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results_gen.py
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results_gen.py
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# -*- coding: utf-8 -*-
# Copyright (c) 2016-2018 by University of Kassel and Fraunhofer Institute for Energy Economics
# and Energy System Technology (IEE), Kassel. All rights reserved.
import numpy as np
from pandapower.idx_bus import VM, VA
from pandapower.idx_gen import PG, QG
from pandapower.auxiliary import _sum_by_group
def _get_gen_results(net, ppc, bus_lookup_aranged, pq_bus):
ac = net["_options"]["ac"]
eg_end = len(net['ext_grid'])
gen_end = eg_end + len(net['gen'])
b, p, q = _get_ext_grid_results(net, ppc)
# get results for gens
if gen_end > eg_end:
b, p, q = _get_pp_gen_results(net, ppc, b, p, q)
if len(net.dcline) > 0:
_get_dcline_results(net)
b = np.hstack([b, net.dcline[["from_bus", "to_bus"]].values.flatten()])
p = np.hstack([p, -net.res_dcline[["p_from_kw", "p_to_kw"]].values.flatten()])
q = np.hstack([q, -net.res_dcline[["q_from_kvar", "q_to_kvar"]].values.flatten()])
if not ac:
q = np.zeros(len(p))
b_sum, p_sum, q_sum = _sum_by_group(b, p, q)
b = bus_lookup_aranged[b_sum]
pq_bus[b, 0] += p_sum
pq_bus[b, 1] += q_sum
def _get_ext_grid_results(net, ppc):
ac = net["_options"]["ac"]
# get results for external grids
eg_is_mask = net["_is_elements"]['ext_grid']
ext_grid_lookup = net["_pd2ppc_lookups"]["ext_grid"]
n_res_eg = len(net['ext_grid'])
# indices of in service gens in the ppc
eg_is_idx = net["ext_grid"].index.values[eg_is_mask]
gen_idx_ppc = ext_grid_lookup[eg_is_idx]
# read results from ppc for these buses
p = np.zeros(n_res_eg)
q = np.zeros(n_res_eg)
p[eg_is_mask] = -ppc["gen"][gen_idx_ppc, PG] * 1e3
# store result in net['res']
net["res_ext_grid"]["p_kw"] = p
# if ac PF q results are also available
if ac:
q[eg_is_mask] = -ppc["gen"][gen_idx_ppc, QG] * 1e3
net["res_ext_grid"]["q_kvar"] = q
# get bus values for pq_bus
b = net['ext_grid'].bus.values
# copy index for results
net["res_ext_grid"].index = net['ext_grid'].index
return b, p, q
def _get_p_q_gen_resuts(net, ppc):
_is_elements = net["_is_elements"]
gen_is_mask = _is_elements['gen']
gen_lookup = net["_pd2ppc_lookups"]["gen"]
gen_is_idx = net["gen"].index[gen_is_mask]
# indices of in service gens in the ppc
if np.any(_is_elements["gen"]):
gen_idx_ppc = gen_lookup[gen_is_idx]
else:
gen_idx_ppc = []
# read results from ppc for these buses
n_res_gen = len(net['gen'])
p_gen = np.zeros(n_res_gen)
p_gen[gen_is_mask] = -ppc["gen"][gen_idx_ppc, PG] * 1e3
q_gen = None
if net["_options"]["ac"]:
q_gen = np.zeros(n_res_gen)
q_gen[gen_is_mask] = -ppc["gen"][gen_idx_ppc, QG] * 1e3
net["res_gen"]["q_kvar"] = q_gen
net["res_gen"]["p_kw"] = p_gen
return p_gen, q_gen
def _get_v_gen_resuts(net, ppc):
# lookups for ppc
bus_lookup = net["_pd2ppc_lookups"]["bus"]
# in service gens
gen_is_mask = net["_is_elements"]['gen']
bus_idx_ppc = bus_lookup[net["gen"]["bus"].values[gen_is_mask]]
n_res_gen = len(net['gen'])
# voltage magnitudes
v_pu = np.zeros(n_res_gen)
v_pu[gen_is_mask] = ppc["bus"][bus_idx_ppc][:, VM]
# voltage angles
v_a = np.zeros(n_res_gen)
v_a[gen_is_mask] = ppc["bus"][bus_idx_ppc][:, VA]
net["res_gen"]["vm_pu"] = v_pu
net["res_gen"]["va_degree"] = v_a
return v_pu, v_a
def _get_pp_gen_results(net, ppc, b, p, q):
p_gen, q_gen = _get_p_q_gen_resuts(net, ppc)
_get_v_gen_resuts(net, ppc)
net["res_gen"].index = net['gen'].index
b = np.hstack([b, net['gen'].bus.values])
p = np.hstack([p, p_gen])
if net["_options"]["ac"]:
q = np.hstack([q, q_gen])
return b, p, q
def _get_dcline_results(net):
dc_gens = net.gen.index[(len(net.gen) - len(net.dcline) * 2):]
from_gens = net.res_gen.loc[dc_gens[1::2]]
to_gens = net.res_gen.loc[dc_gens[::2]]
net.res_dcline.p_from_kw = from_gens.p_kw.values
net.res_dcline.p_to_kw = to_gens.p_kw.values
net.res_dcline.pl_kw = from_gens.p_kw.values + to_gens.p_kw.values
net.res_dcline.q_from_kvar = from_gens.q_kvar.values
net.res_dcline.q_to_kvar = to_gens.q_kvar.values
net.res_dcline.vm_from_pu = from_gens.vm_pu.values
net.res_dcline.vm_to_pu = to_gens.vm_pu.values
net.res_dcline.va_from_degree = from_gens.va_degree.values
net.res_dcline.va_to_degree = to_gens.va_degree.values
net.res_dcline.index = net.dcline.index