def power_flow_worker(variation: int, nbus, nbr, n_tr, bus_names, branch_names,
transformer_names, bus_types,
calculation_inputs: List[SnapshotData],
options: PowerFlowOptions, dP, return_dict):
"""
Run asynchronous power flow
:param variation: variation id
:param nbus: number of buses
:param nbr: number of branches
:param n_tr:
:param bus_names:
:param branch_names:
:param transformer_names:
:param bus_types:
:param calculation_inputs: list of CalculationInputs' instances
:param options: PowerFlowOptions instance
:param dP: delta of active power (array of values of size nbus)
:param return_dict: dictionary to return values
:return: Nothing because it is a worker, the return is done via the return_dict variable
"""
# create new results
pf_results = PowerFlowResults(n=nbus,
m=nbr,
n_tr=n_tr,
n_hvdc=0,
bus_names=bus_names,
branch_names=branch_names,
transformer_names=transformer_names,
hvdc_names=(),
bus_types=bus_types)
logger = Logger()
# simulate each island and merge the results
for i, calculation_input in enumerate(calculation_inputs):
if len(calculation_input.vd) > 0:
# run circuit power flow
res = single_island_pf(circuit=calculation_input,
Vbus=calculation_input.Vbus,
Sbus=calculation_input.Sbus -
dP[calculation_input.original_bus_idx],
Ibus=calculation_input.Ibus,
branch_rates=calculation_input.branch_rates,
options=options,
logger=Logger())
# merge the results from this island
pf_results.apply_from_island(
results=res,
b_idx=calculation_input.original_bus_idx,
br_idx=calculation_input.original_branch_idx,
tr_idx=calculation_input.original_tr_idx)
else:
logger.add_info('No slack nodes in the island', str(i))
return_dict[variation] = (pf_results, logger)
class ExportAllThread(QThread):
progress_signal = Signal(float)
progress_text = Signal(str)
done_signal = Signal()
def __init__(self, circuit, simulations_list, file_name):
"""
Constructor
:param simulations_list: list of GridCal simulation drivers
:param file_name: name of the file where to save (.zip)
"""
QThread.__init__(self)
self.circuit = circuit
self.simulations_list = simulations_list
self.file_name = file_name
self.valid = False
self.logger = Logger()
self.error_msg = ''
self.__cancel__ = False
def run(self):
"""
run the file save procedure
"""
# try:
path, fname = os.path.split(self.file_name)
self.progress_text.emit('Flushing ' + fname + ' into ' + fname + '...')
self.logger = Logger()
names_dict = {
DeviceType.BusDevice:
self.circuit.bus_names,
DeviceType.BranchDevice:
self.circuit.branch_names,
DeviceType.BusDevice.LoadDevice:
self.circuit.get_load_names(),
DeviceType.BusDevice.GeneratorDevice:
self.circuit.get_controlled_generator_names(),
DeviceType.BusDevice.BatteryDevice:
self.circuit.get_battery_names()
}
# open zip file for writing
try:
with zipfile.ZipFile(self.file_name, 'w',
zipfile.ZIP_DEFLATED) as myzip:
n = len(self.simulations_list)
for k, driver in enumerate(self.simulations_list):
self.progress_signal.emit((k + 1) / n * 100.0)
for available_result in driver.results.available_results:
# ge the result type definition
result_name, device_type = available_result.value
self.progress_text.emit('flushing ' +
driver.results.name + ' ' +
result_name)
# save the DataFrame to the buffer
mdl = driver.results.mdl(result_type=available_result)
if mdl is not None:
with StringIO() as buffer:
filename = driver.results.name + ' ' + result_name + '.csv'
try:
mdl.save_to_csv(buffer)
myzip.writestr(filename, buffer.getvalue())
except ValueError:
self.logger.add_error(
'Value error', filename)
else:
self.logger.add_info('No results for ' +
driver.results.name + ' - ' +
result_name)
except PermissionError:
self.logger.add('Permission error.\nDo you have the file open?')
self.valid = True
# post events
self.progress_text.emit('Done!')
self.done_signal.emit()
def cancel(self):
self.__cancel__ = True