def bus_bus_net():
net = pp.create_empty_network()
add_grid_connection(net)
for _u in range(4):
pp.create_bus(net, vn_kv=.4)
pp.create_load(net, 5, p_kw=10)
pp.create_switch(net, 3, 6, et="b")
pp.create_switch(net, 4, 5, et="b")
pp.create_switch(net, 6, 5, et="b")
pp.create_switch(net, 0, 7, et="b")
create_test_line(net, 4, 7)
pp.create_load(net, 4, p_kw=10)
return net
def add_test_ext_grid_gen_switch(net):
zone = "test_ext_grid_gen_switch"
vn_kv = 20.
b1 = pp.create_bus(net, vn_kv=vn_kv, zone=zone)
b2 = pp.create_bus(net, vn_kv=vn_kv, zone=zone)
b3 = pp.create_bus(net, vn_kv=vn_kv, zone=zone)
b4 = pp.create_bus(net, vn_kv=vn_kv, zone=zone)
b5 = pp.create_bus(net, vn_kv=vn_kv, zone=zone)
pp.create_switch(net, bus=b1, element=b2, et="b")
create_test_line(net, b2, b3)
create_test_line(net, b3, b4)
pp.create_switch(net, bus=b4, element=b5, et="b")
pp.create_ext_grid(net, bus=b1, vm_pu=1.01)
pp.create_gen(net, bus=b5, vm_pu=1.015, p_mw=0.3)
return net
def test_bus_bus_switches():
net = pp.create_empty_network()
add_grid_connection(net)
for _u in range(4):
pp.create_bus(net, vn_kv=.4)
pp.create_load(net, 5, p_kw=10)
pp.create_switch(net, 3, 6, et="b")
pp.create_switch(net, 4, 5, et="b")
pp.create_switch(net, 6, 5, et="b")
pp.create_switch(net, 0, 7, et="b")
create_test_line(net, 4, 7)
pp.create_load(net, 4, p_kw=10)
pp.runpp(net)
assert net.res_bus.vm_pu.at[3] == net.res_bus.vm_pu.at[4] == net.res_bus.vm_pu.at[5] == \
net.res_bus.vm_pu.at[6]
assert net.res_bus.vm_pu.at[0] == net.res_bus.vm_pu.at[7]
net.bus.in_service.at[5] = False
pp.runpp(net)
assert net.res_bus.vm_pu.at[3] == net.res_bus.vm_pu.at[6]
assert net.res_bus.vm_pu.at[0] == net.res_bus.vm_pu.at[7]
assert pd.isnull(net.res_bus.vm_pu.at[5])
assert net.res_bus.vm_pu.at[6] != net.res_bus.vm_pu.at[4]
def test_makeYbus():
# tests if makeYbus fails for nets where every bus is connected to each other
net = pp.create_empty_network()
b1, b2, l1 = add_grid_connection(net)
# number of buses to create
n_bus = 20
bus_list = []
# generate buses and connect them
for _ in range(n_bus):
bus_list.append(pp.create_bus(net, vn_kv=20.))
# connect the first bus to slack node
create_test_line(net, bus_list[0], b2)
# iterate over every bus and add connection to every other bus
for bus_1 in bus_list:
for bus_2 in bus_list:
# add no connection to itself
if bus_1 == bus_2:
continue
create_test_line(net, bus_1, bus_2)
assert runpp_with_consistency_checks(net)
def add_test_ext_grid(net):
b1, b2, ln = add_grid_connection(net, zone="test_ext_grid")
b3 = pp.create_bus(net, vn_kv=20., zone="test_ext_grid")
create_test_line(net, b2, b3)
pp.create_ext_grid(net, b3, vm_pu=1.02, va_degree=3.)
return net
