# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at https://mozilla.org/MPL/2.0/.
# SPDX-License-Identifier: MPL-2.0
import json
from VeraGridEngine.Devices.multi_circuit import MultiCircuit
import VeraGridEngine.Devices as dev
[docs]
def load_iPA(file_name) -> MultiCircuit:
"""
Read the nuts' Indra file format
:param file_name: json file name
:return: MultiCircuit
"""
circuit = MultiCircuit()
with open(file_name) as json_file:
data = json.load(json_file)
# elements dictionaries
xfrm_dict = {entry['IdEnRed']: entry for entry in data['Transformadores']}
# nodes_dict = {entry['id']: entry for entry in data['Nudos']}
nodes_dict = dict()
buses_dict = dict()
for entry in data['Nudos']:
nodes_dict[entry['id']] = entry
bus = dev.Bus(name=str(entry['id']))
buses_dict[entry['id']] = bus
if entry['id'] > 0: # omit the node 0 because it is the "earth node"...
circuit.add_bus(bus)
gen_dict = {entry['IdEnRed']: entry for entry in data['Generadores']}
load_dict = {entry['IdEnRed']: entry for entry in data['Consumos']}
sw_dict = {entry['IdEnRed']: entry for entry in data['Interruptores']}
# main grid
vector_red = data['Red']
"""
{'id': 0,
'Tipo': 1,
'E': 0,
'EFase': 0,
'Tomas': 0,
'R1': 1e-05,
'X1': 1e-05,
'R0': 1e-05,
'X0': 1e-05,
'RN': 1e-05,
'XN': 1e-05,
'P': 0,
'Q': 0,
'Nudo1': 2410,
'Nudo2': 2403,
'Carga_Max': -1,
'ClassID': 1090,
'ClassMEMBER': 98076366,
'Conf': 'abc',
'LineaMT': '2030:98075347',
'Unom': 15.0}
"""
for entry in vector_red:
# pick the general attributes
identifier = entry['id']
tpe = entry['Tipo']
n1_id = entry['Nudo1']
n2_id = entry['Nudo2']
# get the Bus objects associated to the bus indices
bus1 = buses_dict.get(n1_id, None)
bus2 = buses_dict.get(n2_id, None)
if tpe == 0: # Fuente de Tensión(elemento Ptheta)
# pick the bus that is not the earth bus...
if n1_id == 0:
bus = bus2
else:
bus = bus1
bus.is_slack = True
elm = dev.Generator(name='Slack')
circuit.add_generator(bus, elm)
elif tpe == 1: # Elemento impedancia(lineas)
V = entry['Unom']
Zbase = V * V / circuit.Sbase
if identifier in load_dict.keys():
# load!!!
print('Load found in lines: WTF?')
else:
# line!!!
r = entry['R1'] / Zbase
x = entry['X1'] / Zbase
elm = dev.Line(bus_from=bus1, bus_to=bus2, name=str(identifier), r=r, x=x)
circuit.add_line(elm)
elif tpe == 2: # Elemento PQ
# pick the bus that is not the earth bus...
if n1_id == 0:
bus = bus2
else:
bus = bus1
p = entry['P'] # power in MW
q = entry['Q']
elm = dev.Load(name=str(identifier), P=p*1e-3, Q=q * 1e-3)
circuit.add_load(bus, elm)
elif tpe == 3: # Elemento PV
pass
elif tpe == 4: # Reg de tensión
V = entry['Unom']
Zbase = V * V / circuit.Sbase
r = entry['R1'] / Zbase
x = entry['X1'] / Zbase
elm = dev.Transformer2W(bus_from=bus1, bus_to=bus2, name=str(identifier), r=r, x=x)
circuit.add_transformer2w(elm)
elif tpe == 5: # Transformador
V = entry['Unom']
Zbase = V * V / circuit.Sbase
r = entry['R1'] / Zbase
x = entry['X1'] / Zbase
elm = dev.Transformer2W(bus_from=bus1, bus_to=bus2, name=str(identifier), r=r, x=x)
circuit.add_transformer2w(elm)
# return the circuit
return circuit