field(
default=None,
description="Elevation of horizon in degrees, at equally spaced azimuth clockwise from north.",
examples=[[10.0, 20.0, 30.0], [5.0, 15.0, 25.0]],
)
peakpower: Optional[float] = Field(
default=None, description="Nominal power of PV system in kW.", examples=[5.0, 3.5]
)
pvtechchoice: Optional[str] = Field(
default="crystSi", description="PV technology. One of 'crystSi', 'CIS', 'CdTe', 'Unknown'."
)
mountingplace: Optional[str] = Field(
default="free",
description="Type of mounting for PV system. Options are 'free' for free-standing and 'building' for building-integrated.",
)
loss: Optional[float] = Field(default=14.0, description="Sum of PV system losses in percent")
trackingtype: Optional[int] = Field(
default=None,
ge=0,
le=5,
description="Type of suntracking. 0=fixed, 1=single horizontal axis aligned north-south, 2=two-axis tracking, 3=vertical axis tracking, 4=single horizontal axis aligned east-west, 5=single inclined axis aligned north-south.",
examples=[0, 1, 2, 3, 4, 5],
)
optimal_surface_tilt: Optional[bool] = Field(
default=False,
description="Calculate the optimum tilt angle. Ignored for two-axis tracking.",
examples=[False],
)
optimalangles: Optional[bool] = Field(
default=False,
description="Calculate the optimum tilt and azimuth angles. Ignored for two-axis tracking.",
examples=[False],
)
albedo: Optional[float] = Field(
default=None,
description="Proportion of the light hitting the ground that it reflects back.",
examples=[None],
)
module_model: Optional[str] = Field(
default=None, description="Model of the PV modules of this plane.", examples=[None]
)
inverter_model: Optional[str] = Field(
default=None, description="Model of the inverter of this plane.", examples=[None]
)
inverter_paco: Optional[int] = Field(
default=None, description="AC power rating of the inverter. [W]", examples=[6000, 4000]
)
modules_per_string: Optional[int] = Field(
default=None,
description="Number of the PV modules of the strings of this plane.",
examples=[20],
)
strings_per_inverter: Optional[int] = Field(
default=None,
description="Number of the strings of the inverter of this plane.",
examples=[2],
)
@model_validator(mode="after")
def validate_list_length(self) -> Self:
# Check if either attribute is set and add to active planes
if self.trackingtype == 2:
# Tilt angle from horizontal plane is ignored for two-axis tracking.
if self.surface_azimuth is None:
raise ValueError("If trackingtype is set, azimuth must be set as well.")
elif self.surface_tilt is None or self.surface_azimuth is None:
raise ValueError("surface_tilt and surface_azimuth must be set.")
return self
@field_validator("mountingplace")
def validate_mountingplace(cls, mountingplace: Optional[str]) -> Optional[str]:
if mountingplace is not None and mountingplace not in ["free", "building"]:
raise ValueError(f"Invalid mountingplace: {mountingplace}")
return mountingplace
@field_validator("pvtechchoice")
def validate_pvtechchoice(cls, pvtechchoice: Optional[str]) -> Optional[str]:
if pvtechchoice is not None and pvtechchoice not in ["crystSi", "CIS", "CdTe", "Unknown"]:
raise ValueError(f"Invalid pvtechchoice: {pvtechchoice}")
return pvtechchoice
class PVForecastCommonSettings(SettingsBaseModel):
"""PV Forecast Configuration."""
# General plane parameters
# https://pvlib-python.readthedocs.io/en/stable/_modules/pvlib/iotools/pvgis.html
# Inverter Parameters
# https://pvlib-python.readthedocs.io/en/stable/_modules/pvlib/inverter.html
provider: Optional[str] = Field(
default=None,
description="PVForecast provider id of provider to be used.",
examples=["PVForecastAkkudoktor"],
)
planes: Optional[list[PVForecastPlaneSetting]] = Field(
default=None,
description="Plane configuration.",
examples=[get_model_structure_from_examples(PVForecastPlaneSetting, True)],
)
max_planes: ClassVar[int] = 6 # Maximum number of planes that can be set
@field_validator("planes")
def validate_planes(
cls, planes: Optional[list[PVForecastPlaneSetting]]
) -> Optional[list[PVForecastPlaneSetting]]:
if planes is not None and len(planes) > cls.max_planes:
raise ValueError(f"Maximum number of supported planes: {cls.max_planes}.")
return planes
provider_settings: Optional[PVForecastImportCommonSettings] = Field(
default=None, description="Provider settings", examples=[None]
)
## Computed fields
@computed_field # type: ignore[prop-decorator]
@property
def planes_peakpower(self) -> List[float]:
"""Compute a list of the peak power per active planes."""
planes_peakpower = []
if self.planes:
for plane in self.planes:
peakpower = plane.peakpower
if peakpower is None:
# TODO calculate peak power from modules/strings
planes_peakpower.append(float(5000))
else:
planes_peakpower.append(float(peakpower))
return planes_peakpower
@computed_field # type: ignore[prop-decorator]
@property
def planes_azimuth(self) -> List[float]:
"""Compute a list of the azimuths per active planes."""
planes_azimuth = []
if self.planes:
for plane in self.planes:
azimuth = plane.surface_azimuth
if azimuth is None:
# TODO Use default
planes_azimuth.append(float(180))
else:
planes_azimuth.append(float(azimuth))
return planes_azimuth
@computed_field # type: ignore[prop-decorator]
@property
def planes_tilt(self) -> List[float]:
"""Compute a list of the tilts per active planes."""
planes_tilt = []
if self.planes:
for plane in self.planes:
tilt = plane.surface_tilt
if tilt is None:
# TODO Use default
planes_tilt.append(float(30))
else:
planes_tilt.append(float(tilt))
return planes_tilt
@computed_field # type: ignore[prop-decorator]
@property
def planes_userhorizon(self) -> Any:
"""Compute a list of the user horizon per active planes."""
planes_userhorizon = []
if self.planes:
for plane in self.planes:
userhorizon = plane.userhorizon
if userhorizon is None:
# TODO Use default
planes_userhorizon.append([float(0), float(0)])
else:
planes_userhorizon.append(userhorizon)
return planes_userhorizon
@computed_field # type: ignore[prop-decorator]
@property
def planes_inverter_paco(self) -> Any:
"""Compute a list of the maximum power rating of the inverter per active planes."""
planes_inverter_paco = []
if self.planes:
for plane in self.planes:
inverter_paco = plane.inverter_paco
if inverter_paco is None:
# TODO Use default - no clipping
planes_inverter_paco.append(25000.0)
else:
planes_inverter_paco.append(float(inverter_paco))
return planes_inverter_paco