def opposite_ends(self):
"""Shortcut for finding the opposite ends for a list of PowerTransformerEnd or Terminals"""
if self.has_type("PowerTransformerEnd"):
end_numbers = {a.end_number for a in self.data}
if end_numbers != {1} and end_numbers != {2}:
raise ValueError(
f"Can't get opposite end for list with end number(s) {end_numbers}, should be either all 1 or all 2"
)
opposite_end_number = 1 if list(end_numbers)[0] == 2 else 2
return self.power_transformers().power_transformer_ends(
end_number=opposite_end_number)
if self.has_type("Terminal"):
seq_numbers = {a.sequence_number for a in self.data}
if seq_numbers != {1} and seq_numbers != {2}:
raise ValueError(
f"Can't get opposite end for list with sequence number(s) {seq_numbers}, should be either all 1 or all 2"
)
opposite_seq_number = 1 if list(seq_numbers)[0] == 2 else 2
al = self.relationship_targets(power_type="ACLineSegment",
relationship_type="connectsTo")
if not al:
pte = self.relationship_targets(
power_type="PowerTransformerEnd",
relationship_type="connectsTo")
return pte.opposite_ends().terminals(
sequence_number=opposite_seq_number)
return al.terminals(sequence_number=opposite_seq_number)
else:
raise WrongPowerTypeError(
f"Can't get opposite ends for a list of {self.type}")
def generating_units(
self,
power_type: Optional[Union[str,
List[str]]] = None) -> "PowerAssetList":
"""Shortcut for finding the associated GeneratingUnit for a list of Substations
Args:
power_type: type of generating unit, default is ["HydroGeneratingUnit","WindGeneratingUnit","ThermalGeneratingUnit"] """
if power_type is None:
power_type = [
"HydroGeneratingUnit", "WindGeneratingUnit",
"ThermalGeneratingUnit"
]
if isinstance(power_type, str):
power_type = [power_type]
if self.has_type("Substation"):
return PowerAssetList(
sum([self.relationship_sources(pt) for pt in power_type], []),
cognite_client=self._cognite_client,
)
elif not self.data:
return PowerAssetList([], cognite_client=self._cognite_client)
else:
raise WrongPowerTypeError(
f"Can't get Generating Units [{power_type}] for a list of {self.type}"
)
def non_conform_loads(self, base_voltage: Iterable = None) -> "PowerAssetList":
if self.has_type("Substation"):
return self.relationship_sources("NonConformLoad", base_voltage=base_voltage)
elif not self.data:
return PowerAssetList([], cognite_client=self._cognite_client)
else:
raise WrongPowerTypeError(f"Can't get NonConformLoad for a list of {self.type}")
def load_duration_curve(
self,
start,
end="now",
terminal=1,
measurement_type="ThreePhaseActivePower",
timeseries_type="estimated_value",
granularity="1h",
dropna=True,
index_granularity=0.1,
) -> "pd.DataFrame":
"""See ACLineSegment#load_duration_curve"""
if self.type not in [
"ACLineSegment", "PowerTransformerEnd", "SynchronousMachine"
]: # , "PowerTransferCorridor"
raise WrongPowerTypeError(
f"Can't get load duration curves dataframe for a list of {self.type}"
)
if len(self.data) > 1000:
raise ValueError(
"Too many line segments in this list to get load duration curves"
)
res_list = execute_tasks_concurrently(
ACLineSegment.load_duration_curve,
[(a, start, end, terminal, measurement_type, timeseries_type,
granularity, dropna, index_granularity) for a in self],
max_workers=10,
)
return pd.concat(res_list.joined_results(), axis=1)
def busbar_sections(self, base_voltage: Iterable = None):
if self.has_type("Substation"):
return self.relationship_sources("BusbarSection", base_voltage=base_voltage)
elif not self.data:
return PowerAssetList([], cognite_client=self._cognite_client)
else:
raise WrongPowerTypeError(f"Can't get ConformLoads for a list of {self.type}")
def current_limits_overview(self) -> "pd.DataFrame":
"""See ACLineSegment#current_limits_overview"""
if not self.has_type("ACLineSegment"):
raise WrongPowerTypeError(f"Can't get connected current limits dataframe for a list of {self.type}")
res_list = execute_tasks_concurrently(
ACLineSegment.current_limits_overview, [(a,) for a in self], max_workers=10
)
return pd.concat(res_list.joined_results())
def shunt_compensators(self):
if self.has_type("Substation"):
return self.relationship_sources("ShuntCompensator")
elif not self.data:
return PowerAssetList([], cognite_client=self._cognite_client)
else:
raise WrongPowerTypeError(
f"Can't get ShuntCompensator for a list of {self.type}")
def power_transformers(self, grid_type: Optional[str] = None) -> "PowerAssetList":
"""Shortcut for finding the associated PowerTransformer for a list of PowerTransformerEnd or Substation"""
if self.has_type("PowerTransformerEnd"):
return self.relationship_targets("PowerTransformer", grid_type=grid_type)
elif self.has_type("Substation"):
return self.relationship_sources("PowerTransformer", grid_type=grid_type)
elif not self.data:
return PowerAssetList([])
else:
raise WrongPowerTypeError(f"Can't get PowerTransformers for a list of {self.type}")
def ac_line_segments(self, base_voltage: Iterable = None, grid_type: Optional[str] = None):
"""Shortcut for finding the associated ACLineSegment for a list of PowerTransformer, Substation or Terminal"""
if self.has_type("Substation"):
return self.terminals().ac_line_segments(base_voltage=base_voltage, grid_type=grid_type)
elif self.has_type("Terminal"):
return self.relationship_targets(
"ACLineSegment", relationship_type="connectsTo", base_voltage=base_voltage, grid_type=grid_type
)
elif not self.data:
return PowerAssetList([], cognite_client=self._cognite_client)
else:
raise WrongPowerTypeError(f"Can't get ACLineSegments for a list of {self.type}")
def connected_substations(
self,
level: int = 1,
exact: bool = False,
include_lines=False,
base_voltage: Iterable = None,
grid_type: Optional[str] = None,
) -> "PowerAssetList":
"""Retrieves substations connected within level connections through ac_line_segments with base voltages within the specified range
Args:
level: number of connections to traverse
exact: only return substations whose minimum distance is exactly level
include_lines: also return ACLineSegments that make up the connections. Can not be used in combination with exact.
base_voltage: only consider ACLineSegments with these base voltage
grid_type: only consider ACLineSegments of this grid type
"""
if exact and include_lines:
raise ValueError(
"Can not include lines when an exact distance is requested")
if not self.has_type("Substation"):
raise WrongPowerTypeError(
f"Can't get connected substations for a list of {self.type}")
visited_substations = set(self.data)
visited_lines = set()
substations_at_level = self
for i in range(level):
ac_line_segments = substations_at_level.ac_line_segments(
base_voltage=base_voltage, grid_type=grid_type)
substations_at_level = ac_line_segments.substations()
substations_at_level.data = [
a for a in substations_at_level.data
if a not in visited_substations
]
if not substations_at_level:
break
visited_lines.update(ac_line_segments)
visited_substations.update(substations_at_level)
if exact:
returned_assets = substations_at_level
elif include_lines:
returned_assets = list(visited_substations) + list(visited_lines)
else:
returned_assets = visited_substations
return PowerAssetList(list(returned_assets),
cognite_client=self._cognite_client)
def substations(self) -> "PowerAssetList":
"""Shortcut for finding the associated Substations for a list of PowerTransformer, GeneratingUnit, (Non)ConformLoad, ACLineSegment or Terminal"""
if (self.has_type("PowerTransformer") or self.has_type("Terminal")
or self.has_type("ConformLoad")
or self.has_type("NonConformLoad")
or self.has_type("WindGeneratingUnit")
or self.has_type("ThermalGeneratingUnit")
or self.has_type("HydroGeneratingUnit")
or self.has_type("BusbarSection")):
return self.relationship_targets("Substation")
elif self.has_type("ACLineSegment"):
return self.terminals().substations()
elif not self.data:
return PowerAssetList([], cognite_client=self._cognite_client)
else:
raise WrongPowerTypeError(
f"Can't get substations for a list of {self.type}")
