def _generate_interface_bounds(mb, i_n, minimum_limit, maximum_limit,
neg_slacks, pos_slacks):
if neg_slacks and i_n in mb.pfi_slack_neg:
neg_slack = mb.pfi_slack_neg[i_n]
else:
neg_slack = None
if pos_slacks and i_n in mb.pfi_slack_pos:
pos_slack = mb.pfi_slack_pos[i_n]
else:
pos_slack = None
return libbranch.generate_thermal_bounds(mb.pfi[i_n], minimum_limit,
maximum_limit, neg_slack,
pos_slack)
def _generate_branch_thermal_bounds(mb, bn, thermal_limit, neg_slacks,
pos_slacks):
if neg_slacks and bn in mb.pf_slack_neg:
neg_slack = mb.pf_slack_neg[bn]
else:
neg_slack = None
if pos_slacks and bn in mb.pf_slack_pos:
pos_slack = mb.pf_slack_pos[bn]
else:
pos_slack = None
return libbranch.generate_thermal_bounds(mb.pf[bn], -thermal_limit,
thermal_limit, neg_slack,
pos_slack)
def _generate_contingency_bounds(mb, cn, minimum_limit, maximum_limit):
if cn in mb.pfc_slack_pos.index_set():
if cn not in mb.pfc_slack_pos:
neg_slack = mb.pfc_slack_neg[cn]
pos_slack = mb.pfc_slack_pos[cn]
assert len(mb.pfc_slack_pos) == len(mb.pfc_slack_neg)
new_var = True
else: # the constraint could have been added and removed
neg_slack = mb.pfc_slack_neg[cn]
pos_slack = mb.pfc_slack_pos[cn]
new_var = False
# initialize to 0.
neg_slack.value = 0.
pos_slack.value = 0.
else:
neg_slack = None
pos_slack = None
new_var = False
return libbranch.generate_thermal_bounds(mb.pfc[cn], minimum_limit,
maximum_limit, neg_slack,
pos_slack), new_var
def _generate_branch_thermal_bounds(mb, bn, thermal_limit):
if bn in mb.pf_slack_pos.index_set():
if bn not in mb.pf_slack_pos:
neg_slack = mb.pf_slack_neg[bn]
pos_slack = mb.pf_slack_pos[bn]
assert len(mb.pf_slack_pos) == len(mb.pf_slack_neg)
new_var = True
else: # the constraint could have been added and removed
neg_slack = mb.pf_slack_neg[bn]
pos_slack = mb.pf_slack_pos[bn]
new_var = False
# initialize to 0.
neg_slack.value = 0.
pos_slack.value = 0.
else:
neg_slack = None
pos_slack = None
new_var = False
return libbranch.generate_thermal_bounds(mb.pf[bn], -thermal_limit,
thermal_limit, neg_slack,
pos_slack), new_var